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

£13.95

Free delivery: Jul 14

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: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9227184

BMW 1 Series E87 LCI ECU Body Control Module Unit H2 PL2RR JBBFE IIIR 9227184

£23.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9196936

BMW 1 3 Series E87 E90 E91 E92 Seat Control Unit Module ECU 6926371

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9374510

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

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8798036

Head Unit BMW F20 F21 F32 F36 LCI Radio Media GPS Sat Navigation Unit 8798036

£113.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9350995

BMW F10 F20 F30 Reversing Camera Rear View Control Unit 9350995

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9170721

BMW E90 E91 E92 Professional CCC Navigation System Controller 9170721

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8378113

BMW Z4 Series E85 E86 Interior Fuse Box 8378113

£16.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9264916

BMW E82 E88 E92 E93 LCI Control Unit Airbag ECU NO CRASH DATA 9264916

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9229878

BMW E91 LCI ECU Body Control Module Junction Box H2 9229878

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9214812

BMW E88 E93 LCI Air Module Control Unit ECU 9214812

£23.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9116445

BMW Z4 E85 E86 Basic Body Control Unit Module GM5 Star12 LOW 9116445

£142.95

Free delivery: Jul 14

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: Jul 14

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: Jul 14

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: Jul 14

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: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9177983

BMW E87 LCI Body Control Module Junction Box H2 9177983

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9240351

BMW X5 F20 F21 F30 E70 LCI Trunk Lid Reversing Camera Rear 9240351

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8482940

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

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6998487

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

£132.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9302356

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

£23.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9381101

BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9381101

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3414122

BMW X3 E83 Sensor Air Module Front Impact Crash Sensor 3414122

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 1439674

BMW X5 E53 Base B Positive Battery Terminal Cable Cover Compartment

£13.95

Free delivery: Jul 14

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: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9197354

BMW X1 X3 E84 F25 Cigarette Lighter Socket With Cable 9197354

£13.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 8586536

BMW F10 F30 F32 LCI 335dX 435dX 535dX N57Z 313HP Control Unit ECU DME 8586536

£132.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9152262

BMW X5 E70 X6 E71 Front Crash Impact Sensor Module 9152262

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6906070

BMW X5 E53 Roof Antenna Amplifier Trap Circuit 6906070

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9348935

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

£113.95

Free delivery: Jul 14

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: Jul 14

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: Jul 14

If paid before 14:00

Part no. 6950181

BMW E93 Aerial Antenna Amplifier Diversity Control Module 6950181 9187798

£13.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9352864

FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9352864

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9290989

BMW F30 F31 F32 Bluetooth Player Unit Radio Professional CD 9290989

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9241005

BMW 3 Series E90 LCI Footwell Light Control Module LCM LED Basis 9241005

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9287433

BMW F21 F22 Wiring Loom Door Drivers Side Front Right O/S 9340973

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9239212

BMW E81 E87 E90 LCI Professional Navigation Car Computer CIC 9239212

£189.95

Free delivery: Jul 14

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: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9167198

BMW 1 3 Series E81 E87 E92 E93 Towing Tow Bar Trailer Hook Module Control Unit

£70.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6994555

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

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8686084

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

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9233009

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

£13.95

Free delivery: Jul 14

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: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9154358

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

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9147191

BMW E60 E81 E87 E90 E91 E92 CAS 3 ECU Control Unit Key Reading Module 9147191

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7851568

BMW F80 M3 F82 M4 Actuator Drive Exhaust Flap 7851568

£61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7849627

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

£18.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 9123739

BMW 1 3 5 7 Series E81 E87 E90 E91 E92 F01 USB USB Hub Audio Interface Module

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7811700-1

BMW 1 3 Series E81 E87 E90 E91 120d 320d N47 Engine Control Unit ECU DDE 7811700

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9282420

BMW 1 3 5 Series F10 F20 F30 Reversing Camera Rear View Control Unit 9282420

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9264573

BMW 3 Series E91 LCI ECU Body Control Module Junction Box H2 9264573

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 130002618

BMW X3 X5 E53 E83 Front Seat Adjustment Actuator Drive CRH 1-1968-01

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9149242

BMW 5 6 Series E60 LCI E63 CHAMP Business System Controller CD Player 9149242

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9145350

BMW X3 E83 LCI EWS IV 4.4 Control Unit Module ECU 9145350

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9218702

Rain Sensor BMW F10 F11 Light Solar Fogging Control Unit 9218702

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9362848-1

Telematics Module BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Unit 9342881

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7800167

BMW E70 LCI E90 E91 LCI F10 F11 N57 Lead Preheater Wiring System Diesel 7800167

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9395176

FEM Module BMW F20 F22 F30 F32 ECU Control Unit Fuse Box 9395176

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9298945

BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9298945

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7558220

BMW E82 E90 E91 E92 N54 135i 335i Alternator Generator 180A 7558220

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9229880

BMW E88 Cabrio ECU Body Control Module H3 Junction Box 9229880

£47.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 7363091

Xenon Headlight Module BMW F22 F23 Control Unit Driver Module 7363091

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9319492

Air Module BMW X3 F25 F10 F11 F12 F13 ECU Control ECU Unit 9319492

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9183373

Bluetooth Module BMW E81 E87 E90 E91 Hands Free High MULF2 Harman Becker 9183373

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6809244

Head Unit BMW F20 F21 F32 F36 LCI Radio Media GPS Sat Navigation Unit 6809244

£332.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9274569

CIC Professional Unit BMW F01 F10 Sat Nav Infotainment Radio Player Head 9274569

£170.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 6855558

BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6855558

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6990090

BMW E61 E63 E90 E92 F06 Mini R55 R56 Trap Circuit Antenna 6990090

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7640755

BMW F20 F21 F30 F31 N13 116i 316i 136HP ECU Kit DME 7640755 Manual

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8506438-1

BMW E81 E87 LCI E90 E91 120d 320d N47 177HP ECU KIT DDE 8506438 CAS 3 Key

£161.95

Free delivery: Jul 15 – 22

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: Jul 14

If paid before 14:00

Part no. 6980078

BMW E88 Antenna Amplifier Aerial Diversity Module AMP 6980078

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9231179

Antenna Amplifier BMW F30 F80 M3 F82 M4 Rear Aerial Booster AM/FM DAB 9231179

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7473684

Door Cable BMW F25 F26 Right O/S Wiring Loom Harness Handle Light Lamp 7252538

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9151978

BMW E60 E63 E64 E90 LCI Dashboard Dash Onboard Display Monitor Screen 8.8" CCC

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7529732

BMW 5 Series E60 E61 520i 525i 530i M54 Petrol Engine Coils Wire Loom 7529732

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9153966

BMW E93 ECU Body Control Module H1 PL2 JBBFE 61359153966 9153966

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9240274-2

BMW E30 E31 F01 F02 F10 F11 Top View Mirror Camera 9240274

£80.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 7649087

BMW F20 LCI N20 F22 N26 Wiring Loom Harness Engine Module Ignition

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6864204

ICM Module BMW F20 F21 F30 F31 Control Unit 6864204

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6977679

BMW X5 X6 3 4 Series E70 F15 F16 F30 F31 F32 Cigarette Lighter Socket 6977679

£13.95

Free delivery: Jul 14

If paid before 14:00

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