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 Battery Terminal Fuse Socket Retainer 6C0915343A

Product currently unavailable

Part no. 03C907309Q

Volkswagen Touran 1T 1.4 TSI CTHC 140HP Engine ECU 03C907309Q Automatic

Product currently unavailable

Part no. 8K0906264B-1

Audi A4 B8 1.8 TFSI CJEB 170HP Engine ECU Kit 8K0906264B Key + Ignition + Lock

Product currently unavailable

Part no. 4H0907553E

Audi A8L 4H Air Suspension Control Unit Module ECU 4H0907553E

Product currently unavailable

Part no. 4H0907063DA

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

Product currently unavailable

Part no. 8S0035465B

Audi TT FV Stereo Radio Sound System Speaker Amp Amplifier 8S0035465B

Product currently unavailable

Part no. A2165402945-1

Mercedes ML W164 Distronic Radar Sensor Cruise Control Unit Module A2165402945

Product currently unavailable

Part no. A2059005036

Mercedes W205 W253 CD Radio Audio Sat Nav Navigation Head Unit A2059005036

Product currently unavailable

Part no. 6G9N-14B296-AB

Land Rover Freelander 2 Yaw Rate Sensor 6G9N-14B296-AB

Product currently unavailable

Part no. 9174269-1

BMW F07 F10 F11 Speakers Amplifier Bracket Holder Mount Unit Module 9174269

Product currently unavailable

Part no. 9360344

BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK 9360344

Product currently unavailable

Part no. 5Q0959592A

Audi A3 8V VW Golf 5G R 5G Door Control Unit Passenger Front Left N/S 5Q0959592A

Product currently unavailable

Part no. A2049067702-1

Mercedes W204 Fuse Box Rear SAM Module Electrical Fuse Unit A2049067702

Product currently unavailable

Part no. A2769007300-2

Mercedes R172 AMG SLC 43 276.822 Engine Control Module ECU Kit A2769007300

Product currently unavailable

Part no. 8P0035186P-1

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

Product currently unavailable

Part no. 5E0971693C

Skoda Octavia MK3 Door Wiring Loom Harness Cable Wire Rear Left N/S 5E0971693C

Product currently unavailable

Part no. 9267458

BMW F11 Touring Body Control Module Unit Controller V7 PL6 JBBFE III 9267458

Product currently unavailable

Part no. 1Q0959255A

VW Volkswagen Eos 1F Convertible Roof Control Unit Module 1Q0959255A

Product currently unavailable

Part no. YC15-10A687-A9W

Ford Transit Battery Cover Fuse Box Trim Panel Lid YC15-10A687-A9W

Product currently unavailable

Part no. 3449688

BMW X3 E83 LCI Light Control Module Lear LM II LWR 3449688 61353449688

Product currently unavailable

Part no. A1685405908

Mercedes-Benz A-Class W168 Door Cable Harness Wiring Loom Rear A1685405908

Product currently unavailable

Part no. A1645403372

Mercedes ML W164 Fuse Box Relay Control Unit Rear A1645403372

Product currently unavailable

Part no. A2218708093

Mercedes W221 Head Unit DVD High Line Radio Player Navigation A2218708093

Product currently unavailable

Part no. A2129008207

Mercedes W204 C200 Fuse Box Front SAM Control Module Relay Box A2129008207

Product currently unavailable

Part no. 7799856-3

BMW E60 E61 E90 E91 330d 530d M57N2 Engine DDE Control Unit 7799856 Automatic

Product currently unavailable

Part no. A1648701589

Mercedes ML W164 Aerial Antenna Amplifier Module Unit A1648701589

Product currently unavailable

Part no. A6395460035

Mercedes Vito W447 W639 Battery Terminal Protection Cap Cover A6395460035

Product currently unavailable

Part no. 1702103

Battery Terminal Cover BMW E39 Mini R50 R52 R53 Trim Base B + Positive 1702103

Product currently unavailable

Part no. 6905921

BMW 3 5 7 X5 E39 E46 E53 E65 GPS Receiver Control Unit Module Japan 6905921

Product currently unavailable

Part no. A2138203202

Mercedes W213 Bluetooth Module Multimedia Control Unit ECU A2138203202

Product currently unavailable

Part no. A0009822923-1

Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Grey SET X2 A0009822923

Product currently unavailable

Part no. 6872319

BMW F30 F31 F32 Towing Hitch Trailer Hook Module Control Unit 6872319

Product currently unavailable

Part no. 5Q0959392D

VW Volkswagen Golf 7 Front Door Control Module Passenger Side Unit 5Q0959392D

Product currently unavailable

