TheHartmann

Citan rough idling and check engine light

My Mercedes Citan is running rough especially at idle and the check engine light is on. It sometimes stalls and jerks when accelerating. I have a 2014 Citan with a gasoline engine. I've checked the obvious stuff but suspect a defective ignition coil. Vehicle diagnostics indicates a misfire. Could a faulty cable or plug connection be the culprit? Is it related to the spark plug or ignition system?

4 comment(s)

I encountered similar symptoms in my Citan. Confirm that the ignition coil is indeed defective. A faulty connection to the ignition coil could certainly be the issue. Has the ignition system been checked?

The ignition system was checked and the fault code pointed to the ignition coil. Before replacing it, I wanted to rule out a simple cable or connector issue. Did yours also misfire?

The misfire was indeed present. Given the diagnostic code and your symptoms, replacing the ignition coil is likely the correct approach. Consider consulting a workshop for confirmation.

It was a defective ignition coil. New ignition coil installed 95€ including checking the cable and plug connection. Runs smoothly now. Thanks for your help!

Join the discussion now: