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 Cable Loom Door Wiring Harness 6925942

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9230617

BMW F10 Front Right O/S Seat Wiring Loom Cable Harness 9230617

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 918545-102

BMW F11 Wiring Cable Loom 918545-102 767832-113

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7419610

BMW F30 F31 LCI Headlight LED Module Insert Light Source Set 7419610

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. P0148459-IB1

Mini Cooper One 1 R50 Fuel Filler Cover Fill In Flap Indi Blue Metallic 862

£17.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7586426

BMW E89 F10 F25 F26 Battery Clamp Bracket Holder 7586426

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7555127

BMW X5 X6 Series E70 3.0si N52N E71 Cover Electronic Box Panel 7555124

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3420482

BMW X3 E83 Ground Earth Cable Battery Wiring 3420482

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6842255

BMW F39 F45 Mini F56 F60 ICM Control Unit Air Module ECU 6842255

£127.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6950525-1

2 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9149231

BMW 5 Series E60 E61 LCI M-ASK M-Audio System Controller CD Player 9149231

£161.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6943851

BMW 5 6 Series E60 E61 E63 E64 Control Unit CAS 2 Module 6943851

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8506434-3

BMW E81 E84 E87 E90 LCI 18d 118d 318d N47 ECU Kit DDE 8506434 CAS3 Keys Manual

£180.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9228323

BMW F01 F10 F20 F30 F32 Camera Module Reversing Rear View Control Unit 9228323

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7810863

Battery Cable BMW X3 F25 Wire Lead Positive Alternator Starter B+ 7810863

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6925330

Central Bass Speaker BMW E81 E87 E90 E91 E92 Stereo Audio Right O/S 6925330

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8518569-1

BMW F20 F21 F30 F31 118d 318d N47N ECU Kit DDE 8518569 Key + FEM Manual

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8576333-2

Engine Unit ECU BMW F20 F30 F32 120dX 320dX 420dX N47N 184HP DDE 8576333 Manual

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9381020

BMW F33 F83 M4 Convertible Folding Top Roof ECU Module Control Unit CTM 9381020

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9290357

BMW F10 F20 F22 F30 Navigation Head Unit Harman Sat Nav Unit High 9290357

£379.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8708257

Head Unit BMW F20 F21 F22 F30 F31 LCI Sat Nav Radio Media Navigation 8708257

£303.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9348411

BMW X3 F25 Hifi System Audio Sound Amplifier AMP Module Unit 9348411

£89.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6928357

BMW 5 Series E60 E61 Front Left Door Wiring Loom Harness Passenger Side 6928357

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9123994

BMW Z4 Series E89 Cabrio Roadster Radio Antenna Mast Aerial FM Bumper 9123994

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7481616-1

Tailgate Lift Module BMW F31 F36 Mini F60 Trunk Control Unit Rear ECU 7481616

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6948689

BMW E60 E61 E63 Driver Side Door Air Module Control Unit Module 6948689

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9252816

BMW F01 F02 LCI F07 GT Power Distribution Electrical Fuse Box Front 9252816

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8372204

BMW X5 Series E53 Control Element Light Switch 61318372204 8372204

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7490824

BMW G20 G21 G30 G11 X3 G01 X5 G05 Fuel Pump Control Unit Module ECU 7490824

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9253111-1

BMW 1 2 Series F20 F21 F22 Positive Plus Pole Battery Blow Cable Part 9253111

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7809002

BMW E81 E82 E87 LCI E88 Engine N47S 123d ECU Kit DDE 7809002 CAS3 + Key Manual

£151.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6997612

BMW F20 F21 Air Conditioning A/C Climate Control Unit Module ECU 6997612

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7488140

BMW F10 F20 F21 F30 F31 LCI SCR Control Module ECU Unit 7488140

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7290719

BMW F40 F54 Cover Battery Vehicle Trim 7290719

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9257366

BMW 5 7 Series F01 F10 LCI Aerial Antenna Amplifier Diversity 868 MHZ 9257366

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9367812

Active Sound Design Module BMW F20 F21 F30 Harman Becker Control Unit 9367812

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9209684

BMW F01 F02 F04 F07 ECU ICM Control Unit Air Module Bag 9209684

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7797217-1

BMW 1 3 5 Series E60 E87 E90 E91 120d 320d M47N2 ECU Kit DDE 7797217 CAS2 + Key

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9228491

BMW 5 Series F10 ECU Body Control Module V2 Junction Box 61359228491 9228491

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8803368

Display Screen BMW F45 F46 Central Information Navigation Monitor 6,5" 8803368

£151.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6967184-1

BMW X5 E70 Positive Battery Cable Terminal Box Base B+ X6 E71 6967184

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9243667

BMW X3 F25 X4 F26 Rear Door Left Right N/O/S Wiring Loom Cables Harness 9243667

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7545232

BMW 1 3 Series E87 E90 N52 Wiring Loom Harness Engine Automatic Gearbox 7545232

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512291-3

BMW E90 LCI N47N 320d 184HP ECU KIT DDE CAS 3 Key 8512291 Automatic

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7812444

BMW X1 E84 N47 Engine Gearbox Module Wiring Cable Loom Harness 7812444

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8384525

BMW X5 Series E53 Electrical Power Distribution Fuse Box 8384525 6920648

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9226331-1

BMW 3 Series E91 ECU Body Control Module Unit H2 61359226331 9226331

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7555361-1

BMW 3 5 Series E60 E61 E90 E91 N52 325i 525i ECU Kit DME CAS2 Key 7555361 Manual

£118.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9291964

BMW 1 Series F20 Front Left Door N/S Wiring Loom Harness Cables 9291964

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7795021

BMW E60 E61 E63 LCI Earth Cable Electrical Battery Wiring 7789757

