headlight ballast replace

Oct 20, 2019
2
0
Hi. After the accident I have to replace left headlight with ballast. Does anyone know if this item is p&p or needs programming? I already bought 3 ballasts with the same part number on ebay and none of them works.. New headlight 100% working with ballast from driver side headlight.
Any ideas?
Part number 7P5.941.591.AD

Leon ST 17 plate, facelift model, full led with headlight washer sysytem, xcellence.

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RUM4MO

Active Member
Jun 4, 2008
7,784
983
South Scotland
I'd expect it to be P&P, and to back that up, you have had success with using the ballast from the other side of your car.

So, that might point to you being sold duff ballasts, which seems unusual if you have bought 3 used ones, but maybe they fail when the car has been crashed and its associated headlight damaged - and that will be the type of car you are buying used parts from.
 

RUM4MO

Active Member
Jun 4, 2008
7,784
983
South Scotland
Hum, these are not ballast units, I just believed what you wrote as I assumed that your car had HID headlights - but I see that was never an option for this Leon, that is a control unit for the LED headlight, and that part number is valid up to 2019MY.
 

RUM4MO

Active Member
Jun 4, 2008
7,784
983
South Scotland
Well someone reported this on a Golf in the RossTech forum but that thread did not develop far enough into a conclusion, so no help there, sorry!
 
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