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

Range Rover Evoque L538 2.0 204DTD Engine Control ECU GX73-12C520-FAG Manual

Product currently unavailable

Part no. A2115406606

Mercedes W211 Cable Loom Wiring Parking Sensors Rear A2115406606

Product currently unavailable

Part no. 9197317

BMW E61 LCI Body Gateway Module KGM HIGH 27 D-Can LEAR 9197317

Product currently unavailable

Part no. L8B2-70718-AAA

Range Rover Evoque L551 Telematics Bluetooth Control Unit L8B2-70718-AAA

Product currently unavailable

Part no. 9274428-1

Parking Sensor Mini Cooper F54 F55 F56 F57 F60 PDC Ultrasonic Black 9274428 SET

Product currently unavailable

Part no. 6907435

BMW E46 Touring Positive Battery Cable Plus Pole Lead Loom 6907435

Product currently unavailable

Part no. 6C1T-9K499-AHC

Ford Transit Mk7 2.2 TDCi Engine Wiring Harness Cable Loom 6C1T-9K499-AHC

Product currently unavailable

Part no. 5J0035161A

Skoda Fabia 5J Dance CD Player Audio Stereo Radio Head Unit 5J0035161A

Product currently unavailable

Part no. 1C0971235A

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

Product currently unavailable

Part no. 3453890

BMW Mini Cooper Cabrio R57 Aerial Roof Antenna Base Unit 3453890

Product currently unavailable

Part no. A2701504400

Mercedes W176 M270 Petrol Engine Wiring Harness Loom Cable A2701504400

Product currently unavailable

Part no. A1718207126

Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718207126

Product currently unavailable

Part no. 6917541

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

Product currently unavailable

Part no. 7N0959795

Skoda Yeti 5L Door Control Unit Module ECU Rear Left N/S 7N0959795

Product currently unavailable

Part no. 5K0035156A

VW Volkswagen Caddy Golf MK6 Stereo Radio CD Changer Player Head Unit 5K0035156A

Product currently unavailable

Part no. 8W5035035B

Radio CD Player Audi A4 B9 A5 F5 Q5 FY Stereo Sat Nav Head Unit 8W5035035B

Product currently unavailable

Part no. A2829062400

Starter Mercedes W177 M282 Petrol Engine Starter Motor A2829062400

Product currently unavailable

Part no. A0015409981

Mercedes W163 W212 W639 W906 Automatic Gearbox Connector Plug A0015409981

Product currently unavailable

Part no. 4F9910402A-1

Audi A6 C6 3.0 TDI 240HP CDYA Quattro Engine ECU Kit 4F9910402A Ignition + Keys

Product currently unavailable

Part no. 1K0915181E

Audi A3 8P Negative Battery Cable Terminal Lead Wiring 1K0915181E

Product currently unavailable

Part no. 8K0907566B

Audi A4 B8 Lane Change Assist Control Unit Module Rear Right O/S 8K0907566B

Product currently unavailable

Part no. 059903018TX

Audi A7 4G 3.0 TDI Alternator Generator 059903018TX

Product currently unavailable

Part no. 4461712-1

Ford Transit MK6 2.4 Diesel Engine Alternator Generator 4461712

Product currently unavailable

Part no. 9302356

Battery Cable BMW F10 F11 X3 F25 Lead Negative IBS Wiring 9302356

Product currently unavailable

Part no. A2125407050-1

Mercedes W212 Fuse Box Control Unit Power Distribution Electrical A2125407050

Product currently unavailable

Part no. 6965263

BMW 1 3 Series E82 E90 E92 Switch Cluster Cruise Control Stalk Unit 6965263

Product currently unavailable

Part no. FK72-19C164-ZF

Land Rover Discovery Sport L550 Radio Audio Sound Amplifier FK72-19C164-ZF

Product currently unavailable

Part no. 7809002

BMW E81 E82 E87 LCI E88 Engine N47S 123d ECU Kit DDE 7809002 CAS3 + Key Manual

Product currently unavailable

Part no. A2139005223

SAM Module Mercedes W213 C238 Control Unit Front ECU A2139005223

Product currently unavailable

Part no. 8XA035192F

Audi A1 8X Multimedia Stereo Sat Navi Navigation Radio Head Unit 8XA035192F

Product currently unavailable

Part no. 8367253

BMW E38 Fuse Box Battery Power Junction Control Unit Module 8367252 8367253

Product currently unavailable

Part no. 06E971627Q

Fuel Injector Wiring Audi S4 B8 A6 A7 C7 4G 3.0 V6 TFSI Wiring Cable 06E971627Q

Product currently unavailable

Part no. 6819838

BMW F30 LCI G11 G30 High Voltage Battery Charging Unit Module 6819838

Product currently unavailable

Part no. 9223733

BMW F01 F02 F07 F10 F11 CAS4 Control Unit Key Reading Module 9223733

Product currently unavailable

