₦airaland Forum

jahjehova: @all: Pls I need help

I travelled to abuja where I changed my brakepads 4 d four wheels. As I was coming back, I noticed d brake pedal vibrated as I steped on it. Immediately, the ETS & ABS lights came on, The speedometer failed, cruise control dosent work anymore. Scary part is dat d lights turn off attimes but then come back on.

One mecho says its d master brake. NUEL autos say its d wheel speed sensor. Please any idea from the house?

I help ASAP. Cant imagine driving without traction control and ABS.

Service manual and owners manual also needed. Mine is german. Tanx.

I can be reached at
08060509817
deleonipede@gmail.com

You didn't mention the make and model of your car.
However, did the mechanic who installed your brake pads plug back your ABS sensor? If not make sure that is dusted properly and plugged back; Before he could remove the brake pad he had to unplug the the ABS sensor to make way, and that must be plugged back properly depending on the model of your Benz.

For the speedometer,cruise control light etc to malfunction, that is a coincidence. what you could do there is to check your instrument cluster, if possible uninstall the entire instrument cluster, remove the glass casing and clean the speedometer pins with spirit, do same to all other pins there about 2 to 3 times.This must be handled very carefully, you can hire the service of a very meticulous technician to do that for you, if you cant handled it. I did mine, the manual type and my neighbours, the digital type, though His wasn't easy, but they all worked.If you need my guide i can guide you with pictures at my spare time. Make sure you dust everywhere there very well and install it back, that could work.If yours is digital, i would prefer a very good watch repairer to handle it for you, i only had to work on my neighbours own, the digital,as the last resort after having combed the market tirelessly and installed 17 malfunction ones.
Good luck

Trac: The two electrical fans are not designed to come on at the conditions you are stating

There are also many issues you will face but that is completely irrelevant. If it was not fitted with an air-conditioner, there are variables to consider but you cannot usurp the heating/cooling specification for the engine.

[quote author=au.hanson]Please what are these variables? I was expecting a direction on this. You can't imagine how much i want to change this cooling system back to factory, if i can get it power source. I wouldn't even mind replacing it ,if it was removed.[/quote]Hello Trac, don't tell me that you've thrown in the towel just yet, remember this is scientific argument, a lot of people would learn a thing or two from here. This is your profession; i am only practicing an hobby here but must practice it very well, just like i did in; photography; videoing and in systems repairs. We must come to a logical conclusion. Maybe i could be wrong, even Mercedes Benz could be wrong and may have reviewed this in their subsequent models; could be the reason why w203 has just one but effective fan system that fans from outside via the condensing coils to the radiator system; could even be the reason why they have failing compressors. Auto world do recall vehicles from their engineering errors, Mercedes Benz can't be an exception; may have done so too at one time or the other; and should have done so too with their wire hareness, no doubt about these. Don't vouch for them. But let's reason things together scientifically and logically too.

Maybe my own car didn't come with an ac system just like my Benz 190 because i didn't see the fan control module , or it may have been removed, but i'm confidence that i can still replace it that not withstanding.But let's reason these first of all; please do not ignore these and take me through literature again, but let's be practical.

However, the fact remains that when you start the engine, "let it reach normal operating temperature and then turn the A/C on. The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. On many vehicles, there may be two fans: a main cooling fan(viscous fan) for the radiator, and a second fan(electrical fan(s)) for the condenser. Both fans should come on when the A/C is on".

"If one or both fans failed to come on, the lack of additional cooling provided by the fan may cause poor A/C cooling performance, and it may cause the A/C compressor to overheat and fail. The engine may also run too hot and overheat, too". This is my argument.

But i want to here from you the other variables to consider..and the other issues that you said i may face, though you termed them as irrelevant?

thanks in anticipation for your response

kuntash: Just as I explained in my last post, the module that kicks the fan and regulates its speed is right in front of the driver's side of the front Tyre. about 5 separate wires socket hooking onto the module.

Hello Kuntash, it looks like you have what i have been looking for all these while? Your engine architecture is similar to mine, pls kindly show me the picture of this stated module above in your engine, so that i can use it to trace mine and return my fan as well back to factory connection? Thanks.

smartchoice: which merc model is this?

