BMW Electrical Sensors, Switches, & Relays for BMW 3 Series F30 (2012+)

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Electrical gremlins can be very frustrating. Luckily your BMW's electrical system is better than most, even if it's 25 years old. Here you will find electrical relays, sensors, switches, and modules for the engine, camshaft, and crankshaft. Our parts are OEM, Genuine BMW, or approved aftermarket brands that we have an excellent track record with. There is no middle ground with electrical parts - it either works perfectly or not. And there's nothing more frustrating than a new part that fails right out of the box. So it's important to choose quality replacement parts over a cheap but faulty piece.

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BMW B58 3.0L Oxygen Sensor - Downstream
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Walker - Corporate Logo
T#:5229442
Part#: 11788611294
Ships in 3 Business Days
$ 159.99

This product was last offered at the strikethrough price on
04-10-2026

$ 138.99 USD
Free Shipping
$ 138.99 USD
Free Shipping

BMW B58 3.0L Oxygen Sensor - Downstream is essential for maintaining optimal engine performance and fuel efficiency. Turner Motorsport offers this high-quality replacement sensor designed to precisely measure exhaust oxygen levels, allowing the vehicle's computer to accurately adjust the air/fuel ratio and monitor emissions. A degraded oxygen sensor can lead to decreased engine performance, reduced fuel efficiency, and increased harmful emissions, potentially triggering the Check Engine Light and causing a failure in emissions testing.

  • Ensures Optimal Engine Performance: Accurately measures exhaust oxygen levels for precise air/fuel ratio adjustments.
  • Improves Fuel Efficiency: Helps maintain proper fuel mixture, reducing fuel consumption.
  • Reduces Harmful Emissions: Keeps emissions in check, ensuring compliance with environmental standards.
  • Prevents Check Engine Light Activation: Helps avoid unnecessary warning lights and potential emissions test failures.
  • Quality Replacement: High-grade sensor designed specifically for the BMW B58 3.0L engine.
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Hitachi Camshaft Position Sensor - BMW E9X F3X F8X N20 N52 N55 S55 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Hitachi - Corporate Logo
T#:48815454
Part#: 13627525014
Ships in 7 Business Days
New Item
$ 40.00 USD
Free Shipping on orders $49 and up
The camshaft position sensor communicates the position of the camshaft to the computer. This helps the computer to calculate proper spark and fuel control. If you're struggling with CELs, hard starts or no starts, stalling, and/or a rough idle, you may need to replace the cam position sensor.
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Walker MAP Sensor - BMW N20 N26 S55 S63
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Walker - Corporate Logo
T#:39059258
Part#: 13627843531
In Stock at Vendor
$ 163.99

This product was last offered at the strikethrough price on
04-10-2026

$ 135.99 USD
Free Shipping on orders $49 and up
$ 135.99 USD
Free Shipping on orders $49 and up
This is a replacement Manifold Absolute Pressure sensor Located on the charge air cooler. The MAP controls the amount of fuel that goes through the injectors based on the pressure of air at the intake manifold. If your vehicle is giving you a MAP 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, the vehicle will stutter and stall as it falls into a limp mode. One way to check if your MAP is bad is to unplug the connector before starting your car. If it idles well (compared to a previous poor idle), your MAP sensor likely needs to be 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.
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Hitachi Engine Crankshaft Position Sensor - BMW F2X F3X
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Hitachi - Corporate Logo
T#:48850074
Part#: 13627582842
Ships in 7 Business Days
New Item
$ 184.99 USD
Free Shipping on orders $49 and up
Engine cranks but doesn't start? This sensor is often the issue.

Hitachi Crankshaft Sensor - BMW B46 B48 B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Hitachi - Corporate Logo
T#:48850081
Part#: 13627806782
Ships in 7 Business Days
New Item
$ 81.99 USD
Free Shipping on orders $49 and up
Tells the computer whether the timing is correct in the engine.
Hitachi Crankshaft Position Sensor - BMW N20 N26 2.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Hitachi - Corporate Logo
T#:48815475
Part#: 13627595860
Back Ordered
New Item
$ 68.99 USD
Free Shipping on orders $49 and up
This is the crankshaft position sensor. It provides information for the ECU. A faulty sensor can cause issues with timing adjustment and limit performance and vehicle operation. Replace your sensor with a high-quality Hitachi sensor to restore peak performance.
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