[W126 Coupe] Seat belt presenter + motor operation

["Håland, Åge"]

Hi Dick.
Thank you for your advice an . 
 
I opened the side panel and can see the 2 plastic gears running smoothly all the time; is the limit switch dependant of the plastic gears.
What confuse me in addition is that the extender motor is running even the ignition is off and the fuse for extender motor is out.
As a none technical person I can not understand this.
 
If you have any additional information / ideas I wold have appreciate that very much.
 
Have a nice day.
 
Regars Aage


________________________________

	Fra: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com] På vegne av Dick Spellman
	Sendt: 1. september 2010 19:19
	Til: Mercedes Coupes Mailing Lists
	Emne: Re: [W126 Coupe] Seat belt presenter + motor operation
	
	
	Hi Asge,
	
	This sounds like a stripped gear on the extender arm motor (a common problem).  There is a limit switch that stops the motor when the arm retracts or extends to it's limits presuming the gears are okay.
	
	From the MB factory you have a nylon gear on the extender motor.  Go to this link for a detailed write-up done by Satish (this list's founder) for more info on how to repair.   <http://www.mbcoupes.com/repairarticles/seatbeltpresenter/seatbeltpresenter.htm>
	
	I made the repair he details in 2000 or 2001 on both arms using the metal gear originally built by Autolux.  They continue to work to this day.  I think George Murphy at Performance Analysis in Tennesee, USA  now makes or resells these aluminum replacement gears.
	
	Regards,
	Dick
	
	
	On Wed, Sep 1, 2010 at 2:23 AM, "Håland, Åge" <aage.haaland at helse-vest-ikt.no> wrote:
	

		Hello SEC-fans.
		 
		I need some advice and help for my MB 420 SEC 1986 concerning the motor/regulation for the Seat Belt Presenter. Suddenly the seat belt motor started running all the time even the ignition is off and even the fuse is out, that means running until the battery is flat. I opened the side panel and and removed the el. plug from the motor connected to a black box/regulation/operation as a first aid.  Questions: Is the problem the motor in itself or the black box, is there any fuse, can the box be fixed. I'm seeking the valuable experience out in the mbcoupes world.
		 
		I would appreciate very much your advice.
		 
		Regards
		Aage Haaland
		Norway

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