V50 Electrics : - '11 V50 - Weird brakelight bulb behaviour

Matt240 · Jan 12th, 2018, 16:25

I noticed this on my mothers car a while ago and being more of an older car kind of person I really can't think what this issue could be. The left hand brake light comes on very dim and quickly turns off leaving nothing... We tried it a few times and the timing is very consistent.

4x4 · Jan 12th, 2018, 16:28

Check for a poor earth at the light unit

MacV50 · Jan 13th, 2018, 15:06

Had exactly the same issue on my 2012 V50. It was a failed LED unit that was fixed under warranty in under an hour. The part is available separately so shouldn't be too expensive

Matt240 · Jan 13th, 2018, 17:09

Quote:

Originally Posted by MacV50

Had exactly the same issue on my 2012 V50. It was a failed LED unit that was fixed under warranty in under an hour. The part is available separately so shouldn't be too expensive

Sounds like a fairly simple fix then. Are you able to clarify what you mean by LED unit? I'm guessing either the bulb itself or some kind of controller nearby.

MacV50 · Jan 13th, 2018, 17:46

Quote:

Originally Posted by Matt240

Sounds like a fairly simple fix then. Are you able to clarify what you mean by LED unit? I'm guessing either the bulb itself or some kind of controller nearby.

There's a board in the light unit that carries the LEDs and some control circuitry. That's all they had to replace on mine to sort the issue and given your issue is just on the one side, I would be pretty sure it's the same issue.

I think it was just a case of taking off the light unit from the rear, swap the board and put everything back together. You could possibly get a working light unit from a breakers and just use the circuit board but I think you'd still be cheaper with a new part from Volvo

Jan 12th, 2018, 16:28	#2
4x4 Premier Member Last Online: Today 18:33 Join Date: Dec 2017 Location: North of Hadrian's Wall & South of Antonine's Wall View Photos By: 4x4	Check for a poor earth at the light unit __________________ MY2010 XC90 SE (M66-manual) Magic Blue (467) Sold MY1997 850 GLT (62,000 miles) Silver Sand (419) MY2005 V70 2.5T (66,000 miles) Willow Green (471) Volvo 850 GLT website

Jan 13th, 2018, 15:06	#3
MacV50 Master Member Last Online: Apr 28th, 2024 17:56 Join Date: Feb 2012 Location: Aberdeen	Had exactly the same issue on my 2012 V50. It was a failed LED unit that was fixed under warranty in under an hour. The part is available separately so shouldn't be too expensive

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