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

Make

Audi A1 8X 1.6 TDI CXMA 115HP Engine ECU Kit 04L907309E Ignition + Key Manual

Product currently unavailable

Part no. 6918782

BMW 7 Series E65 Cable Harness Door Rear Right O/S Wiring Loom 6913164

Product currently unavailable

Part no. 8603352-2

BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8603352 Automatic

Product currently unavailable

Part no. 3451925

Mini Cooper One R56 High SPEG DC/DC M3 Fuse Distribution Box 3451925

Product currently unavailable

Part no. 9248179

BMW E81 E87 E90 E91 LCI Combox Telematics Module 9248179

Product currently unavailable

Part no. A2115405535

Mercedes W211 W219 Earth Ground Cable Battery Wiring Loom Engine A2115405535

Product currently unavailable

Part no. 8J0035223A

Audi TT 8J Audio Amplifier Premium Sound Booster Control Unit Bose 8J0035223A

Product currently unavailable

Part no. R8E2-14D618-AA

Range Rover Evoque L551 Front Door Control Unit ECU Driver's Side R8E2-14D618-AA

Product currently unavailable

Part no. A1668600602

Mercedes W166 Head Roof Curtain Right O/S Side Air Module A1668600602

Product currently unavailable

Part no. 8519663-5

Mini Cooper D ALL4 R60 N47N 112HP 1.6 Engine ECU Kit DDE 8519663 Manual

Product currently unavailable

Part no. 8377049

BMW 3 5 7 X5 E38 E39 E46 E53 6-disc CD Changer Without Magazine 8377049

Product currently unavailable

Part no. A6519007103-2

Mercedes Sprinter W907 311 CDI 651.958 114HP Engine Control Unit ECU A6519007103

Product currently unavailable

Part no. 99661826006

Porsche Boxster 986 Comfort Module Control Unit ECU 99661826006

Product currently unavailable

Part no. A2198202026

Door Module Mercedes C219 Front Door Right O/S Control Unit A2198202026

Product currently unavailable

Part no. 8578609-1

BMW F20 F21 F30 F31 Diesel Alternator Generator 180A 8578608

Product currently unavailable

Part no. 7PP907064HQ

Porsche Cayenne 92A Body Comfort Module Control Unit 7PP907064HQ

Product currently unavailable

Part no. 7599881-15

BMW E87 LCI E90 E91 N43 120i 320i 170HP Engine Unit ECU DME 7599881 Manual

Product currently unavailable

Part no. A1679001014

Mercedes V177 Head Unit Media Player Audio Radio Controller A1679001014

Product currently unavailable

Part no. A1779007316

Mercedes W177 Front Door Control Module Left N/S Unit ECU A1779007316

Product currently unavailable

Part no. 6917541

BMW 7 Series E65 E66 E67 Diagnosis Interface Media System MOST Jumper 6917541

Product currently unavailable

Part no. 03L907309N-1

VW Golf Mk6 5K 2.0 TDi 140 HP CFFB Engine Control Unit ECU 03L907309N Manual

Product currently unavailable

Part no. 6942677

BMW E60 E61 E63 E65 PDC Parking Control Module Unit ECU 6942677

Product currently unavailable

Part no. 8803370

Display Screen Mini F55 F56 F60 Multimedia Navigation Sat Nav Unit 6,5" 8803370

Product currently unavailable

Part no. 6983009

BMW X5 E61 E65 E70 E90 Telematics ECU Control Unit GSM 6983009

Product currently unavailable

Part no. A6079002200-2

Mercedes W176 A180 CDI OM607 109HP BlueEFFICIENCY Engine Unit ECU A6079002200

Product currently unavailable

Part no. 7809999-3

BMW X3 E83 LCI 1.8sd 2.0sd N47 177HP Engine Control Unit ECU DDE 7809999 Manual

Product currently unavailable

Part no. A6421509478

Mercedes ML W164 OM642 Diesel Engine Control Unit Module ECU A6421509478

Product currently unavailable

Part no. A2139062607

Mercedes W213 SD Card Garmin Map Pilot Navi Europe 2019 A2139062607

Product currently unavailable

Part no. 5K0959793C

Skoda Octavia RS 1Z Door Module Control Unit ECU 5K0959793C

Product currently unavailable

Part no. A1644460710

Mercedes W221 DSM ISM Automatic Gearbox Control Unit Module ECU A1644460710

Product currently unavailable

Part no. 7599881-9

BMW E87 LCI E90 118i 318i Petrol N43 143HP ECU Control Unit DME 7599881

Product currently unavailable

Part no. A1669007616

Amplifier DAB Mercedes W176 W204 W212 Control Unit Module ECU A1669007616

Product currently unavailable

Part no. 5Q4959393P

Volkswagen Crafter SY Mk2 Door Module Control Unit Driver's Side 5Q4959393P

Product currently unavailable

