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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Mercedes Sprinter W907 W910 Control Unit Module ECU A9079005303

€89.95

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Part no. 7599881-21

BMW E87 LCI E90 E91 118i 318i N43 143HP Engine ECU KIT DME 7599881 Manual

€80.95

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Part no. 9284282

BMW F10 Body Control Module ECU Junction Box PL6 JBBFE III V2 9284282

€23.95

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Part no. 9152262-1

BMW X5 X6 E70 E71 Front Impact Crash Sensor Module 9152262

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5WA962132

Volkswagen Golf Mk8 Antenna Amplifier Transmitter Receiver Module ECU 5WA962132

€23.95

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Part no. 6948692

BMW E60 E61 E63 Passenger Side Door Airbag Control Module 6948692

€23.95

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Part no. YMQ501631

Land Rover Discovery 3 L319 Rear Parking Sensor Wiring Loom Harness 4H2214A614MA

€28.95

Free delivery: Nov 12 – 13

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Part no. 7823731

BMW E84 E90 E91 LCI 320xd N47 Cable Alternator Starter Base B

€23.95

Free delivery: Nov 12 – 13

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Part no. 4F0971547

Audi A6 C6 Cable Wiring Loom Heater Matrix Air Conditioning Cable 4F0971547

€23.95

Free delivery: Nov 12 – 13

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Part no. 5G0945096Q-1

Volkswagen Golf 5G Rear Tail Light Wire Plug Socket Cable Right O/S 5G0945096Q

€23.95

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Part no. 8H0951178

Audi A4 B7 Cabrio Alarm Signal Body Control Sensor Module Unit 8H0951178

€23.95

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Part no. 8X0907063K

Audi A1 8X Body Control Module Unit ECU 8X0907063K

€23.95

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Part no. 5C0959655F

Volkswagen Jetta Mk6 A6 Air Module Control Unit ECU 5C0959655F

€80.95

Free delivery: Nov 12 – 13

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Part no. A1765405608

Mercedes-Benz A-Class W176 Rear Right Door Wiring Cable A1765405608

€23.95

Free delivery: Nov 12 – 13

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Part no. 7638477

Ignition Coil BMW E81 E87N LCI E90 E91 E92 F10 F11 Bosch 7638477

€23.95

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Part no. 9314837

Wiring BMW X5 F15 M Sport Rear Park Assist PDC Wiring Harness Loom 9314837

€61.95

Free delivery: Nov 12 – 13

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Part no. 8638588

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

€23.95

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Part no. A2055409309

Door Wiring Mercedes W205 C253 Passenger Side Cable Harness Loom A2055409309

€23.95

Free delivery: Nov 12 – 13

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Part no. 8P0971679L

Audi A3 8P Dashboard Glove Box Wiring Loom Harness 8P0971679L

€23.95

Free delivery: Nov 12 – 13

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Part no. CV6T-14B533-DB

Ford Kuga C520 Front Door Module Control Unit Passenger Side N/S CV6T-14B531-DB

€23.95

Free delivery: Nov 12 – 13

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Part no. GX63-15C859-DG

Range Rover Evoque L538 PDC Parking Distance Control Module GX63-15C859-DG

€23.95

Free delivery: Nov 12 – 13

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Part no. 8E0959651A

Audi A4 B7 Front Crash Impact Air Module Sensor Unit Module 8E0959651A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X0907063AF

