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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £3.99 | 3 to 5 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
Product Number: MAF-186
The MAF-186 is a Mass Air Flow (MAF) sensor designed as a direct replacement for a range of BMW petrol and diesel applications spanning 2001 to 2011. Covering 29 vehicle applications across the BMW 1 Series and 3 Series ranges, this sensor restores accurate air mass measurement to the engine management system, supporting correct fuelling, combustion efficiency, and overall engine performance.
As a critical input to the engine control unit, the mass air flow sensor monitors the volume and density of intake air in real time. A failed or degraded MAF sensor commonly presents as rough idling, poor throttle response, increased fuel consumption, or a stored fault code - replacing the unit with a correctly specified sensor is the standard workshop remedy.
The MAF-186 is compatible with BMW models powered by the M47 D20 (204D4) and N47 D20 A diesel engines, among others, across the E46, E87, and E90 body series. Verified fitment spans model year production from September 2001 through to 2011, covering 29 individual vehicle configurations from a single BMW make. Full fitment data is available on the product listing.
This sensor carries an extensive cross-reference listing of 69 OE and aftermarket part references, including BMW OE reference 13 62 7 788 744, and equivalents from suppliers including Bosch (0 928 400 529), Delphi (AF10303-12B1), Febi Bilstein (29476), Hella (8ET 009 149-461), and Hitachi (135097), among others.
Supplied as a single replacement sensor unit. No warranty information is stated for this product.
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| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
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Standard Delivery: £3.99
Delivery Estimate: 3 to 5 working days
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A. The MAF-186 fits BMW, including models such as the 1, 3 — 29 vehicle applications in total. Use the selection widget to match your make, model and engine, or search our cross-referenced catalogue by OEM number or machine model; ask Simon if your vehicle is not listed.
A. Fit depends on your engine and year as well as the model. Check your vehicle in the selection widget against the full application list before ordering, or ask Simon if your variant is not shown.
A. The MAF-186 cross-references to BMW OE part number 13 62 7 788 744. The listing includes 69 OE and aftermarket references in total, with equivalents from Bosch (0 928 400 529), Delphi (AF10303-12B1), Febi Bilstein (29476), Hella (8ET 009 149-461), Hitachi (135097), and others including Elta, ERA, Kamoka, and JP Group, among further suppliers.
A. Confirmed engine codes in the fitment data include the M47 D20 (204D4) diesel and the N47 D20 A diesel, fitted across the BMW 1 Series E87 and 3 Series E46 and E90 body ranges. Full engine-to-model fitment detail is available on the product listing.
A. Yes. Every vehicle and OE cross-reference shown for this part is checked against manufacturer data and backed by our Fit Guarantee. If it is not right, our Fit Guarantee or hassle-free returns have you covered.
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