Citroen C5 Headlamp Problem

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Stub Mandrel
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Citroen C5 Headlamp Problem

Post by Stub Mandrel »

I had an intermittent problem with my driver's side headlamp. It would go off for a few minutes, then come on again after going over a bump and be OK for months. Then it went off on a long journey, before coming on again. Now it's gone off again and I can't get it to light. The bulb is fine.

I can't search for a bad contact or sticky relay in the wiring because I can't figure it out.

The Car is a C5 with a 56 plate.

I can't find the fuse! The engine compartment board has this layout:

Image

But the table below that diagram doesn't list a headlamp fuse, or one for any of the other fuse panels. I've looked on several websites.

Which connector supplied the headlamp?

Is there a headlamp relay? If so how do I access it?

All suggestions welcome.

Thanks

Neil
Stub Mandrel
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Re: Citroen C5 Headlamp Problem

Post by Stub Mandrel »

The website for the fuse diagram is https://fusesdiagram.com/citroen/fuse-b ... -2008.html

I've also dug out the manual, and it doesn't list headlamp fuses at all!
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GiveMeABreak
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Re: Citroen C5 Headlamp Problem

Post by GiveMeABreak »

First of all pop your VIN up (automasked on submission). Wiring diagrams and fuses are vehicle and option-specific. Then I'll have a look for you.
Hell Razor5543
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Re: Citroen C5 Headlamp Problem

Post by Hell Razor5543 »

Do very closely check the bulb (consider replacing it). Several years ago I had a tail light that worked most of the time, but occasionally it wouldn't. The filament looked fine (and, when tested with a multi-meter, it tested OK), but when I tapped the bulb a few times I found that the filament was not properly fixed at one end, so it could 'drift' away from the post and stop working.
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citroenguy
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Re: Citroen C5 Headlamp Problem

Post by citroenguy »

I pretty sure there is no fuse.
How does the bulb connector look? melted?
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myglaren
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Re: Citroen C5 Headlamp Problem

Post by myglaren »

Easy to check by fitting a new bulb.
Stub Mandrel
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Re: Citroen C5 Headlamp Problem

Post by Stub Mandrel »

OK I've sorted it. I just rattled every connector in sight and when I switched on it works... so if it happens again I will work through them logically and (hopefully) see which is the problem.
Stub Mandrel
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Re: Citroen C5 Headlamp Problem

Post by Stub Mandrel »

GiveMeABreak wrote:
04 Dec 2021, 15:55
First of all pop your VIN up (automasked on submission). Wiring diagrams and fuses are vehicle and option-specific. Then I'll have a look for you.
It will be useful if anything else ever goes:

VIN is VF7**************[VIN obfuscated, can be read by forum staff]

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GiveMeABreak
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Re: Citroen C5 Headlamp Problem

Post by GiveMeABreak »

So you have the standard Halogen headlamps. There are no direct fuses for these, so I would still go back and remove / recheck the fitting of the bulb as they can be a nightmare and replace the bulb with another as you can't always tell a faulty one by looking at it.