Thanks to all that answered,
It looks like there is no specific answer to my problem i guess.
I went to my beloved MB dealer and the parts guy is a good bud so i asked him what he thinks on this issue. First thing he said is not to touch the O2 sensor until the light on the dash goes on. Mine isnt on. Second he said trying to adjust the CIS air meter to distribute less fuel/air.
One of you guys said that the fuel distributor can leak?
where exactly is that thing located and how is it connected to the
intake manifold when gas goes trough separate injectors for each cylinder??
By the way my spark plugs are bosch platinum .. replaced 30 000km ago should i consider replacing??
Here are some pics
http://www.geocities.com/tuningbyamg/index.html