Part no. A2129003708

Mercedes W212 COMAND Radio Head Unit Navi CD DVD Player Navigation A2129003708

Product currently unavailable

Part no. 5B31359

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

Product currently unavailable

Part no. 9387265

Control Unit BMW F20 F21 F22 F30 F31 F32 F36 Module FEM ECU LR01 9387265

Product currently unavailable

Mercedes W203 W211 Diesel Engine Starter Motor A0051511301

-15%

Part no. A0051511301

Mercedes W203 W211 Diesel Engine Starter Motor A0051511301

Product currently unavailable

Mercedes Sprinter W906 ECU Control Unit Sensor Module A9064461442

-5%

Part no. A9064461442

Mercedes Sprinter W906 ECU Control Unit Sensor Module A9064461442

Product currently unavailable

BMW F01 F07 F10 F11 F12 F25 CAS4 Module Control Unit Key Reading 6809374

-40%

Part no. 6809374

BMW F01 F07 F10 F11 F12 F25 CAS4 Module Control Unit Key Reading 6809374

Product currently unavailable

Part no. 6G92-15K866-BJ

Land Rover Freelander 2 L359 Parking Assist PDC Control Unit 6G92-15K866-BJ

Product currently unavailable

Part no. 3C0959433AR-1

Volkswagen Passat CC B6 Comfort Convenience Control Module Unit ECU 3C0959433AR

Product currently unavailable

Part no. A1718200386

Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386

Product currently unavailable

Part no. 1904993

Ford Galaxy S-Max Mondeo IV Starter Motor 2.2 TDCi 1904993

Product currently unavailable

Part no. 1K0953549CF

VW Volkswagen Golf MK6 Steering Wheel Column Control Module 1K0953549CF

Product currently unavailable

Part no. GK2T-18C815-HG

Ford Transit Custom Stereo Radio Media Head Unit CD Player GK2T-18C815-HG

Product currently unavailable

Part no. 3450588

Mini Cooper R55 R56 Harman Becker Hi-Fi Audio System Amplifier 3450588

Product currently unavailable

Part no. 58053R

Vespa Piaggio 125 GTS CDI Ignition Module Control Unit 58053R

Product currently unavailable

Part no. A0035420019

Mercedes W204 Battery Relay Fuse Control Unit Module A0035420019

Product currently unavailable

Part no. A1718203126

Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204126

Product currently unavailable

Part no. 9177981

BMW E90 ECU Body Control Module H1 PL2 JBBFE2 9177981

Product currently unavailable

Part no. 9138448

BMW E87 E90 E91 E92 CCC CD Professional Navigation System 9138448

Product currently unavailable

Part no. 7558220

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

Product currently unavailable

Part no. 6966615

BMW 3 X3 X5 Z4 Series E46 E53 E83 E85 E86 Video Module High 6966615

Product currently unavailable

Mini Cooper R50 R53 R56 R57 R60 Relay No Contact Taubenblau Blue Set 2X 6977982

-5%

Part no. 6977982-2

Mini Cooper R50 R53 R56 R57 R60 Relay No Contact Taubenblau Blue Set 2X 6977982

Product currently unavailable

Part no. 9270385

BMW E88 ECU Body Control Module H4 Junction Box PL2RR JBBFE IIIR 9270385

Product currently unavailable

Part no. 3457402-3

Mini Cooper R57 Footwell Light Module High EKS PL3 FRM3R Lear Unit 3457402

Product currently unavailable

Part no. 8512499-3

BMW E87 E90 LCI N47 118d 318d Diesel ECU Kit DDE 8512499 CAS3 + Key Manual

Product currently unavailable

Part no. 2GA035284A

Seat Ibiza KJ1 VW Polo MK6 Online Services Control Module ECU Unit 2GA035284A

Product currently unavailable

Part no. 8D0907539

Audi A3 8L A4 B5 Windscreen Sunlight Sun Light Solar Sensor Unit 8D0907539

Product currently unavailable

Part no. 8K0907064HE

Audi A4 B8 Body Control Module BCM Comfort Control Unit 8K0907064DP

Product currently unavailable

Part no. BT4A-7H417-CB

Ford Kuga Mk2 Transfer Case Control Module Unit 2.0 TDCi AWD BT4A-7H417-CB

Product currently unavailable

Part no. 7N0959794

Skoda Yeti 5L Door ECU Module Control Unit Rear Right O/S 7N0959794

Product currently unavailable

Part no. 0141339

Mini R50 R53 Basic Body Control Module Unit ECU Controller 0141339

Product currently unavailable

Part no. 03L906018CN

Audi Q3 8U 2.0 TDI 140HP CFFB Quattro Engine Control Unit ECU 03L906018CN Manual

Product currently unavailable

Part no. 2073237

Ford Transit Mk7 Alternator Generator 2.2 TDCi Diesel 1709003 AC-1T10300-BB

Product currently unavailable

Part no. 7599881-11

