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 F32 F33 F80 F82 F83 Headlamp Headlight Xenon Wiring Cable Left N/S 7424109

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6819333

BMW F30 Rear Body Control Unit Module V2 6819333

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 1138730-2

BMW X5 E70 X6 E71 Onboard Monitor Sat Nav System Display Screen 8,8" 1138730

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9381114

BMW F20 F21 F30 F31 F32 Mini F56 F57 Seat Control Unit Module Heating 9381114

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6935597-2

4 x BMW 1 3 E81 E87 E90 E91 PDC Set Parking Sensor Front Rear Titansilber Silver

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7843349

BMW F10 F11 LCI M5 F06 F13 M6 S63N Cable Alternator Starter Base B+ 7843349

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6937668

BMW X5 Series E53 Fuse Box Label Trim Cover Panel Sticker 6937668

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 2959574-2

BMW F36 Gran Coupe Headlight Height Level Sensor Rear Right O/S 2959574

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6807633

Control Unit BMW F01 F07 F10 F11 F25 Air Module ECU Unit Continental 6807633

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6989713-1

BMW E88 E89 E93 Convertible Cabrio DWA-Alarm System Module Set Of 2 6989713

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7394466

BMW F10 F11 X5 F15 LCI F32 F33 Adblue Module Control Unit ECU SCR 7394466

€75.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6799576

BMW F10 F11 ICM Control Module Unit 6799576

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9311296

Radio Player BMW F10 F11 F20 F21 F25 F30 F31 Alpine CD Champ 2 Head Unit 9311296

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8507912

BMW F30 F31 Engine Wiring Loom N47N Harness Automatic Gearbox 7549282

€66.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9218381-1

BMW F10 F20 F30 Steering Wheel Module Electronics Control Unit 9209427

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8733503

BMW F30 Fuse Box Front Body Control Module ECU BCM Unit 8733503

€189.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8516122

Battery Cable BMW X5 F15 X6 F16 Alternator Starter Wiring Loom Harness 8516122

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6944663

BMW E90 Front Seat Wiring Harness Cable Loom 6944663

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6959987

BMW 7 Series E65 E66 Windscreen Wiper Switch Column Stalk 61316959987 6959987

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9379832

BMW X3 F25 X4 F26 Door Wiring Loom Harness Cable Driver's Side 9379820

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8639595-1

BMW F30 F31 F32 320i 420i N20 xDrive ECU Engine Control Unit DME 8639595 Manual

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8506374-6

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

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6927572

BMW X3 E83 Z4 E85 Wiring Seat Occupancy Cable 6927572

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5B61812

BMW X1 U11 GPS Navigation Audio Radio Infotainment Head Unit Control 5B61812

€522.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9339339

BMW 1 3 F20 F21 F30 F31 Driver Side Seat Wiring Loom Cable Harness 9339339

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6970908

BMW E65 E66 Sensor Front Right Door Airbag O/S 6970908

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9225014-1

BMW F23 F30 Distributor External Ignition Base Control Unit Module 9225014

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6809053

BMW F20 F22 F30 Rear Electronic Module REM Fuse Box Control Unit V5 ECU 6809053

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9267467

BMW F13 Body Control Module Electronic Junction Box JBBFE 3 PL6 V3 9267467

€80.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9379845

BMW X3 F25 X4 F26 Door Wiring Loom Harness Cable Passenger's Side 9379834

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8792148

Navigation Headunit BMW F20 F22 F30 Mini F55 F56 Head Unit Basic Media

€137.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9346273

BMW F15 Kafas Camera Lane Assist Module Control Unit ECU 9346273

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9267456

Control Unit BMW F10 F11 Body Module ECU JBBFE IIIR V2 PL6 ECU 9267456

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8590019

BMW G30 G31 Engine Wiring Harness Supply Line Cable 530d B57 Diesel 8590019

€142.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6922211

BMW E81 E87 E90 E60 Mini R55 R56 R57 Interior Aerial Comfort Access 6922211

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9496820

Crash Sensor BMW G20 G26 G80 Front Door Left Right N/O/S Air Impact Unit 9496820

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9348411

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

€85.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9855653

BMW F40 F74 F78 Power Distribution Box Mount Bracket Holder 9855653

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6814187-1

Audio Module BMW F20 F30 F31 F32 Operating Unit FBM Control Panel 6814187

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8806980

BMW i3 I01 LCI Door Wiring Cable Loom Harness Rear Left Right N/O/S 8806980

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6928934

Antenna Amplifier BMW E82 E90 E92 Diversity Signal Boost 6928934

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6992955

BMW F25 Footwell Light Control Module ECU Unit FRM3 TEMIC 6992955

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8582280-12

BMW F20 F21 116d N47N 117HP Engine Control ECU Kit DDE 8582280 Manual

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9389069

BMW F20 F21 F30 F31 F32 X5 F15 X6 F16 Power Distribution Fuse Box Front 9389069

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9313614

BMW F30 F31 F80 M3 Driver's Side Door Wiring Loom Cable 9313614

€54.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7572873

BMW Z4 E85 E86 Battery Holder Hold Down Bracket 7572873

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8519005-2

BMW X1 E84 18dX Diesel N47N 143HP Engine Unit ECU DDE 8519005 Automatic

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9318579

BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9318579

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A4A7B1

BMW G20 G21 LCI Rear Door Wiring Loom Harness Cable Left Right N/O/S 5A4A7B1

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6860936

BMW i3 I01 F45 F46 Control Unit SAS Module ECU 6860936

