battery is dying. airmatic is the problem.
Thread Starter
Senior Member
Joined: Oct 2010
Posts: 258
Likes: 20
From: Andover, MA
2007 e63 estate, 1998 ITB golf, ITE scirocco (sold to a collector in Japan)
battery is dying. airmatic is the problem.
hi. i did some work on the car (replacing inner tie rods) and since then, the car drains the battery at a high rate (70mA or so total load (i put an ammeter in line with ground of the battery))--the battery dies over two days. i've tested the fuses by looking at voltage drop across the fuses that are located next to the steering wheel and all of the load (that is significant) is from weight sensing or airmatic. i do not know what to do after testing. the car suspension worked ok before then. the suspension works well now, too. however, even after sitting alone by herself, the car is using a lot of power for the three circuits (or those three fuses) without any external influence. this has destroyed the original battery (which lasted from 2007 until now) and is doing it to the replacement. i am lost at this point. is it the battery control module? or some airmatic control module? does anyone know? i am not particularly wealthy and do not want to go to a dealer.
Last edited by sciroccor; Apr 4, 2021 at 06:22 PM.
MBWorld Fanatic!
Joined: Apr 2009
Posts: 6,020
Likes: 532
From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
My 07 E63, battery died as well, and I'm thinking the issue was related to the airmatic as well. Because, I couldn't think of what else could be draining my battery. When everything inside the car was off.
As my car has been sagging in the rear, so I replaced my 14 yr old rear air bags, along with it's worn out air compressor, air distribution block, a burnt air compressor wiring harness and fuse.
That seemed to alleviate my battery issue drainage issue. As the suspension stayed level and not requiring the air compressor to kick on and level the suspension.
As my car has been sagging in the rear, so I replaced my 14 yr old rear air bags, along with it's worn out air compressor, air distribution block, a burnt air compressor wiring harness and fuse.
That seemed to alleviate my battery issue drainage issue. As the suspension stayed level and not requiring the air compressor to kick on and level the suspension.