BMW E87 LCI E90 E91 N43 170HP Engine Control Unit ECU KIT DME 7599881 Automatic

Product currently unavailable

Part no. 6936653

BMW 1 3 Series E81 E82 E84 E87 E88 E90 E91 E92 Power Distribution Box 6936653

Product currently unavailable

Part no. A2118705226

Mercedes W211 W219 Navigation Reader DVD CD Player Control Unit A2118705226

Product currently unavailable

Part no. 9152262-1

BMW X5 X6 E70 E71 Front Impact Crash Sensor Module 9152262

Product currently unavailable

Part no. 8W0971192

Audi A4 B9 A5 F5 Front Camera Wiring Harness Cable 88W0971192

Product currently unavailable

Part no. 9268802

Mini Cooper Countryman R60 Champ 2 Navigation Radio DAB Player Unit 9268802

Product currently unavailable

Part no. 5FJ919606A

Seat Ibiza KJ1 Dashboard Onboard Screen Monitor Touchscreen Display 5FJ919606A

Product currently unavailable

Part no. 9207360

BMW E60 E87 LCI E90 Hands-free Bluetooth High Basis MULF2 9207360

Product currently unavailable

Part no. 9170453-1

BMW X5 E70 Footwell ECU Light Control Unit Module Xenon FRM II Lear 9170453

Product currently unavailable

Part no. E90-ANDROID-3

BMW E84 E90 Infotainment Media System Unit 9" Screen GPS Android CarPlay

Product currently unavailable

Part no. 7599881-2

BMW E87 LCI E90 118i 318i N43 143HP ECU KIT DME 7599881 CAS3 + Key Automatic

Product currently unavailable

Part no. 3420786

BMW X3 E83 Light ECU Control Module Unit Lear LM MAN.LWR 3420786

Product currently unavailable

Part no. 9134855-1

Battery Lead BMW E81 E87 Battery Cable Negative IBS 9134855 61129134855

Product currently unavailable

Part no. 7796818

BMW X5 E53 3.0d M57N Wiring Loom Harness Engine Automatic Gearbox

Product currently unavailable

Part no. 6936801

BMW Z4 E85 Roadster Cabrio Convertible Folding Top Roof Module

Product currently unavailable

Part no. 6977982-3

Mini Cooper R50 R53 R56 R57 R60 Relay No Contact Taubenblau Blue Set 4X 6977982

Product currently unavailable

Part no. 1138730-1

On Board Monitor BMW X5 E70 X6 E71 Sat Nav System Screen Display 8,8" 1138730

Product currently unavailable

Part no. 7PP907279CT

Porsche Macan 95B Body Control Unit Module BCM 7PP907279CT

Product currently unavailable

Part no. 2D0959800

Volkswagen LT 35 Door Module Central Locking System Module Unit 2D0959800

Product currently unavailable

Part no. 03E906019M-2

Volkswagen Polo 6R 1.2 Petrol CGPB 60HP Engine Control ECU Kit 03E906019M Manual

Product currently unavailable

Part no. A1644460710

Mercedes W221 DSM ISM Automatic Gearbox Control Unit Module ECU A1644460710

Product currently unavailable

Part no. 1543107

Ford Transit Connect Alternator Bracket Mount Support 1.8 TDCi 6C1Q-10K019-AC

Product currently unavailable

Part no. 9215184

BMW E60 E87 E90 E91 Hands Free Electronics Charging Module MULF2 9215184

Product currently unavailable

Part no. 7614896

Ignition Harness BMW F10 F12 F07 GT Petrol N63 Engine Ignition Wiring 7614896

Product currently unavailable

Part no. 079903021JX

Audi S8 D3 S6 C6 Alternator Water Cooled 190A 14V 5.2 FSI V10 079903021J

Product currently unavailable

Part no. 3455701-2

Mini R55 Footwell Light Module Control Unit ECU PL3 FRM II High EKS 3455701

Product currently unavailable

Part no. A2059009427

Mercedes W205 Front Air Module SRS Control Unit ECU A2059009427

Product currently unavailable

Part no. 6C0959655J

Control Unit Seat Ibiza 6J VW Polo 6C 6R Air Module Unit ECU Bosch 6C0959655J

Product currently unavailable

Part no. A0025428119

Mercedes W164 Relay 12V 30A Main Current Relay Trailer A0025428119 4RC93336400

Product currently unavailable

Part no. A2218706586

Mercedes W221 Front Door Control Module Unit Left N/S ECU A2218706586

Product currently unavailable

BMW E39 X5 E53 X3 E83 PDC Parking Distance Control Unit Active Module 9116542

-5%

Part no. 9116542

BMW E39 X5 E53 X3 E83 PDC Parking Distance Control Unit Active Module 9116542

Product currently unavailable

Part no. 06K903026L-1

Audi S3 8Y VW Golf Mk8 R GTI Alternator Generator 2.0 TFSI 14V 140A 06K903026L

Product currently unavailable

Part no. 038906019NJ-1

Skoda Fabia Mk1 6Y Engine Unit Module ECU Manual BLT 130HP 1.9 TDI 038906019NJ

Product currently unavailable

...

Showing 15643-15741 of 21511 products