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Author Topic: Third brake light always on  (Read 148 times)

Offline vinceUK

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Third brake light always on
« on: Yesterday at 01:52:58 pm »
Hi all,

The third brake light of my 2008 Golf mk5 TSI is constantly ON despite the ignition being OFF (not on the accessory position) and the brake pedal not pressed. The other rear brake lights remain OFF as expected and they work correctly when the ignition is ON. I have to remove the related fuse from the engine fuse box to turn it OFF so it won't drain my battery.

I've noticed that water was sometimes leaking from the boot trim after a rainy day so I am wondering if this could have damaged the third light circuitry somehow.

Has anyone already experienced this issue? How should I investigate it?

Thanks,
Vince
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Offline mjmallia

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Re: Third brake light always on
« Reply #1 on: Today at 08:58:35 am »
Wires in the tailgate loom are most probably broken and arcing
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Mike

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S3 8L ---- Golf Mk4 GT TDI ---- Lupo GTI ----  A4 B6 Sline ---- Golf Mk5 GTI

Offline Octoparrot

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Re: Third brake light always on
« Reply #2 on: Today at 01:10:51 pm »
Quote from: mjmallia on Today at 08:58:35 am
Wires in the tailgate loom are most probably broken and arcing

Yes this would be my first port of call.
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