BenzWorld Junior Member
Date registered: Feb 2010
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190e 2.3 - bogs often, always at WOT
I have a '92 190e
2.3 with an auto
First off, when I disconnect and reconnect the battery, the idle is rough for a while, which I assume is normal. But for a few days after, the car will often lose all power after 1-5 minutes of driving, to the point where it will struggle to go 20mph. This spell then clears up after 2 minutes and then the car runs "normally." After a few days of doing this, it return to normal.
Now, running "normally" for this car means the gas pedal is what I like to call a "random acceleration button." Sometimes when I press it down, I get what I expect is the right amount of power. Sometimes not. Minor throttle input usually works out OK, but mid-range is a crap shoot, sometimes bogs a bit then starts pulling. There is a spot about 80-90% of the way down, just before the kickdown, where the car loses all power, i mean it actually slows down. Flooring it at speed results in a downshift and deceleration...
So far, Ive Seafoamed, changed spark plugs, cleaned the idle-air control, and "fixed" the cat.
Its certainly better than when I got it, but still not right.