Part no. 3C0953549A

VW Passat B6 Steering Wheel Steering Column Control Module 3C0953549A

Product currently unavailable

Part no. 7533651-1

BMW E60 E61 530i M54 231HP ECU Kit DME 7533651 + CAS2 + 2 Keys Automatic

Product currently unavailable

Part no. 9470037

Differential Locking Module BMW F40 F48 Rear Axle Control Unit ECU 9470037

Product currently unavailable

Part no. 7624048-1

BMW Z4 E89 23i N52N 204HP sDrive Engine ECU Kit CAS3 + Key 7624048 Manual

Product currently unavailable

Part no. A9079000305

Mercedes Sprinter W907 W910 Body Control Module BCM V2 ECU A9079000305

Product currently unavailable

Part no. 4B0941471

Audi S3 8L A6 C5 Xenon Headlight Ballast Module Control Unit 4B0941471

Product currently unavailable

Part no. 059911024

Audi A4 B7 A6 C6 Diesel Starter Motor 3.0 TDI 059911024

Product currently unavailable

Part no. 9252004

BMW F30 Display Central Information Screen 8,8" Navigation Professional 9252004

Product currently unavailable

Part no. 8600124-3

Mini Cooper R56 LCI R60 N16 Engine Control ECU DME 8600124 CAS3 Key Manual

Product currently unavailable

Part no. 9202152-1

BMW E81 E87 E88 E90 E91 Radio Business CD Player 9202152

Product currently unavailable

Part no. A4479002405

Head Unit Mercedes W447 Radio Navigation Audio 15 Control Unit A4479002405

Product currently unavailable

Part no. KK2112A650FA-3

Ford Transit Custom 2.0 EcoBlue 130HP Engine Control ECU KK21-12A650-FA Manual

Product currently unavailable

Part no. 7533270-1

Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A 7533270

Product currently unavailable

Part no. KK3T-15604-FAM

Ford Transit Custom BCM Body Control Module Fuse Box Unit KK3T-15604-FAM

Product currently unavailable

Part no. 8791692

BMW F10 F20 F30 Head Unit Basis Media Navigation Headunit 8791692

Product currently unavailable

Part no. A2219005404

Mercedes R231 Seat Memory Control Unit Module Front Right A2219005404

Product currently unavailable

Part no. 8W1907063AN

Audi A4 B9 A5 F5 Body Control Comfort Unit Module BCM Unit ECU 8W1907063AN

Product currently unavailable

Part no. A1729000814

Head Unit Mercedes SLK R172 Radio Media Sat Nav Unit Switch Panel A1729000814

Product currently unavailable

Part no. A2139068601

Mercedes W205 W213 Actuator Drive Exhaust Flap Control Unit A2139068601

Product currently unavailable

Part no. 9325537

BMW 5 Series F10 Electric Parking Brake Module Cable Wiring Loom 9325537

Product currently unavailable

Part no. 6882964

BMW F01 LCI F02 LCI F12 LCI F13 F13 LCI ICM Control Unit Module ECU 6882964

Product currently unavailable

Part no. 07K903023J

Audi RS3 8V 2.5 TFSI Alternator 14V 180A 07K903023J

Product currently unavailable

Part no. 9230445-3

BMW E93 Footwell Light Control Module Lear FRM3R PL2 9230445

Product currently unavailable

Part no. AT1T-18C815-BA

Radio Head Unit Ford Transit Connect 6000 CD Media Player Unit AT1T-18C815-BA

Product currently unavailable

Part no. 9127687

BMW E88 Convertible Aerial Base Roof Antenna 9127687

Product currently unavailable

Part no. 9675878480

Fuse Box Citroen Berlingo Peugeot Partner BSM Control Unit Module 9675878480

Product currently unavailable

Part no. 7589971-13

Mini Cooper R55 R56 R57 N12 1.6 120HP ECU Kit DME 7589971 CAS3 Key Automatic

Product currently unavailable

Part no. A2139009722

Mercedes W213 SAM Body ECU Control Module Unit A2139009722

Product currently unavailable

Part no. 038971803

Volkswagen VW Caddy 2K Injector Wiring Harness Loom 038971803

Product currently unavailable

Part no. A1669000220

Mercedes GLE C292 Coupe Air Control Module Unit Bosch SRS A1669000220

Product currently unavailable

Part no. 7527072-3

BMW Z4 E85 2.5i Engine M54 192HP ECU Kit DME 7527072 + EWS3 + Key Automatic

Product currently unavailable

Part no. 6907395

BMW X5 Series E53 Electrical Power Distribution Fuse Box 6907395

Product currently unavailable

Part no. F1ET-14240-LEF

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

Product currently unavailable

Part no. A1179061700-1

Mercedes CLA C117 Rear Tail Light Lamp Wiring Harness Cable Left N/S A1179061700