This is 2014 s class Benz

Trac: If it was not fitted with an air-conditioner, there are variables to consider but you cannot usurp the heating/cooling specification for the engine.

Please what are these variables? I was expecting a direction on this. You can't imagine how much i want to change this cooling system back to factory, if i can get it power source. I wouldn't even mind replacing it ,if it was removed.

yungboss: ^^^ that was nice bro, good to read this. My two cars do not drop significantly on the rpm when i turn on the air conditioner, my e36 1993 idles at about 800rpm, when i turn on the ac, it barely alters the rpm, it's almost the same, same as the other car. I think going as low as 400 is uncharacteristic of the c class...i used a c220, and i had that experience on the car..do you have something like a hydraulic shock absorber in the engine?

Thanks man. However, not only mine does this,my neighbours w203 c200 kompressor, and w202 c280 stays at 500rpm too. His w203 c200 goes up to 600 when when he put on the air conditioner, but his w202 c280 remains at 500rpm when engaged the ac, atimes drop to 400 rpm and back up again

I don't know if you are asking of the engine shock at the front, behind the pulleys? , yes i do

A friend came to my house today being a public holiday and said, "catch you".. The sound of his w202 Benz c180 was so awful in the real sense of it, and the car was rough idling , couldn't even carry His ac anymore; despite the raising of his engine to about 1300 rpm. I asked him why He disgracing us Benz enthusiast by driving that kind of car? He lamented that he doesn't have the kind of money His mechanic told him to bring to buy new nuzzles, actuator etc; everything rounded up to about 40,000.00. So the guy has to pad some cables and padding on the throttle body as well as raise the rpm just for him to manage driving His Benz.

To cut the long story short, i decided to check his MAF, clean it up. uninstall His actuator body(what you would call the throttle body)and did a thorough cleaning on it. In less than 1hour, i put everything back in place and install back the throttle body , crank the engine and the rev went to about 3500rpm. I put off the engine, came back to the actuator(the throttle body) adjusted the vertical long metal behind it in a clockwise direction for about 7 rounds(7 full turnings), crank the engine again and adjusted the throttle cable, the rev went down to about 1000 rpm and later drop to 900 rpm on idling, the idling became so smooth but with very little ups.he was astonished..i wasn't satisfy. i went back to it with a 5 alen key, open up the plugs chamber clean up the dame plugs and put them back, went to the MAF, removed the air filter and took it to a vulcaniser to blow off the dust with their air pressure equipment .I brought it and install back to his car and turn up the ignition, the engine came alive with sweet melody at 1000 rpm but later drop down to about 800 rpm with smooth idling. He put on the ac, the revving drop down to 650 rpm but stabilises at 700 rpm. I revved the car to about 3500 rpm and released my leg from throttle plate, it drops to about 400 rpm and return back to 700 rpm without going off while the ac on; i turn the steering to the extreme left and to the extreme right, the car didn't go off, i told him , 'your ride is in order'. He shouted and confess that the revving has always pull down to nothing less down 6000 rpm when he put on the ac(i.e if the revving was at 1200 rpm , once the load from ac comes up it will drop to 5000 rpm and would off the engine on revving to anything high or breaking and clutching to select gear, thats why the revving is kept at 7000 rpm and he rarely uses the ac ). I asked him if he did not noticed increase fuel consumption ,he said he does but there's nothing he could do

He took it out for testing with his air conditioner on and came back with a bottle of wine, we celebrated together. i was then moved to do some preventive maintenance too on my own machine since today is a public holiday, at least let me give my ride a treat. so i went down to business on my Benz C180 too and later my Benz 190, just to keep them lively; needless to say my car idles at 500 rpm even when the ac is put on, and may atimes drop to 400 rpm and back again and hardly goes off except i miscluthed, since i am new to this clutching thing,. i have been driving automatic before now.

We are suppose to run these cars (1.8L)Benz with unleaded fuel( that is fuel that has additives to take care of the carbon building up in the system , but unfortunately in Nigeria , we buy anything as fuel , as there is no classified fuel over here . So this carbon build up atimes to cause all these problems including rough idling. This is very perculiar with Benz ride of this model, that is why those of you who goes for scanning would receive error code P0171, 0174, 0172, 0175(codes set with regard to fuel trim malfunctions in German and American cars. So it is good to periodically do this preventive maintenance on your Benz ride

smartchoice: DETAILED, THANKS AU.HANSON. IF YOU CAN STILL GET THE NAME/SPECIFIC PEUGEOT COMPRESSOR USED I'D APPREC8 IT.

