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 A7 4G A6 C7 Daytime Running Lights DRL LED Headlight Module Unit 4G0907697J

Product currently unavailable

Part no. 4H0906093D

Fuel Pump Audi A8 D4 Q7 4L Diesel Control Unit Module 4H0906093D

Product currently unavailable

Part no. 6868873

Suspension Control Module BMW X5 F15 F20 F30 VDC Unit 6868873

Product currently unavailable

Part no. 7787354

BMW X3 E46 E60 LCI E83 E87 Starter Motor 2.0KW Diesel M47N2 7787354

Product currently unavailable

Part no. 9251975-1

Light Module BMW F11 Control Footwell Lightning ECU Unit FRM3 9251975

Product currently unavailable

Part no. A1695451940

Mercedes W169 W245 Fuse Box Module Unit A1695451940

Product currently unavailable

Part no. 9199850

BMW F11 Touring F23 Cabrio DAB Radio Antenna Amplifier Booster Unit 9199850

Product currently unavailable

Part no. 1K0907530AD

VW Volkswagen Golf 6 Gateway Control Unit Module ECU 1K0907530AD

Product currently unavailable

Part no. 4F0035053B

Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035053B

Product currently unavailable

Part no. 02M911023N

Volkswagen Touran Engine Starter Motor 02M911023N

Product currently unavailable

Part no. A2118701085

Mercedes R171 Navigation Processor Multimedia Control Module Unit A2118701085

Product currently unavailable

Part no. 7422700

Smart Opener Module BMW F01 F07 F10 F30 Trunk Open Control Unit ECU 7422700

Product currently unavailable

Part no. 3457528-1

BMW Mini Countryman R60 Footwell Light Module High EKS ECU PL3 FRM3R 3457528

Product currently unavailable

Part no. 02Z911024K

VW Volkswagen Caddy Maxi 1.6 TDI Diesel Starter Motor 02Z911024K

Product currently unavailable

Part no. A0051512101

Mercedes W168 W169 W245 Petrol Engine Starter Motor A0051512101

Product currently unavailable

Part no. 8494843

Headlight Module BMW F83 M4 F33 LCi FLE2 Front Lights Right Left N/O/S 8494843

Product currently unavailable

Part no. A2059054415

Heater Climate Mercedes W205 C253 Control A/C Unit Switch Panel A2059054415

Product currently unavailable

Part no. A6519002803

Mercedes W251 R320 CDI OM642 4Matic Engine Unit ECU KIT A6519002803 Key Lock

Product currently unavailable

Part no. 8506666-2

Mini Cooper D R60 ALL4 N47N Diesel Engine ECU Kit DDE 8506666 CAS3 Key Manual

Product currently unavailable

Part no. A0009001900

Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0009001900

Product currently unavailable

Part no. 6939811

BMW E85 Roadster Cabrio Safety Information Air Module 6939811

Product currently unavailable

Part no. 9229240

Radio Business BMW E81 E87 E90 LCI CD Player 9229240

Product currently unavailable

Part no. A2215450001

Mercedes W221 Fuse Box Front Relay Control Unit Base Module A2215450001

Product currently unavailable

Part no. A6511500156

Engine Wiring Mercedes W204 OM651 Diesel Harness Loom Cable A6511500156

Product currently unavailable

Part no. 1K0915443A

VW Volkswagen Golf Mk5 Battery Lid Fuse Box Tray Housing Cover Trim 1K0915443A

Product currently unavailable

Part no. A1635452132

Mercedes ML W163 Seat Module Control Unit Front Left Right N/O/S A1635452132

Product currently unavailable

Part no. 9274569

CIC Professional Unit BMW F01 F10 Sat Nav Infotainment Radio Player Head 9274569

Product currently unavailable

Part no. A0035421619-1

Mercedes W177 Relay 052 Fuse Box Relay Slot B D E 70A Tyco SET X2 A0035421619

Product currently unavailable

Part no. 8T0919603C

Audi A5 8T Display Screen Radio Multimedia Navigation Display 8T0919603C

Product currently unavailable

Part no. 9205480

BMW 1 Series E82 E88 Positive Battery Lead Cable Wiring 9205480

Product currently unavailable

Part no. 7607685

Mini One R56 LCI R60 N16 98HP Petrol Engine ECU DME 7607685 Control Unit Manual

Product currently unavailable

Part no. 9249080-1

BMW E87 LCI Footwell Light Control Unit Module ECU Lear FRM3R PL2 9249080

Product currently unavailable

Part no. 02E911022C

Audi A3 8V 2.0 TDI DFGA Diesel Starter Motor 02E911022C

Product currently unavailable

Part no. A6397600204

Bowden Cable Mercedes W639 Door Handle Catch Top Rear Right O/S Wire A6397600204

Product currently unavailable

Part no. 9133329

BMW E39 E46 E81 E87 E90 Hands-Free Electronics Charging Module MULF 9133329

Product currently unavailable

Part no. A2045400608

Mercedes W204 Front Bumper PDC Wiring Parking Loom Harness A2045400608

