[Fast960]

Has anyone done this on an SL r129 model? My srs code is that pesky passenger seat and I'm gonna tackle it but not sure of the removal process, are the bolts in the rails and 4 in rear with 2 in front? ...

 

[Fast960]

to remove the r129 passenger seat cushion the entire seat does NOT have to come out, just the seat cushion ..... there are 2 bolts on the front of the seat horizonally ..... unbolt with 10m socket and seat pad comes up exposing electronics underneath .... be careful for at the rear of the cushion is the cable from the sensor that extends to the rear of the seat where it connects to the plug .... you may have to remove the rear plastic to get to the plug, its two phillip screws at the fold of the seat ....

 

[Fast960]

May the Gods of Shade Tree Mechanics bless and keep you.:wink

It has been over 50 years since I had a seat out, and there was no electronics then. I was apprehensive, but I am retired and just cannot afford MB's labor rates. The detailed instructions and pictures made this doable.

I was having an intermittent problem with the SRS lamp so I was sure there was a broken wire - someplace.

It took a while to get the seat out and exposed on a bench but it went well from there. I stripped the insulation of the 3 wire connector close to the end back at the seat. I then used a multimeter with a sewing common pin as a probe to poke through each wire's insulation doing a continuity test from there to the plug. All was OK until I pulled on each wire. The brown lead came out. Fortunately, the break was far enough out from the seat that I could splice it. A bit of Bench Tech work - stripping, soldering, shrink tube and it was done. SRS lamp now functions properly.

The break was right where the cable was tightly tie-wrapped to a passthrough on the seat steelworks. Definitely poor Manufacturing Engineering, the cable should have been able to flex freely. Note, this was a 2001 and the wires were stranded, not solid core.

Once again, Benzworld forum has saved me money.

Thanks,

Dave

Good Job, I had to buy the cushion