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.

More information

Find it faster

Match to your vehicle

Make

BMW F20 F21 Front Door Wiring Harness Cable Right O/S 9291954

Product currently unavailable

Part no. A0009053902

Mercedes GL W166 Surround View Camera Front Control Unit Module A0009053902

Product currently unavailable

BMW X5 E70 Radio Navigation CCC Professional CD Player Head Unit 9185542

-0%

Part no. 9185542-2

BMW X5 E70 Radio Navigation CCC Professional CD Player Head Unit 9185542

Product currently unavailable

Part no. 83A947356A

Audi Q3 F3 LED Front Door LED Lighting Module Control Unit Right O/S 83A947356A

Product currently unavailable

Part no. A2118701826

Seat Module Mercedes W203 W211 Control Unit Front Left Right N/O/S A2118701826

Product currently unavailable

Part no. HPLA-14N030-AB

Land Rover Range Rover Mk4 L405 Rear Fuse Box Board 3.0 TDV6 HPLA-14N030-AB

Product currently unavailable

Part no. 6926472

BMW E65 E66 E67 Phone Transmitter Receiver Module ECU SIEMENS 6926472

Product currently unavailable

Part no. 1K0971349CB

Volkswagen Golf Mk6 Audi A3 8P Alternator Wiring Harness 2.0 TDI 1K0971349CB

Product currently unavailable

Part no. HK83-14A390-AAA

Range Rover Velar L560 Jaguar F-Pace X761 Fuse Box Cover Lid HK83-14A390-AAA

Product currently unavailable

Part no. M8A2-14B518-AB

Range Rover Velar L560 Door Wiring Loom Cable Front Right O/S M8A2-14B518-AB

Product currently unavailable

Part no. 7515391

Starter BMW E60 Starter Motor Bosch 7515391 0001108401

Product currently unavailable

Part no. 5Q0906121S

Volkswagen Golf Mk7 Mk8 Fuel Pump Control Unit Module 1.6 TDI 5Q0906121S

Product currently unavailable

Part no. A1121510001

Mercedes W203 W211 W220 W221 Starter Motor M113 Petrol Engine A1121510001

Product currently unavailable

Part no. 04L903023L-1

VW Tiguan 5n Audi Q3 8U A3 8V Alternator Generator 14V 140A 2.0 TDI 04L903023L

Product currently unavailable

Part no. 7561684

BMW 3 5 Series E60 E90 DME Petrol N52 Engine Control Unit ECU 7561684 Manual

Product currently unavailable

Part no. M8A2-14A390-KA

Range Rover Velar L560 Batter Wiring Loom Connector Plug M8A2-14A390-KA

Product currently unavailable

Part no. 8483814

BMW G20 Starter Wiring Battery Alternator Cable Harness Loom 8483814

Product currently unavailable

Part no. 3D0907040H

VW Volkswagen Phaeton 3D Climate Air Conditioning Control Module Unit 3D0907040H

Product currently unavailable

Part no. 9.66448E+11

Peugeot 207 Display Screen Dashboard Multifunction Monitor Unit 966448398000

Product currently unavailable

Part no. 8W0971227D

Audi S5 F5 Positive Battery Wiring Harness Cable 3.0 TDI Diesel 8W0971227D

Product currently unavailable

Part no. A2054403136

Mercedes C300h W205 Prefuse Box Cable Harness Loom Cable A2054403136

Product currently unavailable

Part no. 9G9T14B533AC

Mercedes W204 Front Door Control Unit Module Right O/S 9G9T-14B533-AC

Product currently unavailable

Part no. Bosch S5 008 77Ah Accumulator

Bosch S5 008 Accumulator Battery 77Ah 780A 12V

Product currently unavailable

Part no. A1698700689-3

Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698700689

Product currently unavailable

Part no. 8T0035619

Audi A4 B8 A5 S5 8T Bluetooth Control ECU Housing Cover Box Support 8T0035619

Product currently unavailable

Part no. 8XA971679C

Audi A1 8X Dashboard Glove Box Wiring Loom Cable Storage Harness 8XA971679C

Product currently unavailable

Part no. GJ6A66830

Ford Ranger Mk4 BT-50 Flasher Relay Unit Sensor 12.8V Imasen GJ6A66830

Product currently unavailable

Part no. 7P5971121CT

Porsche Cayenne 92A Front Door Wiring Harness Cable Loom 7P5971121CT

Product currently unavailable

Part no. A2218210197

Mercedes W221 Cover Wiring Cable Front Door Protection Seal Sleeve A2218210197

Product currently unavailable

Part no. A1635403033

Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635403033

Product currently unavailable

Part no. 9661191580

Peugeot 308 Citroen Berlingo Negative Battery Terminal Cable Wiring 9661191580

Product currently unavailable

Part no. 7L5035741G

Porsche Cayenne 9PA Telephone Phone Control Unit Module 7L5035741G

Product currently unavailable