The name is Sanden 507 model compressor..was able to go under and check it out today.

That of my 190 is sanden 508 model

cheers

Ikenna351: I traced the factory source of the fans trigger to radiator sensor. I removed the wrong connection and used fresh wire to reconnect it to factory.

Ikenna.

Oh dear! thanks.. I guess this is a silverlike shaft material about the diameter of a pen with connecting wire located in the front bumper behind the front number plate bracket? You dont know how much you've solved my problem now dude .. I have been looking for where to factory connect my w202 Benzc180 electrical fans(the external fans)

Ikenna351: DAY 3

Later in the evening of the Easter Sunday, I drove off to Enugu again via Enugu-Onitsha Expressway.

I got to Aroma Junction Awka and met a small traffic Jam (Easter celebrations, i guess). While at the traffic, I noticed that my temperature guage was reading beyond the normal engine operating temperature. By the time i got to Government House Awka, along that Expressway, the overheating warning sign was already showing. So, I stopped at Ikenga Junction, still on that Expressway . I left the engine running, came out of the car, opened the hood, checked what could be the issue. There! The 2 radiator fans were not spinning, which was why it started to overheat while i was at the traffic jam. So i then switched off the engine. Then it strucked me! Few months before i embacked on that trip, i worked on the abused radiator fan harness. The previous owner had the fan spinning constantly as soon as the ignition would be switched on. So I reverted it to factory. But I had to buy some new flexible wires to do the job. The quality of wires in our market is nothing to write home about. So i quickly checked those wires and there was the culprit: the fake wire! The wires were burnt. Hmm! Luckly, i have some spare flex wires with me in the car. I quickly changed the fake burnt wires, and started the car again and allowed it to idle to get to 90 degree C, since the engine has cooled off a little while changing the burnt wires. As soon as the temp guage hit 90-93 degree C, the fan started spinning again. Phew! The work didnt take upto 20 mins to diagnose and get fixed.

Pic of the car at the expressway attached, after the fans issue were sorted out.

Ikenna.

Please how/where did you tap your power source from to connect it back to factory?

Ikenna351: Arrived Lokoja.

I arrived Lokoja at 8:40am, meaning i spent 2hrs 40 mins, from Abuja to Lokoja. The Tripmeter indicated that Abuja to Lokoja was 212 kilometers.

Ikenna.

Your 505 is still very much intact, beautiful!!

Congrats my guy, i'm now celebrating with you overhere with your 210hp manual tranny beast-thats a machine

Ikenna351: It serves as the airfilter. You simply change the conventional airfilter element and replace with the cone filter.

http://www.knfilters.com/universal/universal.htm


Please note that such filters are designed or built for race, because of the added power and noise it produces when in action. It maybe illegal in some countries for non race cars to install it.

Note that once you install it, your engine sound will change and sound aggresively when under heavy acceleration. They are designed for speed and the sounds are there to give you the feel of the speed you are doing.

Ikenna

Oh yeah! i like this, let me digress you a little bro,express permission from all lions: i need this stuff for my benz c180.Is there any one i can order that could fit in there, and definitely replace this car air filter, with such resultant effects as in: power and fuel economy with the sporty note sound as you state above?

Trac: MB will not release their proprietary information to the public. The basic circuitry will be disclosed but not the design principles. This is their intellectual property. The same goes for all manufacturers.

If i can get this basic circuitry, i can make do with it..I think i know what to do, If i can get a direct Benz c180 tokumbo that comes with manual tranny, and has not been tampered with, i'll get all the information i need from there. Cheers

Trac: You have altered the cooling. Iron and aluminium have different co-efficient of expansion. The cooling was designed that way so that you don't destroy your engine. You only have very little of a clearance and if you warp so bad, you'll need to get another head. As I stated, you are not smarter than the engineers that took more than a decade to design that engine. If your approach was best, they would have done so; but it isn't. Altering the system to cause the fan to come on sooner than designed is change in factory specification to the cooling. A lot in the engine depends on this configuration to work as intended.

