BMW Electrical Sensors, Switches, & Relays for BMW 3 Series E93 (2007-2013)

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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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New Alternator - 180 Amp
New Alternator - 180 Amp
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:26438187
Part#: 12317558220
In Stock
Sale - Save 10% $ 294.99

This product was last offered at the strikethrough price on
06-30-2026

$ 265.49 USD
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$ 294.99

This product was last offered at the strikethrough price on
06-30-2026

$ 265.49 USD
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Camshaft Position Sensor - Priced Each
Camshaft Position Sensor - Priced Each
Two required per engine, may be replaced separately as needed.
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:27105154
Part#: 13627525014
In Stock
Sale - Save 17% $ 41.99

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

$ 34.84 USD
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Sale - Save 17%
$ 41.99

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

$ 34.84 USD
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Alternator - 180amp
Alternator - 180amp
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:26438185
Part#: 12317837981
In Stock
Sale - Save 15% $ 304.99

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

$ 259.24 USD
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$ 304.99

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05-03-2026

$ 259.24 USD
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BMW E6X / E8X / E9X - N52 Replacement Starter Kit
BMW E6X / E8X / E9X - N52 Replacement Starter Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15777314
Part#: SR0492NKT2-KT
In Stock
Sale - Save 4% $ 284.99

This product was last offered at the strikethrough price on
08-14-2026

$ 273.79 USD
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$ 284.99

This product was last offered at the strikethrough price on
08-14-2026

$ 273.79 USD
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Is your car having trouble starting? Does your starter click when you turn the key? Sounds like it's time for a new starter motor! Includes new starter with no core charge, intake gaskets, throttle body gasket and hardware.
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Engine Oil Temperature Sensor
Engine Oil Temperature Sensor
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:36777927
Part#: 13627580635
In Stock
Sale - Save 21% $ 26.99

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

$ 21.21 USD
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$ 26.99

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

$ 21.21 USD
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Eccentric Shaft Sensor
Eccentric Shaft Sensor
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:34114242
Part#: 11377524879
In Stock
Sale - Save 20% $ 165.99

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

$ 132.18 USD
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$ 165.99

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

$ 132.18 USD
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MSD80 Replacement Mosfets - Pack of 10
MSD80 Replacement Mosfets - Pack of 10
For Vehicles With MSD80 DME Only
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:28537553
Part#: MSD80FIX
Ships on Nov 2, 2026
Sale - Save 11% $ 37.99

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

$ 33.84 USD
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$ 37.99

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05-03-2026

$ 33.84 USD
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Are you tired of worrying about your MSD80 DME's Mosfets failing? Why replace your MSD80 with a costly MSD81 and worry about paying for a new tuning license, when you can simply repair your MSD80 DME at home to last for many years to come! Included in this kit: -10 MSD80 Replacement Mosfets Applicable Only to Vehicles Equipped With the MSD80 DME (not MSD81). Bremmen Parts offers an OE-like replacement to remedy the following DME-related codes: 30BA - DME Digital Motor Electronics, Internal Failure 30BB - DME Digital Motor Electronics, Internal Failure 29D9 - Misfire with Low Fuel Level 29CC - Misfire Multiple Cylinders 29CD - Cylinder 1 Misfire 29CE - Cylinder 2 Misfire 29CF - Cylinder 3 Misfire 29D0 - Cylinder 4 Misfire 29D1 - Cylinder 5 Misfire 29D2 - Cylinder 6 Misfire
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Bav Auto Intake Air Temperature Sensor - BMW E9X M3 S65
Bav Auto Intake Air Temperature Sensor - BMW E9X M3 S65
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:639824
Part#: 13627792203
Ships on Jan 11, 2027
$ 24.99 USD
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$ 24.99 USD
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This sensor provides your BMW's control unit with intake temperature readings in order to run optimally in any condition. If this sensor has failed, your BMW may be suffering from more performance loss than you realize. Replace your IAT sensor to ensure proper temperature readings and restore lost performance! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Valvetronic Camshaft Adjuster replacement kit
Valvetronic Camshaft Adjuster replacement kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15677492
Part#: 11127556161-KT
In Stock
Sale - Save 19% $ 220.99

