austingtir

I have purchased a replacement left side tail light for our facelift jap import W212 E350 2014 year model.

These cars have a well known fault with the left rear tail light being glitchy or not working at all due to bad connections on the plugs to leds internally.

I have found as pictured the main conector plug is different on the new part number A21290661303 VS my old jap import light with A2129060703

Has anyone tried rewiring these new ones into the old ones? The old one is 5 wire the new one is 4 wire??

I was just going to cut a splice it in but then realized the wiring is I guess different between the two not just the plug being a different shape?

I purchased these from pelican parts but id rather just somehow splice them in than send them all the way back from New Zealand!

Can anyone provide a wiring diagram so I can figure the wiring out? Im hoping the diffence is only two grounds or something like that for the extra wire....??

Mud

I'm not around my shop laptop right now, but hopefully someone can get to a wiring diagram. If not you can pm me your VIN and I can see if my WIS lists your model.
You seem like enough of DIY-inclined that it may be of help to get the WIS/EPC factory manual discs. Less than US$20 on eBay.
May be of future benefit to you as they include full factory wiring and BUS/LIN communication diagrams.

konigstiger

See attachments.