Home
Engine Parts
Electrical System

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

Clear BMW chassis

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.

Sub-Categories

Sort By:

Febi Camshaft Position Sensor - Intake - E39 E46 E53 E60 E83 Z3 Z4 ...

Includes o-ring.

We Price Match - Give Us A Call or Chat!

T#:591868

Part#: 12147539165

In Stock

$ 31.99 USD

Add to Wish List

Qty

$ 31.99 USD

Add to Wish List

Hitachi Camshaft Position Sensor - Intake - BMW M52TU M54

T#:48850072

Part#: 12147539165

In Stock

$ 41.99 USD

Add to Wish List

Qty

$ 41.99 USD

Add to Wish List

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. Uses O-ring # 12 141 748 398 (not included)

Show More Show Less

Febi Camshaft Position Sensor

We Price Match - Give Us A Call or Chat!

T#:368897

Part#: 12147518628

Ships in 2 Business Days

$ 48.99

This product was last offered at the strikethrough price on
09-01-2026

$ 40.99 USD

Add to Wish List

Qty

$ 40.99 USD

Add to Wish List

A faulty cam sensor can lead to issues like difficulty starting and stalling at low speeds. Replacing the cam sensor often resolves many drivability problems. Requires O-ring #12141748398 (not included).

Show More Show Less

Oil Pressure Switch (fits most BMWs)

2X Entries Into Our F80 M3 Sweepstakes

T#:363

Part#: 12617568480

In Stock

$ 7.99

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

$ 5.39 USD

Add to Wish List

Qty

$ 5.39 USD

Add to Wish List

Having your oil pressure light come on can mean very serious problems. Or it could just be this switch that fails several times over a car's lifespan. By no means should you ignore the warning light but replacing this sensor could be the actual culprit. The other problem with this switch is that oil can leak past its seal. With the oil under a lot of pressure at this point, the oil loss can be a serious concern. It's a simple replacement when doing most oil change work.

This Oil Pressure Switch fits the following BMWs:
1985-1991 E30 318i, 318is, 325e, 325i, M3
1992-1999 E36 318i/is, 325i/is, 328i/is, 323is, M3
1992-1997 E31 840i, 850i
1988-1994 E32 735i, 735iL, 740i, 740iL
1989-1995 E34 525i, 530i, 535i, 540i, M5
1995-2001 E38 740i, 740iL, 750i, 750iL
1996-2002 Z3 Roadster/Coupe 1.9, 2.3, 2.5, 2.8, 3.0, 3.2
1997-2003 E39 525i, 528i, 530i, 540i, M5
1999-2005 E46 323, 325, 328, 330, M3
2000-2003 Z8 roadster
2001-2006 E53 X5 X5 3.0i, X5 4.4i, X5 4.6is, X5 4.8is
2002+ E65/E66 745i, 745li, 750i, 750li, 760i, B7 Alpina
2003+ Z4 Roadster/Coupe Z4 2.5, 3.0, 3.0si
2004+ E60 525i, 530i, 535i, 545i, 550i, M5
2005+ E63/E64 645Ci, 650i, M6
2005+ E83 X3 X3 2.5, X3 3.0
2006+ E90/E92 325, 328, 330, 335
2007+ E70 X5 X5 3.0i, X5 4.8i

Show More Show Less

Febi Relay - Replaces White/Green

We Price Match - Give Us A Call or Chat!

T#:16375128

Part#: 61368373700

Ships on Feb 11, 2027

Sale - Save 28% $ 15.99

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

$ 11.56 USD

Add to Wish List

Qty

Sale - Save 28%

$ 15.99

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

$ 11.56 USD

Add to Wish List

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

Febi Outdoor Temperature Sensor / Probe

We Price Match - Give Us A Call or Chat!

T#:382731

Part#: 65816936953

Ships in 2 Business Days

$ 20.79

This product was last offered at the strikethrough price on
10-21-2026

$ 19.99 USD

Add to Wish List

Qty

$ 19.99 USD

Add to Wish List

Common fix for incorrect OBC temperature readings

Hitachi Camshaft Position Sensor - E39, E46, E53, E60, E63, E64, E65,...

T#:48850055

Part#: 12147518628

Ships in 3 Business Days

$ 71.99 USD

Add to Wish List

Qty

$ 71.99 USD

Add to Wish List

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.

Show More Show Less

Febi Alternator - 12317501690 - E46, E39 525i 528i 530i, E53 X5 ...

T#:56544002

Part#: 12317501690

Special Order: No Guaranteed ETA

$ 245.99 USD

Add to Wish List

Qty

$ 245.99 USD

Add to Wish List

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

Febi Crankshaft Sensor With Sealing Ring - 12141709616 - E36, E46, E3...

T#:56507847

Part#: 12141709616

Special Order: No Guaranteed ETA

$ 14.99 USD

Add to Wish List

Qty

$ 14.99 USD

Add to Wish List

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

Febi M54 Starter Motor - 12412354693 - E46, E39, E60, E83

T#:56724716

Part#: 12412354693

Special Order: No Guaranteed ETA

$ 147.99 USD

Add to Wish List

Qty

$ 147.99 USD

Add to Wish List

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

Hitachi Crankshaft Position Sensor - BMW M52 S52 M54

T#:48815470

Part#: 12141709616

Back Ordered

$ 32.99 USD

Add to Wish List

Qty

$ 32.99 USD

Add to Wish List

NOTE: Does not include o-ring seal - see BMW # 12141748398 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.

Show More Show Less

Select Vehicle

Category

Electrical System

Brand

View All Brands

Price

Special Offers

Shipping