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 E91 Touring ECU Body Control Module H4 PL2 61359131782 9131782

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6948692

BMW E60 E61 E63 Passenger Side Door Airbag Control Module 6948692

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6911922

BMW Z4 E85 E86 Interior Fuse Power Distribution Box 6911922 8384629

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6856314

BMW 1 3 Series F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9146244

BMW X3 X5 E53 E83 Control Unit Sliding Lifting Roof Panorama 9146244

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9350313

BMW F90 M5 G11 G30 Fuse Box Power Distribution Unit Front Right O/S 9350313

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7583225-7

BMW E87 LCI E90 118i 318i 143HP N43 Engine Control Unit ECU DME 7583225

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7639661

BMW F20 Alternator Engine Alternator Generator Denso 170A Petrol N55 7639661

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9483099

Mini Cooper One F55 F56 F57 Parking Assistant Control Unit Module 9483099

£51.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8506434

BMW E87 E90 LCI N47 118d 318d Diesel Engine Control Unit ECU DDE Manual Gearbox

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9390018

Audio Amplifier BMW F20 F21 LCI Mini F55 F56 Top Hifi Harman Kardon Unit 9390018

£275.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 6802943

Battery Box BMW G30 G31 Positive Fuse Battery Distribution Terminal Rear 6802943

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9128573

BMW 1 Series E87 LCI E87N Cable Set PDC Front Wiring Loom 9128573

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6983075

BMW F01 F07 F10 F30 LCI Fan Motor For Amplifier Control Unit Module Controller

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9224959

Dashboard Monitor BMW X5 X6 E70 E71 Onboard Display Screen 8,8" 9224959

£89.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7649131-1

BMW F30 F31 320i N20 184HP ECU Control Unit Kit DDE 7649131 Key FEM Automatic

£360.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9226881

BMW 1 Series F20 F20N F21 F21N LCI Radio Aerial Antenna Amplifier AM/FM 9226881

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8512047-3

BMW E90 E91 LCI N47N 320d ECU Kit Basic DDE Control Unit 8512047 + CAS3 + Key

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6836504

BMW F20 F21 LCI F30 F31 F32 F13 Electric Coolant Fan Motor Relay 130A 6836504

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7795638

BMW 3 E90 E91 E92 E93 Cable starter-base B Diesel 7795638

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9243897

BMW F10 F11 On Board Display Central Information Screen Monitor 10" 9243897

£85.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7615308

BMW F20 F21 F30 Petrol N13 Wiring Loom Harness Engine Gearbox Manual 7615308

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6938966

BMW 5 Series e60 Suppression Filter Radio Areal Amp Supressor 6938966

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9319918

Adapter Lead Wire BMW F45 F46 X1 F48 Cable Active Air Flap Control 9319918

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9290621

BMW F33 F83 M4 Convertible Top Phone Antenna Aerial Module CTM Unit 9290621

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9337219

BMW 3 Series F32 F82 M4 Wiring Loom Front Door Cable Passenger Side 9337221

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-8574257

Gearbox Wiring BMW F07 F10 LCI 520d N47N Automatic Engine Loom Harness 8574257

£70.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9291449

BMW F10 F11 F01 LCI Central Gateway Module ECU Control Unit LEAR ZGW-02 9291449

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8572426

BMW F30 F32 LCI 335dX 435dX Engine Injector Ignition Wiring Cable Loom 8572426

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7579142-15

£BMW E81 E87 LCI 116i 1.6 Petrol N43 ECU Kit DME 7579142 CAS3 + Key Automatic

£123.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8586536-1

BMW F30 F32 LCI 335dX 435dX N57Z 313HP Control Unit ECU Kit DDE 8586536 FEM Key

£332.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7625998

BMW F20 F21 F22 F30 F31 F32 F33 Line Cable Power Distribution Module 7625998

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9247397

Body Control Unit BMW F01 F10 F11 F12 Module ZGW-01 High Central Gateway 9247397

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9276064

BMW X3 F25 Antenna Aerial Diversity Amplifier Unit 868 MHZ 9276064

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9288301

BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9288301

£61.95

Free delivery: Aug 28

If paid before 14:00

Part no. T1000-15641

BMW Disc Professional Navigation 2009-2 DVD Road Map Europe T1000-15641

Product currently unavailable

Part no. 6939287

BMW E60 E61 E63 Air Module ECU Control Unit Centre Vehicle Sensor 6939287

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9366413

FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9366413

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9281068

Antenna Receiver BMW F33 F83 M4 Convertible Aerial DAB Unit 9281068

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9281829

BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM ECU LR01 9281829

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9381606

Battery Cable BMW F45 F46 Negative Lead IBS Wiring Harness 9381606

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6951079

BMW E60 525i 530i 545i Fuses Set Electrical Fuse 6951079 61146951079

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6938226

BMW 3 Series E90 E91 Cable Wiring Loom Rear Door Left Right 61126938226 6938249

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6941592

