citroen DS4 2012 - headlight unit swap

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Sun 10 Apr 2022 13:18
citroen DS4 2012 - headlight unit swap - olivier74

Would swapping a halogen reflector headlight unit with a xenon unit (also for a DS4) would work or the car ECU would just not recognise it? My car currently doesn't have xexon (besides MOT considerations)

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Sun 10 Apr 2022 13:59
citroen DS4 2012 - headlight unit swap - _

Others will know more, but a straight swap needs to conform to vehicle regulations, and there are things like wiring capacitators or somesuch too.

Edited by _ORB_ on 11/04/2022 at 06:54

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Sun 10 Apr 2022 14:12
citroen DS4 2012 - headlight unit swap - olivier74

I thought an adapter loom wiring would be sufficient. Is the balast part of the headlight unit?

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Sun 10 Apr 2022 16:43
citroen DS4 2012 - headlight unit swap - elekie&a/c doctor
Unlikely to work correctly. I would think the Bsi will need to be programmed to accept the xenon light units .
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Sun 10 Apr 2022 18:16
citroen DS4 2012 - headlight unit swap - olivier74

Therefore if swapping before the MOT for e.g, I would have to reprogram every time...I thought it couldn't be that easy

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Fri 29 Apr 2022 13:42
citroen DS4 2012 - headlight unit swap - BigJohnD

The earlier C4s with Xenon headlights had self levelling via the rear suspension and headlight washers. That made the cost of conversion uneconomic. In some cases if the cost of Xenon reflector shell assemblies was included (c. £1,000 each from the Citroen dealer) it was cheaper to trade in for a model with original factory fitted Xenons.

Not sure if this applies to newer DS4s as the regs have changed a bit since then.

Edited by BigJohnD on 29/04/2022 at 13:45

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