Part no. AH42-13N490-AC

Range Rover L322 Tow Bar Electrics Towing Wire Wiring Harness AH42-13N490-AC

Product currently unavailable

Part no. 7798034

BMW E60 E65 E87 E90 Starter Motor Engine 7798034

Product currently unavailable

Part no. 6798937

BMW F11 Touring Air Suspension Control Unit ECU Rear Axle Module 6798937

Product currently unavailable

Part no. 4G9971085A

Audi A6 C7 Allroad Rear Bumper PDC Parking Sensor Wiring Harness Loom 4G9971085A

Product currently unavailable

Part no. 9436154

BMW G20 G21 Front Bumper PDC Parking Wire Harness Loom Electric Line 9436154

Product currently unavailable

Part no. 0AM911023N

Audi A3 8V 1.4 TFSI Petrol Starter Motor Engine Actuator Unit 0AM911023N

Product currently unavailable

Part no. A6089001500

Mercedes W177 A180d 608.915 116HP Engine Control Unit A6089001500 Automatic

Product currently unavailable

Part no. RQT500160

Range Rover L320 Air Suspension Control Module Unit ECU RQT500160

Product currently unavailable

Part no. A0009059300

Mercedes W205 W212 W246 Parking Distance Sensor Parktronic White A0009059300

Product currently unavailable

Part no. F40HQ012GKB

BMW E90 E91 E92 Radio Fan Adapter Cooling Control Unit Module F40HQ012GKB

Product currently unavailable

Part no. 4F7910401L-1

Audi A6 C6 2.7 TDI CANC Quattro 190HP Engine Control Unit ECU Kit 4F7910401L

Product currently unavailable

Part no. 8512498-1

BMW X1 E84 20dX N47 177HP Engine Control ECU Kit DDE 8512498 Automatic

Product currently unavailable

Part no. 9330542

BMW G30 G31 Fuse Distribution Box Holder Control Unit Bracket Carrier 9330542

Product currently unavailable

Part no. 8657232

Engine Wiring BMW F87 M2 N55 Petrol Loom Module Harness Cable 8657232

Product currently unavailable

Part no. A2129008825

Mercedes C204 Fuse Box Control Unit SAM Module Relay A2129008825

Product currently unavailable

Part no. 8574093

BMW F10 F30 320d 520d ed 163HP Engine Control Unit N47N ECU DDE 8574093 Manual

Product currently unavailable

Part no. 1C0971235A

Volkswagen New Beetle Earth Ground Cable Negative Battery Lead Wiring 1C0971235A

Product currently unavailable

Part no. 8E0910115N

Audi A4 B7 2.0 TFSI BUL Quattro 220HP Engine Control ECU Kit 8E0910115H Manual

Product currently unavailable

Part no. 9149080-3

Roof Antenna Mini Cooper R57 Convertible Cabrio Aerial Base 9149080

Product currently unavailable

Part no. 8507136

BMW E90 LCI 330d N57 245HP ECU Engine Control Unit DME Automatic Gearbox

Product currently unavailable

Part no. 8K0907561

Audi A4 B8 A5 8T PDC Parking Parktronic Sensor Module Assist Unit ECU 8K0907561

Product currently unavailable

Part no. 02T911023M

Audi A3 8P 1.6 MPI Petrol Starter Motor Engine 02T911023M

Product currently unavailable

Part no. 8K2907401-1

Audi A5 8T 3.0 TDI CCWA 240HP Engine ECU Kit 8K0907401 Ignition + Key Automatic

Product currently unavailable

Part no. 3C8907801A

Volkswagen Passat CC Parking Brake Module Control Unit ECU 3C8907801A

Product currently unavailable

Part no. 6938264

BMW Z4 E85 Roadster Cabrio Safety Information Module Airbag 6938264

Product currently unavailable

Part no. 9142398

Mini Cooper R55 R56 Cable Wiring Set HiFi Driver's Side 9142398

Product currently unavailable

Part no. A2129003814

Fuse Box Mercedes W204 W212 Front Relay Control Unit Module SAM A2129003814

Product currently unavailable

Part no. 5B5C755

BMW X5 G05 G26 G70 Telematic Ecall Control Module Communication Box ECU 5B5C755

Product currently unavailable

Part no. 8510832-1

BMW E90 E91 LCI 318d Engine N47N 143HP ECU Kit DDE 8510832 CAS3 Key Automatic

Product currently unavailable

Part no. A4475401755

Earth Ground Cable Mercedes Vito W447 Positive Battery Lead Wiring A4475401755

Product currently unavailable

Part no. A6421506434-1

Mercedes W251 R 320 CDI 642.950 224HP Engine ECU Kit A6421506434 Keys Lock

Product currently unavailable

Part no. 9123038

BMW 1 3 Series E81 E87 E91 Switch Cluster Cruise Control Stalk Unit 9123038

Product currently unavailable

Part no. A1715451301-1

Mercedes SLK R171 Roadster Fuse Box Control Unit SAM Module Relay A1715451301

Product currently unavailable