BMW 5 E60 Light Control Module Unit Lear LME6X MAN LWR LCM Delphi 6941592

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9381320

BMW F45 Mini F55 F56 Head Unit Basic Media DAB Headunit 9381320

£189.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9149025

BMW 1 3 Series E81 E87 E90 PDC Parking Ultrasonic Sensor Atlntikblau 9149025

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8512499-1

BMW E81 E87 E90 E91 LCI N47 143HP Diesel ECU Kit DDE 8512499 Manual

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9171984

BMW E60 E61 E63 E64 LCI Control Unit Lane Departure Warning Module ECU 9171984

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9496815

Front Impact Sensor BMW F70 G05 G14 G15 G29 Safety Crash Module Unit 9496815

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9267419

BMW E90 LCI Body Control Module H1 61359267419 9267419

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9160558

BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6951855

BMW 6 E64 E64N LCI Convertible Suppression Filter Aerial Module Antenna 6951855

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8510221-18

BMW E90 E91 E92 LCI 325d N57 204HP ECU Engine Module DDE 8510221 Automatic

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7565300

BMW Z4 E85 2.0i N46 150HP Engine Control Unit ECU DME Manual 7565300

£70.95

Free delivery: Aug 28

If paid before 14:00

Part no. 5A19AC3

BMW F40 ACSM5 Control Unit Air Module ECU Control Module 5A19AC3

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9171900

BMW X5 E70 X6 E71 Computer Control Unit DVD Player RSE MID PLUS PL4 9171900

£303.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 7567321-1

BMW 1 3 Series E81 E87 LCI E90 116i 316i N45N ECU Kit DME 7567321 + CAS3 + Key

£360.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9184560

BMW E65 E66 Seat Control Module Unit ECU 9134633 9184560

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9118111

BMW 1 Series E81 E82 Door Wiring Loom Harness 9118111

£13.95

Free delivery: Aug 28

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: Aug 28

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: Aug 28

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: Aug 28

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: Aug 28

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: Aug 28

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: Aug 28

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: Aug 28

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: Aug 28

If paid before 14:00

Part no. 6860936

BMW i3 I01 F45 F46 Control Unit SAS Module ECU 6860936

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3403208

BMW X3 Series E83 Ultrasonic Alarm System Module Control Unit 3403208

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9169691

BMW F10 F11 Mid-Range Sound Speaker Stereo 9169691

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6853705

BMW X6 E71 ICM Integrated Chassis Management Control Unit Brakes 6853705

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6989588

BMW 3 X1 Series E91 LCI E84 Switch Cluster Cruise Control Stalk Unit 6989588

£132.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6771182

BMW E90 E91 E92 E93 Longitudinal Dynamic Module Cruise Control 6771182

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9294300

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

£127.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9345378

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

£123.95

Free delivery: Aug 28

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: Aug 28

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: Aug 28

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: Aug 28

If paid before 14:00

Part no. 9347822

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

£75.95

Free delivery: Aug 28

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: Aug 28

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: Aug 28

If paid before 14:00

Part no. 9290804

BMW F20 F22 F30 F32 Module ECU Control Unit FEM Fuse Box 9290804

£56.95

Free delivery: Aug 28

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: Aug 28

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: Aug 28

If paid before 14:00

Part no. 7533283

BMW X3 Z4 Series E83 LCI E85 E86 Cover Top Power Distribution Fuse Box 7533283

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9347470

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

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8638585

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

£13.95

Free delivery: Aug 28

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: Aug 28

If paid before 14:00

Part no. 8583653

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

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6799712

BMW F10 F11 ICM Management Control Unit Module DSC Brakes 6799712

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8648003

BMW F20 F30 F31 LCI Earth Cable Battery Cable 8648003 12428648003

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 2622892

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

£32.95

Free delivery: Aug 28

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: Aug 28

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: Aug 28

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: Aug 28

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: Aug 28

If paid before 14:00

Part no. 9895416-1

BMW F20 F21 LCI 118i B38 136HP Engine ECU Kit DME 9895416 FEM Key Automatic

£237.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 5A2D542

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

£80.95

Free delivery: Aug 28

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: Aug 28

If paid before 14:00

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