Knocking nidle speed

Asked by May 09, 2017 at 04:22 PM about the 2001 Mercedes-Benz CLK-Class CLK 320 Convertible

Question type: Maintenance & Repair

Replace all spark plugs. N one harness to plugs
...car is knocking like crazy. .in Park Neutral. N
while driving. ..never did that before these
mechanics touched it ..

1 Answer

275

bad plug, bad coil or bad wire from coil, or didn't connect all coils properly. Don't drive until fixed. Knocking from this is serious

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