Part no. 4G9945093B-2

Audi A6 C7 Rear Tailgate Inner Light Lamp Wiring Cable Left N/S 4G9945093B

Product currently unavailable

Part no. 4G5971035CA

Audi S6 C7 Door Wire Wiring Harness Loom Cable Front Driver Side 4G5971035CA

Product currently unavailable

Part no. 8578946

BMW F20 F30 F32 120d 320d 420d N47N Engine ECU Kit DDE 8578946 FEM Key Manual

Product currently unavailable

Part no. EH22-01444-BB

Land Rover Discovery 4 L319 Battery Pad Cover Panel EH22-01444-BB

Product currently unavailable

Part no. 8W0970599

Audi A4 B9 Q6 FY Glow Plug Control Relay 2.0 TDI Diesel 8W0907599

Product currently unavailable

Part no. YWQ100031

Land Rover Freelander L314 Interface Audio Navigation Control Module YWQ100031

Product currently unavailable

Part no. FK72-18K812-CH

Land Rover Discovery Sport L550 Radio Sat Nav Head Unit FK72-18K812-CH

Product currently unavailable

Part no. 7P5945095F-2

Porsche Cayenne 92A 958 Rear Tail Light Lamp Wiring Harness Left N/S 7P5945095F

Product currently unavailable

Part no. 1811631-1

Ford Mondeo Mk4 Xenon Headlight Wiring Harness Cable Right O/S BS71-13006-BF

Product currently unavailable

Part no. A1665408909

Mercedes ML W166 Diesel OM642 Engine Automatic Transmission Wiring Harness

Product currently unavailable

Part no. 8V21-11000-AE

Ford Transit Connect Mk2 Diesel Starter Motor 8V21-11000-AE

Product currently unavailable

Part no. 7PP959760F

Porsche Cayenne S 92a Front Seat Memory Control Module ECU 7PP959760F

Product currently unavailable

Part no. A2044408010

Mercedes W204 C207 Front Axle Brake Sensor Wiring Loom Right O/S A2044408010

Product currently unavailable

Part no. 5Q1937084

Skoda Karoq Kodiaq Audi Q2 Q3 RSQ3 Body Control Module Unit BCM ECU 5Q1937084

Product currently unavailable

Part no. 7E0937503B

VW Volkswagen Transporter T5 Engine Bay Fuse Box Relay Plate 2.5 TDI 7E0937503B

Product currently unavailable

Part no. 04L903021G

Audi Q2 GA Diesel Engine Alternator Generator Assembly Bosch 04L903024T

Product currently unavailable

Part no. 3C8941753R-2

Volkswagen Passat CC Front Headlight Wiring Harness Cable Left N/S 3C8941753R

Product currently unavailable

Part no. 6J0907159A

Seat Ibiza Mk4 Cupra Sound Impact Control Module 1.4 TSI Petrol 6J0907159A

Product currently unavailable

Part no. rhd-6917642

BMW 7 Series E65 E66 Bracket For Module Unit ECU 6917642

Product currently unavailable

Part no. 31100-PSA-013

Honda Stream S Alternator Generator 31100-PSA-013

Product currently unavailable

Part no. 9811263

Mini Cooper R60 Wiring Loom Front Door Cables Passenger Side 9811263

Product currently unavailable

Part no. 9674436980

Rain Sensor Peugeot 3008 5008 Citroen C5 Windscreen Light Unit 9674436980

Product currently unavailable

Part no. 03G906016JD

Audi A4 B7 2.0 TDI Diesel Engine Control Unit ECU Module Manual 03G906016JD

Product currently unavailable

Part no. 9651197480

Peugeot 307 Body Control Comfort Unit Module BSI Fuse Box 9651197480

Product currently unavailable

Part no. 9683140380

Air Intake Duct Peugeot 3008 Air Intake Channel Unit Duct 9683140380

Product currently unavailable

Part no. 1871861

Ford Focus Mk3 Fiesta Mk7 Alternator Generator Valeo 120A AVN-10300-HA

Product currently unavailable

Part no. 2HJ962211N

Volkswagen Amarok Mk2 Engine Earth Ground Wiring Harnes Cable MB3T-18C942-BF

Product currently unavailable

Part no. H1BT-14B533-BG

Ford Fiesta Mk8 Door Control Module Unit ECU Front Passenger Side H1BT-14B533-BG

Product currently unavailable

Part no. 8E0035423-1

Audi A4 RS4 B7 Tweeter Speaker Door Front Left N/S Trim Kamut Beige 8E0035423

Product currently unavailable

Part no. 8T0035613

Audi A4 S4 RS4 B8 A5 S5 8T Telephone Control ECU Housing Cover Lid 8T0035613

Product currently unavailable

Part no. A6511502620

Mercedes W906 OM651.955 Diesel Engine Wiring Harness Loom Cable A6511502620

Product currently unavailable

Part no. 9112580

BMW X6 Series E71 Holder Bracket Control Unit Amplifier 9112580

Product currently unavailable

Part no. LR014265

Land Rover Discovery 4 L319 Fuse Box Fusebox Fuse Panel Cover LR014265

Product currently unavailable

Part no. AH22-2C496-AE-1

