BMW N47 Glow Plug Control Unit – Genuine 12217810856 / 7810856 (Pre-Glow Relay)

This is a genuine BMW BERU glow plug control unit, perfect for any N47 or N47N diesel engine.

Whether you have a 1 Series, 3 Series, or X1, this part (12217810856 / 7810856) is a direct replacement.

It's a used original part, but it's in full working order with low mileage.

Cold starts can be tough without a proper pre-glow relay, so swapping in this unit will get your diesels firing up right away.

It's a 12V system component made in Germany, so you're getting quality.

If your 316d, 318d, or 520d is struggling, this might just be the fix.