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

Mini Cooper SD R60 R61 ALL4 N47N 143HP ECU Kit DDE 8519663 CAS3 Key Manual

€194.95

Part no. W164-JUNSUN

Mercedes W164 X164 Junsun Car Radio 10.1"Android CarPlay 32GB XT8191CX-F

€170.95

Part no. 9118611

BMW Z4 E86 Hifi Audio Sound AMP Amplifier Module 9118611

€574.95

Part no. 059907309AC-1

Audi Q7 4M 3.0 TDI DPXA 286HP Quattro Engine Control ECU 059907309AC Automatic

€550.95

Part no. A2128208826

Mercedes W212 Door Control Module Unit ECU Rear Right O/S A2128208826

€23.95

Part no. A2048700594-1

Mercedes W204 Radio Player COMAND Navi CD Head Unit A2048700594

€94.95

Part no. 7L0907719

Volkswagen Touareg 7L Anti Theft Alarm System Control Module Unit ECU 7L0907719

€23.95

Part no. EB3T-14603-A

Ford Ranger Mk3 T6 Positive Battery Cable Lead Terminal Harness EB3T-14603-A

€23.95

Part no. FK72-14E112-AB

Land Rover Discovery Sport L550 Rear Bumper PDC Control Module FK72-14E112-AB

€23.95

Part no. 8647878

BMW X5 F15 N20 Petrol Sensor System Engine Wiring Harness Cable Loom 8647878

€175.95

Part no. LR047573

Range Rover Evoque L538 2.2 TDCI Starter Motor EJ3211001AB

€37.95

Part no. AH42-14D374-AF

Land Rover Range Rover L322 Air Module Control Unit AH42-14D374-AF

€47.95

Part no. A2389055000

Mercedes W205 Antenna Aerial Amplifier Duplexer Module Receiver Unit A2389055000

€23.95

Part no. A2055402850

C205 Fuse Box Mercedes C205 Electrical Interior Relay Fuse Socket Control A2055402850