This is why I said the laws of physics will not exclude you (iron and aluminium). I believe you are running an MB square engine.

Anyway, if you know what you are doing; then you know what's best for you.

On the contrary, the cooling still remains where it is with the viscous fan left at the factory settings(untampered). You and I knows that this car(Benz C180) does well with the viscous fan alone when your thermostat is still in order. I have test driven this car under the most stringent condition with the viscous fan alone and the system still worked perfectly ok.(Benz 190 wouldn't stand it).Some of these cars never came with the 2 external fans(electrical fans). What happened then when my fan stopped working,was that there was a partial contact between the connecting wires that connected the electrical fans to the relays(since i was using old wires),it wasn't the factory behavior as you stated( I went back to it, flips the wires at the front with my hands, they stop working, flip again they started working; that confirms that); Perhaps, when you hit gallops, with the nature of our road, it will lose contact and so on.

The rationale behind this is that, the ac unit adds extra load on the system, and the condensing coil needs a kind of air especially in tropical zone like ours to help cool the compressed air that the ac compressor sends to these condensing coils.The logic here is that, these external fans help the condensing coils to effectively cool these bundle of hot air/gas back to liquid( latent heat of vaporisation) before the air get back to the evaporator through the expansion valve and so on and so forth, this i have explained earlier.

So in my case, this fan is only provision for the ac units/load, has nothing to do with factory alteration of the cooling system( "Iron and aluminium differences in co-efficient of expansion" doesn't warrant here). The laws of Physics and electricity are well obeyed in this context.

When the ac is done at the desired temperature, the ac thermostat cut off the power from the ac/the external fans since they come from the same power source from the panel, so 'warping so hard such that you might get another head' can't happen here.

I don't know if you get the logic?

Now lets face fact, Mercedes Benz engineers didn't come to Africa when they were designing their cars for decades, the obvious happens here on a daily basis: I have seen a lot of toks(not even the modified ones) opened bonnet on our roads because of overheat..that is why despite their cooling systems design, single cells radiator has to change to double cells/or external fans provisioned in front to cope with this. No one would tell you not to change your radiator from single to double cells or otherwise, if you wouldn't want to lose your top Cylinder Gasket.

I like being practical,everything in life isn't just black and white, there are always some gray areas:

1. Mercedes Benz ac Compressors are a heck of trouble over here, that's why many including myself changed to Peugeot Compressors,because i don't have that kind of money to be spending on it.

2. Their cars that came with single cell radiator suffered so much overheat over here, that's why you see people change to double cell radiator/provisioning external fans to it. I change my Benz 190 from single cell radiator to double after having lose my top.

3. I added external fan to her(Benz 190) ac unit because of same overheat over here after having lose my top for the second time. I don't have to wait for Mercedes Benz engineers to come to Africa to see the reality on ground before doing this, not after all these experiences.

And many more...

smartchoice: DETAILED, THANKS AU.HANSON. IF YOU CAN STILL GET THE NAME/SPECIFIC PEUGEOT COMPRESSOR USED I'D APPREC8 IT.

Oh sorry! just saw this now, i was engaged in some systems development projects. Ok, ill try and get it for you then.

smartchoice: good one just wanted to be sure did put a peugeot cp on my w124 230e but the techie chose to put it onthe right hand side....thanks but like oliver twist I'll like to know the type of Peugeot compressor you used am sure your cp should work mine

Yeah! i use Sanden model, made in Japan written on the body(It may have even come from China, but the good news is that it is good),cant really remember the model, need to search for the receipt. I doubt if i can find it.. but the pulley bracket fit into that of benz very well.I'll try checking the body if i can find the name. the most important thing is the pulley thread at the head. although you can always buy another head that fit your pulley system to it , but that would mean constructing the head to the body. I have done that before on an older model for a friend who bought the one meant for 504/505 pulley-it was a heck of task, dnt think i should like to do it again.

Ikenna351: Am expecting the universal cone filter to arrive anytime this week. I would imagine what type of Animal the car would turn into with the extra power the filter will add to the factory power, including the increased fuel economy the filter will give the car too. I can't wait to install it as soon as it arrives.

