Yesterday, without any warning, I found myself unable to open the boot on my E39. I could still open it using the key, but pushing the button did not do anything. Additionally, the ‘boot open’ light was permanently illuminated on the dashboard.

dav

Worst-case scenarios rushing through my head, I did some poking round and quickly discovered it was only a minor problem – a couple of the wires in the wiring loom had simply frayed or broken apart. Apparently this is a common problem on the E39, given the way the loom bends when the boot lid is shut.

sdr

Pulling out some of my rarely-used electrical skills, I found a few butt connectors in my toolbox, and quickly had the wires reconnected. I also added a bit of electrical tape to a few additional wires showing signs of decay.

sdr

Unfortunately, the split happened quite deep inside the rubber protector that surrounds the loom, and I was only able to access it by cutting back some of the rubber. I’ve resealed it with some tape, and though it’s not the neatest finish, it will suffice.

dav

Thankfully, a few minutes of snipping, stripping, and crimping was all it took to get the boot release back into action.

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