E-Class (W211) 2003-2009

Passenger seat weight sensing...

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Old 10-27-2006, 05:41 PM
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Passenger seat weight sensing...

P-B-91.29/117 OCT06 – Replacement of Weight Sensing Seat (WSS) Sensors. If the passenger side weight sensing seat is not functioning correctly the cause could be the WSS sensor mounted to each corner of the seat frame. The seat frame assembly will no longer be replaced as an assembly since it is possible to replace each individual WSS sensor: Inner Front A011 820 41 10, Outer Front A011 820 40 10, Inner Rear A011 820 43 10, and Outer Rear A011 820 42 10.

Also, while we’re on the subject of seats if the front or rear seat belts do not roll up fully, the cause could be dirt deposits on the seat belt guide. Cleaning the belt guide and seat belt should restore proper function of the seat belt retraction. Note that this repair cannot be claimed under warranty as per P-B-91.40/130 OCT06 – Seat Belt Does Not Roll up Correctly.
Old 10-30-2006, 03:21 AM
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Originally Posted by konigstiger
P-B-91.29/117 OCT06 – Replacement of Weight Sensing Seat (WSS) Sensors. If the passenger side weight sensing seat is not functioning correctly the cause could be the WSS sensor mounted to each corner of the seat frame. The seat frame assembly will no longer be replaced as an assembly since it is possible to replace each individual WSS sensor: Inner Front A011 820 41 10, Outer Front A011 820 40 10, Inner Rear A011 820 43 10, and Outer Rear A011 820 42 10.

Also, while we’re on the subject of seats if the front or rear seat belts do not roll up fully, the cause could be dirt deposits on the seat belt guide. Cleaning the belt guide and seat belt should restore proper function of the seat belt retraction. Note that this repair cannot be claimed under warranty as per P-B-91.40/130 OCT06 – Seat Belt Does Not Roll up Correctly.
Not really related but has anyone figured out a way to use a diagnostic menu option to read the results of the weight sensor? Is this possible?
Old 07-25-2010, 01:14 AM
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Those sensors don't come cheap. The front ones will cost a few hundred. Ouch. What is the likeness that they both fail? Can someone send me the DTB? Let me know. I will PM you my email.

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