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

Audi A6 C7 Avant Antenna Amplifier Upper Left N/S 4G9035225C

Product currently unavailable

Part no. 504092575

Iveco Daily 3 Electrical Wire Earth Cable Battery Power Wiring 504092575

Product currently unavailable

Part no. A6461502720

Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6461501388

Product currently unavailable

Part no. 6992221

BMW F82 M4 LCI Boot Trunk Tail Wiring Harness Cable Loom 6992221 6992223

Product currently unavailable

Part no. A0009068302

Mercedes Sprinter W907 Alternator Generator Engine Diesel 250A 14V A0009068302

Product currently unavailable

Part no. 6943078

Mini Cooper R52 Cabrio Loudspeaker Seal Right O/S 6943078

Product currently unavailable

Part no. 7605478-1

BMW Z4 F20 F30 E89 Petrol Alternator Generator 170A 7605478

Product currently unavailable

Part no. 9M2J-19H405-AD

Ford Mondeo Mk4 S-Max Galaxy Mk3 Rear View Camera Control Module 9M2J-19H405-AD

Product currently unavailable

Part no. 8573257-9

BMW F20 F30 F32 120d 320d 420d Diesel N47N 163HP Engine ECU DDE 8573257 Manual

Product currently unavailable

Part no. 6M21-14B684-BA

Ford Mondeo Mk4 Galaxy Mk2 Front Seat Wiring Loom Cable 6M21-14B684-BA

Product currently unavailable

Part no. CC1T-11000-DC

Ford Transit Custom Starter Motor Engine Actuator Diesel 2.2 TDCi CC1T-11000-DC

Product currently unavailable

Part no. ET76-13404-AB-2

Ford Transit Courier Rear Tail Light Wiring Cable Right O/S ET76-13404-AB

Product currently unavailable

Part no. 4H0971192B

Audi A8 D4 Reversing Camera Wiring Harness Cable Adapter Connector 4H0971192B

Product currently unavailable

Part no. RHD-A2215400232

Mercedes W221 Battery Starter Alternator Cable Wiring Harness OM642 A2215400232

Product currently unavailable

Part no. A2205404508

Mercedes W220 Door Wiring Harness Rear Left N/S Cable A2205404508

Product currently unavailable

Part no. 9666527580

Citroën C4 Grand Picasso Battery Fusebox 1.6 HDi Diesel 9HR 9666527580

Product currently unavailable

Part no. 8F0971029BF

Audi A5 8F Cabriolet Front Door Wiring Loom Harness Driver's Side 8F0971029BF

Product currently unavailable

Part no. F1ET-14240-LBG

Ford Focus Mk3 Rear Door Cable Wiring Harness Loom Left N/S F1ET-14240-LBG

Product currently unavailable

Part no. 8513249-2

BMW X3 F25 Engine Control Unit N47N 2.0 Diesel 184HP ECU DDE Manual 8513249 Kit

Product currently unavailable

Part no. LION 60Ah Accumulator

LION Calcium Accumulator Battery 60Ah 480A 12V

Product currently unavailable

Part no. 6941427

BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6941427

Product currently unavailable

Part no. A0101540802

Mercedes W903 Diesel Engine Alternator Generator 45-90A 14V A0101540802

Product currently unavailable

Part no. 9353270

BMW G11 G12 Trunk Bracket Holder Audio Boot Amplifier Mounting Mount 9353270

Product currently unavailable

Part no. 022906032GF-1

Porsche Cayenne 9PA 3.2 022Y 250HP Engine Control ECU Kit 022906032GF Automatic

Product currently unavailable

Part no. 6938049

BMW 3 5 Series E39 E46 Touring Ultrasonic Roof Alarm Sensor Module ECU 6938049

Product currently unavailable

Part no. A6461508391-1

Mercedes W639 111CDI OM646 109HP Engine Control ECU Kit A6461508391 Automatic

Product currently unavailable

Part no. KK3T-14D068-JE-1

Ford Transit Mk8 Fuse Box Power Distribution Relay 2.0 Diesel KK3T-14D068-JE

Product currently unavailable

Part no. 1423079

BMW 3 E36 316i M43 Engine Automatic Gearbox Control Unit EGS 1423079 1423000

Product currently unavailable

Part no. 8P4971693S

Audi A3 8P Rear Door Wiring Loom Harness Left Right N/O/S 8P4971693S

Product currently unavailable

Part no. 5C0951171

Volkswagen Scirocco Mk3 Amarok Alarm Motion Sensor Control Module 5C0951171

Product currently unavailable

Part no. 5F0971095E

Seat Leon Cupra 5F Front Bumper PDC Wiring Harness Cable 5F0971095E

Product currently unavailable

Part no. HPLA-14A076-CB

Range Rover Sport L494 Engine Compartment Fuse Panel Cover Lid HPLA-14A076-CB

Product currently unavailable

Part no. 7843526

BMW E90 E92 E93 M3 S65 Engine Starter Motor 7843526

Product currently unavailable

Part no. 8K0963271

