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 F20 F21 114i N13 102HP Engine Control Unit Module ECU DME 7640755 Manual

£284.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9162959

Seat Control Unit BMW X5 E70 E87 E90 E91 E92 Module Memory ECU 9162959

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6950525

BMW 3 6 Series E63 E64 E93 DWA Alarm System Module Unit 65756950525 6950525

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7314798

Trunk Lid Module BMW F31 F15 F16 F36 Control Unit Rear Tailgate Lift 7314798

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. A1698201085

Mercedes W245 ECU Control Unit Sensor Air Module A1698201085

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6814183

Audio Control Panel BMW F20 F30 F31 F32 Operating Unit FBM 6814183

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9253637

BMW 3 5 Series F10 F11 F30 F31 Airbag Control Unit Module 9253637 65779253637

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6887754

Airbag Module BMW F20 F21 F30 F31 F32 ECU ICM Plus Control Unit Air Bag 6887754

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9171347

BMW 5 X5 Series E61 E61 LCI E70 Telematics Bluetooth Control Unit Module 9171347

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9279822

BMW F20 F21 F30 F31 F32 Rear Body Control Unit Module REM 9279822

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7808269

BMW 3 Series E90 E91 LCI Diesel N57 Wiring Loom Harness Engine Gearbox Module

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9133144-1

BMW 5 Series E60 Body Gateway Module KGM LOW LEAR 9133144

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9290013

BMW X3 F25 Footwell Light Control Unit Module ECU FRM III TEMIC 9290013

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6957109

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 6957109

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9292248-1

Display Screen BMW F30 F31 F32 F33 Central Information Display 8,8" 9292248

£123.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6964139

BMW 7 Series E65 E66 E67 Front Control Unit Door Passenger Side 6964139

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6938226-2

BMW 3 Series 2 E90 E91 LCI M3 Wiring Loom Rear Door Left Right 6938226

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7567776

Starter Cable BMW E81 X1 E84 E87 E90 N52 Alternator Battery Wire B 7567776

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6955346

M-Audio Controller BMW E60 E61 E63 E64 Radio Player M-ASK CD Head Unit 6955346

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9150721

BMW E87N ECU Body Control Module H2 Junction Box 9150721

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9418460

BMW G30 G31 PDC Module Parking Assistant Control Unit USS VA03 HIGH 9418460

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9267085

Antenna Amplifier BMW F01 F10 F13 Aeral Diversity 868 MHZ Control Unit 9267085

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9347878

Dashboard Monitor BMW X5 F15 Onboard Central Display Screen 10,25" 9347878

£218.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6938215

BMW 3 Series E90 E91 Front Right O/S Driver Side Door Wire Wiring Loom 6938210

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6781575-1

YAW Rate Sensor BMW E81 E87 E90 E91 Accelerator Speed Module 6781575

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9337879

BMW 1 3 4 Series F20 F21 F30 F31 F34 Power Distribution Fuse Box Front 9337879

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9246502

BMW E87 E90 LCI Car Radio Professional CD Radio Head Unit Bluetooth 9246502

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6951674-CAR

BMW E81 E87 E90 PDC Parking Sensor Ultrasonic Carbonschwarz Black

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7552381

BMW Z4 Series E85 2.0i N46 Wiring Harness Engine Gearbox Module Set 7552381

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6926962

BMW E60 E61 Front Seat Adjustment Switch Right O/S 6926962 6930048

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9382417

BMW 1 2 3 5 F10 F20 F23 F30 Bluetooth Teleservices GPS Telematics Module 9382417

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7561684-1

BMW Z4 E85 2.5i N52 177HP Engine Unit ECU Kit DME 7561684 EWS + Key Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7549284

BMW 1 3 Series E87 E90 118i 318i N46 Wiring Loom Cable Harness Engine Gearbox

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9285508

BMW X5 X6 F15 F16 Power Battery Distribution Junction Box Control Unit 9285508

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9305712

BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V9 Lear 9305712

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8574351

BMW X1 E84 16d 18d 18dX Diesel N47N Engine Control Unit ECU DDE 8574351 Manual

£80.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9170706

BMW 6 Series E63 LCI CCC DVD Sat Navigation System CD Player Head Unit 9170706

£284.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-3448327

BMW X3 E83 LCI Instrument Cluster Speedo Clocks Diesel Manual 3448327

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6855951

BMW F10 F11 F13 F06 VDC Module Rear Suspension Level Control Unit Module 6855951

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9119359

BMW E60 E61 E63 E81 E87 E90 E91 DAB Radio Tuner Module Unit 9119359

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6821139

BMW F10 LCI F20 F21 F30 F31 DAB Bluetooth Head Unit Basic 6821139

£94.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9196669

CD Changer 6 Disc BMW E81 E87 E90 E91 E92 Without Magazine 9196669

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9224673

BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9224673

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8373700-3

BMW E60 E63 E87 E90 E91 5X Relay Make Contact White Green Set 8373700

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9484301

Airbag Module BMW F45 X1 F48 Mini F54 F55 F56 Air Bag Control Unit ECU 9367835

£104.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512498-3

BMW E81 E87 LCI E90 120d 320d N47 177HP ECU Kit DDE 8512498 CAS3 + Key Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7259877

