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 1 Series E81 E82 Door Wiring Loom Harness 9118111

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7541335-4

BMW X3 E83 2.5i M54 192HP ECU Engine Control Kit DME 7541335 EWS3 Key MANUAL

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8509914

BMW F20 F21 F22 F23 F30 F31 F32 F33 F34 F36 Cover Electronics Box 8509914

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8378753

BMW 3 5 7 X5 Series E38 E39 E46 E53 E65 Reception Antenna RDC 433MHZ 8378753

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9216273

BMW 1 3 E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9216273

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7560377

Cable Alternator BMW E81 E82 E87 E88 E90 E91 LCI Starter B+ 7560377

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9127895

BMW E88 Convertible Antenna Aerial DAB Rear Trunk Tailgate 9127895

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7556846

Battery Cable BMW E82 E90 E91 E92 N54 Alternator Starter Base B Cable 7556846

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8638588

BMW F20 F22 F30 LCI 125i 230i 320i 330i B48 Cable Alternator Starter 8638588

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9134668

Seat Control Unit BMW E90 E91 E92 Seat Module Unit Controller ECU 9134668

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6860936

BMW i3 I01 F45 F46 Control Unit SAS Module ECU 6860936

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3403208

BMW X3 Series E83 Ultrasonic Alarm System Module Control Unit 3403208

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9169691

BMW F10 F11 Mid-Range Sound Speaker Stereo 9169691

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6771182

BMW E90 E91 E92 E93 Longitudinal Dynamic Module Cruise Control 6771182

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9294300

Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 8,8" 9294300

£137.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9345378

BMW X3 F25 Light Module Control Footwell Lightning ECU Unit FRM3 9345378

£151.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9175653

BMW 1 Series E81 Xenon Footwell Light Control Module LCM PL2 FRM II 9175653

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6974631

BMW Z4 Z3 Series E36 E85 Module Radar Burglar Alarm Sensor

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9451484

Trunk Lid Module BMW F40 F90 M5 G20 G30 Power Tailgate Control Unit 9451484

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6925945

BMW 5 Series E60 E61 Rear Left Right Door N/O/S Wiring Cable Harness Loom

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573260

BMW F20 F21 114d 116d Diesel N47N Engine Control Unit DDE 8573260 Manual

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9347822

Head Unit BMW F10 F11 F20 F30 Navigation Sat Nav High Control Module 9347822

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7805287-1

BMW E60 LCI E90 E70 3.0sd 335d 535d M57N2 286HP Engine ECU Kit DDE 7805287 Auto

£379.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8387546

BMW 3 Z4 Series E46 E85 E86 Battery Positive Cable Fuse Box B Base 8387546

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3412574

BMW X3 Series E83 Rear Left Right Door N/O/S Wiring Loom Cables 3412574

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6928050

BMW 7 Series E65 E66 E67 Battery Cable Wire Earth Ground Minus Negative L=260MM

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6958449

BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side 61356958449 6958449

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9113348

BMW E81 E87 LCI E90 E91 DC/DC Wandler Torque Converter Module 9113348

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7545150-1

BMW X5 E53 3.0i M54 231HP ECU Engine Kit DME 7545150 Automatic Key EWS

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9347470

BMW 1 3 Series F20 F21 F30 Control Unit Controller Touch 9347470

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8638585

BMW F20 F21 F30 F31 LCI Cable Alternator-Starter-Base B+ 8638585

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6982356

BMW 5 Series E60 E61 Front Door Wiring Loom Harness Passenger Side 6982356

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8583653

BMW F10 F30 F31 LCI N57N Wiring Harness Engine Glow Module 8583653

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6799712

BMW F10 F11 ICM Management Control Unit Module DSC Brakes 6799712

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8648003

BMW F20 F30 F31 LCI Earth Cable Battery Cable 8648003 12428648003

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8515494

BMW 5 Series F10 F11 530d N57N Cable Alternator Starter Base B+ 8515494

£25.95

Free delivery: Jul 14

If paid before 14:00

Part no. 2622892

BMW 1 2 Series F20 F21 F22 F23 Control Unit Module Active Sound Design 2622892

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8510829

BMW E90 E91 LCI N47N 320ed 320d ed 163HP ECU Engine Control DDE 8510829 Manual

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9361150

Wiring BMW X5 F15 M Sport Rear Park Assist PDC Wiring Harness Loom 9361150

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8586540

BMW F30 F32 LCI 330d 430d N57N 258HP Engine Control Unit Module ECU DDE 8586540

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A2D542

BMW F40 Body Control Module Domain Controller Unit BDC ECU 5A2D542

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9140942-BAR

BMW 1 3 Series E87 E90 E91 LCI Rear PDC Ultrasonic Parking Sensor Barbera Red

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7634056

Engine Wiring BMW F20 F21 F30 F31 N20 Cable Loom Harness 7634056

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6782372

BMW X1 X3 Z4 E83 LCI E84 E89 E90 E91 E92 Speed Sensor Cluster 6782372

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8321087

BMW 5 SERIES E60 ELECTRIC SEAT Height Adjust 0390203234 8321087

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9257009

BMW F01 F10 CIC Professional Unit Sat Nav Infotainment DAB Radio Player 9257009

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9286479

BMW F10 F11 LCI Front Bumper PDC Sensors Loom Cables Wiring Set 9286479

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6929556

BMW E65 E66 Driver's Seat Air Module Sensor Control Unit Module 6929556

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9146651

BMW X5 X6 E70 E71 Board Monitor Sat Nav System Screen 8,8" 9146651

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-8513423

BMW 3 SERIES E90 E91 LCI 316d 318d N47N Engine Wiring Loom Harness DDE 8513423

