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#1605343 - 29/07/2017 13:42 HID Headlight Fail
AdamF Offline

Registered: 16/06/2015
Posts: 35
Loc: London & Leeds

My coupe has a previously installed HID conversion, it looks like its been done to a good standard.

2 days ago my drivers headlight stopped working, had a quick look at the bulb and it appears to be fine.

What's it likely to be? Ballast?

If that's the case what are my options? Are these kits still available to buy?

Much trouble going back to standard headlights?

I'm in north London.



#1605352 - 29/07/2017 21:45 Re: HID Headlight Fail [Re: AdamF]
barnacle Offline
Club Member 18 - Membership Secretary
Forum Demigod

Registered: 17/12/2005
Posts: 31764
Loc: Hemel in the Hempstead
Equal chance of the bulb or the controller (ballast) - you can swap the bulbs side to side to see where the fail goes. You can't usually see any issue with the bulbs.

Any HID bulb will work with any controller *provided* they are the same wattage rating - usually either 35W or 50W. The wrong bulb can kill the controller. You may find that with the same bulbs and different controllers that the colours don't match exactly.

No problem swapping back to standard bulbs; just remove the existing controller, bulb, and wires, and connect the earth wire back to the tag on the holder in the headlight, and the live feed to the bulb base. Don't touch the bulb with your fingers; use gloves if you need to.

Edit: the bulbs and controllers are all over eBay. It's probably cheapest to get a complete kit and keep the old bulb/kit as spares. Bulbs dim over time.

Edited by barnacle (29/07/2017 21:47)

Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!

#1605678 - 06/08/2017 19:57 Re: HID Headlight Fail [Re: barnacle]
AdamF Offline

Registered: 16/06/2015
Posts: 35
Loc: London & Leeds
Thanks for the detailed reply.

I ended up putting it back to standard headlights!