E60 Electrical Gremlins
#1
Members
Thread Starter
Join Date: Apr 2008
Location: Charleston, SC
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2007 525i Blue/Tan
E60 Electrical Gremlins
My 2007 525i has had number of false electrical faults over the past year.
It started with "left taillight failure", occasionally "right taillight failure", now i get "TPM malfunction" fairly consistently.
I have replaced all the bulbs and both of the bulbholders. The lights are fine and I doubt that there is a problem with the TPM system.
Could this be the battery? It reads 12.52V with the car off after a couple of hours.
Could it be a ground fault? I disconnected the ground wire bundles from the frame and sprayed contact cleaner on the area to get a better connection to ground.
Thoughts? Ideas?
It started with "left taillight failure", occasionally "right taillight failure", now i get "TPM malfunction" fairly consistently.
I have replaced all the bulbs and both of the bulbholders. The lights are fine and I doubt that there is a problem with the TPM system.
Could this be the battery? It reads 12.52V with the car off after a couple of hours.
Could it be a ground fault? I disconnected the ground wire bundles from the frame and sprayed contact cleaner on the area to get a better connection to ground.
Thoughts? Ideas?
#4
Members
Senior Members
Could be your battery. You have to measure system voltage while you are getting the error.
Also, does your VIN fall into the recall period for rear taillight grounding issue (5-series production from Mar 1, 2007 through December 31, 2009)?
Also, does your VIN fall into the recall period for rear taillight grounding issue (5-series production from Mar 1, 2007 through December 31, 2009)?
#5
Members
Senior Members
Good point on the recall. Also, the recall on the battery grounding lug, which is also in the trunk.
#6
Members
Thread Starter
Join Date: Apr 2008
Location: Charleston, SC
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2007 525i Blue/Tan
It turns out that this "Left Taillight Malfunction" was actually the Left Front Angel Eye. Problem solved.
Still don't know about the TPM.
Still don't know about the TPM.
#7
New Members
When the automatic lights come on or off, I suddenly get the malfunction and it doesn't go away.
I'll try replacing all of the parking lights & high beams/daytimes and see if it persists.
Thread
Thread Starter
Forum
Replies
Last Post
Stormcrow
E60, E61 Parts, Accessories and Mods
8
12-01-2019 02:09 AM