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

$ 179.28 USD
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Sale - Save 19%
$ 220.99

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

$ 179.28 USD
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Valv-tronic adjuster unit, Changes the the timing shaft to adjust the valve timing.
Bosch Starter Motor With Hardware
Bosch Starter Motor With Hardware
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:56110332
Part#: SR0492NKT4
In Stock
New Item
$ 273.99

This product was last offered at the strikethrough price on
08-14-2026

$ 261.99 USD
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$ 261.99 USD
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At the core is a brand-new Bosch Starter Motor, engineered to withstand extreme operating conditions while delivering immediate cranking speed. This kit includes also the required Genuine BMW Aluminum Mounting Screw Set.
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Bav Auto Crankshaft Position Sensor - Multiple BMWs
Bav Auto Crankshaft Position Sensor - Multiple BMWs
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:639826
Part#: 13627525015
Special Order: No Guaranteed ETA
$ 67.99 USD
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$ 67.99 USD
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This crankshaft position sensor provides the ECU with the engine speed signal. It is mounted in either the engine block or the bell housing of the transmission on most cars. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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3 Pin Connector
3 Pin Connector
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:33412931
Part#: 12527519996
In Stock
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
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$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
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Includes connector housing with terminals and seals. Commonly used for the pencil-style ignition coil connector.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 12527519996 - Commonly used for the pencil-style ignition coil connector.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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LK-2M 2 Pin Connector Package
LK-2M 2 Pin Connector Package
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:40072446
Part#: LK2M
In Stock
Sale - Save 29% $ 6.99

This product was last offered at the strikethrough price on
06-14-2026

$ 4.94 USD
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Sale - Save 29%
$ 6.99

This product was last offered at the strikethrough price on
06-14-2026

$ 4.94 USD
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Includes connector housing with terminals and seals. Commonly used for the engine oil pressure switch.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Bremmen Parts Outdoor Temperature Sensor / Probe - 65816936953
Bremmen Parts Outdoor Temperature Sensor / Probe - 65816936953 ...
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
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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3 Pin Connector
3 Pin Connector
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:33412925
Part#: 12521433915
In Stock
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up
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Sale - Save 25%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
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Includes connector housing with terminals and seals. Commonly used for the engine oil level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 12521433915 - Commonly used for the engine oil level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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2 Pin Connector
2 Pin Connector
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:33412928
Part#: 12521427615
In Stock
Sale - Save 25% $ 7.99

This product was last offered at the strikethrough price on
06-14-2026

$ 5.99 USD
Free Shipping on orders $49 and up
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Sale - Save 25%
$ 7.99

This product was last offered at the strikethrough price on
06-14-2026

$ 5.99 USD
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Includes connector housing with terminals and seals. Commonly used for the engine oil pressure switch. ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need. Each connector includes an additional terminal in case one becomes lost or damaged during installation. *OEM cross reference PN# 12521427615 - Commonly used for the engine oil pressure switch. Please reference the original part number from the existing connector to confirm fitment, before ordering. Suggested tools: Suggested crimping pliers: T#387193 Wire De-pin tools: 12pc De-Pin Tool Set - T#386379 23pc De-Pin Tool Set - T#641943
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2 Pin Connector
2 Pin Connector
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:33412932
Part#: 61132359999
In Stock
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 25%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up
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Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 61132359999 - Commonly used for the coolant level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

Show More Show Less
Positive Cable Battery Connection Pole
Positive Cable Battery Connection Pole
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:57616371
Part#: 61129217031
Ships on Jan 11, 2027
New Item
Sale - Save 10% $ 135.99

This product was last offered at the strikethrough price on
10-08-2026

$ 122.39 USD
Free Shipping on orders $49 and up
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Sale - Save 10%
$ 135.99

This product was last offered at the strikethrough price on
10-08-2026

$ 122.39 USD
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