Mercedes rough idle at stop. When I pull up to a stop light, the idle see...

Mercedes rough idle at stop. When I pull up to a stop light, the idle seems low, and a slight vibration occurs (meaning, it's vibrating 8 comments 󱎖 What causes rough idle in a Mercedes E320 when in drive? Hey guys, i have the e320 and i have rough idle. Nov 29, 2025 · Experiencing a rough idle in your Mercedes? Learn how to diagnose engine shaking, cold start misfires, and camshaft timing issues and how to fix them. Rough idling with the M156 engine In addition to rough idling, PCV problems with AMG models using the M156 engine are also prone to other ssues, one of which is squealing noises at idle. Mar 17, 2025 · A “rough” idle is just like a normal idling engine speed, except it is irregular and not as smooth as we’ve become accustomed to with our modern, smooth engines. Check this first - I've read so many threads online regarding a problem where the car intermittently idles rough when stopped and in gear. Dec 6, 2009 · C230 engine running rough & stalling at idle Jump to Latest 96K views 17 replies 16 participants last post by markmorin Dec 8, 2013 J Apr 18, 2010 · I have a 1994 sl500 that starts and runs great untill it warms up. Reinstalled and the CEL went out for a bit but it was still idling rough and soon enough I once again got the old "Misfiring of cylinder 2 : Worsening of exhaust emission values after engine start (P0302)" which later turned into the Cylinder 2 Misfire Damages. If the engine idles rough, this means you have a problem. Mercedes C230 w203 idle surging remove MAF plug stops shaking, engine must be warm before removing Mercedes electronic throttle body how to reset idle . I went to Mercedes and they said that without a check engine light, the only thing they can suggest is to leave the car with them for a few days for them to drive it around and try to pin point the problem. qvlg oqhdxe seigi vue ykppymf tqmpfvx dfkgrn umxc gsc onh