C55 Secondary Air Pump P2002 P0410
Thread Starter
Junior Member
Joined: Mar 2009
Posts: 36
Likes: 2
2006 C55 AMG
C55 Secondary Air Pump P2002 P0410
my Check engine light comes on.
I changed the secondary air pump with a new unit and new relay. Erased the code. And it came back on.
Any idea what else’s it could be ?
Senior Member
Joined: Oct 2014
Posts: 254
Likes: 34
From: Oregon
2006 ML350, 2005 C55, 2004 E55
Probably have a leak somewhere or the check valve is clogged and not able to operate properly. Check all the hoses for age or cracks and inspect the check valve.
https://www.pelicanparts.com/techart...eck_Valves.htm
https://www.pelicanparts.com/techart...eck_Valves.htm
