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 X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9229878

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9177985

BMW E88 ECU Body Control Module H3 Junction Box 9177985

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9229875

BMW 3 Series E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359229875 9229875

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9387453

Display Screen BMW F30 F31 F32 F33 On-board Navigation Monitor 8,8" 9387453

£237.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9317872

BMW F20 F21 F22 F30 F31 Alpine CD Champ 2 Radio Player Head Unit 9323784

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8507880

BMW 1 3 Series F20 F21 F30 F31 N47N Wiring Loom Harness Engine Gearbox Module

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9329702

BMW F20 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9329702

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9252331

BMW F10 ECU Body Control Module Junction Box V2 PL6 JBBFE III 9252331

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9317173

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V1 9317173

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9251702

BMW 1 2 3 Series F20 F21 F22 F30 F31 F32 Connecting Wire Sat Nav Champ/Mask-CID

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9286943

BMW 5 F11 Touring Body Control Module ECU Junction Box V7 PL6 JBBFE III 9286943

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7808257

BMW E90 E91 LCI F10 Wiring Harness Engine Glow Module N57 7808257

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9224177

BMW F10 F11 F12 F13 F15 F16 Airbag Sensor Module B-pillar Crash Sensor 9224177

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6953191

BMW 5 Series E61 Touring Diversity Aerial Antenna Suppression Filter 6953191

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9177979

BMW E81 Body Control Module ECU L2 PL2 JBBFE II Junction Box 9177979

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9228495

BMW F07 GT ECU Body Control Module Junction Box V12 PL2 JBBFE III 9228495

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9357991

Head Unit BMW F10 F20 F30 Basis Media Navigation Headunit 9357991

£108.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9374510

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9374510

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7621168

BMW F20 F21 F30 F31 Earth Cable Battery Engine N47N N13 7621168

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9159794

BMW 3 Series E93 Cabrio Airbag Control Unit Module ECU 9159794 65779159794

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9345374

BMW F10 LCI Light Control Footwell Module ECU Unit FRM3 9345374

£61.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6864208

BMW F20 F21 F22 F30 F31 Air Module ECU ICM Control Unit 6864208

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8645325

Alternator BMW F20 F21 F30 F31 LCI F32 F33 F34 Petrol Engine Unit 180A 8645325

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9293305

BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V1 REM 9293305

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6863385

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6863385

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8686084

BMW F30 LCI F15 G11 G30 Accumulator Battery High Voltage 8610469 8610470

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6906914

BMW X5 E53 Battery Cable Negative Wire 6919976

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-6954129

BMW 1 3 Series E87 E90 E92 Front Seat Adjustment Switch Left N/S 6954129

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9204532

BMW E91 LCI ECU LED NSW Light Module Control Unit PL2 FRM II 9204532

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9255048

BMW 1 Series E81 E87 E87N Battery Wire Cable Negative Earth Lead 9255048 6929705

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9207913-1

BMW F20 F21 F22 F30 F31 F32 F33 F36 Fan Motor Relay 9207913

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9302356

Battery Cable BMW F10 F11 X3 F25 Lead Negative IBS Wiring 9302356

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9280186

BMW F10 F11 F01 F02 F03 LCI Air Module Control Module ECU Unit 9280186

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9286785

BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9286785

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9254025

BMW 5 7 X3 X5 X6 Series F10 F11 E70 E71 F01 F02 F25 Rain Light Solar Sensor

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9366409

BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9366409

£80.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9866980

BMW F20 Body Control Unit Module REM Fuse Box 9866980

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9237655-2

BMW E60 E61 E81 E87 E90 F10 Audio Aux In Socket Plug 9237655

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6932006-1

BMW 5 6 Series 1 E60 E61 E63 E64 Battery Cable Holder Mounting B Base 6932006

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9273628

BMW F11 Touring Light Control Footwell Module Unit ECU FRM III 9273628

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7557027

BMW X5 E70 X6 E71 E72 Battery Earth Cable Wiring Loom 7557027

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7369120-2

BMW F30 F31 LCI Plug Socket Rear Right O/S Light Trunk Lid Boot Wiring 6984754

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9152262

BMW X5 E70 X6 E71 Front Crash Impact Sensor Module 9152262

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6858698

BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6858698

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6974916

BMW 1 3 Series E87 E90 CCC CD Professional Navigation System Controller 6974916

£379.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7557809

BMW E87 E90 N45 116i 316i 1.6 Petrol Engine ECU DME 7557809 Manual Transmission

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9237539

BMW 1 2 Series 1 F20 F21 F22 Central Information Display Screen 6,5" 9237539

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6980078

BMW E88 Antenna Amplifier Aerial Diversity Module AMP 6980078

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9350995

BMW F10 F20 F30 Reversing Camera Rear View Control Unit 9350995

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9170721

BMW E90 E91 E92 Professional CCC Navigation System Controller 9170721

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-9313903

