Bulb failure icon alight

[carbman]

The yellow bulb failure light has started coming on in my '62' reg car.

I have checked all the bulbs I'm aware of, but can't see any that have failed.

Is this a common fault on this car or is there something I'm missing? Any help please?

[moley]

I used to get this problem on a previous Octavia after I washed the car, the next day the bulb out light would come on then go off the next day. After about a month the nearside side light bulb failed, when I replaced it the problem went away, so you probably have a dodgy lamp or a bad connection. 

The system monitors the resistance across all of the lamps, so a blown lamp reduces the overall resistance.

[moley]

Double post

Edited 17 November, 2013 by moley

[ryan-re]

which bulbs have you checked. Make a list as we might be able to tell you ones you missed.

Front to back:

 

dipped beam

main beam

indicator front

DRL

Fog

Indicator in mirror

Front interior light x 3

rear interior light

Front Door lights (1 per front door)

Boot Light (x2)

Rear side lights (2 x w4w bulbs per cluster)

Rear side light/brake light

reversing lights

rear side/fog lights

 

Dont think i've missed any

[rlp]

had same problem with mine last week, check all the bulbs by looking at the filment - nothing wrong. then I checked them with a continuity tester and foud a rear light blown but it still looked OK

[Guest]

In actual fact a blown bulb would increase the resistance not decrease :-)

[RainbowFire]

which bulbs have you checked. Make a list as we might be able to tell you ones you missed.

Front to back:

 

dipped beam

main beam

indicator front

DRL

Fog

Indicator in mirror

Front interior light x 3

rear interior light

Front Door lights (1 per front door)

Boot Light (x2)

Rear side lights (2 x w4w bulbs per cluster)

Rear side light/brake light

reversing lights

rear side/fog lights

 

Dont think i've missed any

 

Certain lights are not on the diagnostic system.

[carbman]

Thanks everyone for your help. Will go through all the checks later on today.

[JD52]

Try getting a VCDS reading, it may well show which bulb is failing.

[erindad]

My mate was tearing his hair out as the blown bulb indicator was on all the time , he checked them a dozen times taking them all out and finding they were all working changing the ones he thought were dodgy

 

In the end he took it to a garage and they changed the high brake bulb , problem solved.

 

  Easily overlooked

[carbman]

Try getting a VCDS reading, it may well show which bulb is failing.

Hi Bubbles, what is a VCDS please?

[JD52]

It's the diagnostic/configuration device that plugs into your cars diagnostics socket.

 

Check out the diagnostics and vcds forum at :-

 

http://www.briskoda.net/forums/forum/23-diagnostics-vcds/

 

It gives info on what it is, and you may also be able to find somebody locally that can help you out.

 

Cheers

[john.errington]

Similar issue, the fault turned out to be ONE of the number plate lamps. not obvious and not something you might think of to check!