What is the construction and purpose of automotive electrical systems?

Automotive electrical systems are a set of components responsible for starting, charging, powering consumers, and controlling vehicle electronics. They include, among others, the battery, alternator, starter, fuses, relays, controllers, and wiring harnesses. These components are located in different parts of the car and work together through connectors and signal buses.

What are automotive electrical systems used for?

Automotive electrical systems are used to supply energy and transmit control signals to vehicle components. Thanks to them, it is possible to start the engine, charge the battery, and operate lights, windows, air conditioning, and safety systems. A fault in one circuit can affect not only comfort but also the correct operation of other modules.

What role does the wiring harness play in a car?

The wiring harness is an organized set of wires, covers, and connectors that connects individual consumers and controllers in the vehicle. It is used to transmit power, ground, and signals between modules. Its construction depends on the body version, equipment, and mounting location, so when replacing it, you must compare the wire routing, plug type, and number of pins.

How to choose an electrical part for a specific car?

The safest way is to compare the OEM number, manufacturer number, connector type, and mounting location. It is also worth considering the engine version, year of manufacture, body type, and equipment, as the same model may have different variants of the alternator, starter, or controller. In practice, verification by VIN is very helpful.

What symptoms indicate a problem with the electrical system?

Typical signals include difficulty starting, flashing warning lights, dimming lights, unstable charging, or the failure of selected consumers. In some cases, controller errors, air conditioning malfunctions, or periodic power outages also occur. Symptoms must always be linked to a specific circuit and cooperating component.

How to take care of automotive electrical systems in daily use?

The basis is regular inspection of the battery condition, terminals, ground wires, and charging. It is also good to check the tightness of housings, the condition of harness insulation, and the cleanliness of contacts exposed to moisture. A quick reaction to the first symptoms of voltage drops or electronic errors makes it easier to avoid a major failure.

Automotive electrical systems

At Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.

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BMW 3 Series E91 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6977724

£112.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9259730

BMW E81 E82 E84 E87 E89 E90 E91 E92 Radio Business CD 9259730

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9117831

Negative Battery Lead BMW F45 F46 X1 F48 IBS Minus Pole Cable 9117831

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A323C8

BMW F40 Fuse Relay Power Distribution Box Unit 5A323C8

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7811700-7

BMW E90 E92 320d N47 177HP ECU KIT DDE CAS3 + Key 7811700 Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7410612

BMW F34 GT Tailgate Lift Module Rear Boot Trunk Lid Control Unit ECU F005V01708

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6921982

BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8793254

Door Wiring BMW X3 G01 F97 X4 G02 F98 Cable Harness Rear Left Right N/O/S

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8510281

Engine Wiring BMW F30 F31 F32 F36 330d 430d N57N Loom Harness Cable 8510281

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6840269

Antenna Amplifier BMW X4M F98 G02 Radio Signal FM2 DAB Amplifier Module 6840269

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. E93 Wiring Loom Set PDC Rear-1

BMW 3 Series E93 Convertible Cabrio Wiring Loom Set PDC Rear Bumper Set

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8574091-3

BMW F10 520d N47N 184HP ECU Kit Control Unit DDE 8574091 CAS4 + Key

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9187533-1

BMW E82 ECU Body Control Module Junction Box L1 PL2 JBBFE II 9187533

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9231178

BMW F22 F30 F80 M3 F32 Radio Antenna Amplifier AM FM 9231178

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9246831

BMW F10 Front Bumper PDC Wiring Parking Sensor Loom Harness 9246831

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9210120

BMW F07 GT Door Wiring Loom Cable Harness 9210120

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8506442

BMW E81 E82 E87 LCI E88 123d Petrol N47S 204HP ECU Engine DDE 8506442 Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9175653-2