€142.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8373700-1

BMW E60 E63 E87 E90 E91 2X Relay Make Contact White Green Set 8373700

€24.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9866980

BMW F20 Body Control Unit Module REM Fuse Box 9866980

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6994419

BMW G20 Power Distribution Fusebox Cover Fuse Box Terminal 6994419

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7164820-2

BMW E88 E93 Convertible Rollover Bar Protection System Sensor Unit Module 800137

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7839662

BMW E90 E92 E93 LCI Cable Alternator Starter Base B 7839662

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9253780

Boot Release Switch BMW F01 F02 F10 F11 LCI Auto Tailgate 9253780

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A07600

BMW F40 Heater Air Conditioning System Control Unit Module 5A075F7

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9350707

BMW F15 I01 Mini F55 F56 F57 PDC Module Parking Assistant Control Unit 9350707

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9382418

BMW F45 X1 F48 G30 Telematics Module Bluetooth Telephone Control Unit 9382418

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9187604

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

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8507360

Automatic Gearbox Wiring BMW F10 F11 530d N57 Engine Loom Harness Cables 8513823

€127.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9128569-2

Wiring Harness BMW E81 E82 E87 LCI E88 Air Valve Air Flap Cable Wire 9128569

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9252010

BMW X5 X6 F15 F16 Rear Seat Heating Switch Button Panel Cover 9252010

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7300268-2

Rear Lamp BMW F01 F02 LCI Saloon Light Side Panel Right O/S Harness Wire 7300268

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9118064

BMW 7 Series E65 E66 Centre Console Vent Storage Compartment Support 9118064

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7631558

Engine Starter BMW F20 M135i F30 335i F32 435i F80 M3 F82 M4 Motor Start 7631558

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9237085

BMW F10 F11 Cable Loom Door Passenger Side Wiring Harness 9240882

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9288770

BMW F20 F21 F22 Mid Range Sound Speaker Stereo HiFi 9288770

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7311541

BMW 2 Series F22 F87 M2 Rear Third Stoplamp Stop Lamp Brake Light White 7311541

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9347878

Dashboard Monitor BMW X5 F15 Onboard Central Display Screen 10,25" 9347878

€246.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9382417

BMW 1 2 3 5 F10 F20 F23 F30 Bluetooth Teleservices GPS Telematics Module 9382417

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9231320

Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 9231320

€89.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6865300

BMW F20 F22 F30 F32 F36 Air Module Control Module ICM Plus Unit 6865300

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9261604

Rear Bumper PDC BMW F20 F21 F22 Ultrasonic Sensor Tiefseeblau Deep Sea Blue A76

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9253111-1

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

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6931507

BMW E60 E61 E63 E87 E90 E91 F10 Diagnosis Interface Most 6931507

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6970890

BMW 7 Series E65 E66 E67 Sensor B-pillar Left Airbag N/S 6970890

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9222071

BMW F07 BCM Body Control Module Unit Controller 9222071

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5B87854

BMW F74 Gran Coupé Air Module ECU Control Unit 5B87854

€531.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 1543906

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

€99.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7856817

BMW F90 M5 F91 M8 Battery Cable Wire Lead Positive Alternator Starter B+ 7856817

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6927310

BMW E60 Seat Control Unit Module Left Right N/O/S Temic 6927270

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7621178

BMW E81 E87 LCI E90 N43 120i 320i Engine Control Unit ECU DME 7621178 Manual

€85.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9351679-1

BMW F10 F20 F22 F30 Navigation Sat Nav Head Unit High 9351679

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9381837

BMW X1 F48 Mini F55 F56 Air Module Control Unit ECU 9381837

€85.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8510221-16

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

€70.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 2753025

Mini Cooper R55 R56 R57 R58 Wiring Heated Seat Loom 2753025

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7578020-2

BMW E93 Engine Control Unit ECU 218 HP 325i N53 Petrol KIT 7578020 Manual

€569.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7811700-3

BMW E60 LCI E87 E90 120d 320d 520d N47 177HP ECU KIT DDE 7811700 CAS3 Key Manual

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8616810

BMW 1 2 3 4 Series F20 F21 F22 F23 F30 F31 F32 Battery Cable Connecying Line

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8366282-1

BMW Z1 Z3 E32 E36 E38 E46 X5 E53 Connection Plug Golden Brown Set x2 8366282

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8583451-1

BMW F20 F21 F30 LCI F32 Engine Starter Motor Diesel B37 B47 8583451

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6778809

Mini Cooper One R55 R56 R57 Xenon Headlight Level Sensor 6778809

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7801216-1

BMW X3 E83 2.0d 150HP M47N2 Diesel Engine Control ECU DDE Kit 7801216 Manual

€398.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9127895

BMW E88 Convertible Antenna Aerial DAB Rear Trunk Tailgate 9127895

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9371130

BMW F30 Seat Control Unit Seat Module Unit Controller ECU 9371130

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6927706

BMW 5 6 Series E60 E63 E64 Tubing Duct Battery Cable Lead Positive Underfloor

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9159311

BMW 5 Series F10 F11 Mini R55 R56 R57 Door Sensor Airbag 9159311

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8585642

BMW F20 F21 F30 F31 N47N Wiring Loom Harness Engine Gearbox Module 8585642

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

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