ytri

Hi guys! Not an SLK, but a CLK230, hoping yous may be able to help me out with it.

Recently, I've had a problem with the car (CLK230) stuttering under acceleration. Sometimes it just keeps stuttering, and the revs wont rise, so I back off for a second, other times it stutters for a second, and then accelerates away. I've had this problem before, but only when its been extremely warm outside. The last 2 days, after stopping, the car hasn't started for a little while, and then last night, the car actually died while driving, and then wouldn't start for an hour or so. Any ideas? Could it be the fuel pump?

bairdrl

I had a similar problem and it was the circut board that controls the fuel system & ignition. Hair line cracks due the use of lead free soilder by Benz on these boards is a known issue. If this is the cause, either replace board or resoilder.

Search this section for additonal info on issue - it is where I found the info and how to repair it.

wolf!

there was also a matter of some defective fuel filters out there.

mjcother

Bad MAF(disconnect to test)
Loose/bad spark plug(check)
K40 relay(inspect and replace/solder if needed)
Vacuum leak(check all lines, including behind cam cover and engine, and under battery tray), Flapper valve(replace... $$$)