c220 1995 (w202) Problem

[mrcoolcurrent]

I have a c220 1995 (w202) after starting it and letting the engine idle for some minutes tit would become unstable and wont move fast.

The technician said 2 plugs (no 2 & no 3) are not working. I have change the plug cables but still its not good.

He said I have to change the car's brain box, Inet cable and airflow meter.

I am not sure he know whats wrong.

Please does anyone here experienced similar problem or have an idea whats wrong with my car.



Thank you.

 

[bigasotonuk]

Hi,
Welcome to the the forum,
If the 220 engine is the same as my 230 you only have 2 plug leads the other 2 cylinders get there spark directly from the coil packs via a plug cap fitted to the underside of each coil pack, were these caps replaced as in my experience these go before the leads pack up.
I bought a complete lead set up which included 2 leads and 2 plug caps.
Coil packs can be quite a common fault. Swap the coil packs round and see if the same cylinders are misfiring, if they change to the other 2 cylinders its the coil pack.
If not you,ll need to be looking at a possible wiring loom fault or E.C.U.
I hope this has helped.

 

[bigasotonuk]

Hi,
Similar problem on active thread for your information.

http://forums.mercedesclub.org.uk/showthread.php?t=36860