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BMW Electrical Sensors, Switches, & Relays for BMW 3 Series E46 (1999-2005)

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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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Meyle Crankshaft Position Sensor - E36, E39, E46, E53, E60, E83, Z3, ...

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T#:369703

Part#: 12141709616

In Stock

$ 46.99 USD

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$ 46.99 USD

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Does not include O-ring

BMW M52 Engine Crankshaft Position Sensor

T#:373958

Part#: 12141709616

In Stock

$ 97.99 USD

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$ 97.99 USD

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Ambient Temp. Sensor

T#:31589381

Part#: 65816905133

In Stock

$ 20.99 USD

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$ 20.99 USD

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FAE Exhaust Camshaft Position Sensor

Sensor for the exhaust camshaft

T#:1196088

Part#: 13627796054

Ships on Dec 7, 2026

$ 74.99

This product was last offered at the strikethrough price on
09-16-2026

$ 54.99 USD

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$ 54.99 USD

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Located on rear of the cylinder head, sensing the exhaust cam

Meyle Exhaust Camshaft Position Sensor - BMW S54 S62

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T#:55497462

Part#: 3148000038

In Stock

$ 27.99

This product was last offered at the strikethrough price on
09-14-2026

$ 25.99 USD

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$ 25.99 USD

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Don't let a failing camshaft position sensor rob your vehicle of power or cut your track day short. This Meyle replacement camshaft sensor is built to deliver fast, highly accurate data to the ECU, preventing the performance drops, sluggish throttle response, and rough idling caused by worn-out factory electronics. Engineered to withstand high underhood heat and intense vibrations, it keeps your ignition timing and fuel delivery tightly synced, whether you are daily driving or pushing through high-RPM pulls.

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Knock Sensor

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T#:35964551

Part#: 13627568422

Back Ordered

$ 75.99 USD

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$ 75.99 USD

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This sensor detects engine knocking or pinging and adjusts the timing to ensure optimal engine performance and efficiency.

Meyle M52 M54 Camshaft Position Sensor - 12147539165 - E46, E39, E60,...

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T#:20155632

Part#: 12147539165

Ships on Dec 1, 2026

$ 52.99 USD

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$ 52.99 USD

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A bad cam sensor can cause a variety of problems from hard starting to stalling at low speeds. Cam sensor replacement has been known to cure many drivabilty issues.

Stop Light Switch

T#:31092548

Part#: 61316967601

In Stock

$ 15.99 USD

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$ 15.99 USD

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Water / Oil Temperature Sensor - E46, E90 E92 E39 and more

T#:7256

Part#: 13621433076

In Stock

$ 16.99

This product was last offered at the strikethrough price on
09-26-2026

$ 14.99 USD

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$ 14.99 USD

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This coolant / oil temperature sensor is mounted in the cylinder head and/or the oil filter housing and/or water pump/ thermostat housing. Also used as an oil temperature sensor on cars with SMG transmissions.

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Liqui-Moly Battery Clamp Grease - 50 grams

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T#:1195997

Part#: 20244

In Stock

30% off MSRP $ 7.99

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

$ 5.59 USD

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30% off MSRP

$ 7.99

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

$ 5.59 USD

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Excellent corrosion protection for your battery and other connections

Crankshaft Sensor O-Ring (18 X 1.2 Mm)

T#:13233505

Part#: 12141402705

Ships in 1 Business Day

$ 1.49

This product was last offered at the strikethrough price on
08-26-2026

$ 1.28 USD

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$ 1.28 USD

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This O-Ring can sometimes leak at the bottom of your engine and need to be replaced. Fits around the head of the lower crankshaft sensor and provides a connection point.

Oil Pressure Switch

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T#:5944185

Part#: 12618611273

Ships on Dec 7, 2026

$ 6.99 USD

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$ 6.99 USD

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This Meyle Oil Pressure Switch is the ideal service replacement to keep your BMW or European powerhouse performing reliably on the street or track.

FAE Air Temperature Sensor - E36, E38, E39, E46, E53, E83

T#:596540

Part#: 13621739510

In Stock

$ 12.99 USD

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$ 12.99 USD

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Monitors intake air temperature

Temperature Sensor Wiring Repair Kit

T#:59038384

Part#: 10171

Ships on Dec 8, 2026

$ 32.99 USD

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$ 32.99 USD

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SenCom's repair kit restores it with a 2-wire, 200mm pigtail of silicone-insulated copper-tin wire.

Meyle Air Temperature Sensor - 13621739510 - E36, E46, E39, E38, E83,...

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T#:55281743

Part#: 13621739510

Ships on Dec 7, 2026

$ 21.99 USD

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$ 21.99 USD

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Meyle Camshaft Position Sensor - 12147518628 - 3, 5, 6, 7 Series, X3,...

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T#:59991931

Part#: 12147518628

Ships on Dec 7, 2026

$ 33.99 USD

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$ 33.99 USD

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Meyle S54 M3 Crankshaft Speed Sensor - 13627548994 - E46 M3

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T#:59991872

Part#: 13627548994

Ships on Dec 7, 2026

$ 41.99 USD

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$ 41.99 USD

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FAE Oil Pressure Switch - M12x1.5

T#:374049

Part#: 12617568480

Back Ordered

$ 7.99 USD

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Qty

$ 7.99 USD

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Leaking or malfunctioning oil pressure switches can be disastrous

FAE Oil Pressure Switch - M12x1.5

T#:377029

Part#: 12612367061

Back Ordered

$ 5.99 USD

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$ 5.99 USD

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Leaking or malfunctioning oil pressure switches can be disastrous

Meyle Outdoor Temperature Sensor / Probe

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T#:579266

Part#: 3009190001

Back Ordered

$ 44.99 USD

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$ 44.99 USD

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Common fix for incorrect OBC temperature readings

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