Product currently unavailable

Part no. 6J4971161M

Seat Ibiza 6J Door Wiring Rear Right O/S Harness Loom Cable 6J4971161M

Product currently unavailable

Part no. 5A402E6

BMW F45 F46 F48 ECU Body Domain Controller BDC Control Unit Module 5A402E6

Product currently unavailable

Part no. 55582510

Vauxhall Opel Insignia A 2.0 CDTI Alternator Bracket Belt Tensioner 55582510

Product currently unavailable

Part no. 9177871

BMW E60 LCI E61 Map Fuse Box Grouping Diagram Card 9156547

Product currently unavailable

Part no. 6982348

BMW 5 Series E60 E61 Wiring Drivers Side Loom Door Cables Front Right O/S

Product currently unavailable

Part no. F1BT-18B955-GA

Ford Fiesta Mk7 MMI Radio Stereo CD Player Display Screen F1BT-18B955-GA

Product currently unavailable

Part no. 9118071

BMW 5 Series E60 E63 Radio M-ASK M-Audio System Controller CD Player 6944109

Product currently unavailable

Part no. 1S0959651

Volkswagen Touareg 7P Front Impact Crash Sensor Air Module 1S0959651

Product currently unavailable

Part no. 9353990

Audio Amplifier BMW F20 F21 Mini F55 F56 Top Hifi Harman Kardon Unit 9353990

Product currently unavailable

Part no. 9290990

Head Unit BMW F20 F21 F30 Radio Professional CD Player Controller Module 9290990

Product currently unavailable

Part no. 8715804

BMW GT G32 ECU Body Domain Controller BDC Comfort Unit Module 8715804

Product currently unavailable

Part no. 8472346-1

BMW X1 F48 sDrive 18d B47B 150HP Diesel Engine Control ECU Kit 8472346 Automatic

Product currently unavailable

Part no. 2447787

BMW G11 G30 G31 X4 F26 Telematics Module Bluetooth Control Unit ECU 2447787

Product currently unavailable

Part no. 4H0907064BN

Audi A6 C7 Saloon CCM Comfort Control Module Onboard Unit ECU 4H0907064BN

Product currently unavailable

Part no. A2479001306

Mercedes W177 W247 SAM Module Body Comfort Control Unit A2479001306

Product currently unavailable

Part no. A6519005301-13

Mercedes S212 E250CDI BE OM651.924 204HP Engine Unit Module ECU Kit A6519005301

Product currently unavailable

Part no. 5K0907115-2

Volkswagen Golf Mk6 2.0 TSI CCZB 211HP Engine Control Unit ECU 5K0907115 Manual

Product currently unavailable

Part no. A6549009400-4

Mercedes W447 W907 W910 150HP OM654.920 Engine Control Module ECU A6549009400

Product currently unavailable

Part no. 8580389

BMW F40 F45 X1 F48 Mini F55 F56 F57 F60 Diesel Engine Starter Motor 8580389

Product currently unavailable

Part no. A2661531491-4

Mercedes W169 A160 266.920 95HP Engine Control Unit ECU Kit A2661531491 Key Lock

Product currently unavailable

Part no. A1679003118

Door Module Mercedes W205 W213 X253 Front Right O/S Control Unit A1679003118

Product currently unavailable

Part no. 079911022

Audi A4 S4 B8 A5 S5 8F Engine Starter Motor 3.0 TFSI Petrol 079911022

Product currently unavailable

Part no. 6G9T-14D572-LA

Land Rover Freelander 2 Fuse Box Body Control Module ECU BCM Unit 6G9T14D572LA

Product currently unavailable

Part no. a1699007900

Mercedes W169 W639 COMAND Navigation Head Unit Radio Sat Nav Screen A1699007900

Product currently unavailable

Part no. 5E0919605H

Skoda Octavia 5E Sat Navi Stereo Radio Display Audio Head Unit Player 5E0919605H

Product currently unavailable

Part no. 9674290780

Airbag Module Citroen Berlingo Peugeot Partner Control Unit Sensor 9674290780

Product currently unavailable

Part no. 6906613

BMW E87 E90 E91 Power Distribution Fuse Box Front 6906613

Product currently unavailable

Part no. 6939069

BMW X5 E53 X3 E83 Control Unit Xenon Adaptive Headlight Ballast 6939069

Product currently unavailable

Part no. 6940698

BMW E60 IBS Negative Battery Lead Cable Connector 6944687

Product currently unavailable

Part no. 3457426

Footwell Module Mini R56 LCI Light Low EKS ECU PL3 FRM3R Lear 3457426

Product currently unavailable

Part no. A1715451301-1

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

Product currently unavailable

Part no. 7936364

Mini F55 F56 F57 Integrated Supply Module Z11 Control Unit Module 7936364

Product currently unavailable

...

Showing 18316-18414 of 18495 products