Electric Mirror Fault

Need technical Q/A then you're in the right place

Moderator: martauto

User avatar
Carmo13
E30 Zone Regular
E30 Zone Regular
Posts: 269
Joined: Fri Sep 27, 2013 11:00 pm
Location: Norwich

Post Mon May 19, 2014 8:47 pm

Hi,

My car has been sat up over winter, the electric mirrors worked prior to this. Now my passenger side mirror doesn't move but the drivers side does.

Anything spring to mind?
User avatar
BenHar
E30 Zone Addict
E30 Zone Addict
Posts: 3089
Joined: Sun Jul 11, 2010 11:00 pm
Location: Reigate, Surrey

Post Tue May 20, 2014 3:47 pm

Connector in the NS A pillar.

Ben
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49360
Joined: Mon Jan 10, 2005 11:00 pm

Post Tue May 20, 2014 7:38 pm

Switch isn't above suspicion, and BOTH A pillar connectors are suspect - NS mirror signal passes through both.
Does the mirror click if you try to move it up and down?
User avatar
Carmo13
E30 Zone Regular
E30 Zone Regular
Posts: 269
Joined: Fri Sep 27, 2013 11:00 pm
Location: Norwich

Post Thu May 22, 2014 8:38 am

Hi guys,

Thanks for the ideas. Both connectors are good and yes, the n/s mirror does click if I try to move it up and down.

Does this mean the motor has failed?
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49360
Joined: Mon Jan 10, 2005 11:00 pm

Post Thu May 22, 2014 9:25 am

Use a 12 volt bulb (NOT a meter) to check that there is power at the black wire at the mirror with the ignition on.
Pull the black wire and the brown wire out of the back of the motor assembly (just pushes in), and connect those wires to your bulb.
Bulb should light.