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Discussion Starter #1
My check engine light went off this morning, and my scanner yielded :
P0410: Secondary Air Injection Malfunction

I checked all the air line from the supercharger to the header. No leaks whatsoever. No major mods/works done to the intake/supercharger within the last 3 months. Now the car seems to run on the rich side since the front O2S cannot read properly. Tomorrow I am going to take off the air line to see if it's plugged up (very unlikely).

Have anyone experienced this? Any hints that save me time is well appreciated! Thanks

CAR = 00 SLK 230K.
 

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dirty MAF could be your problem.

Here there are istructions how to dismount your MAF
and clean it.

http://www.mbslk.com/files/artikel/reinigunglmm.pdf

How old is your car ? how many miles on it?
Hope ths help for you.
 

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Discussion Starter #3
Bad MAF can set off Air pump code? I cannot see how, but I ll take off the sensor to clean it today. Or even better, I ll replace it on Monday.

Thanks!

PS My car is a 2000 SLK 230K Spec Ed with 48k miles.
 

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2006 SLK-55 AMG
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These codes are sometimes caused by dirty electrical connections on the sensors rather than actual malfunctions of the pump itself.
 

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Discussion Starter #6
M111 kompressor - doesn't have air pump. It withdraws the air from the supercharger. I just got new MAF, and new air tubes to the header. We'll see if this will solve it.
 
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