Ikenna.

Please what do you mean by 'universal cone' filter? Are you talking about the 'drier' or something else ? Are you talking about the air filter in the PVC as in the case of Benz? How does it affect power and mpg? I am interested in everything that affect power and MPG

smartchoice: please a pix would help looking forward to working on mine too. It presently has a leak.

I only took few pix then, but they refuse loading.Let me try it again
There it goes:
1. In the first pix is the previous compressor under the steering pump
2. The second pix is the newly installed compressor under the steering pump. It looks dirty because i had to deal with an issue of expired steering oil hose spotted at the process of this installation, so the oils spills over there
3. Pictures 3 & 4, installing back the steering oil pump after i would have finished with the compressor installation .I also had an expired hose that would have caused serious leakage if i didn't replace it at this point. This also called for the services of a brass welder , that is why i said that this is the difficult part, fixing leaks. After all said and done , the system works perfectly well better off than my 190 , i guess Cclass has a better evaporator and blowers. My 190 didn't come with any so i bought one from the aftermarket for that ac unit

Trac: I hope you know what you are doing for you aren't smarter than the engineers that took more than a decade to design the engine. The two electrical fans are not designed to come on at the conditions you are stating. You should be aware of the relationship between iron and aluminium when mated. The laws of physics will not omit your case.
electrical issues.

In absence of the engineers guide on their system design , life must still continue with the laws of the science of Physics and electricity.

My Benz 190 came with no ac system and external fans, bought it almost like a scrab, i built a functional ac system for it and uses it full time for 6 years now because i don't like dust, only had to refill my gas 3years ago

Trac: What I explained to you is the factory cooling specification not the electrical fan system. I don't have the circuit diagram/routing plus I don't like electrical issues.

We are deliberating the same thing here. I never touched the factory cooling system that i met on ground, but rather the messed up ac system with its cooling units. I am still looking forward to where i'll get the factory cooling design specification for this model, so to set things perfect

smartchoice: Ik: am interested in changing my MB compressor to Peugeot but my system uses R134 freon gas, what would you suggest I do knowing that R134 can destroys seals on an R12 systems which the Sanden compressor carries? NOTE THIS ALSO AU HANSON

Smart guy,The R-134 refrigerant is the Mercedes Benz recommended refrigerant, nothing wrong about that. Mercedes Benz AC components were tailored to work well with it , but beware of fake ones in our market,trust our guys in collab. with Chinese fakers.Peugeot compressor shouldn't be an issue here.

All the compressor does is to put the refrigerant under pressure(you know the laws of gas when under pressure molecules start bombarding and becomes very hot) and send it to the condensing coils(condenser) at the front of your radiator or there about. The condenser then expells the heat that the refrigerant picks in the evaporator to the air flowing across it(that's why those two external fans are ideal for the ac unit of your Benz). When this heat are completely expelled by the condensing coils(the condenser) this will change the gas back to liquid, and gives up a bundle of heat called,the latent heat of vapourisation, this liquid then passes through the expansion valve to the evapourator, this is the coil inside your car. You know when gas loses pressure it becomes liquid(our secondary school physics).The liquid portion of the refrigerant absorbs the heat from the air across the coil and evaporates, it is from here that the car fan(blower, the one inside or under your dashboard, all of them resides here) circulates air across the evaporator into your ac vents and into your car, where you felt the comfort chilling of the ac

Where am i going? the dealers will tell you the 504 compressor that fit into your Benz bearing in mind, your Benz system of pulleys and and other component customised for R-134a refrigerant

If i were you , i wouldn't touch the compressor if it is still ok. In the ethics of my profession, courtesy demands that you do not disturb a working system unless it is malfunctioning, then can you explore it to the fullest. I will rather deal with the issue of the leakage of the coolant/refrigerant, because if the refrigerant leaks that means there's nothing to carry away the heat from the explanation above. If it is very serious, your system may have no pressure at all in it. Your hoses could expired and so on, they may have not use a tapelike( may not know the right name here, one white tapelike material that is sold N100.00 only to run on the threads before they fit the pipes to the compressor and the drier to prevent leaks etc,

It is easy to look for leaks, just look at the hoes and pipes and the connected points to and from the drier, the compressor etc for oily substance, and that's it. you may now need to loosen the systems, losing your refrigerant and drier to replace the leaking part- this is the difficult part

Deal with this first of all your compressor may still be ok.

