[W126 Coupe] Update on Battery Drain

[Vance Rowley]

Markus,

 I think I have already reached the point of losing my mind :-) Yes, I think you have hit the nail on the head. I will check out the factory alarm at the footwell. I must admit with the dealer telling me the factory alarm was disconnected and the relays in the fuse box missing for the alarm system, I didn't go to the trouble of checking out the connections behind the passenger foot well. I will check it out. As for the fuses, as you say I haven't got much else to lose, although from the tests I have done so far, it looks like it's something connected on the battery side of the fuses somewhere. The 1amp fuses I put in place of all the "hot at all times" fuses should have blown one of them, as the intermittent current draw is as high as 6amps. Again thanks for the input. I will let you know of any findings.

Cheers,
Vance.
  ----- Original Message ----- 
  From: Markus Meyer 
  To: vance.rowley at tiscali.co.uk ; mbcoupes at mbcoupes.com 
  Sent: Tuesday, February 21, 2006 2:06 AM
  Subject: Re: [W126 Coupe] Update on Battery Drain


        Vance,

        The relays in the fuse box, or under the passenger footwell? I thought that's where the factory alarm stuff was situated and that's what you had to disconnect. I wonder what they did when they put that aftermarket alarm in. Might be worth a look to see what's under the passenger mat area. I say that because of the "flasher" thing I thought I remember you describing happening.

        I guess if it was me, and I didn't know what else to do at this point, I'd pull one fuse each night and see what happened. If the drain was still there, I'd cross it off and keep going. Might take a while, for sure, but with no other possibilities, what have you got to lose (except your mind after a while?!!!).

        Cheers.
        Markus


        --- On Mon 02/20, Vance Rowley < vance.rowley at tiscali.co.uk > wrote:


          From: Vance Rowley [mailto: vance.rowley at tiscali.co.uk]
          To: mbcoupes at mbcoupes.com
          Date: Tue, 21 Feb 2006 01:44:41 -0000
          Subject: Re: [W126 Coupe] Update on Battery Drain

          Hi Markus,

          Apparently the factory alarm was disconnected when the Meta Alarm/immobilizer was installed. I spoke with the dealer I purchased the car from who told this and the relays for the factory alarm that are normally in the fuse box are not there. But as I mentioned, this problem hasn't always been there, it just took a very long time to know there was a problem at all because I used to drive it every day. When doing this, you wouldn't even notice there was a problem. I am thinking along the lines of the battery backup for the seatbelt tensioner system and airbags now. Does that make any sense?

          Cheers,

          Vance.

            ----- Original Message ----- 

            From: Markus Meyer 

            To: vance.rowley at tiscali.co.uk ; mbcoupes at mbcoupes.com 

            Sent: Tuesday, February 21, 2006 1:32 AM

            Subject: RE: [W126 Coupe] Update on Battery Drain


                  Vance,

                  Maybe I missed it in your many posts, but what happened when you disconnected the factory alarm as suggested by several folks as a possible culprit?

                  Markus 



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