gassed up
Senior Member
- Joined
- Jul 2, 2006
- Messages
- 273
- Reaction score
- 130
- Location
- liverpool
- Your Mercedes
- 2011 C207 350CDI;2010 C207 350CDI sport;2010 SLK300;2004 C209 320;2000 C208 230K;
Hi Guys, the replacement pump on the SL500 has started knocking. Interesting thing is the knock is intermittent. Sometimes a real rattle, sometimes silent. Anybody any experience of this, is it trapped air?