Good day,

I drive class benz otherwise known as W03. Till now, I haven't gotten any issue with it. Recently, my gear oil sump hit a pothole and was leaking, this made me changed the gear oil. Based on recommendation, I changed to recommended MB Gear Oil (Star), each litre sold @ 5k or thereabout.

However, I recently notice that the gear will hardly select past gear 2 after a long driving. What I observe:

1) This only occur when I drive too long on a bad road or hold-up that required gear 1 only. So, upon hitting better road, the revs will be very high (more than 3000) and will hardly select gear 2 and won't exceed this. Pls note that, normally my gear selects @ max of 2500 rpm

2) The gear select perfectly well (all gears) in the morning till now, when the gear oil is cold.

3) If am driving on highway, let's say from Ibadan to Akure, the gear will still select well since gear 1 is less used.

4) The same star oil being used presently was the one I used before the gear oil sump hit the stone and started leaking

What can I do my people?