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 X1 U11 Potential Equalizator Wiring Harness Cable 5A27C22

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9321016

On-Board Screen BMW F10 F11 LCI Central Information Display 10,25" 9321016

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8648221

BMW G11 G12 G14 G15 G16 G30 G31 G32 GT Engine Control Unit Box Cover 8648221

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6868077-2

BMW F20 F21 F22 F30 F31 Power Steering Rack Wiring Harness Cable 6868077

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9387147

BMW F30 LCI 330e B48X Positive Battery Cable Plus EME Loom 9387147

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9247474

BMW 1 Series E88 ECU Body Control Module H3 Junction Box PL2RR 9247474

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4752820

Positive Cable BMW F20 F21 Under Bonnet Battery Wiring Loom 4752820

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7555193

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9186654

BMW E92 Door Wiring Harness Cable Loom Front Driver's Side 9186654

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9166350

BMW F06 F12 F13 Electric Parking Brake Wiring Loom Harness 9166350

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9131717

BMW 87 E90 E91 Navigation Radio CD Player Head Unit M-Audio 9131717

€213.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7619144

Engine Wiring BMW F10 F20 F21 F30 N20 Loom Harness Ignition Module 7619144

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9232896-3

Dashboard Monitor BMW X5 E70 X6 E71 Onboard Display Screen 8,8" Unit 9232896

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9356183

BMW 1 2 Series F20 F21 F22 Control Unit Sensor Air Conditioning System 9356183

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7811700-12

BMW E60 E61 LCI E90 320d 520d N47 177HP ECU KIT DDE 7811700 CAS3 + Key Manual

€161.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8485066

BMW X3 G01 X4 G02 Positive Cable Alternator Starter Base B Wire Line 8485066

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7304589

BMW F01 F02 Headlight Module LEAR TMS Headlamp Control Unit Module 7304589

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6920292

BMW 7 Series E65 Cable Harness Loom Front Door Wiring Left Right N/O/S 6920292

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6993311

Seat Module BMW F20 F32 F33 Control Unit Front Left Right N/O/S 6993311

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8473189-1

BMW X5 F15 30dX N57N 258HP Engine Control Unit ECU Kit 8473189 Automatic

€436.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8510841-1

BMW X5 E70 LCI 40dX N57S 306HP Engine Control Unit ECU KIT DDE 8510841 Automatic

€560.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8512291-2

BMW 3 Series E90 E91 LCI N47N 320d 184HP ECU KIT DDE CAS 3 Key 8512291 Manual

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8385159-1

BMW X3 E83 E46 Battery Cable Holder Mounting B Base Trim Carrier 8385159

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6944536

BMW E61 Touring Positive Battery Cable Plus Pole Lead 6944536

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9342881-1

BMW F20 F21 F30 F31 Telematics Control Unit Module TCU SOS 9342881

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8586571-1

BMW F20 F30 LCI B47 Engine Gearbox Module Wiring Cable Loom Harness 8586571

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6873289

BMW X3 F25 X4 F26 Blind Spot Lane Change Module Radar Sensor Left N/S 6873289

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A0FAE3

BMW G26 Earth Ground Cable Negative Battery Lead Wiring 5A0FAE3

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8506444-1

BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key

€332.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2383676

Battery Cable BMW F22 Negative Earth Cable Minus Electrical Wire 7625999

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9380203

BMW G30 G31 G32 G11 G12 Cable Wiring Harness Holder Guide Mount 9380203

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7836126

BMW 5 6 E60 E61N M5 E63 E64 M6 Outlet Camshaft Exhaust Cylinders 6-10 126/A2

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9228495

BMW F07 GT ECU Body Control Module Junction Box V12 PL2 JBBFE III 9228495

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A4FF06

BMW U06 X1 U11 Antenna Amplifier Diversity Aerial Module Control Unit 5A4FF06

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8621490

Alternator Cable BMW F21 F22 F30 LCI 125i 220i 228i 320i N20 Starter 8621490

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9276029

BMW F07 GT LCI Antenna Amplifier Signal Booster Control Unit Module ECU 9276029

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7806976-5

BMW X5 E70 3.0d M57N2 235HP Engine Unit ECU Kit DDE 7806976 CAS3 Key Automatic

€332.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8585384-1

BMW X4 F26 X5 F15 N57 Diesel Engine Control ECU Kit Set 8585384 Automatic

€393.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9221953

BMW X5 E70 Interior Inner Wiring Loom Harness Cable 9221953

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4030026

BMW Z4 E85 Xenon Headlight Resistor Ballast Relay Module Unit 4030026

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8091664

Baterry Cable Bracket BMW X3M F97 X4M F98 S58 Alternator Wire Holder 8091664

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9171900

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

€360.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9343686

Control Unit BMW F01 F07 F10 F11 F25 Air Module ECU Unit Continental 9343686

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9134646

Seat Module BMW E65 E66 Front Seat Control Unit Module ECU 9134646

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8483816

BMW X3 G01 X4 G02 Cable Alternator Starter Base B Wire Line 8483816

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6860182

BMW F30 F31 F34 Acc Sensor Distronic Radar Module Unit 66316860182

€393.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7789263

BMW E60 LCI Engine Wiring Loom Harness Cable Plug Connector 7789263

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7578020-8

BMW E93 N53 Engine Petrol 218HP ECU Control Unit Kit DME 7578020 + Key Automatic

€313.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A70A69

BMW F40 Parking Module Comfort Control Unit ECU 5A70A69

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9318368

BMW X3 F25 F06 F06N F07 F07N F10 F10N F11 CAS4 Comfort Control Module 9318368