Caution, If you haven't use the system for a very long time , after fixing this leaks make sure you flush the system with Pag oil and replace the drier to save your compressor from knocking . The Drier(receiver) is the components that acts as a filter for the refrigerant , its removes moisture and other contaminated components from the refrigerant before it get back to the compressor- you can now see the obvious why it should be changed and also why the system should be flushed in the first place with the right oil

smartchoice: Beautiful ride, a potential love story

Thanks man

smartchoice: @Au Hanson, enjoying your exploits...but why did you have to flush your system did it come with an R 12? also on which side did you place your new compressor?

I had to flush it before mounting the new compressor so that it will clean out all the dirts/dust that may have build up there over years of non usage and that such impurities wouldn't knocked the new installed compressor. Besides, i wouldn't have known the kind of refrigerant they have been using,rather would love to stick to Mercedes Benz recommended R-134 refrigerant to enhance a fresh new effective system.

I placed the compressor on the drivers side, the left side of the engine i mean to say, at the lower side of the pully under the steering oil pump, of course you have to uninstall the steering oil pump before before you can do it effectively and install it back after installing the compressor

Trac: What you have stated above is the proper operation for the vehicle. The operating temperature starts from 89degC (not an 87degC typo) to 101degC (for the four cylinders). The engine is just at its "warm" phase. Electrical fan kicks into stage-1 at 102degC and stage-2 takes over at 115degC and at 126degC, the air conditioner cuts off. At 130degC, the coolant will overheat (NOT the engine). At this point is where the trouble begins; heat related problems then overheating occurs. The car overheats according to design after 135degC; not from the cause of the engine but the coolant overheating. You can figure how the heat will quickly accumulate within a short period once the coolant has overheated. It is not uncommon to drive at 110degC. These are normal operating temperatures. There is no other road-going car that I know that operates as hot as a Benz. This is the four cylinder configuration.

From what you have stated, I assume you have three fans; two electrical and a mechanical viscous. The mechanical viscous kicks in at 102degC or when the two electrical fans have failed. Part of the purpose of the mechanical fan is to ensure duty when both fans have failed or other related emergencies. Both electrical fans should cut off right after the temperature falls right under 90degC.

It should be clear to you that MB engines are very hot engines and other vehicles don't run as hot. You don't play with the coolant, thermostat, water pump and its tensioner and the electrical settings and the grade of oil you put in there. The coolant it uses is the hybrid organic kind.

By now, you have an idea why I cautioned against Wahler. It isn't just the thermostat but the radiators too. The radiators don't hold well against the test of time compared to Behr. When the thermostat fails, you will not know. The gauge will read right; if care is not taken, engine disassembling repairs will be required for an overhaul.

What you have done is re-engineered your vehicle in a way unfit to the overall design. Your engine should not run cold under any circumstance. Kuntash did state at one point that some mechanic reconfigured his vehicle out of specifications. He straightened things and he hasn't complained of heat related issues under factory specs. Look for the post in reference or ask him. Use the proper oil (to which you have done), the right coolant application, stick to factory cooling specification and be relaxed in mind. The thermostat you have will still function for many months; for it is new. So, now worries in that "department." The vehicle should go a minimum of 15 months without a single repair while still maintaining dependability.

You won't find a Chinese Behr. It is made in Germany. As Ikenna referenced: source around the European part stores. You will find an 87degC thermostat; no doubt!. On another thought, a sales-person might be stocking thermostats in the Auto Section. You don't know who till you come across them. Kuntash bought his Behr in Nigeria. So, it isn't an impossibility. It shouldn't be pressing at the moment but you can look out for it. The thermostat currently installed will not fail anytime soon. Search at a convenient pace.



The technical information is not really much of a loss to you because you have acquainted yourself quite well and the information disclosed isn't that much; trivial. Some of the repetitions are on the gasoline door flap, door seal, engine oil cap and a few other places. You aren't missing much.