€23.95

Part no. 9224177-1

BMW F10 F11 F12 F13 F15 F16 Air Module Crash Sensor 9224177

€23.95

Part no. 9128569-2

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

€23.95

Part no. 4M0959792E

Audi A5 F5 Door Module Control Unit ECU Front Passenger Side 4M0959792E

€28.95

Part no. 6863385

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6863385

€28.95

Part no. A2139004625

Mercedes W213 C238 C253 C257 Air Module Control ECU Sensor A2139004625

€80.95

Part no. HPLA-70011-AB

Range Rover Sport L494 Battery Cable Wire Positive Lead HPLA-70011-AB

€47.95

Part no. A2429004801

Mercedes W176 W204 W212 Telematics Communication Control Unit Module A2429004801

€23.95

Part no. 8T0971029S

Audi A5 8T Door Wiring Loom Harness Cable Front Left N/S 8T0971029S

€42.95

Part no. YMZ500810C

Land Rover Range Rover Sport L320 Towing Wiring Loom Harness Cable YMZ500810C

€37.95

Part no. 5QF802717A

Audi RSQ3 F3 Battery Holder Cover Bracket Mount Retainer Lid Top 5QF802717A

€23.95

Part no. A6081550035

Mercedes W177 Alternator Mounting Bracket Carrier A6081550035

€66.95

Part no. 5F4971035AE

Seat Leon Mk3 5F Door Wiring Loom Cable Front Driver Side O/S 5F4971035AE

€23.95

Part no. 3Q0959435P

Skoda Kamiq NW Karoq ND VW Passat 3G Keyless Entry Control Module ECU 3Q0959435P

€23.95

Part no. 46354796

Vauxhall Movano C 2.2 BlueHDI B22LUE 140HP Engine ECU Unit 46354796 Manual

€664.95

Part no. 14B296AA

Ford Transit Connect Yaw Sensor ESP Speed Sensor Control Unit Module 14B296AA

€28.95

Part no. 03L906018BQ

Skoda Yeti 5L Engine Control Unit ECU 2.0 TDI 110HP CFHF 03L906018BQ Manual

€132.95

Part no. 9297897

BMX X4 F26 X6 F16 Cental Woofer Speaker Audio Unit Left Right N/O/S 9297897

€28.95

Part no. C1BT-14240-ADD

Ford Fiesta Mk7 Door Wiring Loom Harness Rear Right O/S C1BT-14240-ADD

€23.95

Part no. CV6T-14B531-DB

Ford Kuga C520 Front Door Module Control Unit Driver Side CV6T-14B531-DB

€32.95

Part no. 5K0907115K-1

Volkswagen Golf Mk6 Engine Control ECU Kit 2.0 Petrol 235HP 5K0907115K Manual

€569.95

Part no. A1665402709

Mercedes W166 Automatic Gearbox Wiring Loom Harness Cable A1665402709

€23.95

Part no. GR3T-19C107-KK

Ford Mustang Mk6 GT Radio Stereo Multimedia Player Head Unit GR3T-19C107-KK

€465.95

Part no. 6G9N-17D547-AE

Ford Galaxy Mk2 Windscreen Front Window Rain Sensor Bosch 6G9N-17D547-AE

€23.95

Part no. A2205401124

Mercedes CL S Class C215 W220 Fuse Box Unit Front Right O/S ECU A2205401124

€23.95

Part no. A2218706887

Mercedes W221 Head Unit Multimedia TV Player CD Changer Inverter A1679001014

€569.95

Part no. LR034027

Range Rover Sport L494 Engine Starter Motor Unit 3.0 Diesel CPLA-11001-BE

€89.95

Part no. 03G906016FF

Audi A3 8P 1.8 TFSI CDAA 160HP Engine Module ECU Kit 03G906016FF Automatic

€75.95

Part no. AH32-5A482-AD

Range Rover Sport L320 Air Suspension Control Unit ARC ECU AH32-5A482-AD

€23.95

Part no. CK52-14A260-BC

Range Rover L405 Fuse Box Battery Cable Holder Bracket CK52-14A260-BC

€23.95

Part no. A0295452925

Mercedes W205 Air Unit Module Wire Harness Loom Connector A0295452925

€23.95

Part no. 7P6907297

Volkswagen Touareg 7P Control Unit Module ECU Bracket Holder Retainer 7P6907297

€23.95

Part no. 281000R020

Toyota Verso R2 Engine Starter Motor 2.0 Diesel 1ADFTV Valeo 12V 28100-0R020C

€42.95

Part no. 8926152050

Toyota Yaris Mk2 P9 Engine Start Stop Control Module ECU Unit 89261-52050

€23.95

Part no. A4539050200

Smart 453 Fortwo Door Pressure Crash Impact Sensor Front Left N/S A4539050200

€23.95

Part no. 4G8971095AH

Audi A6 C7 A7 4G Front PDC Parking Sensor Wiring Loom Harness 4G8971095H

€118.95

Part no. 059911021K

Audi A5 8T 3.0 TDI CLAB Diesel Engine Starter Motor 059911021K

€37.95

Part no. 8574351-10

BMW X1 E84 18dX Diesel N47N Engine Control Unit ECU Kit Set DDE 8574351 Manual

€113.95

Part no. 896610F150

Toyota Verso Mk2 Engine Control Module Unit ECU 2.0 D 127HP 89661-0F150 Manual

€28.95

Part no. 05E972627B

Volkswagen Golf SV 1.5 TSI DADA Automatic Engine Wiring Harness 05E972627B

€108.95

Part no. DG9T-14631-HHJ

Ford Mondeo Mk5 Door Wire Harness Cable Wiring Front Left N/S DG9T-14631-HHJ

€32.95

Part no. SRO000020

Range Rover L322 YAW Rate Speed ESP Sensor Module Bosh SRO000020

€75.95

Part no. 127073X

Mercedes W176 Electrical Wiring Loom Harness Cable 127073X

€23.95

Part no. CK52-14301-AC

Range Rover L405 Negative Minus Battery Cable Wiring Loom Harness CK52-14301-AC

€23.95

Part no. 8P0907063B

Audi TT 8J Body Comfort Control BCM Module Unit ECU 8P0907063B

€113.95

Part no. A9065451640

Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640

€23.95

Part no. AV6T14A067BC

Ford Transit Connect Mk2 II Fuse Box Battery Terminal Unit Module AV6T14A067BC

€23.95

Part no. A2118201626

Mercedes S211 W211 Rear Door Control Unit Right O/S A2118201626

€23.95

Part no. A1331510745

Mercedes C117 CLA 45 AMG Heat Shield Alternator Plate Petrol M133 A1331510745

€28.95

Part no. 8P0971679L

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

€23.95

Part no. A2035405707

Mercedes-Benz CL203 Front Left Right Door Wiring Loom Harness A2035405707

€23.95

Part no. A2045451047

Control Unit Bracket Mercedes W204 W212 Audio Module Holder Mount A2045451047

€23.95

Part no. 8507360

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

€127.95

Part no. 8046454

BMW E81 E82 E87 E90 PDC Ultrasonic Sensor Front Rear Melbourne Red - A75 8046453

€23.95

Part no. RADIO

Audi A3 A4 TT Android Radio DVD GPS Head Unit

€94.95

Part no. FV61-12A650-BRA

Ford Transit Connect Mk2 1.5 TDCi 75HP Engine Control ECU FV61-12A650-BRA Manual

€142.95

Part no. 226334803R

Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Engine Wiring Loom Cable 226334803R

