hey.i have a 1992 1.8 petrol mercedes 190E. the problem started about 2
weeks ago when my car cut out when driving.i lost all power, including
the power steering.i thought the problem could have been caused by the
engine not gettin any spark to ignite the fuel, so i started with the
cheapest option and changed the spark plugs.that didnt work so i spent
about a week trying to find a distributor to fit my model, i changed it
and still no luck.i think it could be the coil and i have been told
that the 190e has had many fuel or spark problems.i went to the
mechanic who gave me the distributor and he pointed out a black pannel
under the bonnet which is situated above the left wheel arch.supposedly
190E's have to have these changed reguarly.i think it's sum type of
ecu, due to the fact that it has about 3 or 4 wire attached to it.

any ideas would be very helfull.hope to hear from use soon.cheers!!!!