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9267200

BMW 1 Series E82 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9267200

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9462613

Camera Speed Control BMW i3 I01 F10 F20 F30 LCI KaFAS ECU Module Unit 9462613

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7527072-7

BMW Z4 E85 2.5i M54 192HP Engine ECU Control Unit Module DME 7527072 Manual

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 1543906

BMW G30 G31 X3 G01 X4 G02 G11 G32 Control Unit SAS Module ECU 1543906

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7604347

BMW F20 F30 F31 F32 Bracket Holder Power Distribution Control Unit 7604347

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6968649

BMW E93 Convertible Aerial Antenna Amplifier FM/AM Left N/S 6968649

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9283247-1

BMW X1 E84 Radio Stereo CD Player Navigation Nav Head Unit 9283247

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6958358

BMW 5 X5 Series E39 E53 Hands-free Electronics Charging Module MULF 6958358

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9386604

BMW F40 F46 Mini F56 F60 Battery Holder Mount Tray Bracket Support Trim 9386604

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573773

BMW F10 F30 F31 330d 530d Diesel N57N Engine Control Unit ECU DDE 8573773

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9284272

BMW F10 Body Control Module Electronic Junction Box 9284272

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9389310

BMW F45 Door Wiring Front Driver's Door Loom Cable Wiring Harness 9389310

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-6823573

BMW G30 G31 LCI High Voltage Battery Cable Wiring Harness Loom SLE - EME 6823573

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3402862

BMW X3 E83 LCi Earth Cable Flow Electric Battery Negative

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-8510247

Engine Wiring BMW E90 E91 E92 LCI N47N Loom Harness Cable Gearbox 8510247

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7546990-1

BMW E60 E63 E64 530i 630i N52 258HP ECU Kit DME 7546990 + CAS2 + Key Automatic

£275.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-8513823

Gearbox Wiring BMW F10 F11 520d N47N Manual Engine Loom Harness Cables 8513823

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8800147

BMW F20 F21 F22 F30 F31 LCI Head Unit Radio Media Player Navigation 8800147

£379.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8589145-10

BMW F20 LCI 116d B37 Engine Control Unit Module ECU DDE 8589145 Manual

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8662411-4

BMW F20 LCI 118i B38 136HP Engine ECU DME Kit FEM + 2 Keys 8662411 Manual

£493.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9239226-1

BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9239226

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6932644-1

BMW 3 5 Series E60 E71 E90 E92 Suppression Filter Aerial Module Antenna 6932644

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8506374-6

BMW E60 E87 E90 120d 177 HP N47 ECU Engine Control Unit DDE 8506374 Manual

£94.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9352861

FEM Unit BMW F20 F22 F30 F32 Control Unit Module ECU Fuse Box 9352861

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6947216

BMW 3 Series E93 Convertible Rear Bumper FM Radio Aerial Antenna 6947216

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6957330

BMW E60 E61 E63 Power Distribution Electrical Fuse Box 6957330

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-9825933

Display Screen BMW F40 Dashboard Central Information Control Unit 10,25" 9826391

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6906607

Fuse Box BMW E87 E90 E91 E92 E93 Front Power Distribution Relay Box 6906607

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9298947-1

BMW E88 ECU Body Control Module H4 Junction Box PL2RR JBBFE IIIR 9298947

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9267958

BMW F20 F30 MINI F56 Control Unit Air Conditioning Module 9267958

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A4A1E1

Kafas Camera BMW G20 G30 G28 G80 F40 F44 Front Assist Camera Module 5A4A1E1

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9240508

Fuse Map BMW X5 X6 E70 E71 Assignment Grouping Card 9240508

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9257008

BMW F01 F10 F12 Sat Nav Infotainment Radio Player Head Unit CIC 9257008

£218.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9864909

Door Cable Mini F60 Wiring Loom Front Right Driver's Side 9864909

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6966615

BMW 3 X3 X5 Z4 Series E46 E53 E83 E85 E86 Video Module High 6966615

£132.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9312764

Body Control Module BMW F10 LCI ECU Junction Box PL6 JBBFE III V2 9312764

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6843898

BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 6843898

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8626086

Alternator Motor BMW F20 F21 LCI B37 Diesel Engine Alternator 180A 8626086

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8578995

BMW F10 520d F20 120d F30 320d N47N 184HP Engine Unit ECU DDE 8578995

£104.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9263803-1

BMW 1 Series E87 LCI Max Brose Footwell Light Module Control Unit FRM3R 9263803

£151.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8387541

BMW X5 E39 E53 Fuse Box Housing 8 Fold Voltage Regulator Boot 8387541

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9188877

BMW F01 F02 F03 F10 F11 Steering Column Adjuster Switch 9188877

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9134666

Seat Module BMW E87 E90 E91 E92 Control Unit ECU 9134666

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573260-5

ECU Kit BMW F20 F21 116d Diesel N47N 116HP DDE 8573260 Key FEM Lock Manual

£142.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9240083

BMW X5 E70 X6 E71 Safety Control Unit Air Module Bag ECU Bosch 9240083

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9321879

BMW F10 LCI Body Control Module Gateway ECU 9321879

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8589907

Supply Module BMW F40 F48 Mini F55 F56 F57 Integrated Z11 Control Unit 8589907

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8046453-JEREZ

BMW 1 3 E87 E90 PDC Ultrasonic Sensor Front Rear Jerezschwarz A73 8046453

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9313636

BMW F30 LCI Cable Harness Loom Front Door Wiring Left N/S 9313636

£18.95

Free delivery: Jul 14

If paid before 14:00

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