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9289580

Dashboard Monitor BMW X5 E70 X6 E71 Onboard Display Screen CID 8,8" 9289580

£94.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9317175

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9317175

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6958526

BMW 5 X5 X6 Series E60 E61 E70 E71 F07 F10 F11 Seat Adjustment Switch Right O/S

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6935667

BMW Z4 Series E85 Battery Lead Positive Cable Plus Pole 6935667

£61.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7634058

BMW F20 F30 Engine Automatic Gearbox Module Wiring Cable Loom Harness 7634058

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6956672

BMW E63 E63N LCI Centre Console Switch Centre DTC PDC 6956672

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9350065

Battery Cable BMW F90 M5 F91 M8 G11 G30 Positive Wiring Plus Pole Red 9350065

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9875929

BMW F20 F21 F22 F23 LCI DAB Navigation Head Control Unit Module Business 9875929

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9330952

BMW F12 F13 Air Control Module Control Unit ACSM4 9330952

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8387540

BMW X3 E83 Positive B Battery Terminal Point Case 8387540

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9344677

BMW 2 3 Series F22 F80 M3 F82 M4 Wiring Loom Harness Rear Trunk Lid 9344677

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8798189-1

Basic Head Unit BMW F45 X1 F48 Mini F55 F56 Sat Navigation Radio Stereo 8798189

£180.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8517862

BMW F10 F20 F30 F32 Engine Control Unit Diesel N47N ECU DDE 8517862 Manual

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6970086

BMW 5 6 Series E60 E61 E63 LCI Cable Set Start / Stop Switch Wiring Loom 6970087

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512047

BMW E90 E91 LCI N47N 320d ed ECU KIT DDE CAS 3 Key 8512047 Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6870539

BMW F10 F11 F12 F13 Parking AID Control Module ECU 6870539

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8699955

Engine Control Unit BMW F20 F21 F22 118i 218i B38 136HP ECU DME 8699955 Manual

£161.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9322690

BMW F32 F82 M4 Hifi Audio Sound System Speaker AMP Amplifier Module 9322690

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6950093

BMW X5 Series E70 Flat Cable Wiring Wire CAS Start Stop 6950093

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8630125

BMW F20 F21 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8630125 Manual

£184.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9350003-1

Safety Control Unit BMW F01 LCI F07 F10 F11 F25 Air Module Bag ECU 9350003

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6945387

BMW X3 X5 Series E53 E83 E87 Hands-free Electronics Charging Module MULF 6945387

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9227179-1

BMW 1 Series E87 Body Control Module ECU L2 PL2RR JBBFE Junction Box 9227179

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9461797

BMW F90 M5 G01 G11 G30 KaFAS Camera Speed Control ECU Module Unit 9461797

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-9188741

BMW X5 X6 Series E70 E71 Cable Loom Wiring Set Seat Driver's Side 9188741

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 2753025

Mini Cooper R55 R56 R57 R58 Wiring Heated Seat Loom 2753025

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7823973-1

BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 7823973 CAS3 + Key

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7519051

BMW 7 Series E65 E66 E67 Electric valve 735i 745i 735Li 745Li 745LiS

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9196591

BMW E88 Cabrio Convertible Folding Top Roof ECU Module CVM6 9196591

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9320213

BMW F30 F31 F32 Top Hifi Audio System AMP Amplifier Harman Kardon 9320213

£474.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9170702

BMW 5 Series E60 E61 LCI CCC CD Sat Nav Head Player System Controller 9170702

£284.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9148264

Seat Module BMW E87 E90 E91 E92 Control Unit ECU 9148264

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6938079

BMW E81 E87 E90 E91 PDC Speaker Trigger Contact 6969139 6938079

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-9271762

BMW 5 6 F10 F11 F12 Cable Set Power Steering Rack Box Wiring Harness 9271762

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6820931

Telematics Module BMW X1 F48 F20 F30 Bluetooth GPS Control Unit ECU 6820931

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9129850

BMW X3 X5 Series E83 E53 Telematics Control Unit Module 9129850

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7550967-1

BMW E81 E90 E91 E60 Petrol Alternator Generator 150A 7550967

£42.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7533651-5

BMW E60 525i M54 192HP ECU Engine Control Unit Module DME 7533651 Automatic

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 2448166

Amplifier BMW F30 F31 F32 F33 F34 F36 Active Sound Design Audio Module 2448166

£42.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6958446

BMW E65 E66 E67 Control Unit Door Front Passenger Side Module ECU 6958446

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9229007

BMW F10 Antenna Amplifier Diversity 868 MHZ 9229007

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9253477

BMW E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE IIIR 9253477

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7803369-1

BMW E60 E90 E91 330d 530d M57N2 ECU Engine Kit DDE 7803369 CAS3 + Key Automatic

£313.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-9262752-3

Display Cover BMW F20 F21 Information Screen 6,5" Trim Panel Housing 9262752

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6970337

BMW E92 Seat Backrest Adjustment Adapter Lead Cable 6970337

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9137055

BMW 5 6 E61 Touring E63 Coupe Panoramic Sliding Sunroof CAN Bus Control Unit

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8618444

BMW F30 LCI 330e B48X Cell Module Connector 8618444 61278618444

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7545046

BMW 1 3 Series E87 E90 N45 116i 316i Petrol ECU Kit DME CAS 2 Key 7545046

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9181453

BMW 1 X4 X5 Series F20 F21 F25 F26 Antenna Aerial Diversity Trap Circuit 9181453

£13.95

Free delivery: Jul 14

If paid before 14:00

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