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FREE SHIPPING on US orders over $75 (oversize excepted) • Quality used E36 & E46 parts • Every part inspected & graded
3 Series Parts

Secondary air filter

BMW Part Number:11 72 1 716 578
11721716578short number 1716578
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One email the moment one is listed — nothing else.

Fits E46 — 316Ci, 316i, 316i 1.6, 316i 1.9, 316ti, 318Ci, 318i, 318ti
Select your vehicle to check fitment

Genuine BMW Part

Photos coming soon — see the BMW diagram below

Secondary air filter – BMW diagram05 View BMW DiagramSee this part on the official exploded view

Genuine BMW part 11 72 1 716 578: Secondary air filter. The number stamped on the part is 11721716578; BMW's catalog files it under the short number 1716578. You will find it on our Engine shelf, under Secondary air system.

It fits every E46 body style (316i, 316i 1.6, 316i 1.9, 316ti, 318i and 318ti, 1997–2003), with the M43, N40 or N42 engines.

BMW draws it on 2 diagrams, among them Emission Control-Air Pump (11_2193) and Emission Control-Air Pump (11_3198). It weighs about 120 g (0.3 lb).

We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.

Details

BMW Part Number11 72 1 716 578
Also written as117217165781716578
QualityGenuine BMW · OEM

Every used part is inspected and graded before listing. Condition grades:

  • 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.