I have a 2000 E240 which generally drives OK, however when driving at motorway speeds or after hard acceleration when I come into traffic or slow down to leave motorway engine starts to misfire and little or almost no power is available. If the engine is then stopped and restarted everything is OK again.
Have replaced plugs and leads and MAF sensor, also CPS replaced about a year ago.
Thanks for that.
My wife ran the car on fresh air and tank sediment for the last two years...
So I'll check out fuel filters.
I'll move on to the K40 relay next, if not cured. I'll let you know how it goes...
Thanks again,
Tony.
Hey,Tony. Welcome aboard. Please click the user cp link and add your vehicle and location info to your profile, it's often useful.
If you haven't done the fuel filter before, start there, not too tough and DIY in the stickies.
There have been very few K40 problems on the 210, particularly the later years. The fact that this only happens on hard acceleration suggests at least to me that it's probably not the K40 relay.
However, at that age/mileage check the breather covers for seepage and the breather hoses and vacuum hoses for any cracks, breaks or brittleness; fix any you find. Don't forget the vacuum diaphragm on the EGR valve and the check valve on it if so equipped.
The "fix on restart" means that misfires were bad enough that the ECU shut down the cylinder, the restart resets them.
Changed fuel filter (very easy job), have run car for a couple of days now and everything seems to be OK again. In fact car is running better than it has done for ages.
Where is the K40 relay located
My E240 is only fireing on one side of the V6,Are there seperate relays or something I can test,check,would a failing o2 sensor cause a bank to close down?
Thank you matt
please help no one could really know what is the problem ! heelp
have a 2001 E240 which generally drives OK, however when driving at motorway speeds or after hard acceleration when I come into traffic or slow down to leave motorway engine starts to misfire and little or almost no power is available. If the engine is then stopped and restarted everything is OK again.
tried to remove exauset and it gave me same code problem
it shows misfiring of cylinder 6 and also left o2 sensor before twc !
HOW CAN I FIX THIS
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