BMW Mass Air Sensor & Air Flow Meters for BMW X Series E70 (2007-2013)

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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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MAP Sensor
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vitesco Technologies - Corporate Logo
T#:39329317
Part#: 13628644432
Ships in 8 Business Days
$ 110.00

This product was last offered at the strikethrough price on
07-08-2026

$ 100.99 USD
Free Shipping on orders $49 and up
$ 100.99 USD
Free Shipping on orders $49 and up
The manifold absolute pressure sensor (MAP sensor) is one of the sensors used in your N55 engine's electronic control system. The manifold absolute pressure sensor provides instantaneous manifold pressure information to the engine's electronic control unit (ECU/DME). The data is used to calculate air density and determine the engine's air mass flow rate, which in turn determines the required fuel metering for optimum combustion, efficiency, and ignition timing.
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Vitesco Mass Air Flow Sensor - N55, N52
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vitesco Technologies - Corporate Logo
T#:33512934
Part#: 13627593624
In Stock
$ 210.99 USD
Free Shipping on orders $49 and up
The MAF of your vehicle decides the quantity of fuel that is fed to the injectors according to the volume of air coming through the intake.
OEM Bosch Mass Air Flow Sensor - E70 xDrive 35d, E90 335d
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Bosch - Corporate Logo
T#:384345
Part#: 13628509725
In Stock
$ 122.20 USD
Free Shipping on orders $49 and up

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 OEM Bosch sensor to restore normal operation. 

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!

Vehicle Fitment:
2007-2013 BMW E70 xDrive 35d - M57N2 Engine
9/2008 - 2013 BMW E90 335d - M57N2 Engine

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