Surveying Air Pump problems of C32
Thread Starter
Newbie
Joined: May 2004
Posts: 22
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From: Houston TX
2002 C32 AMG
Surveying Air Pump problems of C32
Just wanted to check out with everyone about their experience after the typical failure of the Seconday Air Injection Pump inthe C32. After researching older posts, I found out some people had the controller module replaced with the Air Injection Pump also. I just had the Air Injection pump replaced but not the module.
I know this is a typical problem with this car, so my question is:
Who has had this pump replaced but not the module and experienced no further problems.
or
Who has had this pump replaced, continued to have problems and had to eventually replace the damn module also.
Your opinions would be greatly appreciated.
Thanks
Torerito
I know this is a typical problem with this car, so my question is:
Who has had this pump replaced but not the module and experienced no further problems.
or
Who has had this pump replaced, continued to have problems and had to eventually replace the damn module also.
Your opinions would be greatly appreciated.
Thanks
Torerito
Member
Joined: Mar 2004
Posts: 126
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From: San Diego
2002 C32 AMG
A little over a month ago I had the air pump replaced in my car when it continued to run after the car was off. I had to disconnect it to get it to stop.
A month later it did the same thing. They replaced the pump again and said that a relay switch was stuck open so they replaced the switch.
It has only been about a week or so since then so we'll see if it dies on me again. If so, I'll tell them to check the module and replace that as well.
A month later it did the same thing. They replaced the pump again and said that a relay switch was stuck open so they replaced the switch.
It has only been about a week or so since then so we'll see if it dies on me again. If so, I'll tell them to check the module and replace that as well.
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Member
Joined: Mar 2004
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From: San Diego
2002 C32 AMG
Originally Posted by IdriveFast
how do you know if the air pump is damaged?
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Joined: Mar 2002
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When the relay fails it will usually kill the pump, and it does it quickly. It is actually the relay's fault. The relay overdrives the pump, and it can't handle continuous use for very long.
Dealers like to be pig-headed and replace them both after the pump had been murdered.
I believe that the original relay design has been fixed and the newer model is more robust.
The relay is about $15 and the pump is $150, dealers are not too clever on this one, maybe they like to inconvenience the customer and make a few $.
If mine hadn't already been done I would pay the $ out of pocket and replace it myself. 2 minutes and $15.
Dealers like to be pig-headed and replace them both after the pump had been murdered.
I believe that the original relay design has been fixed and the newer model is more robust.
The relay is about $15 and the pump is $150, dealers are not too clever on this one, maybe they like to inconvenience the customer and make a few $.
If mine hadn't already been done I would pay the $ out of pocket and replace it myself. 2 minutes and $15.
MBWorld Fanatic!
Joined: Feb 2005
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From: Bay Area SF
Silver 2002 C32, Silver 2006 CLK 350
I had this problem, I didnt know it was covered under warranty so I bought a new pump and relay.... When I have my car service I'm gonna put the old pump back to have them replace it.
Senior Member
Joined: Aug 2005
Posts: 329
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From: Phoenix, Az
02 C32R
Originally Posted by Peench
Mine stayed on when I turned off the car. The first time it did it, I thought there was a cesna airplane flying right above my car. I popped the hood, and it smelled like it was burning. It didn't turn off for about 15 mins after I turned off the car so I disconnected it.
