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  #1  
Old 10-20-2007, 01:26 AM
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Join Date: Aug 2005
Posts: 39
W202 SRS light and battery disconnect limp mode

hello!

lately my C180's speedo needle has been sticking. today i pulled out the cluster and found that the paint on the little resting pin turned to goo, which was causing the needle to stick. that is fixed now, but when i plugged the cluster back in, the SRS light came on!

i disconnected the battery for half an hour or so in an attempt to make it go away, but when i reconnected the battery, not only was the SRS light still on, but it seemed to be in some sort of "limp mode" - unable to rev past 4000!

what have i done? is there some way i can reset the car, or will it need to go to the dealer? i hate this car. i wish i had stuck to my W126.


thanks in advance,
kaydee

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  #2  
Old 10-21-2007, 02:01 AM
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Join Date: Aug 2005
Posts: 39
update on my situation.

well, i returned to the car and attempted to start it. its running beautifully!

when i switch the ignition on, the SRS light stays on for about 5 seconds, switches off for one, i hear a click from the passenger foot well, and comes back on.

i disconnected the cluster and plugged it back in and started the car. the light didn't come on at all. i was quite chuffed, switched the car off, and on again, and it came back on.

is there a way i can reset the light myself?

i hate this car. i want my old W126


kaydee
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  #3  
Old 10-21-2007, 12:11 PM
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Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
Posts: 4,874
SRS module is going to need to be read by SDS.

The engine is rev limited to 4k RPM in P and N.
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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
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  #4  
Old 10-21-2007, 05:33 PM
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Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160
As TMAllison said, you turned the ignition key to the " ON " position, while you had the airbag disconnected.
Time to visit the dealer, to re-set the SRS light.

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2007 C 230 Sport.
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