I actually bought this vehicle with this re engineering of the electrical fans/ac system, though, they never worked at the time of purchase; everything there was a mess; the fans were actually connected directly to the alternator to spin full time at cranking,i believe this was done by the first owners dedicated mechanic, because its their popular opinion here to cool the engine, an aspect i never liked at all.In fact, these are the reasons why i have been looking for a comprehensive manual to fully understand the architectural circuit of the wiring sequence of routing of this model so that i can fully organized things back properly.

Mechanics here will be laughing at me over such insignificant determination to reorganized things back to factory fittings, to them, 'it doesn't follow, here is not abroad. Mercedes Benz has a bad ac system and compressor, that could make you spend through your nose if you are to keep with them (http://www.edmunds.com/mercedes-benz/c-class/1994/reliability.html), that's why they do what they do'. I actually decline to all these hypothesis of theirs, though they're some element of truth as to the Benz compressor and maintenance cost of their ac system. I went ahead and overhaul this already faulty system of theirs and put mine in place with the way i understand electricals, because i don't know what to believe anymore than to play save. I remove their direct toggle on/off ac switching connection that was already faulty and then traced the power to the Mercedes Benz switching unit at the panel and connected it from there with my installed brand new Peugeot 504 compressor(504 compressor is known for their durability and ruggedness, that's why most vulcanisers here uses it for their business. Ikenna, your comment is welcome here) after having flushed out the old system thoroughly with Pag oil.It was from here that i had to replace one of the fans having assured my self from diagnose that it was bad(the mistake i did here was that i still use their old wires and relay, which i finally replaced as i described earlier. it 's from here that i connected the two fans along with the compressor via system of oem relays(from Nissan brand however) with the compressor to the factory fitted Mercedes Benz power source via the panel on the interim, pending when i shall have the full circuit diagram of this electrical fan system to aid me do the right factory fitting without messing up nor endanger something here

My engine doesn't run cold, if i decide not to use the ac, the two electrical fans wouldn't come up. In fact, the two electrical fans were not functioning until i reinstalled the ac system, and this ac system chilling is deadly, better off than that of my already envied Benz 190. You have explained the Mercedes Benz electrical fan system, but can you get me the circuit diagram or a vivid explanation of the wiring routing with this model? I will very much appreciate this gesture. thanks

Trac: You won't find a Chinese Behr. It is made in Germany.

You never can tell what Nigerians courtesy of Chinese can fake

Trac: I don't know a Japanese brand of thermostats but it is better than the Wahler you have. If you cannot find Behr, any other one is better than Wahler. This is what I was trying to convey. It is good as you have what is installed for the current time but to have faith in this shouldn't be. Everywhere sells Behr; for that's all they stock. I wonder why Nigerians are having a hard time finding one. The failure rate is just too high for those thermostat and MB stopped fitting their cars with those brands. Ask Kuntash where he got his. I believe he had remarks to the Wahler brands as well. Nevertheless, another thermostat of the same specification will do fine. It doesn't have to be Japanese but any European.

If finding a suitable thermostat is becoming difficult, getting in touch with car dealers in the Auto Section will not be a bad idea. It won't be a bad idea to get more than one.

Hello Trac, 'my people say a bird at hand is worth two in the bush'. My eyes fix on that temp gauge all the time i drive, one day i noticed my temp almost climb to a 100 degrees celcious through a slow and steady traffic, when i got home i try to observe what the problem could be only to discover that i have been driving with ac on without the two external fans spinning. i tried to check what the problem was but couldn't see anything wrong, so i decided to disconnect the fans, use my oem relay(i had a spare one in my boot that i bought to wire my Benz 190 compressor), traced the wire source to the fan and to the power supply; that same source carries my ac compressor to the switch. i had to rewire the fan with an oem relay in between it via the ac power source and connected the earth as well, so that once my ac switch is toggle on/off the 2 external fans comes up/stop immediately and vice versa...since then, i have not noticed such sudden rise in temperature anymore.