Part no. A2129006905-1

Mercedes W212 Comand Radio Head Unit CD DVD Player A2129006905

Product currently unavailable

Part no. 9264577

BMW 3 E91 ECU Body Control Module Junction Box M PL2RR JBBFE IIIR 9264577

Product currently unavailable

Part no. A2045420523

PDC Display Mercedes W204 W207 W212 Parking Sensor Control Screen A2045420523

Product currently unavailable

Part no. H1BT-14D068-BG

Ford Fiesta Mk8 Fuse Relay Box Under Bonnet 1.0 1.5 Petrol H1BT-14D068-BG

Product currently unavailable

Part no. 8680374

BMW F45 Alternator Generator 8680374

Product currently unavailable

Part no. 7811999-2

BMW X3 E83 LCI 2.0d N47 177HP Diesel ECU Kit DDE 7811999 + EWS4 + Key Manual

Product currently unavailable

Part no. 09G927750FD

VW Volkswagen Tiguan 5N Automatic Gearbox Module Control Unit ECU 09G927750FD

Product currently unavailable

Part no. 4H0907063DA

VW Touareg 7P Body Control Comfort Unit Convenience Module BCM1 ECU 4H0907063DA

Product currently unavailable

Part no. 7E0919506

VW Volkswagen Transporter T5 Magnetic Clutch Relay Unit Black 454 7E0919506

Product currently unavailable

Part no. 7557395-15

MINI S R52 R53 W11 170HP Engine Control Unit ECU DME 7557395 Manual Gearbox

Product currently unavailable

Part no. 1C0909605P

Volkswagen Fox 5Z Air Module Control Unit ECU Module 1C0909605K

Product currently unavailable

Part no. 8470176-6

BMW F30 F31 LCI 320dX B47 190HP Diesel Engine Control ECU DDE 8470176 Automatic

Product currently unavailable

Part no. 5B5A0F1

BMW F70 F74 X2 U10 X1 U11 Air Control Module Unit 5B5A0F1

Product currently unavailable

Part no. A1635401230

Mercedes W163 Negative Battery Minus Terminal Lead Cable A1635401230

Product currently unavailable

Part no. BK3D18D815BE

Ford Transit MK8 Radio Stereo Audio USB Head Unit Panel BK3D-18D815-BE

Product currently unavailable

Part no. 7574544-3

BMW E90 E91 E92 N52N 325i 218HP ECU Kit DME CAS3 Key 7574544 Automatic

Product currently unavailable

Part no. 5B4E028

Remote Control Receiver BMW F70 X5 G05 G60 U06 Mini F65 Radio Module 5B4E028

Product currently unavailable

Part no. 6H52-18C808-BD

Land Rover Freelander II Audio Amplifier Control Module 6H52-18C808-BD

Product currently unavailable

Part no. 9227470

BMW 1 Series F20 F21 LCI Antenna Aerial Noise Suppression Filter 9227470

Product currently unavailable

Part no. 5B31359

BMW i4 G26 Fuse Box Front Body Control Module ECU BCM Unit 5B31359

Product currently unavailable

Part no. A2139007839

Mercedes W167 W177 W247 Headlight Ballast Control Module Left N/S A2139007839

Product currently unavailable

Part no. 8482313

BMW G30 Engine Wiring Loom Harness Ignition Module 8482313

Product currently unavailable

Part no. A6429000401-1

Mercedes W166 ML350 Bluetec 4-Matic OM642.826 Engine ECU Kit Module A6429000401

Product currently unavailable

Part no. 04E907309BJ

Audi A3 8V 1.4 TFSI CZEA Engine Control Module Unit ECU 04E907309A Manual

Product currently unavailable

Part no. 7558220-1

BMW E82 E90 E91 E92 N54 135i 335i Alternator Generator 180A 7558220

Product currently unavailable

Part no. A6511501879-6

Mercedes W639 OM651.940 136HP 113 CDI Engine Unit ECU Kit A6511501879 Key Lock

Product currently unavailable

Part no. 7L5035884E

Porsche Cayenne 9PA MMI Multimedia Navigation Control Head Unit 7L5035884E

Product currently unavailable

Part no. 8625068-2

Mini One R56 LCI R58 N16 1.6 98HP Engine ECU Kit DME 8625068 CAS 3 + Key Manual

Product currently unavailable

Part no. AH22-14D202-BB

Land Rover Discovery 4 L319 Centre Console iPod Connection Wiring AH22-14D202-BB

Product currently unavailable

Part no. 5Q0906121F

Audi Q3 8U 2.0 TDI Fuel Pump Sender Control Relay Module Unit ECU 5Q0906121F

Product currently unavailable

Part no. 5F0971095E

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

Product currently unavailable

Part no. 06K907425B

Audi S1 8X 2.0 TFSI CWZA 231HP Quattro Engine Control Unit ECU 06K907425C

Product currently unavailable

Part no. 6948059

BMW Z4 Series E85 Roadster Wiring Passenger Side Door Cable Harness 6941884

Product currently unavailable

...

Showing 15742-15840 of 17871 products