Preheating control unit
12 21 7 800 15612217800156·short number 7800156Genuine BMW Part
Photos coming soon — see the BMW diagram below
02 View BMW DiagramSee this part on the official exploded view→Genuine BMW part 12 21 7 800 156: Preheating control unit. The number stamped on the part is 12217800156; BMW's catalog files it under the short number 7800156. You will find it on our Electrical shelf, under ALTERNATORMOUNTING PARTS. BMW has since replaced it with 8591724.
BMW's catalog records no E36 or E46 it is fitted to; it belongs to other BMW models.
BMW draws it on 2 diagrams, among them Glow Plug Unit (12_1197) and Glow Plug Unit (12_1416). It weighs about 200 g (0.4 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
Details
12 21 7 800 156122178001567800156No fitment data available for this part.
Supersession
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- Good — minimal wear, fully functional.
- Fair — normal wear, fully functional.
- Acceptable — visible wear, still functional.
Returns: 30 days if a part arrives damaged or isn't what the listing described. Full policy.
Shipping: Ships within the US. Orders ship within 1–2 business days; small parcels ship free on orders of $75.00 or more. Oversize items ship at a flat $49.99 each — free shipping does not cover them.