BMW E82 Xenon Footwell Light Control Module Unit PL2 FRM II Lear 9175653

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8663284

BMW F20 F30 F31 LCI B38 ECU Basic DME Control Unit Automatic Gearbox 8663284

£284.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7387090

BMW F33 Neck Heater Warmer Control Module Unit ECU 7387090

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8574095-6

BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8574095 Key FEM Automatic

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9252156

BMW F12 Convertible Folding Top Roof ECU Module Control Unit CVM 9252156

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9321016-1

BMW F10 F11 LCI On-Board Screen Central Information Display 10,25" 9321016

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A94F69

BMW G20 Air Conditioning Air Con A/C Control Unit Module 5A94F69

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9224177-1

BMW F10 F11 F12 F13 F15 F16 Air Module Crash Sensor 9224177

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9231283-DSB1

BMW X5 E70 F10 PDC Parking Sensor Ultrasonic SET X2 Tiefseeblau - A76 A899231283

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7811701-4

BMW E87 LCI E90 118d 318d Diesel N47 Diesel ECU KIT DDE 7811701 + CAS3 + Key

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8380409

BMW X5 E53 Fuse Distribution Box Relay Board 6907395 8380409 6909721

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9301309

Air Conditioning Unit BMW F20 F21 F30 F31 Control Unit A/C Module 9301309

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9315151

BMW X3 F25 Fuse Box Power Distribution Control Unit Box Rear 9315151

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9226347

BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9226347

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9133913

BMW Z4 E89 Roadster Convertible HiFi Speaker System Amplifier 9133913

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6963014

BMW E60 E61 E63 Passenger Side Door Air Module Control Unit ECU 6963014

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8598806-2

BMW X3 F25 20dX Diesel B47 190HP Engine Module ECU Kit DDE 8598806 Key CAS4

£360.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8663284-2

BMW F20 LCI 118i F30 LCI 318i B38 136HP ECU Kit DME 136HP 8663284 Key Lock FEM

£427.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9454245

Differential Locking Module BMW F90 M5 G20 Rear Axle Control Unit ECU 9454245

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9377150

BMW 1 Series F20 Bluetooth Control Module Unit TCB ECE 9377150

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8507899

BMW F31 N47N 320d Engine Wiring Harness Module Diesel 8507899 8507896

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-8516715

BMW F02 Engine Wiring Automatic Gearbox Harness Loom Cable 730Ld N57 8516715

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6851242

ICM Module BMW F01 F02 Integrated Chassis Management QL ES Control Unit 6851242

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6915047

BMW E46 E39 E38 E83 E53 E85 E86 Control Unit Voice Input System Module 6915047

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9207361

Hands Free BMW E81 E87 LCI E90 Electronics Charging MULF2 9207361

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9307421

Camera Control Unit BMW F20 F21 F30 F31 KaFAS 2 Camera Module ECU 9307421

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6920758

BMW 3 5 7 X5 Series E38 E39 E46 E53 GPS Navigation System Computer Unit 6920758

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9335291

BMW F20 Driver Side Door Cable Harness Wiring 9335291

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-8736361

Head Up Display BMW F32 F33 F36 Dashboard Car System Screen 8736361

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9276016

BMW F11 Aerial Antenna Amplifier Diversity 868 MHZ 9276016

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6927311

BMW E60 Front Seat Control Unit Module Controller ECU 6927311

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9111165-PB2

PDC Sensor BMW E81 E82 E87 E88 E90 E91 Ultrasonic Parking SET X4 Platinbronze

£42.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7541335-8

BMW X3 E83 M54 2.5i 192HP Engine Control Unit ECU DME 7541335 Manual

£113.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9319493

Air Module Unit BMW F10 F11 F30 F31 F25 F12 F13 X3 F25 ECU Control 9319493

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A0BD89

BMW F40 Power Distribution Fuse Box LIN Control Unit Module 5A0BD89

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6930006

BMW X5 3 Series E70 E90 Clamping Ring B+ Transition Battery Cable 6930006

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-8510898

BMW F01 730d N57 Engine Wiring Harness Loom Cable Automatic Gearbox 8510898

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7794908

Preheater System Lead BMW E87 E90 E91 Diesel 7794908

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8577764-1

BMW F10 F11 520d Diesel N47N 184HP ECU Kit DDE 8577764 + Key + CAS4 Automatic

£332.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6835155

BMW 1 2 3 Series F40 F44 G20 Radio Antenna Amplifier Suppression Filter 6835155

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7438142

BMW F32 Exterior Wing Mirror Heated Harness Control Module Right O/S 7438142

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6808575

