it hardly starts in the morning. the exhaust smells like roasted oil. we have changed air flow meter temperature sensor actuator and still same.I want to change the exhaust train since the catalyst is broken inside. but ive spent heavily. when it wants to start it drops its rev and goes off. when you press the trottle pedal you hear it sucking air and the car goes off. Please what do i do.The mechanics seem not to know to do

Everyone saying that mercedez is awful to fix, cause so expensive. Anyone experience this problem with their car.

How do I fix this problem?

I have a 1994 Mercedes Benz c280. Sometimes engine won't turn over. Is this electrical?

Can my head gaskets be replaced from another car or do they have to be rebuilt? ?

When I am at a stop, the car wants to stall and the lights dim. The battery light flashes on and off. Brand new battery 2 weeks ago after the mechanic ASSURED me it was not the alternator.

the lock cylinder is locked up,it wont turn

I have tried reconnecting and using key to lock and unlock doors and have tried unlocking and locking trunk. The alarm will not go off and allow me to start car.

undersids is covered with oil ,smokes after i turn engine off.l-2.8 with 177985 miles.where is the pcv valve located at on this engine?

Some time my Air Condition Control goes off went ,I am driving the it blows is not to hot but is not cold how suppost to be.I will like to fix that Thanaks.

please gine me details

the idle fluctuates up and down and some times it will be steady but mostly it keeps fluctuating,any advise would be appreciated ,what are the possible causes.