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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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Oil Level Sensor - E46 E39 E60 E38 X3 X5 Z3 Z4 Z8

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T#:395203

Part#: 12617508003

In Stock

Sale - Save 7% $ 62.99

This product was last offered at the strikethrough price on
05-02-2026

$ 58.49 USD

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$ 62.99

This product was last offered at the strikethrough price on
05-02-2026

$ 58.49 USD

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This is the oil level sensor / sender for BMW E46 E39 E60 E38 X3 X5 Z3 Z4 Z8.When this part fails it will illuminate a check light on the dash which indicates it needs to be replaced. Includes o-ring. This item fits the following BMWs: 1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi M3 2008+ E90 BMW 335d 1999-2003 E39 BMW 528i 525i 530i M5 1998-2003 E39 BMW 540i 2004-2005 E60 BMW 525i 530i 1998-2001 E38 BMW 740i 740il 750il 2004-2006 E85 BMW X3 2.5i X3 3.0i 2000-2006 E53 BMW X5 3.0i 2000-2003 E53 BMW X5 4.4i X5 4.6is 1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i 2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe 2003-2006 Z4 BMW Z4 2.5i Z4 3.0i 2000-2003 E52 BMW Z8

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Bremmen Crankshaft Position Sensor - E36 E46 E39 E60 X3 X5 Z3 Z4 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:640146

Part#: 12141709616

In Stock

Sale - Save 10% $ 39.99

This product was last offered at the strikethrough price on
05-03-2026

$ 35.99 USD

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Sale - Save 10%

$ 39.99

This product was last offered at the strikethrough price on
05-03-2026

$ 35.99 USD

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This is the crank shaft 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 Bremmen sensor to restore peak performance.

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Camshaft Position Sensor - E46 M3, Z4M, Z3M S54

10X Entries Into Our F80 M3 Sweepstakes

T#:36913379

Part#: 12147539171

In Stock

Sale - Save 50% $ 89.99

This product was last offered at the strikethrough price on
05-03-2026

$ 45.00 USD

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Sale - Save 50%

$ 89.99

This product was last offered at the strikethrough price on
05-03-2026

$ 45.00 USD

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The camshaft position sensor is essential for assisting the engine DME by monitoring the camshaft's position. The data from this sensor is key to optimizing ignition timing and ensuring smooth engine performance.

Often referred to as the CMP sensor, this component is crucial for the overall functionality of the powertrain. A failing camshaft position sensor can cause a range of issues, including engine stumbling, hesitation during acceleration, power loss, and even starting difficulties or complete failure to start.

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Bremmen Camshaft Position Sensor - E46 E39 E60 E83 Z3 Z4

10X Entries Into Our F80 M3 Sweepstakes

T#:640145

Part#: 12147518628

In Stock

Sale - Save 16% $ 31.99

This product was last offered at the strikethrough price on
05-03-2026

$ 26.87 USD

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Sale - Save 16%

$ 31.99

This product was last offered at the strikethrough price on
05-03-2026

$ 26.87 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 drivability issues

Genuine BMW Socket repair kit

T#:207094

Part#: 61132359996

In Stock

Sale - Save 7% $ 29.99

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

$ 27.99 USD

Limited Qty Sale

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$ 29.99

This product was last offered at the strikethrough price on
08-20-2026

$ 27.99 USD

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Genuine BMW Rep. Kit For Socket Housing - 4 Pol.
This item fits the following BMW Chassis:
E46 M3,E46,E85 Z4,E90,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83

Genuine BMW Starter Solenoid Switch

For vehicles with production date from 09/2002

T#:39196

Part#: 12417515393

In Stock

Sale - Save 19% $ 132.99

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

$ 107.99 USD

Limited Qty Sale

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Sale - Save 19%

$ 132.99

This product was last offered at the strikethrough price on
05-02-2026

$ 107.99 USD

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Genuine BMW Solenoid Switch - Bosch
This item fits the following BMW Chassis:
E39,E46,E83 X3,E85

Fits BMW Engines including:
M54,M56

Genuine BMW Lower Alternator Cooling Duct - E46 325i 325xi 330i 330xi...

For vehicles with aerodynamics package

T#:13082

Part#: 12317503969

In Stock

Sale - Save 9% $ 71.99

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

$ 65.72 USD

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Qty

Sale - Save 9%

$ 71.99

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

$ 65.72 USD

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Genuine BMW Air Channel Lower -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M54

Bremmen Parts Outdoor Temperature Sensor / Probe - 65816936953 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:30728992

Part#: 65816936953

In Stock

Sale - Save 24% $ 13.99

This product was last offered at the strikethrough price on
05-03-2026

$ 10.67 USD

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Sale - Save 24%

$ 13.99

This product was last offered at the strikethrough price on
05-03-2026

$ 10.67 USD

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Genuine BMW Terminal Socket - Mcon 2.8 - Multiple BMWs

T#:40627

Part#: 12527567482

In Stock

Sale - Save 50% $ 1.99

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

$ 0.99 USD

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Sale - Save 50%

$ 1.99

This product was last offered at the strikethrough price on
05-02-2026

$ 0.99 USD

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Used in a wide variety of BMW connectors, these terminal sockets can come in handy when working on your wiring components.

Febi Relay - Replaces White/Green

We Price Match - Give Us A Call or Chat!

T#:16375128

Part#: 61368373700

Ships on Nov 25, 2026

Sale - Save 28% $ 15.99

This product was last offered at the strikethrough price on
05-15-2026

$ 11.56 USD

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Qty

Sale - Save 28%

$ 15.99

This product was last offered at the strikethrough price on
05-15-2026

$ 11.56 USD

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This relay is often the fuel pump relay for many BMW models. To ensure the relay is correct for your car please check the pin locations

URO Engine Crankshaft Position Center - BMW

2X Entries Into Our F80 M3 Sweepstakes

T#:52621857

Part#: 12141709616

In Stock

$ 25.99 USD

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$ 25.99 USD

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The URO Parts 020655 Crankshaft Position Sensor offers a cost-effective alternative to expensive OE components without sacrificing quality or longevity.

Starter Motor

10X Entries Into Our F80 M3 Sweepstakes

T#:55030826

Part#: 12412354693

Ships in 6 Business Days

$ 129.99 USD

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$ 129.99 USD

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Wire Pinning Kit - MLK 1.2 Female Jack

T#:55281746

Part#: 125275WRKT

Ships in 8 Business Days

$ 37.40 USD

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$ 37.40 USD

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This Genuine BMW wiring repair kit is the ideal solution to refresh worn-out terminal connections in your Ultimate Driving Machine.

Crankshaft Sensor With Sealing Ring

T#:56507847

Part#: 12141709616

Special Order: No Guaranteed ETA

$ 14.99 USD

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$ 14.99 USD

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Keep your BMW’s engine management system operating at peak performance with this replacement crankshaft position sensor from Febi Bilstein.

Alternator

T#:56544002

Part#: 12317501690

Special Order: No Guaranteed ETA

$ 245.99 USD

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$ 245.99 USD

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Trust Febi Bilstein for clean power output and dependable performance every time you start your engine.

Starter Motor

T#:56724716

Part#: 12412354693

Special Order: No Guaranteed ETA

$ 147.99 USD

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$ 147.99 USD

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This Febi Bilstein starter motor delivers the cranking performance your BMW needs for instant ignition response every time you turn the key.

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