UKPoohbear

I'm pretty sure that both rear fog lights used to work but can't be 100% certain ..... I've also noticed that the failed bulb detection test isn't run until the light are turned on. It's only when I turn on the lights that the failed bulb warning light comes up. It also seems that the supply is not removed from failing/failed bulbs. In attempting to sort out what was going on, I completely removed the fog/tail light bulb on both the passenger and driver side, which I would have expected to be the same as a blown bulb. I then checked the sockets with a volt meter. The driver side showed a low/high voltage with no bulb as the rear fog light was turned off/on. While the passenger side stayed at a low voltage with no bulb present. I'm begining to think the fault is with the supply to the lights rather than anywhere in the rear light clusters?

Sorry - wasn't quite finished .... Checked all the lights carefully. Finally worked out that it is one of the rear tail/fog lights which sort of doesn't work. It's a single filament bulb and works as a combined fog/tail light. I guess when the rear fog light is turned on a higher voltage is applied to increase the brightness? Switched bulbs around and the same rear fog light doesn't come on so not the bulb. I guess there's a bad connection somewhere in the fog light circuit - one works, the other doesn't. Any suggestions as to where to start looking? My first assumption would be that as one rear fog light operates and the other doesn't, it's somewhere in the rear near the clusters but I guess that would be too easy? Thanks,

OK - I thought I had the problem solved but no 😞 Went all around both rear light clusters, no significant corrosion obvious, gave the solder pip on all the bulbs a bit of a rub with some emery, bent up all the contact tags, rotated the bulbs back and forth a number of times when re-inserting. Started the car, waited a minute or so, got out went round the car and checked all lights working, got wife to come out and confirm brake and reversing lights were working - which they all were. Got back in the car and went to drive off and the bulb failed warning light comes on !!*$@***

Thanks all. I hadn't appreciated that the blown bulb detection system is quite so sensitive! There's no water around the rear light clusters but I'll have a look for corroded/worn holder connectors/bulb pips.

For some time, the "bulb blown" warning light has been lighting up on the dash. I check and all lights are working. Ignore and forget the warning light and a few days or weeks later it goes out. The warning light coming on/going out seemed to be associated with the rear doors or tailgate being opened/closed but I can't be definite about that. A couple of months back, the warning light came on - I checked and found a rear light wasn't working. Removed the cluster and the bulb looked OK, so I checked with a meter. Bulb wasn't blown. Replace bulb and it worked - except, there's another rear light not working. Checked bulb - bulb is not blown. Went through this 3x - finally, all lights working - except dash warning light is still on. In desperation, tried slamming rear doors/tailgate but warning light stays on. Very frustrating and annoying as I don't know when a bulb really does fail! Anybody any ideas? I don't have any circuit diagrams but Is there some sort of distribution point for the rear lights which could be where the fault is? Thanks,

This might seem a silly question because there are videos and explanations across the web except, I've looked at them and still can't get the *@£$!&* Bolero radio/stereo out. I've removed the fascias and I've removed the 4 torx screws at the corners of the radio and it still won't budge. And it's not a case of being tight or a wire caught - it is definitely locked solid, won't move even 1/2 mm. I can't see any other screws - it feels as though there are several more screws still holding it. I've poked down various slots with hacksaw blades in case there's a release latch somewhere but if there is, I can't find it. There's not a locking bolt hidden away in the glove compartment or engine compartment by any chance? Or underneath and behind the ventilation controls ... ? It's a 2011 Octavia SE 1.6 TDi Thanks, Larry