Porsche Cayenne 92A Audi A4 B8 A5 8T Auxiliary Heating Control Module 8K0963271

Product currently unavailable

Part no. 9459673

Seat Module BMW X4 F26 F20 F30 Front Driver Side Control Unit ECU 7943747

Product currently unavailable

Part no. A2129005010

Mercedes W212 Audio 20 CD Player Audio Stereo Radio Head Unit A2129005010

Product currently unavailable

Part no. 5H0959542K-1

Volkswagen Golf Mk8 Multifunction Steering Wheel Control Module 5H0959542K

Product currently unavailable

Part no. BS71-13A602-BD-1

Ford Mondeo Mk4 Rear Tail Light Inner Wiring Harness Right O/S BS71-13A602-BD

Product currently unavailable

Part no. 6G9T-14297-BG

Ford Mondeo Mk4 Galaxy S-Max Windscreen Washer Nozzle Wiring 6G9T-14297-BG

Product currently unavailable

Part no. 5A5D0D7

BMW X1 U11 Ground Minus Negative Cable Wiring Harness 5A5D0D7

Product currently unavailable

Part no. K8D2-14632-AAD

Land Range Rover Evoque L551 Door Wiring Harness Rear Right O/S K8D2-14632-AAD

Product currently unavailable

Part no. 4L0941004E-2

Audi Q7 4L Front Headlight Xenon Wiring Cable Harness Right O/S 4L0941004E

Product currently unavailable

Part no. 8E0941004AK-2

Audi A4 B7 Headlight Wiring Harness Cable Plug Right O/S 8E0941004AK

Product currently unavailable

Part no. 1306522070

Air Intake Duct Citroen Relay Peugeot Boxer Fiat Ducato Air Intake 1306522070

Product currently unavailable

Part no. 8639595-13

BMW F10 LCI F20 F22 F30 F31 N20 Engine Control Unit ECU DME 8639595 Automatic

Product currently unavailable

Part no. 5K0962132A-1

Audi Q3 F3 Keyless Entry Amplifier Control Module Aerial Antenna 5K0962132A

Product currently unavailable

Part no. 8V5115K600EG

Ford Fiesta MK7 Body Control Module BCM Control Unit ECU 8V5115K600EG

Product currently unavailable

Part no. 5Q0971068K

Volkswagen Tiguan Mk2 Skoda Octavia Mk3 Exhaust Flap Wiring Loom 5Q0971068K

Product currently unavailable

Part no. 8631634

BMW X5 F15 Earth Ground Cable Negative Battery Lead Wiring 8631634

Product currently unavailable

Part no. F1ET14B532BF

Ford Focus Mk3 Rear Door Control Module Unit ECU Left N/S F1ET-14B532-BF

Product currently unavailable

Part no. 4E0907383H-1

Audi Q7 4L Towbar Trailer Hitch Control Module Unit ECU HELLA 5DS010154-11

Product currently unavailable

Part no. A6394408637

Mercedes W639 Rear Bumper PDC Wiring Parking Sensor Loom Harness A6394408637

Product currently unavailable

Part no. 8E0057186DX

Audi A4 B7 Radio Player Head Unit CD Stereo Concert 8E0057186DX

Product currently unavailable

Part no. 028903028C

Volkswagen Golf Mk4 Alternator Generator BOSCH 14V 70A 028903028C

Product currently unavailable

Part no. A1645403572-2

Mercedes W164 W251 Fuse Box Relay Module Control Unit A1645403572

Product currently unavailable

Part no. FK72-19H440-BH

Land Rover Discovery Sport L550 Keyless Module Control Unit FK72-19H440-BH

Product currently unavailable

Part no. A6421500856

Mercedes W164 Diesel OM642 Engine Wiring Loom Harness Cable A6421500856

Product currently unavailable

Part no. BK2T-14303-AG

Ford Transit Custom Negative Battery Terminal Cable Wiring BK2T-14303-AG

Product currently unavailable

Part no. 03F971612

VW Volkswagen Polo 1.2 TSI CBZB Engine Wiring Harness Cable Loom 03F971612

Product currently unavailable

Part no. 8366381

BMW 3 5 E34 E36 Windscreen Wiper Wash Wi-Wa Control Unit Module ECU 8366381

Product currently unavailable

Part no. 7E0945096T-2

VW Volkswagen Transporter T6 Rear Tail Light Wiring Harness Right O/S 7E0945096T

Product currently unavailable

Part no. 0AH911023A

VW Volkswagen Touran 1T 1.2 TFSI CBZB Starter Motor 0AH911023A

Product currently unavailable

Part no. 8W5035035C

Audi A5 F5 Sat Navi MMI Multimedia Radio SD Reader Head Unit Harman 8W5035035C

Product currently unavailable

Part no. 8586141

BMW F20 F21 F30 116d 120d 316d 320d N47N Wiring Harness Engine Module 8586141

Product currently unavailable

Part no. 8587952-5

Mini Cooper D F55 F56 B37 115HP Engine ECU Kit DDE 8587952 Key BDC Lock Manual

Product currently unavailable

Part no. BJ32-3C097-AA

Range Rover Evoque L538 Front Height Level Sensor Right O/S BJ32-3C097-AA

Product currently unavailable

Part no. 8610680-1