I ma still looking out for the Behr thermostat in particular since i wouldn't know of any of the Japanese ones, besides i dont want to take the risk of buying any inferior China fake product.I might as well still pick another wahler product too for a spare as it is very cheap over here while still hoping to see the Behr one day. I'll also check the auto car dealers section too for more understanding of other brand too. thanks

Trac: The C280 is the same manual as the C180 except for engine specification details, trims and various options. The differences are not much. The manuals were not in soft-copy but hard-copy. The technical details are very trivial and some found in the 280 manual will pass for the 180. The ones that do not apply will be obvious to you. The portion where it states "Technical" is where the differences are. I haven't seen a C180 before except on Nairaland. The C180 was for a limited market because I remembered in 1997, the Mercedes brochure that detailed the engineering of the C Class had the C200 as the lowest engine. This was the European marketing brochure with European specifications.

Yes they are the same but differs with the technical specs, and i want to trash some technical insignificant issues that is very obvious, i dont want to assume and take chances..i should be more careful. Something tells me that you can still get it for me.Or, can you point me to where in Nairaland you heard of it? or better still, the link?

Ikenna351: I plan to look for another Wahler themostart with 80+ degree, to keep as a spare.

I also want to use this opporunity to tell all Benz owners, check Peugeot shops as well when searching for Benz parts in Benz shops and you are not seeing them their. Because Peugeot and Benz use Bosch parts in all their cars. It may even be cheaper in Peugeot shops.

Ikenna.

Ikenna , mine reads 87 degrees for open temp, a wahler product too, it response and rises fast too but never exceeded nor even get to 100 degrees yet despite the hold up and heat conditions . Thanks for this info. From my observation, though i beg to differ, my car seems to perform best at that 87 degrees celcious

Recent pictures of my machine

ziccoit: @Trac, your post made me about to reconsider the thought of purchasing a mercedes benz- C180 W202 sport. Seems Nigeria is bereft of good MB handlers and if available not ubiquitous.

Ziccoit,i believe, there are facts that makes you like the benz? if you love something, there is always a work around it ..Just discover the ride first of all,then study it , you would be surprised at how cheap and easy it could be to maintain..You'll be happy that you know your ride with your finger tips. and you wont be afraid of its disappointing you on the road if you did your homework well, otherwise wise there'll be no need going for it. Anyways, that is my own opinion,i beg to differ cos i cant find myself settle for a ride i don't like.

abdulkadir: oh! So i thot. Sorry for misunderstandin you. Ikenna sometyms ago changed his but dont know whch brand a frend of his in d US recomended nd got it for him. He could help.
even tho d guy na LION!

Its ok Abdulkadir! Sometimes non facial respond can create mix feelings and misunderstanding , like as in the case of Smartchoice and Trac. If they saw their faces while responding, they would have been no need for all that names calling and so on.. i believe they must have been over it by now.

However, time was crucial for me, and that was my day out to go and get that problem solved. I just needed to trash it to its logical conclusion without overspending too on import or whatever. But needed to cruise that long awaited ride full time too to quench the hunger for it so that i could face other things

Trac: I was only cautioning him. The brand he bought is unreliable and undependable. Mercedes no longer uses them.

My recommendation is that you find another brand if you can't get Behr. A Japanese brand is also good (at least for the nature of work). Just don't use an American part.

Ok! thanks Trace, you didn't give me this part, the Japanese brand? Can you be a bit specific, atleast that will leave me with some options? I got that one to keep me going while still on the look for i supposed reliable but affordable one within my shore..Though, the dealer who gave me the 'whaler' really assured me of it, and its been very wonderful since then, though still on the look for Behr or the alternative Japanese model for a keep as spare should the whaler fail.

Trac: I don't have the manual for your car. Kuntash has a soft-copy (I believe).

Kuntash has given me the c280 which i very much appreciate. However, i was banging hope on you(as you stated, cos i believe you) for the c180 that is specific to my model. There are some detail issues(what others would consider insignificant) i need to resolve using it, things that are normally overlooked, but i want everything almost perfect if possible.. when i finish solving these items i'll let you know. I don't know if i can still bang on you for the w202 c180 manual?

talktimi: The mercedes c43 AMG

This must be a power machine, a thirsty one too

abdulkadir: i dont get it did Trac say anything wrong?

Nop! what makes u think that way? You thought i was angry? not at all ,emphasy here is pointed to my search frustration for the damn thing that so badly needed at the time