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 G30 G31 Body Control Comfort Module Unit FEM BDC ECU V04 6994548

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9232896-1

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. 8634244

Engine Wiring BMW F45 Mini F60 B38 Loom Harness Injection Valve Ignition 8634244

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9156238

BMW E60 E61 E63 Professional CCC Navigation System Controller JAPAN 9156238

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9321002

Battery Cable BMW X3 F25 X4 F26 Underfloor Positive Plus Lead Harness 9321002

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 2447525

Telematics Module BMW F21 Bluetooth Control Unit ECU 2447525

£42.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8792152

CD Player BMW F20 F21 F30 F32 Mini F55 F56 Radio DAB Bluetooth Head Unit 8792152

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9133083-1

BMW E81 E87 E90 E91 E92 6-disc CD Changer 9133083

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6866986

BMW F01 F02 LCI F06 F10 F11 F13 ECU ICM Control Unit Module Airbag 6866986

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7567362-2

BMW 3 Series E90 E91 E92 325i N52N 218HP ECU Kit DME CAS3 Key 7567362 Manual

£332.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7848838

BMW M4 F82 Smart Opener Sensor 7848838

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8586540-5

BMW F30 F32 LCI 330d 430d N57N 258HP Control Unit ECU Kit DDE 8586540 FEM Key

£332.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-9231841

Door Cable Mini R55 R56 LCI Wiring Loom Front Right Driver's Side 9231841

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8510832-4

BMW E90 E91 LCI 318d N47N 143HP Engine Control ECU DDE 8510832 Manual

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8517862-12

BMW F20 F21 F30 F31 F32 N47N 184HP Engine Control ECU DDE Kit 8517862 Automatic

£132.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9143823-1

BMW E88 E93 LCI ECU Air Control Unit Module Controller 9143823

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7618644

BMW Z4 Series E89 Roadster Petrol N20 Cable Alternator-Starter-Base B 7618644

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A31B06-1

BMW X4M Competition F98 S58 510HP Engine ECU DME Kit BDC + Key 5A31B06 Automatic

£1,899.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512291-5

BMW E90 E91 LCI N47N 320d ed 163HP Engine ECU Kit DDE 8512291 Manual

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9181326-2

BMW E81 E87 E90 E91 E92 6-Disc CD Changer With Magazine 9181326

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6792659

BMW X5 E70 X6 E71 Control Unit Dynamic Drive Front Axle Suspension 6792659

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6914867

BMW X5 Series E53 Radio BMW Business Cassette 6914867

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9119578

Antenna Amplifier BMW Z4 E85 E86 Rod Antenna Unit Module 9119578

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8614090

BMW X5 F15 Seal High Voltage Battery Unit Gasket 8614090

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6996980

Heater Wiring BMW G11 G30 Cable Harness Loom Matrix Air Conditioner 6996980

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7395039

BMW G11 G12 SRC Unit Bracket SRC Module Holder Bracket Mount 7395039

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A28AF0

BMW F36 Gran Coupe Radio Player Head Unit CD DVD 5A28AF0

£712.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. RHD-7448377-2

Mini F55 F56 F57 Headlight Headlamp Front Left N/S Cable Wire Harness 7472227

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6946528

BMW 1 3 X1 Series E81 E87 E90 E91 E92 Ultra Sonic Module Alarm System 6946528

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7555193

BMW F10 Control Unit Box F07 F11 Engine Ventilation Housing Box 7555193

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7849393-1

BMW F20 F21 F30 F31 F32 Steering Wheel Heating Control Module Wiring 7849393

£104.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9229972

Module BMW Z4 E89 Convertible Cabrio ECU Control Unit Controller 9229972

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573258-12

BMW F20 F30 F31 118d 318d N47N 143HP Engine Control ECU DDE 8573258 Automatic

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9216168

BMW F01 F02 F10 Bluetooth Control Unit Module Telemetics Control Unit 9216168

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8714783

Door Wiring BMW G30 F90 G31 Harness Rear Left Right N/O/S 8714783

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6800371