BMW F10 F11 550i F12 F13 650i N63 408HP ECU Kit DDE 8610680 Key CAS4 Automatic

Product currently unavailable

Part no. FG9T-14A067-EB

Ford Mondeo Mk5 Engine Bay Fuse Box 2.0 Diesel FG9T-14A067-EB

Product currently unavailable

Part no. KK62-14N274-AD

Range Rover Sport L494 Hybrid Wiring Loom Harness Cables KK62-14N274-AD

Product currently unavailable

Part no. A2139005023

Ignition Switch Mercedes C238 Electronic Anti Theft Control Module A2139005023

Product currently unavailable

Part no. A0028206289

Mercedes-Benz C ML W203 C209 W163 6 CD Changer Magazine Cartridge A0028206289

Product currently unavailable

Part no. 7849446

BMW F15 F85 F16 F86 Steering Wheel Lane Change Control ECU Module Unit 7849446

Product currently unavailable

Part no. 8585269

Mini R55 R56 R57 R60 R61 Engine Wiring Harness Loom Cable 8585269

Product currently unavailable

Part no. 7233914

BMW E90 E91 Central Locking Lock Immobilizer Control Unit Module ECU 7233914

Product currently unavailable

Part no. 3G0919605D-1

Volkswagen Golf Mk7 Multimedia Radio Sat Nav Radio Display Screen 3G0919605D

Product currently unavailable

Part no. LR016237

Range Rover Sport L320 Rear Bumper PDC Wiring Loom Harness AH32-15B484-AB

Product currently unavailable

Part no. 0445684

BMW 1 3 Series E87 E90 HiFi Audio Speaker Amplifier Retrofit Kit Set 0445684

Product currently unavailable

Part no. CHIP POWER

Chip Power Box Remap Module Control Unit Wiring Cable Harness Plug OBD2

Product currently unavailable

Part no. A4144460116

Mercedes W414 Central Locking Lock Alarm Control Module ECU A4144460116

Product currently unavailable

Part no. 4868429AD

Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD

Product currently unavailable

Part no. 5B76CB0

BMW G20 G21 G28 LCI Front Indicator Daytime Light Module Unit Right O/S 5B76CB0

Product currently unavailable

Part no. EH22-01445-AB

Land Rover Discovery 4 L319 Battery Pad Cover Panel EH22-01445-AB

Product currently unavailable

Part no. 8P0035186P-1

Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186P

Product currently unavailable

Part no. 6R0915181E

Audi A1 8X Battery Cable Loom Harness Wiring Negative Terminal 6R0915181E

Product currently unavailable

Part no. 6933557

BMW E60 E60 LCI E61 E61 LCI Driver's Seat Wire Harness Cable Loom 6933557

Product currently unavailable

Part no. 4H0971727B

Audi A8 4H D4 Quattro Fuel Tank Pump Wiring Loom Harness 4H0971727B

Product currently unavailable

Part no. 7555176

BMW F10 Control Unit Box F07 F11 Engine Ventilation Housing Box 7555176

Product currently unavailable

Part no. A6461505091-1

Mercedes C209 CLK220 CDI 646.966 Engine ECU Kit A6461505091 Keys Lock Automatic

Product currently unavailable

Part no. ET76-14A584-BAC

Ford Transit Courier Front Door Wiring Loom Harness Right O/S ET76-14A584-BAC

Product currently unavailable

Part no. 7H0971692AH

VW Transporter T5 Rear Sliding Side Door Wiring Loom Harness Cable 7H0971692AH

Product currently unavailable

Part no. 8E0959501AA

Audi RS4 B7 Radiator Cooling Fan Control Module Unit ECU 4.2 FSI BNS 8E0959501AA

Product currently unavailable

Part no. 3AA906507A

VW Volkswagen Passat CC Engine Control Unit ECU Bracket Holder Tray 3AA906507A

Product currently unavailable

Part no. 9160101-1

BMW E93 Convertible Cabrio Battery Cable Plus Positive Pole Wiring 9160101

Product currently unavailable

Part no. 4H0907063CE

Audi A6 C7 Body Control Module BCM ECU 3.0 TDI Quattro CDUD 4H0907063CE

Product currently unavailable

Part no. 06D903016

Audi A4 S4 8H A6 S6 4B Alternator Generator 14V 150A 2.0 Petrol BWE 06D903016

Product currently unavailable

Part no. 06J903023A-1

Audi Volkswagen Seat Skoda Petrol Alternator Generator 14V 140A 06J903023A

Product currently unavailable

Part no. 8645329

BMW F20 F21 F30 F31 LCI Alternator Generator 14V 180A 8645329

Product currently unavailable

Part no. AH22-14A699-GB

Land Rover Discovery 4 Passenger Seat Wire Wiring Cable L319 AH22-14A699-GB

Product currently unavailable

Part no. 8625241-4

BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8625241 + FEM + Key Automatic

Product currently unavailable

...

Showing 25048-25146 of 28611 products