automatic trunk closer not working.

Doc47

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Your Mercedes
SL 300 2011
The trunk will open automatically but does not close when I press the swictch. I can close it by hand and the closer pulls it in when it is shut.
 

alexanderfoti

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Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
Does it close on the internal switch (push and hold)
 
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Doc47

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SL 300 2011
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Doesn't close with the trunk lid switch or the driver door switch. Was working ok then just stopped. I took the switch off the trunk and shorted the cables but still nothing.
 

alexanderfoti

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W221 S65 AMG - W204 C63 AMG + Various other MB's
Adaption fault, needs further diagosis with a computer really.
 
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Doc47

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Could it be a fuse or relay.
 

mioba

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W124/E200, W220/S320CDI, W205/C200, W251/R350CDI 4Matic
Get the codes read. Sounds like the anti pinch strips which are a switch in effect.
 
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Doc47

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Thank you Mioba.
 
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Doc47

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Just an update, and info for anyone else who may get the same problem. I discovered two yellow relays sitting on top of where the vacuum pump lives in the boot (trunk). Replaced the one to the rear of the car and it works again. Yippeee.
 

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