Rear LED tail light flicker weird!

[Begazzz]

Hi all.

First post and and looks like a common fault but not quite found what I'm looking for ( not a U2 quote)

car is 2008 2.7 avant Le Mans

2nd time today I've been flagged by another motorist saying my rear led lights ( not high level or brake lights) flick/flash on ever so quickly.

Had ad a look tonight with auto lights off and finally saw it. You'll almost miss it if you blink. Sometimes left or right one but not necessarily one after the other sometimes one will do it twice.

If if it was nackered completely I'd start looking at the earth thing being bad but this seems a bit weird.


Please can can anyone tell me wher to start. Thanks all in advance.

Dom.

[Begazzz]

Just be clear the lights are standard led tail lights. Ta.

[gupsterg]

Hi all.

First post and and looks like a common fault but not quite found what I'm looking for ( not a U2 quote)

LOL , Welcome to VWAF! .

car is 2008 2.7 avant Le Mans

2nd time today I've been flagged by another motorist saying my rear led lights ( not high level or brake lights) flick/flash on ever so quickly.

Had ad a look tonight with auto lights off and finally saw it. You'll almost miss it if you blink. Sometimes left or right one but not necessarily one after the other sometimes one will do it twice.

If if it was nackered completely I'd start looking at the earth thing being bad but this seems a bit weird.


Please can can anyone tell me wher to start.

If in your shoes I'd first remove the tail light units to inspect connections.

[Begazzz]

Yea guess your right. I suppose there are wires going back up to feed the lights in the tailgate as well? But they are doing the same thing so if they are in line then that should be the source. If not I'll smash it to pieces and sell it. I just think it's weird they are both doing it.

[gupsterg]

Outer tail lights harness goes into body, then control unit.

Inner tail lights harness goes to hinge, then control unit.

IIRC .

Will look at wiring diagram and other stuff tomorrow .

TBH first thing I'd have done is scanned car with VCDS but as I think you don't have that I skipped that step .

[MarkTM]

Are their any dash warnings of bulb failure?

Annoyingly was in Heavitree (Exeter) yesterday and had my laptop and VCDS with me.

If you ever drive up as far as Weston then let me know and I'll do a scan for you?

[Begazzz]

Are their any dash warnings of bulb failure?

Annoyingly was in Heavitree (Exeter) yesterday and had my laptop and VCDS with me.

If you ever drive up as far as Weston then let me know and I'll do a scan for you?

Thanks for that appreciate the offer. May well do as its dying for a run anyway. There are no warning lights showing at the moment either.

[Begazzz]

Hi just an update. Checked connections and continuity of lights in main body (can't work out how to get to ones in tailgate)

anyway all look good and clean with no signs of sooting. After watching a bit longer it has a cycle. All LEDs light up very briefly (tailgate and wing lights then a few seconds later just the ones in the tailgate come on very briefly. (High level one not affected) only one side at a time? Weirder!

[gupsterg]

Checked connections and continuity of lights in main body (can't work out how to get to ones in tailgate)

Where the warning triangle is located in the tailgate open that cover, then you will see 2 plastic slot head locking elements either side, twist each 90 degrees (IIRC) and then the outer covers where you would assume the rear of tailgate lights to be should come off.

[Begazzz]

Okey dokey. I'll check them tomorrow before I book it in I think as it's such a autonomous rhythmical pattern of flickering it must be a control unit or sumink ....