BMW 1 Series F20 F21 Rear Bumper PDC Wiring Loom Harness Cables 7964164

£45.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9229878

BMW E91 LCI ECU Body Control Module Junction Box H2 9229878

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9214812

BMW E88 E93 LCI Air Module Control Unit ECU 9214812

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9327318

BMW 1 2 3 4 5 F10 F20 F22 F30 F32 Navigation Sat Nav DAB Head Unit High 9327318

£180.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9239212

BMW E81 E87 E90 LCI Professional Navigation Car Computer CIC 9239212

£189.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9145439

BMW E46 X3 E83 Diesel Auxiliary Heating Electric Flow Heater 9145439

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9160187

BMW 1 Series E81 Body Control Module ECU L2 PL2 JBBFE II Junction Box 9160187

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9205962-1

BMW 3 Series E90 Radio Professional CD Audio Player Control Unit 9205962

£89.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7476046

BMW F20 F21 F30 F31 Mini F55 F56 F57 Fuel Pump Module Control Unit ECU 7476046

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8570849

BMW F20 F21 F30 F31 LCI 116i 118i 318i B38 Petrol Engine Starter Motor 8570849

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3453791

BMW X3 E83 LCI Crash System Control Unit Module ECU 3453791

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9224866

BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Front 9224879

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9177983

BMW E87 LCI Body Control Module Junction Box H2 9177983

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8482940

BMW F30 LCI G11 G30 Battery Cell Supervision Circuit Module Unit 8667593

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6826983

BMW F20 F21 F30 F31 Air Module Control Unit ECU Controller 6826983 0 285 013 626

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6998487

Airbag Module Mini F55 F56 F60 BMW X1 F48 F45 ECU Control Unit Air Bag 6998487

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-9353043

BMW 3 4 Series F30 F31 F32 F33 Apron Scuttle Cover Trim Left N/S 9353043

£16.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9122274

BMW E60 E61 LCI Front Cables Set Wiring PDC Parking Sensor Bumper 9122274

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9286887

BMW X1 E84 Max Brose Footwell Light Module Control Unit ECU Lear FRM PL2 9286887

£80.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3414122

BMW X3 E83 Sensor Air Module Front Impact Crash Sensor 3414122

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 1439674

BMW X5 E53 Base B Positive Battery Terminal Cable Cover Compartment

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 1393415

BMW 3 5 7 Series E36 E38 E90 E91 F10 F11 Change-Over Contact Relay Grey 1393415

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9218702

Rain Sensor BMW F10 F11 Light Solar Fogging Control Unit 9218702

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6917541

BMW 7 Series E65 E66 E67 Diagnosis Interface Media System MOST Jumper 6917541

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9197354

BMW X1 X3 E84 F25 Cigarette Lighter Socket With Cable 9197354

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9204524

BMW 1 Series E87 LCI Footwell Light Control Module ECU LOW PL2 FRM II 9204524

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9189906-1

BMW E88 E93 Air Module Control Unit ECU 9189906

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6906070

BMW X5 E53 Roof Antenna Amplifier Trap Circuit 6906070

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9261598

BMW F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Valencia Orange Metallic B44

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9348935

BMW X1 F45 F48 Mini F55 F56 F60 Air Module Control Unit Module ECU 9348935

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9159806

BMW E87 LCI Footwell Light Control Module ECU LOW PL2 FRM II 9159806

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9274570

BMW F20 Head Unit Navigation GPS Sat Nav Infotainment DAB High F10 F30 9274570

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6901269

BMW X3 Z4 Series E83 E85 E86 Base B Positive Battery Terminal Cover Compartmen

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8616568

BMW F20 F21 F30 F31 Petrol N20 Electrical Fuse Box Cover Lid Panel 8616568

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6950181

BMW E93 Aerial Antenna Amplifier Diversity Control Module 6950181 9187798

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9367376

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9367376

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9232896

Dashboard Monitor BMW X5 X6 E70 E71 Onboard Display Screen 8,8" 9232896

£94.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9234087

BMW E70 F01 F02 F10 F11 Rain / Light / Solar Fogging Sensor Control Unit 9234087

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9173686

BMW X3 Z4 E83 E85 E86 Radio Business CD Player 9173686

£161.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 6860962

BMW X3 F25 ECU ICM Control Unit Air Module Bag Safety 6860962 0265020494

£161.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8572129

BMW 2 3 Series F22 F30 Diesel N47N Wiring Loom Harness Engine Module 8507896

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6994555

Camera Module BMW F10 F20 F12 F87 Reversing Camera Rear View Control 6994555

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9233009

BMW F33 F83 M4 Convertible DWA-Alarm System Module Unit ECU 9233009

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9159311

BMW 5 Series F10 F11 Mini R55 R56 R57 Door Sensor Airbag 9159311

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6836883

PDC Module BMW X3 F25 X5 F15 Mini F55 F56 Parking Distance Control Unit 6836883

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9154358

BMW E81 E87 E90 Hands-Free Electronics Charging Module MULF 9154358

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7849627

BMW F80 M3 F82 M4 Engine Valvetronic Wiring Cable Loom Harness 7849627

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9262753

BMW F30 F31 F80 M3 Dashboard Central Information Display Screen 6,5" 9262753

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7316536

BMW G30 G11 G12 Sunroof Sliding Roof Drive Unit Motor Actuator

£13.95

Free delivery: Aug 28

If paid before 14:00

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