BMW X5 F15 40eX N20 HV Battery Cable Wiring Harness Loom SLE - EME 6800371

£42.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512047-7

BMW E90 E91 LCI N47N 320d 163HP ECU Module KIT DDE 8512047 Automatic

£151.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9366407

BMW F20 F21 F30 F31 F32 Body Comfort Module FEM ECU LR01 Control Unit 9366407

£137.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9207716

BMW X5 E70 X6 E71 Computer Control Unit DVD Player RSE MID PLUS PL4 9207716

£265.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7533651-13

BMW E60 E61 520i Petrol M54 170HP Engine Control Unit ECU DME 7533651 Manual

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9290992

BMW F20 F21 F22 F30 F31 Radio Player CD Bluetooth Head Unit Control 9290992

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9240647

BMW F02 Television Tuner TV Receiver Control Unit Module 9240647

£118.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8642338-2

BMW i3 I01 IB1 60Ah Electric ECU Engine Control Unit Kit eDME 8642338 BDC Key

£427.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6939050

BMW 7 er E65 E66 E67 Video Module 6939050

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8582280-4

BMW F20 116d N47N 116HP Engine Control ECU DDE 8582280 Automatic Transmission

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9206502

BMW F01 F02 F03 Driver Assistance System Module Control Unit Switch 9206502

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9384988

BMW F20 F45 F46 Kafas Camera Control Module Unit ECU 9384988

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7555188

BMW 5 6 Series F10 F11 F12 F13 Control Unit Box Cover 7555155

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9260874-3

BMW X1 E84 E91 Alarm Sensor Ultra Sonic Module System Black 9260874

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8509757-2

BMW F07 530d F01 730d N57 245HP Engine ECU Kit DDE 8509757 CAS4 Key Automatic

£227.95

Free delivery: Jul 14

If paid before 14:00

Part no. 37820-P73-013

Honda Integra Type R JDM DC2 Engine Control Unit Module ECU 37820-P73-013

£332.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7649131-3

BMW F30 F31 320i N20 184HP ECU Control Unit Kit DME 7649131 Key FEM Manual

£379.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9488417

Mini F60 BMW F48 SCR AdBlue Module Control Unit 9488417

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573779-2

BMW X3 F25 30dX 258HP N57N Engine ECU Kit DDE + FEM + Key 8573779 Automatic

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9325908

BMW F36 Gran Coupe Door Wiring Harness Cable Loom Front Passenger Side 9325908

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8585380

BMW X3 F25 X4 F25 30dX N57N 258HP Engine Control ECU DDE 8585380 Automatic

£237.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 5A350D2

BMW F20 F30 F32 Mini F55 F56 F60 KAFAS 2 Camera Control Unit Module ECU 5A350D2

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8639595-14

BMW F07 LCI F10 LCI F34 ECU Engine Control KIT 184 HP 220i N20 Petrol 8639595

£284.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6824129

Inverter Wiring BMW F45 Mini F60 Hybrid High Voltage Battery Cable Loom 6824129

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5B52225

BMW F70 U06 Wireless Charger Centre Console Phone Charging Module Unit 5B52225

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9187604

BMW F07 F10 F11 F12 TV Video Switch Control Module Unit 9187604

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7571510-4

BMW Z4 E86 Coupe 3.0si N52 265HP Engine Control Unit ECU DDE 7571510 Automatic

£284.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8577625-4

BMW F20 F21 116d N47N 116HP Engine Control Unit DDE ECU Kit 8577625 Manual

£189.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6946991

BMW E46 X3 E83 Z4 E85 Telematics Bluetooth Control Unit Module 6946991

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7643312-1

BMW F10 F11 F20 F30 320i 520i N20 184HP Engine Control ECU DME 7643312 Automatic

£284.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7451529

BMW F10 F36 Mini Clubman F54 Tailgate Smart Opener Bootlid Control Unit 7451529

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8044739

Differential Module Bracket BMW G21 X3 G01 Control Unit Holder Rear 8044739

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A57782-1

BMW G30 530E B48X Hybrid Engine Control Unit ECU Kit DME 5A57782 Key BDC

£759.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8576341-9

BMW F20 118d F30 318d 143HP N47N Engine ECU Kit DDE 8576341 + Key + FEM Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9372556

