Seat adjustment motors

Post in this forum for topics relating to the interior.

Moderators: GRNSHRK, ron, bfons

Post Reply
tmoretta
Posts: 193
Joined: Mon Feb 06, 2017 8:30 pm
Location: Connecticut, U.S.A.

Seat adjustment motors

Post by tmoretta »

The driver's seat adjustments in my M6 work only inconsistently. Anyone know of someone who rebuilds the electrical motors?
plip1953
Posts: 400
Joined: Mon Aug 13, 2018 4:15 pm
Location: Leeds

Re: Seat adjustment motors

Post by plip1953 »

tmoretta wrote: Sat Apr 18, 2020 3:08 pm The driver's seat adjustments in my M6 work only inconsistently. Anyone know of someone who rebuilds the electrical motors?
As an alternative, have you looked on the internet for secondhand? And are you sure it's motor related or could it be faulty seat controls.
Phil
__________________________

1988 Highline 635 CSi
tmoretta
Posts: 193
Joined: Mon Feb 06, 2017 8:30 pm
Location: Connecticut, U.S.A.

Re: Seat adjustment motors

Post by tmoretta »

I do believe it is motor related, as when I push the buttons, I can hear clicking from beneath the seat.
User avatar
86_6series
Platinum Member
Platinum Member
Posts: 1069
Joined: Mon Apr 02, 2007 10:08 pm
Location: West Nyack, NY

Re: Seat adjustment motors

Post by 86_6series »

Could be a relay in the memory box. Pages 5200-0 thru 5200 A-5

http://wedophones.com/Manuals/BMW/1987% ... Manual.pdf


I picked 1987 M6 from the list.

http://wedophones.com/BMWManualsLead.htm
86-635CSi
96-MB C220 SOLD
98-740i
71-Continental MK3
tmoretta
Posts: 193
Joined: Mon Feb 06, 2017 8:30 pm
Location: Connecticut, U.S.A.

Re: Seat adjustment motors

Post by tmoretta »

Great info. Thanks so much.
plip1953
Posts: 400
Joined: Mon Aug 13, 2018 4:15 pm
Location: Leeds

Re: Seat adjustment motors

Post by plip1953 »

tmoretta wrote: Sun Apr 19, 2020 9:06 pm I do believe it is motor related, as when I push the buttons, I can hear clicking from beneath the seat.
So the motor(s) is (are) running, but not moving the seat? The head rest is moved via a flexi cable and that can be a problem even when there's nothing wrong with the motor, but I thought most if not all of the other elements were direct drive.
Phil
__________________________

1988 Highline 635 CSi
tmoretta
Posts: 193
Joined: Mon Feb 06, 2017 8:30 pm
Location: Connecticut, U.S.A.

Re: Seat adjustment motors

Post by tmoretta »

No - one or two of the motors only click, are not running. I think the memory switch is involved.
plip1953
Posts: 400
Joined: Mon Aug 13, 2018 4:15 pm
Location: Leeds

Re: Seat adjustment motors

Post by plip1953 »

tmoretta wrote: Tue Apr 21, 2020 1:27 pm No - one or two of the motors only click, are not running. I think the memory switch is involved.
For what it's worth I get clicking sounds, but that's only when the requested action is already at the full extent of its travel.
Phil
__________________________

1988 Highline 635 CSi
tmoretta
Posts: 193
Joined: Mon Feb 06, 2017 8:30 pm
Location: Connecticut, U.S.A.

Re: Seat adjustment motors

Post by tmoretta »

Thanks. I need to do more diag.
KINGJOHN808
Posts: 127
Joined: Sat Feb 16, 2019 2:27 am
Location: Ewa Kai

Re: Seat adjustment motors

Post by KINGJOHN808 »

I had a similar issue with my 633 passenger seat. Seats would move vertically but not horizontally. After removing the seat from the motors to test (motors worked fine) found that the rails that that seat travels on had worn a groove into the rail. The weight of the seat alone created such a drag that it kept the seat from moving.

I couldn’t repair or locate a working seat rail/track so I went with manual seats. I did keep all motors from the seats though. Let me know if you still need a set or two.
Ewa Kai, Hawai’i
1984 633CSi
1983 633CSi (wreckers)

“Aloha and have a great day!”
Post Reply