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8387568-1

BMW E65 Battery B Engine Compartment Terminal Point Cover 8387568

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8730190

BMW G30 G31 Rear Door Wiring Loom Harness Cable Right O/S 8730190

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8576341-4

BMW F20 F21 F30 F31 118d 318d 143HP N47N ECU Kit DDE 8576341 + Key + FEM

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7644747

BMW F10 F11 F30 Petrol N20 ECU DME Engine Control Unit Module 7644747 Manual

€398.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7649938

BMW Z4 Series E89 Roadster Wiring Loom Harness Engine Gearbox Module Petrol N20

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9364817

BMW X1 E84 ECU Body Comfort Control Module Junction Box PL2RR JBBFE IIIR 9364817

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6833256-1

BMW G20 G21 G28 Pedestrian Protection Crash Sensor Unit Module 6833256

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8793253

BMW X3 G01 Rear Right O/S Door Wiring 8793253

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9315981

BMW F33 F33 LCI Seat Wire Harness Cable Loom Front Right O/S 9315981

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9278358

BMW F20 F21 F22 F87 Windscreen Camera Front Window KaFAS Camera 9278358

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9153135

BMW F01 F02 F03 Holder Bracket Control Unit Amplifier 9153135

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9350332

Head Unit BMW F30 F31 F32 X3 F25 Navigation Sat Nav Basic Media Player 9350332

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9436288

BMW G20 G21 Door Wiring Loom Harness Cable Rear Left N/S 9436288 9436287

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A18364

BMW F40 Heater Air Conditioning System Control Unit Module ECU 5A18364

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A1D0B1

BMW F70 U06 Comfort Access Antenna Keyless Entry Interior Aerial Module 5A1D0B1

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6938218

BMW 3 Series E90 E91 M3 Wiring Loom Front Door Left Passenger Side 6938218

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A07858

BMW G01 G11 G12 G30 G31 F98 X4M Air Conditioning Control Unit Module 5A07858

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A4FEA0

BMW F74 Gran Coupé Manual Transmission Gearbox TCU Module B38N 7HDT400M 5A4FEA0

€303.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8572418-2

BMW X3 F25 Diesel 2.0dX 184HP N47N Engine ECU Kit DDE 8572418 Key CAS4 Automatic

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7953075

BMW F70 F74 X1 U11 X2 U10 Mini F65 F66 Battery Alternator Starter Cable 7953075

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8512047-7

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

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9175883

BMW E60 E60 LCI E61 E61 LCI Front Door Wire Harness Loom Passenger Side 9175883

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2240952

BMW E60 E61 MINI R50 Rear Bumper PDC Ultrasonic Sensor Hyper Blue

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8602994

BMW 1 X1 X2 Series F39 F40 F48 Mini Cooper One F55 F56 Earth Cable Wire 8602994

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9263790

BMW X6 E71 Footwell Light Xenon Control Module Unit LEAR FRM3R XE 9263790

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9262361

BMW E60 E81 E87 E90 E91 E92 E93 CAS3 Control Unit Key Reading Module 9262361

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9343304

BMW X5 F15 X4 F26 Antenna Aerial Diversity Trap Circuit Control Module 9343304

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9221863

BMW X5 X6 E70 E71 Front Seat Control Module Unit Left Right N/O/S 9221863

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8779030

BMW G30 G31 Body Control Comfort Module Unit FEM ECU V05 8779030

€569.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9337205

BMW F32 Door Wiring Front Door Right Loom Cable Wiring Harness 9337205

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8509036-9

BMW E92 LCI Engine Control ECU 3.0 Diesel 335d M57N2 306D5 Automatic 8509036 Kit

€569.95

Free delivery: Nov 12 – 13

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

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6798872-2

BMW F10 F11 F30 F31 Wheel Electronics Module RDC 433MHZ Control Unit X2 6798872

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8576341-14

BMW F20 F21 F30 F31 118d 318d Engine Control ECU DDE Kit FEM Key 8576341 Manual

€161.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6934011

BMW 7 Series E65 E66 Cable Harness Loom Front Door Wiring Left N/S 6934010

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6819936

BMW F30 F31 F32 F15 F16 Rear Door Card Light Lamp LED Wiring Harness 6819936

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6812250

BMW X1 F48 Door Wiring Loom Harness Cable Front Passenger Side N/O/S 6812250

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7253188

BMW E92 Sport Seat Left Right Thigh Support Heated Cover Trim Leather Dakota

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9118262

Antenna Amplifier BMW F10 F22 F30 F32 Module Trap Circuit Control Unit 9118262

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B4D4A9

BMW X1 U11 B38X 245HP xDrive Engine Control ECU DME 5B4D4A9 Automatic

€807.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9326452

Door Wiring Harness BMW F34 Rear Left Right Door N/O/S Wiring Loom 9326452

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9252812

BMW F10 F11 F01 Fuse Box Power Distribution Junction Relay Rear 9252812

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8067511

BMW F98 Adapter Cable Wiring RBS Rear Axle 8067511

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6819934

BMW X5 F15 X6 F16 Front Door Card Light Wiring Loom Left Right N/O/S 6819934

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9323378

BMW X5 F15 X6 F16 Front Door Card Wiring Loom Harness Cable Left N/S 9323378

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9348356

BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9348356

€118.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6958414

BMW E60 E61 Alarm System Unit Ultra Sonic Module 9149673

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6863386

BMW F33 ICM Control Unit Module ECU 6863386

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8582280-11

BMW F20 F30 F31 118d 318d N47N 143HP Engine Unit ECU DDE Kit 8582280 FEM + Key

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

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