BMW G11 Door Wiring Harness Rear Left Right Door N/O/S Wiring Loom 9372556

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A1BCD8-1

Blind Spot Sensor Module BMW G16 X4M F98 Distance Sensor Monitor Unit 5A1BCD8

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512043

BMW 3 E90 E91 LCI 316d 318d N47N Engine Basic DDE 8512043 Control Unit Manual

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6821408

High Voltage Cable BMW F45 Mini F60 Harness Wiring 6821408

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5B36DD9

BMW U06 Fuel Pump Control Module Unit ECU 5B36DD9

£165.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7595179-15

BMW E81 E87 LCI N43 116i 1.6 122HP ECU Control Unit Kit DME 7595179 CAS3 + Key

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6836648

BMW G32 Adapter Cable Switch Door Center 6836648

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9294209

BMW X3 F25 Radio CD Player Head Unit Navigation Sat Nav CIC Alpine 9294209

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512043-7

BMW E90 E91 LCI 318d N47N 143HP Engine Control Unit ECU DDE 8512043 Automatic

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9205362

BMW F01 F02 Servotronic Cable Wiring Power Steering Loom Harness Set 9205362

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9348268

BMW F01 Battery Cable Wire Lead Positive Underfloor 9265307

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. E92-PDC-WIRING-LOOM-HARNESS-REAR-BUMPER-2

BMW E92 E92N LCI PDC Wiring Loom Harness Rear Bumper

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6868600

BMW F20 F22 F30 F32 F36 Air Module Domain Control Unit Module ICM Plus 6868600

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8715688

BMW i4 G26 iX3 G08 Cover Base B+ Positive Distributor Cap Fuse Box 8715688

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8626172-8

BMW F10 LCI 520i N20 184HP Engine Control ECU Kit DDE 8626172 Automatic

£265.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 5A130F9

BMW F40 F44 G20 Parking Control Module Unit USS ECU LOW 5A130F9

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A149A9

BMW F40 116d B37B B37C15A 116HP Engine Control Unit Module ECU DME 5A149A9

£265.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8514291

Battery Cable BMW X3 F25 X4 F26 B47 Alternator Starter Base B Cable 8514291

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9286365

BMW X1 X2 Series F39 F48 Antenne AM Antenna Amplifier Cable 9286365

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8518569-3

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

£218.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9351979

BMW X5 F15 X6 F16 M Audio Amplifier Sound System HiFi Unit Module ECU 9351979

£70.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7420992-1

BMW F22 F23 F87 M2 LED Tail Light Lamp Rear Right O/S Wire Cable Harness 7420992

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9296495

BMW F20 F21 F22 F30 F31 F33 F34 Air Module Control Unit ECU 9296495

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6825456

Wiring Holder BMW F45 Mini F60 Hybrid Electrical Cable Loom Cover 6825456

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. T1000-8293

BMW Disc High Navigation DVD 2004-2 Road Map Europe T1000-8293

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7810950-7

BMW E83 LCI 3.0d M57N2 218HP Engine Control Unit ECU DDE 7810950 Manual

£227.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8650701-1

BMW F80 M3 F82 F83 M4 S55 431HP Engine Module ECU DME Kit 8650701 Automatic

£949.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6915943

BMW 7 X3 Z4 Series E65 E66 E83 E85 E86 Interface Japan Luggage Module 6915943

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9372545

Door Wiring Harness BMW G11 Front Left Door N/S Wiring Loom Cables 9372545

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7558202

BMW 7 Series E65 Petrol N62 Engine Ignition Wiring Loom Harness Cables 7558202

£23.95

Free delivery: Jul 14

If paid before 14:00

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