Brake Light Problems of BMW 530

I purchased the vehicle from someone. The passenger restraint system malfunction signal on computer has come on, the brake pad malfunction warning has also come on, along with the left brake light malfunction! I have tried to have BMW honor the warranty on the problem with the passenger restraint, to no avail! I have asked the service advisor several times, they are saying I needed to pay to have this done, although it was still under the terms of 10 year rule! the light and brakes are fine, however I can't figure out why the computer says otherwise, unless there are some undetermined problems. The brakes and sensor have been replaced! the light is working properly, yet the computers reading differently. I have asked on several different occasions about the passenger restraint, the female sales advisor states I have to pay for this!.

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Failures of multiple wires/electrical components in the tailgate/rear window wiring harnesses. Search for BMW e61 tailgate wiring problems. The failures are caused by a poor design where the wires entering the hinge guides (4) for the glass and tailgate are repeatedly flexed at a sharp angle until the insulation, then the copper wire breaks. Safety issues - possible electrical short circuit leading to fires (highest load is for rear defroster); lighting failures (rear high brake light, license plate lamps and others); reduced visibility due to loss of wiper/washer/defroster; rear glass latch opening while underway, possibly resulting in loss of cargo or ingress of exhaust fumes. This is not an easily repaired problem and has cost over $2000 so far. I'm worried about driving this car as it is the main transportation for my children and their friends. I discovered it when the remote lock/unlock using the key fobs failed, the trunk inoperable and uncloseable, the radio stopped working, the lights in the rear of the car stayed on permanently and I had to drive home one night with the trunk wide open because the wiring had stopped working and it could not be closed. As I investigated I found many broken ground wires, along with several others with broken insulation, some with broken copper strands etc. I have already had the right and left wire harnesses replaced at an independent dealer for about $2200. This is a safety issue and I'm worried that more will come.

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This has been happening to other 2005 BMW 530i owners. While braking vehicle idrive gave warning that rear driver side brake light failed and then that the rear light had a malfunction. Upon looking at the wiring harness attached to the taillight bulb carrier, the brown wire is burnt outside of the harness. The rubber coating of the wire is burnt through and the wire is exposed. The plastic wire harness is burnt and melted. The taillight bulb carrier is also burnt and melted. Exactly what has happened to my car. The ground wire has way too much current on it resulting in melting and possible fire.

While braking vehicle idrive gave warning that rear driver side brake light failed and then that the rear light had a malfunction. Upon looking at the wiring harness attached to the taillight bulb carrier, the brown wire is burnt outside of the harness. The rubber coating of the wire is burnt through and the wire is exposed. The plastic wire harness is burnt and melted. The taillight bulb carrier is also burnt and melted.

I discovered failures of multiple wires in the tailgate/rear window wiring harnesses. Through research online I have found this is a common problem with this vehicle over several model years - search for BMW e61 tailgate wiring problems. The failures are caused by a poor design where the wires entering the hinge guides (4) for the glass and tailgate are repeatedly flexed at a sharp angle until the insulation, then the copper wire breaks. Safety issues - possible electrical short circuit leading to fires (highest load is for rear defroster); lighting failures (rear high brake light, license plate lamps and others); reduced visibility due to loss of wiper/washer/defroster; rear glass latch opening while underway, possibly resulting in loss of cargo or ingress of exhaust fumes. This is not an easily repaired problem. It would be beyond the capabilities of all but a skilled mechanic with proper tools. I discovered it when the remote lock/unlock using the key fobs failed. As I investigated I found the broken wire, along with several others with broken insulation, some with broken copper strands.

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