SL/R230 SRS Light - Seat Belt Buckle?

Jul 26, 2017 | 03:11 PM

Noir230

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Joined: Mar 2016

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1992 400E, 1997 SL500, 2007 SL55 AMG, 2016 E400

SRS Light - Seat Belt Buckle?

My 2007 SL55 has a SRS fault that my mechanic said is caused by the driver's seatbelt buckle. However, when I sit in the car, the seatbelt light is on until I buckle the seatbelt; then it goes off. Wouldn't that indicate that the buckle is good and not causing the SRS fault?

Thanks

Jul 26, 2017 | 03:26 PM

moretech

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Joined: Jul 2015

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From: amarillo texas

2003 sl 500

My '03 is different from yours but it would seem to be a normal thing that it would go out when buckled and on when unbuckled. Let's see what some other members say. I can hardly imagine a switch within the buckle assembly but who knows in these modern times.

moretech

Jul 26, 2017 | 03:31 PM

Noir230

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1992 400E, 1997 SL500, 2007 SL55 AMG, 2016 E400

Thanks for the reply. I should have been clearer. The switch is in the receptacle into which the belt tang is inserted.

Jul 26, 2017 | 04:45 PM

moretech

Senior Member

Joined: Jul 2015

Posts: 355

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From: amarillo texas

2003 sl 500

In that case your indy is likely correct. If you can remove it it might be repairable. If I ever own two SL's I think I'll stick to an '03 as I see these small changes in design factors (like I have a trans filler tube) make things more complex than what is needed to enjoy the car for we DIY'ers. I hope you get it all straightened out.

moretech

Jul 26, 2017 | 09:18 PM

Rudeney

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What's the error code? I doubt it has anything to do with the seat belt buckle, but it could be the pre-tensioner.

Jul 26, 2017 | 11:47 PM

Noir230

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1992 400E, 1997 SL500, 2007 SL55 AMG, 2016 E400

Thanks Rude,
I wasn't told what the code is and my scanner only reads engine codes.

Jul 27, 2017 | 05:09 PM

Rudeney

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I'd always get the specific codes whenever a tech scans your car. Or, do it yourself:

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Jul 27, 2017 | 07:03 PM

Rudeney

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Joined: Dec 2009

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NO LONGER ACTIVE

Well there you go! The MB-II model is nicer than the i980. Let us know what the codes are on the SRS.

Jul 28, 2017 | 12:31 PM

#10

Noir230

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Member

Joined: Mar 2016

Posts: 80

Likes: 12

1992 400E, 1997 SL500, 2007 SL55 AMG, 2016 E400

Last night I got a 9183 code meaning that the resistance in the r12 squib circuit is too high. Upon testing the seat belts, I got R68/3 and R68/4 codes for the driver's seat belt indicating it was not connected. I still don't understand how it can be disconnected if it turns the seat belt indicator off.