BMW Electrical Sensors, Switches, & Relays for BMW X5 M S63 4.4L

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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 B46 B48 Motiv ReFlex Plug-n-Play Ethanol Sensor Harness
For Vehicles With Motiv ReFlex Unit Currently Installed Only
Motiv Motorsports - Corporate Logo
T#:22723690
Part#: 101-0212
In Stock
$ 49.00 USD
Free Shipping on orders $49 and up
$ 49.00 USD
Free Shipping on orders $49 and up

BMW B46 B48 Motiv ReFlex Plug-n-Play Ethanol Sensor Harness simplifies the integration of an ethanol content sensor into your BMW's Re|Flex system. This harness is designed to enhance your vehicle's performance by scaling the sequential port injection based on real-time ethanol content, eliminating the need for manual adjustments. Key benefits include:

  • Effortless Installation: Plug-n-play design makes it easy to connect an ethanol content sensor without extensive modifications.
  • Real-Time Adjustments: Allows for automatic scaling of port injection based on real-time ethanol content, optimizing engine performance.
  • Seamless Integration: For CANbus integrated vehicles, it facilitates integration with the factory DME/ECU (pending feature release by tuning platforms).
  • No Manual Flashes Required: Removes the need for ground disconnection or map switching on your port injection controller.

Please note that the ethanol sensor is not included with this harness.

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Motiv Motorsports - Corporate Logo
T#:29101684
Part#: 900.1001
In Stock
$ 729.00 USD
Free Shipping on orders $49 and up
The motive ReFlex+ Control Unit is an advanced I/O integration module that allows precise control of aftermarket components and sends data to the factory DME (ECU) via CANbus communication, expanding performance tuning capabilities. This control unit allows for precise control of fuel pumps, methanol injection kits, nitrous kits, boost controllers, relay triggers, port injection systems, flex fuel systems, and more. Supporting sequential port injection for up to eight injectors and real-time monitoring of injectors, this unit is a great choice for precise control of fuel delivery to your engine.
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URO Manifold Absolute Pressure (MAP) Sensor - BMW N54 N20 N26 S55 S63...
For vehicles with a production date from 07/2018+
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:36032311
Part#: 13628644433
In Stock
$ 72.99 USD
Free Shipping on orders $49 and up
$ 72.99 USD
Free Shipping on orders $49 and up
The MAP sensor, or manifold absolute pressure sensor, works with the engine computer to set the fuel curve and give readings to the engine computer. If yours is faulty, it may cause improper running, rich or lean fuel curves, or other general performance issues. Replace yours with this unit to keep your engine running at full potential. For N54 applications, you will need adapter harness T#583821- This TMAP sensor is typically used in high-boost applications for the N54
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Motiv Motorsports - Corporate Logo
T#:29201083
Part#: 900.1016
In Stock
$ 95.00 USD
Free Shipping on orders $49 and up
A flying lead harness is a wiring harness that is unterminated at one end and has an excess length of wire so that installation can be customized by the end user. That makes this section of the ReFlex+ Install Harness truly universal. On one end, this harness has an 8-pin connector to plug into any one of our ReFlex+ Main Injector Harnesses. The other end of each wire is unterminated and will be connected to the appropriate sensor, ground, or power supply based on installation instructions. Each harness has a wire for: Switched +12v Input w/ inline fuse +5v Input Ground Can HI Can Lo Cam Sensor Signal Crank Sensor Signal Map Sensor Signal
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Oil Pressure Switch - M12x1.5
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373033
Part#: 12611710509
In Stock
$ 8.39 USD
Free Shipping on orders $49 and up
Replacement oil pressure switch found on most BMWs
Electrical Connector - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:367145
Part#: 61132359999
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
2 pin used in many locations on late model BMWs

Outdoor Temperature Sensor / Probe
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373239
Part#: 65816905133
In Stock
$ 13.99 USD
Free Shipping on orders $49 and up
Common fix for incorrect OBC temperature readings
Temperature Sensor
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:37892090
Part#: 13621433076
In Stock
$ 10.34 USD
Free Shipping on orders $49 and up
Temperature sensor for monitoring coolant and oil


Fluid Level Sensor
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:369510
Part#: 17137524812
In Stock
$ 10.59 USD
Free Shipping on orders $49 and up
This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level
URO Crankshaft Position Sensor - BMW N63N S63N S63R
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:43750199
Part#: 13627628741
In Stock
$ 55.99 USD
Free Shipping on orders $49 and up
Crank position sensors report the position of the crankshaft to the ECU/DME to control iginition timing. A bad crank position sensor will commonly cause a no-start situation as faulty readings could lead to engine damage.
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Motiv Motorsports - Corporate Logo
T#:29234300
Part#: 910.1012
Ships in 4 Business Days
$ 499.00 USD
Free Shipping on orders $49 and up
The ReFlex LITE is a simple yet elegant fueling solution for direct injected vehicles that need to add more fuel by installing a port injection system to keep up with their modifications to the vehicle. Using the same precise form of sequential fuel injection as the ReFlex+, the ReFlex LITE brings a more affordable fuel controller without the additional features of the ReFlex+. Sequential port fuel injection for v-8 engines Firmware and maps are available for multiple vehicles FREE on our website High resolution calibration tables 24x24 cell RPM vs MAP 0-48psi MAP pressure range 250RPM increments up to 8500RPM High resolution datalogging Fault detection status available to monitor in TunerPRO RT Compact in size Universal fitment Simple installation Please Note: The ReFlex LITE does NOT have the ability to analyze and transmit ethanol content to an ECU.
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Bushing Contact With Wire Lead - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:14783536
Part#: 61130005199
In Stock
$ 3.99 USD
Free Shipping on orders $49 and up
Motiv Motorsports - Corporate Logo
T#:29234314
Part#: 900.1014
Ships in 4 Business Days
$ 295.00 USD
Free Shipping on orders $49 and up
Required when installing a Motiv ReFlex Lite to your V8 powered BMW! Includes x8 injector leads and direct, plug-in adapter to the ReFlex Lite Control Unit!
Hitachi - Corporate Logo
T#:48815454
Part#: 13627525014
Ships in 6 Business Days
$ 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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