€23.95

Part no. 5Q0906121K

Volkswagen Golf Mk7 Fuel Pump Control Unit Module ECU 1.6 TDI Diesel 5Q0906121K

€47.95

Part no. A0005410005

Mercedes W211 Battery Box Cover Lit Top Housing A0005410005

€23.95

Part no. 5Q0915181F

Skoda Octavia Mk3 Negative Battery Terminal Wiring Cable 1.6 TDI 5Q0915181F

€23.95

Part no. AA6T-14B321-CA

Ford Fiesta Mk7 Air Module Control Unit Sensor SRS AA6T-14B321-CA

€94.95

Part no. 7795553

BMW E60 530d M57N 218HP ECU Engine Control Unit Automatic Diesel 3.0 7795553

€108.95

Part no. KK72-12C520-FBC-1

Land Rover Discovery L550 2.0 204DT 180HP Engine ECU KK72-12C520-FBC Automatic

€222.95

Part no. 7L5971120A

Porsche Cayenne 9PA Front Door Wiring Loom Harness Left Right N/O/S 7L5971120A

€23.95

Part no. BK3T-9K499-BBB

Ford Transit Mk8 Fuse Relay Box Wiring Harness 2.2 TDCi Diesel BK3T-9K499-BBB

€246.95

Part no. K8D2-10C814-AB

Land Rover Discovery Sport L550 Battery Hold Down Support Bracket K8D2-10C814-AB

€23.95

Part no. 4L0907282B

Audi A7 4G8 Glow Plug Control Unit Controller Module 4L0907282B

€70.95

Part no. 3C8971693CH

VW Volkswagen Passat CC Door Wiring Harness Cable Rear Left N/S 3C8971693CH

€23.95

Part no. AX23-14A005-XB

Jaguar XF X250 Fuse Relay Box Holder Bracket Mount Support 8X2T-14A067-DA

€23.95

Part no. F1CT-14B321-RC

Ford C-Max Mk2 Air Module SRS Control Unit F1CT-14B321-RC

€37.95

Part no. 8W0941824AK

Audi A4 B9 A5 F5 Q5 FY Fuse Box Battery Terminal 8W0941824AK

€23.95

Part no. 5B8E985

BMW F74 Gran Coupé Body Comfort Control Unit Module 5B8E985

€232.95

Part no. 4H0907182G

Audi A8 D4 4H Multicontour Seat Module Control Unit Left Right N/O/S 4H0907182G

€42.95

Part no. 5C6945095H-1

Volkswagen Jetta A6 Rear Left N/S Tail Light Plug Cable 5C6945095H 4D0972704

€23.95

Part no. 7424109-2

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

€23.95

Part no. A6519003701-3

Mercedes W212 OM651.924 204HP Engine Control ECU Kit A6519003701 Automatic

€189.95

Part no. FK72-13193-BK-2

Land Rover Discovery L550 Rear Lamp Socket Plug Cable Left N/S FK72-13193-BK

€23.95

Part no. A2518703390

Mercedes W251 Rear Passengers Entertainment Control Unit A2518703390

€70.95

Part no. A0001501780

Ignition Coil Mercedes W202 W203 M111 Cable Connector A0001501780

€23.95

Part no. 8E0972081

Audi A4 B8 A5 8T 8F Starter Wiring Loom Harness Clip 8E0972081

€23.95

Part no. A2749000800-1

Mercedes W205 C200 274.920 184HP Engine ECU Kit A2749000800 Key Lock Automatic

€222.95

Part no. A2465410100

Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100

€23.95

Part no. N8D2-14N178-AA

Land Rover Discovery Sport L550 Hybrid Cooling Fan Link Lead N8D2-14N178-AA

€66.95

Part no. 5Q0907556C

Volkswagen Tiguan Mk2 Arteon 360° Camera Control Unit Module 5Q0907556C

€294.95

Part no. 2K0971121AK

Volkswagen Caddy Mk2 Front Door Wiring Harness Cable Passenger Side 2K0971121AK

€66.95

Part no. 5QF959351

Seat Ibiza Mk5 Crash Impact Sensor Accelerator Sensor Control Unit 5QF959351

€23.95

...

Showing 8911-9009 of 22739 products