Knocking on cold start?
Thread Starter
Junior Member
Joined: Sep 2011
Posts: 22
Likes: 0
2007 S550 Designo Launch Edition
Knocking on cold start?
Ok, I have had the Benz for a few weeks now and I have noticed, more so on a cold start, that the engine makes a muffled knocking noise for 1-2 seconds after starting and it suddenly stops. This normal?