Audi Q3 S Line BCM Body Control Module Unit ECU 8X0907063AF

€85.95

Free delivery: Nov 12 – 13

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Part no. 9118729

BMW E60 E61 Body Gateway Module KGM HIGH 9118729

€23.95

Free delivery: Nov 12 – 13

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Part no. 9159129

Head Unit BMW X3 E83 Z4 E85 Mini R50 DVD GPS Navigation System Computer 9159129

€85.95

Free delivery: Nov 12 – 13

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Part no. A0009005602

Mercedes W204 W212 Control Unit AMG Drive Select Module ECU A0009005602

€61.95

Free delivery: Nov 12 – 13

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Part no. 9229872-2

BMW E92 LCI Body Control Module ECU Junction Box L1 PL2RR JBBFE IIIR 9229872

€23.95

Free delivery: Nov 12 – 13

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Part no. 5Q0959655BK

Volkswagen Golf Mk7 Air Module ECU Control Module 5Q0959655BK

€170.95

Free delivery: Nov 12 – 13

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Part no. 6951674-AW

BMW E81 E87 E90 PDC Parking Sensor Ultrasonic Alpine White 3 - 300 6951674

€23.95

Free delivery: Nov 12 – 13

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Part no. 5K4971694AJ

Volkswagen Golf Mk6 Door Wiring Loom Harness Rear Right O/S 5K4971694AJ

€23.95

Free delivery: Nov 12 – 13

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Part no. 8636069

BMW F20 F30 LCI B48 Engine Gearbox Module Wiring Cable Loom Harness 8636069

€85.95

Free delivery: Nov 12 – 13

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Part no. 8574024

Engine Wiring BMW F30 F31 335dX N57Z Automatic Gearbox Cable Harness 8574024

€37.95

Free delivery: Nov 12 – 13

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Part no. A1645400436

Mercedes ML164 Alternator Wiring Starter Motor Harness OM642 A1645400436

€28.95

Free delivery: Nov 12 – 13

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Part no. 8373901

BMW 5 7 X5 E38 E39 E53 Steering Column Adjuster Switch Stalk 8373901

€23.95

Free delivery: Nov 12 – 13

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Part no. 9868383

BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9868383

€66.95

Free delivery: Nov 12 – 13

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Part no. A2125402705

Mercedes W212 Rear Suspension Level Sensor Wiring Loom Cable Harness A2125402705

€23.95

Free delivery: Nov 12 – 13

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Part no. 8512415-1

Mini Cooper D R55 R56 LCI N47N 112HP Diesel Engine ECU Kit DDE 8512415 CAS3 Key

€227.95

Free delivery: Nov 12 – 13

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Part no. 8K0959795C

Audi A4 B8 Door Module Rear Left Right N/O/S Control Unit Module ECU 8K0959795C

€23.95

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Part no. 5A03277

BMW F40 KaFAS Camera Module Unit 5A03277 130441

€108.95

Free delivery: Nov 12 – 13

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Part no. 80A971687H

Audi Q5 FY Rear Door Wiring Harness Loom Cable Left Right N/O/S 80A971687H

€37.95

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Part no. 8621840

BMW 1 3 Series F20 F21 F30 LCI Starter Motor Engine 8621840

€56.95

Free delivery: Nov 12 – 13

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Part no. 8P0971679K

Audi A3 S3 8P Dashboard Glove Box Wiring Loom Cable Harness 8P0971679K

€23.95

Free delivery: Nov 12 – 13

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Part no. 8E0959651

Audi A4 S4 B6 A7 4B Crash Impact Sensor 8E0959651

€23.95

Free delivery: Nov 12 – 13

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Part no. 6879833

Air Module BMW F20 F21 F22 F30 F31 ECU ICM Control Unit ECU 6879833

€23.95

Free delivery: Nov 12 – 13

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Part no. A2038204002

Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002

€23.95

Free delivery: Nov 12 – 13

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Part no. 2992478-3

Plug Socket BMW X1 E84 Rear Light In The Side Panel Right O/S Wiring 6984754

€80.95

Free delivery: Nov 12 – 13

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Part no. A1695406945

Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715405145

€32.95

Free delivery: Nov 12 – 13

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Part no. 7835548

BMW 5 6 Series E60 E61 LCI E63 E64 M5 M6 Earth Cable Starter Battery 7835548

€26.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GPLA-14F498-AA

Range Rover Sport L494 Air Conditioning Heater Control Module ECU GPLA-14F498-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6511590246

Wiring Cable Cover Mercedes W204 W212 W906 OM651 Engine Duct Bracket A6511590246

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3449505

Mini Cooper One R55 R56 Fuse Distribution Box Cover Trim Cap 3449505

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6958358

BMW 5 X5 Series E39 E53 Hands-free Electronics Charging Module MULF 6958358

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1715408405

Mercedes R171 Seat Adjuster Wiring Loom Harness Driver Side A1715408405

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7259877

Third Stoplamp Cover BMW F30 F80 M3 Rear Stop Lamp Brake Trim 7259877

€23.95

Free delivery: Nov 12 – 13

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Part no. 9205962-1

BMW 3 Series E90 Radio Professional CD Audio Player Control Unit 9205962

€108.95

Free delivery: Nov 12 – 13

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Part no. 6799083

Control Unit BMW F10 F11 X3 F25 Parking Brake Handbrake Module EMF 6799083

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6856283

BMW F30 F31 Lane Change Wiring Sensor Module Master Right O/S HC-2 6856283

€104.95

Free delivery: Nov 12 – 13

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Part no. 9387226

Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 9387226

€161.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0131545602

Mercedes W204 W212 Alternator Generator M272 180A 14V Petrol Engine A0131545602

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6927000

BMW E63 E64 Amplifier Holder Catch Bracket Video Module 6927000

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0025427419

Mercedes-Benz A B E M W169 W245 W210 W163 Relay 5-Pin Yellow Hella A0025427419

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0971228H

Audi A4 B8 3.0 TDI Starter Alternator Wiring Loom Cable Harness 8K0971228H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0907468F