Third Stoplamp Cover BMW F30 F80 M3 Rear Stop Lamp Brake Trim 7259877

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6983536

BMW E60 Light Control Unit Module LCM LM E6X MAN. LWR Lear 6983536

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7514342

BMW E34 Z4 E85 Base B Terminal Point Engine Compartment 7514342

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6886185

ICM Module BMW F20 F21 F30 F31 Crash Control Unit Airbag ECU 6886185 0265020864

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9393675

BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V8 Lear 9393675

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7599881-1

BMW E87 LCI E90 E91 118i 318i Petrol N43 143HP ECU KIT DME 7599881 CAS3 + Key

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-7570550

Manual Gearbox Wiring Harness BMW E81 E87 E90 E91 N43 Loom Cable 7570550

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8092583

Differential Lock Module BMW F10 M5 F80 M3 Rear Axle Control Unit ECU 8092583

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9131710

BMW E60 M-Audio CD Radio Player Head Unit Professional 9131710

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9338800

iDrive Control Unit BMW F10 F20 F30 Touch Controller Module ECU 9338800

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6874817

BMW F20 F21 F10 F11 LCI F30 F32 ACC Front Radar Sensor Module Unit 6874817

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7556390

Engine Wiring BMW E90 E91 E92 335i N54 Automatic Gearbox Loom Cable 7556390

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9344840

BMW 3 4 Series F80 M3 F82 M4 Adapter Lead Fanfare Horn Cable 9344840

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9330058

BMW F15 Top Hifi Audio System AMP Amplifier Harman Kardon 9330058

£664.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8709212

Body Control Module BMW F20 F30 F31 BCM Unit FEM Lear V12 ECU 8709212

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9326437

BMW F30 F31 Wiring Passenger Loom Front Door Cables Harness 9286241

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9253209

BMW E81 E87 LCI E90 E91 N43 DC/DC Wandler Torque Converter Module ECU 9253209

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7559178-3

BMW E60 E61 530i E90 E91 330i N52 258HP Engine ECU Kit DME 7559178 CAS2 2 Keys

£379.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7174403-5

BMW E92 Coupe Rear Light Lamp Plug Socket Wiring Left N/S 6984754

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9339274

CAS4 Module BMW F01 F07 F10 F11 F12 X3 F25 Key Reading Control Unit 9339274

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9224592

BMW 1 Series E87 Footwell Light Module Control Unit PL2 FRM3R 9224592

£141.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6970908

BMW E65 E66 Sensor Front Right Door Airbag O/S 6970908

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8380407

BMW X5 Series E53 Power Distribution Fusebox Cover Fuse Box 8380407

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8385159

BMW 3 X3 Series E46 E83 Battery Cable Holder Mounting B Base 8385159

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9230944

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9230944

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9189850

BMW Z4 Series E89 Convertible Positive Battery Cable Wiring Lead 9189850

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-9188745

BMW X5 X6 Series E70 E71 Cable Loom Wiring Set Seat Passenger's Side 9188745

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9367837

Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Control Unit ECU 9367837

£142.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. rhd-9201489

BMW F01 F02 F10 LCI Operating Unit Centre Console Switch Control Module 9201489

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9267516

BMW F10 Central Gateway Module Control Unit Lear ZGW-02 MID Plus 9267516

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9177209-2

BMW 1 3 X1 E81 E82 E84 E87 E90 E91 E92 2 Radio Business CD Audio Player 9177209

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6913896

BMW Z4 E85 E86 Aerial Antenna Amplifier Module Rod 6913896

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9283429

BMW E90 E91 E92 E93 LCI Radio CD Player Multimedia Head Unit 9283429

£427.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6840519

Negative Lead Battery Cable BMW G11 G30 G31 X3 G01 IBS Wiring Harness 6840519

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8506199

BMW E60 E61 LCI 520d Diesel N47 177HP Engine ECU DDE 8506199 Control Unit

£42.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6985748

BMW 5 Series E60 E61 Centre Console Switch Centre DTC PDC 6985748

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7810860-1

BMW 3 Series E90 E91 E92 E93 LCI N47N Engine Alternator Starter Cable B 7810860

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9227179

BMW 1 Series E81 Body Control Module ECU L2 PL2RR JBBFE Junction Box 9227179

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8638198

BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8625241 Manual

£332.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 2154179

BMW 1 3 5 Series E60 E87 E90 E91 Cable Adapter iPod Connection 2154179

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8612576

BMW X1 F30 F31 LCI Starter Motor Engine 8612576

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9350332

Head Unit BMW F30 F31 F32 X3 F25 Navigation Sat Nav Basic Media Player 9350332

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6840399

Head Unit BMW F20 F21 F22 F30 F31 Radio CD Navigation Business GPS 6840399

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6825541

BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 6825541

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9152262-1

BMW X5 X6 E70 E71 Front Impact Crash Sensor Module 9152262

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9890599

BMW F90 M5 G11 G30 Air Module Crash Control Unit 9890599

£156.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6857701

BMW 1 2 3 F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6857701

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7804110

BMW 5 Series F10 F11 LCI Earth Cable Battery Cable 7804110

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8622032

BMW F20 F21 F30 F31 LCI Control Unit Box Cover Mudguard Flap Cap 8622032

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7248911-1

BMW F20 F21 F22 F30 F31 Fog Light Lamp Wiring Harness Plug Left N/S 7248911

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7552176-11

BMW E87 E90 118i 318i N46 129HP Engine Control Unit ECU Kit DME 7552176 CAS2 Key

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9177978-1

BMW E82 Coupe ECU Body Control Module Junction Box L1 PL2 JBBFE II 9177978

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9163348

BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9163348

£47.95

Free delivery: Jul 14

If paid before 14:00

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