Mercedes C200 not firing cilinder 2 and 3..

[florinyes]

Hello guys

next door garage call me to see this one..i know common on this but anyone got a fix for this ecu's? Bosh 0261200614
Willing to buy you the beers if fix available.

Cheers

[GolfmkI]

Sometimes it is easy to repair:

f car is 4 cilinders has inside ecu 2 transistors if car has 6 cilinders, ecu has inside 3 transistor. Locate wich transistor is defective and change it, sometimes I change some components around when transistor has burned.

I must say is common problem in VDO ecus in mercedes, but have not repaired yet a Bosch one with this problem.

For locate with transistor is, only must Know pinout of ecu and a simple multimeter will do the rest.

[Fec001]

I have the same problem with same ECU. Any info about opening ECU easier?
What is the "name" of this ECU? MEx.x??? or?

[mercis]

PMS,no easy open

[Flash2016]

Hi, which Transitor Typ is in these ECU?Bosch PMS.jpg

[abdulsattar]

Hi mate, let me give you my 2 cents:
this ecu is bulletproof and rarely defective. its either the ignition coil itself, firing 2+3 or its the wiring harness.
check the entire wiring harness from ecu over intake manifold/injectors to ignition coils for rotten cable insulations.
youll find your problem right there