Audi A5 8T Gateway Control Module Unit ECU 8T0907468F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0035186AN

Volkswagen Caddy 2K Mk3 Radio Head Unit Media Player Unit 1K0035186AN

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129006924

Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6922854

BMW X3 X5 Series E53 E83 Cruise Control Air Flow Switch Steering Wheel 6922854

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2754241-1

BMW MINI Cooper R55 R56 R57 R60 Engine Computer Mount Support Bracket Holder

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9259800

BMW F10 F12 F13 F20 F30 F06 Mini F55 F56 F57 DVD CD Changer Control Unit 9259800

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2115452301

Mercedes-Benz E-Class S211 W211 Fuse Box Terminal Connection Unit A2115452301

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2034404913

Mercedes-Benz CLC CL203 Rear Tailgate Boot Lid Wiring Harness Loom A2034404913

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9360357-1

Door Wiring Mini F55 F56 R60 Rear Right Left N/O/S Harness Loom Cable 9360357

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129006824

Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7565300-2

BMW Z4 E85 2.0i N46 150HP ECU Control Unit Module Kit DME 7565300 EWS Key Manual

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7951069

KaFAS Camera BMW F45 Front Camera Control Unit Module 9384688

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9282286

BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 MID 9282286

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6878198

BMW F20 F21 F25 F30 F31 ECU Air Module Crash Control Unit ICM 6878198

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9209758

BMW X5 Z4 E89 E70 Mini Cooper R56 R57 CD Changer Multichanger 9209758

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2049000607

Mercedes W204 W207 Air Suspension Module Regulation Control Unit A2049000607

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L0907719A

Volkswagen Touareg Anti Theft Alarm System Control Module Unit ECU 7L0907719A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2529636

Ford Transit Custom Engine Starter Motor 2.0 EcoBlue GK2T-11000-BC

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2465410105

Battery Cover Mercedes C117 W176 W246 Frame Bracket Mount Holder A2465410105

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7191718

BMW Z4 Series E89 Roadster Cabrio Horn High Tone 7191718

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6992415

BMW 7 F02 ECU Body Control Module Junction Box JBBFEIIIR LP 6992415

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9259354

BMW F10 F20 F30 Camera Module Reversing Rear View Camera Control 9259354

€94.95

Free delivery: Nov 12 – 13

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Part no. 9322122-1

Display Screen BMW F20 F21 F22 Central Information Sat Nav Monitor 6,5" 9322122

€32.95

Free delivery: Nov 12 – 13

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Part no. 7641652-1

Engine Wiring BMW F10 F31 F32 N20 Engine Sensor Module 1 Harness 7641652

€47.95

Free delivery: Nov 12 – 13

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Part no. 0AM911023J

Volkswagen Golf Mk7 VII Engine Starter Motor Assembly Unit 0AM911023J

€28.95

Free delivery: Nov 12 – 13

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Part no. 3T0837202L

Skoda Fabia 5j Flip Key Remote Control 3 Button Foldable Transponder 3T0837202L

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6855990

BMW X3 F25 ICM Control Unit Air Module SRS ECU 6855990

€42.95

Free delivery: Nov 12 – 13

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Part no. 1472984-2

Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 5-Pin Black Relay Wiper Set 1472984

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8S0963553D

Volkswagen Skoda Seat Audi Seat Pressure Sensor Front Passenger Side 8S0963553D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2649000700-2

Mercedes W205 C 200 264915 264.915 184HP Engine ECU Module A2649000700 Automatic

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059007123

Mercedes W176 W212 W246 Telematics Communication Control Unit Module A2059007123

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9079000304

Mercedes Sprinter W907 W910 Air Module Sensor Unit ECU A9079000304

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7209145

BMW E64 E64N Cabrio Convertible Folding Top Roof ECU Module 6969008

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469000709

Mercedes W246 Air Module Control Unit ECU Module A2469000709

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8593105

BMW G30 G11 G14 Diesel B57 Wiring Glow Plugs Module Wiring Harness 8593105

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6964140

BMW 7 Series E65 E66 Control Unit Door Rear Passenger Side 6933264

€23.95

Free delivery: Nov 12 – 13

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Part no. 9145400

BMW E60 E61 E63 E85 Air Module Control Unit Module ECU ACSM 9145400

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

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