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BMW Mass Air Sensor & Air Flow Meters

We sell OEM air mass sensors, air flow meters, and HFMs (Hot Film Meter) for many BMWs. When the mass air sensor is bad you will notice your engine running out of tune. Your fuel mileage will suffer, throttle response will be poor, and you will notice a lack of power.

There should be a Check Engine Light to alert you that the air sensor is having problems. However, there may not be a fault code for the air meter itself. Often times the code comes up as fuel trim or lean condition. In these cases the air sensor could be just one of a number of potential problems.

We only sell air sensors from Original Equipment Manufacturers like, Bosch, VDO, and Siemens. Please note that HFMs are an electrical part and cannot be returned for refund.
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Bosch - Corporate Logo
T#:6055
Part#: 13621702078
Back Ordered
$ 382.99

This product was last offered at the strikethrough price on
05-07-2026

$ 371.99 USD
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$ 371.99 USD
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The mass air flow sensor measures the amount of air flow to tell the computer how much fuel to add to the mixture. If the MAF sensor malfunctions, there could be too much or too little fuel added to the mixture. Restore performance and fuel mileage with a high quality Bosch ( #0 280 217 800) replacement. OEM replacement for BMW part # 13621702078 and 13621468625. For vehicles with a production date up to 09/1998. This sensor is also known as the "540 HFM" that is used in a variety of OBD-1 E36 M3 upgrades.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Replacement mass air sensor for the M60/M62 engine. The M60 engines have a notorious fault for hesitation and sluggish response. If this is your situation the MAF should be on your list to check. The HFM is easy to replace and could cure a variety of problems.

This replacement HFM fits the following BMWs:
1993-1995 E34 BMW 540i
1997-1998 E39 BMW 540i
1988-1994 E32 BMW 740i 740il
1995-1998 E38 BMW 740i 740il
1990-1999 E31 BMW 840i 840ci

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VDO - Corporate Logo
T#:1416
Part#: 13627567451
Back Ordered
$ 280.00

This product was last offered at the strikethrough price on
05-07-2026

$ 257.87 USD
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$ 257.87 USD
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This is a high quality replacment OEM VDO Mass Air Sensor.The MAF controls the amount of fuel that goes through the injectors based on the volume of air coming through the intake. If your vehicle is giving you a MAF code, replace it immediately to ensure you get the best gas mileage and performance. It is common for this part to fail slowly and cause poor fuel mileage and hampered performance. When it fails completely, the vehicle will stutter and stall as it falls into a limp mode. One way to check if your MAF is bad is to unplug the connector before starting your car. If it idles well (compared to a previous poor idle), your MAF needs replaced. If you let this maintenance part go, your fuel economy will suffer as too much fuel is going into the engine and not being burned. A great way to give your vehicle an efficiency boost.

OEM replacement for BMW part # 13627567451 and 13621438871

OEM VDO is one of the largest OE providers in the world, supplying numerous vehicle brands, including BMW, with many of their genuine parts that build the vehicle before they ever reach the car lot. Intrusted by many of the top names in automotives and with their proven history of reliability, it makes all of us here at Turner confident that their line of OEM replacement parts are a perfect option to restore your vehicles original operation and performance. The same great quality or higher than Genuine BMW parts at a lower cost.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Complete Application List:
2001-2002 E46 330i, 330Ci
2001-2005 E46 330Xi
2001-2003 E39 530i
2001-2006 E53 X5 3.0
2001-2002 Z3 3.0

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Genuine BMW - Corporate Logo
T#:367847
Part#: 13621703275
Back Ordered
4% off MSRP $ 875.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 836.99 USD
Free Shipping
4% off MSRP
$ 875.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 836.99 USD
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Is your BMW experiencing performance issues or poor gas mileage? The air flow sensor plays a crucial role in regulating fuel mixture. If it's faulty, your vehicle might be adding too much or too little fuel, leading to subpar performance. Revitalize your car's mileage and power by replacing the air flow sensor. It's a simple DIY task with basic hand tools, and the benefits are immediate.

  • Common solution for BMW engine running issues.
  • Even without air mass sensor codes, a new air mass sensor on OBD2 BMWs can significantly enhance engine smoothness.
  • Optimizes fuel economy for a more efficient driving experience.
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Genuine BMW - Corporate Logo
T#:13133
Part#: 13621707650
Back Ordered
4% off MSRP $ 875.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 836.99 USD
Free Shipping
4% off MSRP
$ 875.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 836.99 USD
Free Shipping
Replacement mass air sensor / air flow meter.

This item fits the following BMWs:
1997-1998 Z3 BMW Z3 2.8
1998-2000 Z3 BMW M Roadster M Coupe (s52)

Genuine BMW - Corporate Logo
T#:378076
Part#: 13627547982KT
Back Ordered
$ 1,368.99 USD
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$ 1,368.99 USD
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OEM S14 mass airflow sensor remanufactured by BMW.

Includes $171.00 refundable core charge. 

This item fits the following BMWs: 
1988-1991 E30 BMW M3 

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Secondary Air Pump
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:638005
Part#: 11727553056
In Stock
$ 201.99 USD
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$ 201.99 USD
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A quality replacement Secondary Air Pump from URO. Located in the right portion of the engine bay, near the shock tower and windshield wiper fluid reservoir.