Land Rover Discovery 4 L319 Electric Handbrake Control Unit Module AH22-2C496-AE

Product currently unavailable

Part no. A2208201317

Mercedes-Benz S-Class W220 Tailgate Boot ECU Control Unit Module A2208201317

Product currently unavailable

Part no. 0AD927755AD

Porsche Cayenne 955 9PA Transfer Box Control Unit Module ECU 0AD927755AD

Product currently unavailable

Part no. 1720325

Ford Ranger Mk3 2.2 TDCI Diesel Starter Motor AB39-11000-AA

Product currently unavailable

Part no. A4515400450

Smart 451 SAM Fuse Box Control Unit Module A4515400450

Product currently unavailable

Part no. 3457490-1

Mini Cooper Paceman R61 High SPEG Fuse Distribution Box H4 3457490

Product currently unavailable

Part no. 8V5T-14B192-AA-1

Ford Fiesta Mk7 Relay 4-Pin FoMoCo Unit 8V5T-14B192-AA

Product currently unavailable

Part no. 83A947356C

Audi Q3 F3 LED Front Door LED Lighting Module Control Unit Right O/S 83A947356C

Product currently unavailable

Part no. A2139000718

Mercedes W213 Front Door Control Unit Module Left N/S A2139000718

Product currently unavailable

Part no. 9229989

BMW F07 GT Cable Loom Door Rear Left Right N/O/S Wiring Harness 9210135

Product currently unavailable

Part no. A6519003403-4

Mercedes Sprinter W906 OM651.955 163HP Engine Unit Module ECU A6519003403 Manual

Product currently unavailable

Part no. 8611709

BMW F10 F12 F13 M5 M6 S63N 560HP ECU Control Unit Module DDE 8611709 Twin-Clutch

Product currently unavailable

Part no. A2469067200

Fuse Box Mercedes CLA C117 X156 W176 W246 Relay Unit A2469067200

Product currently unavailable

Part no. 022971615B

Audi TT 8J 3.2 V6 BUB Ignition Wiring Harness Guide Trim 022971615B

Product currently unavailable

Part no. 7H0805283D

VW Volkswagen Transporter T5 Battery Console Holder Support Mount 7H0805283D

Product currently unavailable

Part no. 7H0959243J

VW Volkswagen Transporter T5 Body Convenience Control Module ECU 7H0959243J

Product currently unavailable

Part no. 46867282

Vauxhall Movano C Electric Wire Harness Loom Cable Wiring Connector 46867282

Product currently unavailable

Part no. A6519009901-1

Mercedes W212 E220CDI OM651.924 Engine Unit Module ECU Kit Key A6519009901

Product currently unavailable

Part no. 9345321

BMW F01 F02 Body Control Module Junction Box ECU 9345321

Product currently unavailable

Part no. 4M0971349Q

Audi Q7 4M Electric Alternator Starter Positive Wiring Harness Cable 4M0971349Q

Product currently unavailable

Part no. 7591529

BMW F12 F13 F20 F21 Alternator Generator 14V 210A N55 Petrol Engine 7591529

Product currently unavailable

Part no. BK2T-14B144-BA

Ford Transit Mk8 Battery Fuse Box Holder Housing 2.2 TDCi Diesel BK2T-14B144-BA

Product currently unavailable

Part no. 8W0971237J

Audi S5 F5 Earth Line Wiring Cable 3.0 TDI Quattro 8W0971237J

Product currently unavailable

Part no. G2412-154530-B

VW Amarok Mk2 Headlight Headlamp Control Unit Module Sensor G2412-154530-B

Product currently unavailable

Part no. AV6N-10C679-BB

Ford Focus Mk3 Negative Battery Terminal Cable Electrical Wiring AV6N-10C679-BB

Product currently unavailable

Part no. A0009067703

Mercedes W213 M274 Petrol Three Phase Engine Alternator Generator A0009067703

Product currently unavailable

Part no. 2680492

Ford Kuga Mk3 Alarm Signal Control Module ECU LJ6T-14G113-JB

Product currently unavailable

Part no. 6C1T14B056AE

Ford Transit MK7 Airbag Module ECU Control Unit Air Bag 6C1T14B056AE

Product currently unavailable

Part no. 8K0907064EB

Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907064EB

Product currently unavailable

Part no. CPLA-17D547-AN

Land Rover Discovery Sport L550 Windscreen Rain Sensor Module CPLA-17D547-AN

Product currently unavailable

Part no. 2118139

Land Rover Discovery 4 L319 Front Seat Controle Motor Left N/S 2118139

Product currently unavailable

Part no. 1J0971243B

Audi TT 8N Battery Negative - Earth Cable Wiring Harness Cable 1J0971243B

Product currently unavailable

Part no. 7810950-8

BMW E60 E61 LCI 530d M57N2 232HP Engine Control ECU Kit DDE 7810950 Automatic

Product currently unavailable

Part no. 9251979

BMW X3 F25 Footwell Light Module Control Unit FRMIII 9251979

Product currently unavailable

...

Showing 26137-26235 of 28629 products