Rear Tail light warning

[Gagan3774]

Hi,

I recently got my rear left outer light damaged and I bought one aftermarket from eBay, and it shows check the rear light warning, i removed that plugged back my old one and the error disappears. i have plugged all the wires correctly as oem. can someone help me if I need to do any sort of coding as I have obdeleven 3 or should i purchase the overpriced oem one.
Thanks

 

[DaveS]

When I swapped one on my Mk3 a few years back, no coding was needed. The one I purchased was original though.