Bosch - Corporate Logo
T#:594469
Part#: 13627582551
Ships in 1 Business Day
$ 87.99

This product was last offered at the strikethrough price on
05-07-2026

$ 85.99 USD
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$ 85.99 USD
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FAE - Corporate Logo
T#:31556174
Part#: 13627540508
Ships in 8 Business Days
$ 38.99 USD
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$ 38.99 USD
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Bosch - Corporate Logo
T#:369704
Part#: 13627501554
Ships in 1 Business Day
$ 310.99

This product was last offered at the strikethrough price on
05-07-2026

$ 301.99 USD
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$ 301.99 USD
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From an original equipment supplier.

Bosch - Corporate Logo
T#:639132
Part#: 13627548103
Ships in 1 Business Day
$ 181.99

This product was last offered at the strikethrough price on
05-07-2026

$ 110.99 USD
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$ 110.99 USD
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The MAF controls the amount of fuel that goes through the injectors based on the volume of air coming through the intake. If the MAF is damaged or has not been maintained correctly your engine will not run efficiently, robbing you of performance and gas mileage.
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Genuine BMW - Corporate Logo
T#:14997
Part#: 13628509725
Ships in 1-2 days
13% off MSRP $ 592.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 513.99 USD
Free Shipping
13% off MSRP
$ 592.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 513.99 USD
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Genuine BMW Hot-Film Air Mass Meter -
This item fits the following BMW Chassis:
E70 X5,E90

Fits BMW Engines including:
M57

Genuine MINI - Corporate Logo
T#:512708
Part#: 13627599906
Ships in 1-2 days
9% off MSRP $ 162.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 148.99 USD
Free Shipping
9% off MSRP
$ 162.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 148.99 USD
Free Shipping


Genuine MINI - Corporate Logo
T#:14954
Part#: 13627540508
Ships in 1-2 days
6% off MSRP $ 150.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 141.99 USD
Free Shipping
6% off MSRP
$ 150.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 141.99 USD
Free Shipping
Genuine MINI SENSOR INLET PRESSURE
Fits BMW Engines including:
N14

Genuine BMW - Corporate Logo
T#:367846
Part#: 13621702078
Ships in 1-2 days
4% off MSRP $ 767.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 733.99 USD
Free Shipping
4% off MSRP
$ 767.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 733.99 USD
Free Shipping
The MAF (Mass Air Flow) sensor regulates the fuel flow through the injectors based on the intake air volume. If your vehicle displays a MAF code, it's crucial to replace it promptly to optimize gas mileage and performance. MAF failure often occurs gradually, leading to decreased fuel efficiency and compromised performance. When it fails completely, the vehicle may stutter and stall, entering a limp mode. A simple test involves unplugging the connector before starting the car. If the idle improves compared to previous poor idling, it's a sign that the MAF needs replacement. Neglecting this maintenance can lead to decreased fuel economy, as excessive fuel is injected into the engine without being efficiently burned. Opting for a genuine BMW replacement ensures stock-quality performance, offering your vehicle an efficiency boost.
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Bremi - Corporate Logo
T#:1196235
Part#: 13627566988
Ships in 1 day
$ 126.00

This product was last offered at the strikethrough price on
05-07-2026

$ 122.99 USD
Free Shipping
$ 122.99 USD
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From an original equipment supplier.

Genuine MINI - Corporate Logo
T#:14974
Part#: 13627582552
Special Order: No Guaranteed ETA
6% off MSRP $ 190.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 179.99 USD
Free Shipping
6% off MSRP
$ 190.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 179.99 USD
Free Shipping
Genuine MINI SENSOR INLET PRESSURE
Fits BMW Engines including:
N14


MTC - Corporate Logo
T#:372706
Part#: 13627566983
Ships in 9 Business Days
$ 145.99 USD
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$ 145.99 USD
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Bosch - Corporate Logo
T#:371816
Part#: 13621736224
Back Ordered
$ 359.99

This product was last offered at the strikethrough price on
05-07-2026

$ 282.99 USD
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$ 282.99 USD
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Clear codes, restore performance.

Hitachi - Corporate Logo
T#:5691196
Part#: 13621432356
Back Ordered
$ 156.99 USD
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$ 156.99 USD
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Replacement mass air sensor for M52TU 2.5/2.8 and M54 2.5 engines. 3.0" diameter. The mass air sensor/meter measures the volume of air being fed into the engine so that the fuel levels can be adjust for optimal performance. A faulty sensor can lead to improper fuel mixture and rough idle and poor performance and gas mileage. Replace your faulty sensor with a high-quality sensor to restore normal operation.
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Bosch - Corporate Logo
T#:381014
Part#: 13627566987
Back Ordered
$ 427.99

This product was last offered at the strikethrough price on
08-13-2026

$ 393.98 USD
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$ 393.98 USD
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A bad MAF will cause a rough idle and poor performance

E30 M3 Evo III Fuel Injection Upgrade
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:4083
Part#: E30M3-EVOIII-INJ
Back Ordered
$ 2,318.99 USD
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$ 2,318.99 USD
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Our racing fuel injection upgrade for the E30 M3 2.5 consists of four Evo III fuel injectors, Evo III Air flow meter and custom calibrated performance chip. This kit was originally designed for use on the TMS 2.5 liter engine conversion with: Stage 3 head, Schrick cams, Evo III header and straight non cat exhaust but has been a successful upgrade on other variations of this set up. The addition of these components adds the ability to supply more fuel that the 2.5 liter high performance motor demands. Choose from 7800 or 8200 rpm redline (For off road/race use only).

Kit Includes:
1 x 13621466349 - Air Flow Meter
1 x Custom Turner Motorsport Peformance Chip
4 x 13641316511 - EVO 3 Fuel Injectors


This item fits the following BMWs:
1988-1991 E30 BMW M3
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