BMW 2 Series F45 Module ECU Control Unit FEM BDC 6808575

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A374F9

BMW F40 Radio CD Player Head Unit Navigation Sat Nav CIC Alpine 5A374F9

£379.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8843416

BMW G30 Battery Cell Module Supervision Circuit Control Unit 8843416

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7203228-2

BMW F11 Trunk Lid Boot Tailgate Lamp Plug Socket Wiring Rear Right O/S 8377240

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8576341-10

BMW F20 F21 F30 F31 118d 318d 143HP N47N Engine ECU Kit DDE 8576341 Manual

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6934095

BMW 7 Series E65 E66 Door Wiring Harness Rear Right Left N/O/S

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8506566-5

BMW E90 E91 LCI 320d ed N47N 163HP Engine ECU Kit DDE 8506566 CAS3 Key Manual

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-9190874-1

BMW E63 E64 Head-Up Display Hud Projector Dash Screen Info Control Unit 9190874

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7644747

BMW F10 F11 F30 Petrol N20 ECU DME Engine Control Unit Module 7644747 Manual

£332.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6927000

BMW E63 E64 Amplifier Holder Catch Bracket Video Module 6927000

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9196935

Seat Module BMW X1 E84 E87 E90 E91 Seating Control Unit ECU 9196935

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7075948

BMW 5 7 Series E60 E61 E65 E66 Front Driver Seat Angle Adjustment Drive 7075948

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8578945-2

BMW F20 F21 F30 F31 116d 316d N47N 116HP ECU Kit DDE 8578945 Key FEM Lock Manual

£284.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. rhd-7812440

BMW X1 Series E84 Diesel N47 N47S Wiring Loom Harness Engine Gearbox Module

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7391400

BMW F45 Active Tourer LED Module Cornering Light Front Right O/S Unit 7391400

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6932399

BMW X5 E53 Cable Loom Plug Socket Connector Wiring Harness 6932399 6932396

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9264568-1

BMW E82 LCI Body Control Module Unit PL2RR JBBFE IIIR L1 9264568

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6886186

BMW F20 F21 F22 F30 F31 Hydro Unit DSC ICM Fastening Control Module ECU 6886186

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6913826

BMW 7 Series E65 E66 Front Bumper PDC Loom Cables Wiring Set 6913826

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9139868-1

BMW X3 E83 LCI X5 E70 LCI PDC Parking Ultrasonic Sensor Black 9139868

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6891679

VDC Module BMW F80 M3 X5 F15 Air Suspension Level Control Unit 6891679

£89.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9474776

KaFAS Camera BMW F10 F20 LCI F30 Mini F55 F56 Control Unit ECU Module 9474776

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9380334

BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK 9380334

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9267201

BMW 1 Series E81 Body Control Module L2 PL2RR JBBFE IIIR 61359267201 9267201

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8621016

BMW G11 G12 G20 HV Accumulator Battery Negative Ground Cable Wiring Plug 8621016

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7118854

BMW Z4 Series E85 Cable Loom Wiring Harness Rear Window Heating 7043906

£42.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8379941

BMW X5 Series E53 Interior Roof Trim Cover Ultra Sonic Module Alarm 8379941

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7809680

Engine Wiring BMW F10 F11 N57 N57S Loom Cable Harness Injector Module 7809680

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9117847

PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 9117847

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9263468

BMW E81 E87 E90 E91 LCI Professional CD Radio Bluetooth 9263468

£161.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9499002

BMW F20 F21 F22 F30 F31 F32 F36 Fuse Box Body Control Unit Module REM V2 9499002

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6868873

Suspension Control Module BMW X5 F15 F20 F30 VDC Unit 6868873

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9151864-1

HiFi Speaker BMW X5 E70 X6 E71 X3 E83 Top HiFi Sound Unit Door Card 6949734

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7810950-1

BMW E60 E61 LCI 530d M57N2 235HP Engine ECU KIT DDE 7810950 CAS3 + Key Automatic

£237.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9284282

BMW F10 Body Control Module ECU Junction Box PL6 JBBFE III V2 9284282

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9261614-2

PDC Sensor BMW F20 F21 F22 Rear Bumper Ultrasonic Glacier Silver SET x4 9261614

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8621020

BMW G20 G30 G11 G12 HV Accumulator Battery Positive Cable Wiring Plug 8621020

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7330822

BMW F01 F02 F10 LCI G30 Front Seat Support Trim Cover Ivory White 7317453

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7590203

BMW X5 X6 E70 E71 Gearbox Emergency Release Unlocking Device Automatic 7590203

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7111904

BMW X5 E53 Front Driver Seat Memory Electric Wiring Loom Harness 7111904

£32.95

Free delivery: Jul 14

If paid before 14:00

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