S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Comand seat operations inoperative

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Old 10-11-2013, 07:04 PM
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2007 CL550
Comand seat operations inoperative

Comand seat controls are inoperative for both front seats. If I change any value, it immediately returns to the default setting. Massage function also not working. Lumbar controls as well as seat with controls return immediately to default position.

Could this be a blown fuse? If so, where is it located?
Old 10-15-2013, 03:21 PM
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2007 CL550
Diagnosis-- Driver seat control unit has failed. Cost to replace is $1100, but dealer has verified that it is covered by my aftermarket extended warranty which expires next month.

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