Product currently unavailable

Part no. A6429005601

Mercedes C207 Glow Plug Relay Unit Control Module A6429005601

Product currently unavailable

Part no. 9891698

PDC Module BMW G30 G31 G11 X3 G01 Parking Assistant Control Unit 9891698

Product currently unavailable

Part no. 6986077

BMW E81 E87 E90 E91 E92 6-disc CD Changer Without Magazine 6986077

Product currently unavailable

Part no. 9187647

BMW E82 E90 E92 LCI Antenna Amplifier Diversity 9187647

Product currently unavailable

Part no. 03L906018JG

Audi A5 8F 2.0 TDI CGLC 177HP Diesel Engine Control Unit ECU 03L906018JG Manual

Product currently unavailable

Part no. A6511501488

Mercedes Vito W639 OM651.940 Diesel Engine Wiring Cable Loom Harness A6511501488

Product currently unavailable

Part no. 8519663-7

Mini Cooper SD R55 R56 LCI R60 N47N Diesel Engine ECU Kit DDE CAS 3 Key 8519663

Product currently unavailable

Part no. 3456051-1

Mini Cooper R57 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456051

Product currently unavailable

Part no. 9236461

BMW F10 Footwell Light Control Unit Module ECU FRM III 9236461

Product currently unavailable

Part no. 9176886

BMW 3 Series E91 ECU Body Control Module H4 Electronic Box 61359176886 9176886

Product currently unavailable

Part no. 6927313

Seat Module BMW E60 E61 E65 E66 Front Control Unit ECU 6927313

Product currently unavailable

Part no. 5K0035730D

VW Volkswagen Golf VI 6 Bluetooth Interface Control Module Unit ECU 5K0035730D

Product currently unavailable

Part no. 8200798585

Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Glow Plug Relay Unit Black 8200798585

Product currently unavailable

Part no. A0025424019-1

Mercedes W906 W907 Cut Off Electric Relay Module A0025424019

Product currently unavailable

Part no. 8K0959663F

Audi A6 C7 Voltage Converter Stabilizer Control Module Unit ECU 8K0959663F

Product currently unavailable

Part no. 9200101

BMW E87 E90 Radio Business CD Player Audio Control Unit E81 E91 9200101

Product currently unavailable

Part no. 8379375

BMW X5 E53 Loudspeaker Loud Speaker Tweeter Front 65138379375 8379375

Product currently unavailable

Part no. A1779008206

Mercedes W177 Ambience Illumination Light Control Module Unit A1779008206

Product currently unavailable

Part no. 8506281-2

BMW E87 LCI E90 116d 316d N47 Engine ECU KIT DDE 8506281 + CAS3 + Key Manual

Product currently unavailable

Part no. 059903016JX

Audi A5 8T 3.0 TDI CCWA Diesel Alternator 059903016J

Product currently unavailable

Part no. 7427905

BMW F33 F83 M4 Convertible Neck Warmer Control Unit Heater Module ECU 7427905

Product currently unavailable

Part no. 8506281-5

BMW E87 E90 LCI 116d 316d Diesel N47 ECU KIT Engine DDE 8506281 CAS3 Key Manual

Product currently unavailable

Part no. 9179808

BMW E60 E61 E90 E91 On-board Navigation Display Monitor Screen 6,5" 9179808

Product currently unavailable

Part no. A6121536379-2

Mercedes ML W163 270 CDI Engine Control ECU Kit Key Automatic A6121536379

Product currently unavailable

Part no. A1694403805

Mercedes-Benz A B W169 W245 Starter Alternator Wiring Loom Harness A1694403805

Product currently unavailable

Part no. 9182571

BMW 1 Series E82 E88 Rear Bumper Wiring Loom PDC Harness 9182571

Product currently unavailable

Part no. 8598759

BMW F20 F30 LCI Diesel B37 B47 ECU DDE Engine Control Unit 8598759 Automatic

Product currently unavailable

Part no. 9191568

BMW X5 E70 CCC Navigation System CD Player Sat Nav Head Unit 9191568

Product currently unavailable

Part no. 9243913

BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9243913

Product currently unavailable

Part no. 231A08052R

Renault Trafic 3 BSI BSM Body EMM-T4 L3 Control Unit Module 231A08052R

Product currently unavailable

Part no. 6974310

BMW 5 6 Series E60 E63 E64 Body Control Module ECU Control Unit 6974310

Product currently unavailable

Part no. 6862244

BMW Z4 E89 Roadster Control Unit EMF Rear Wheel Brake Module 6794260

Product currently unavailable

Part no. 4L0035223D

Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D

Product currently unavailable

Part no. 5K0937084D

Volkswagen Scirocco Mk3 Comfort BCM Control Module Unit ECU 5K0937084D

Product currently unavailable

Part no. 8506434-1

BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS 3 Key 8506434

Product currently unavailable

Part no. A4479063000

Mercedes Vito W447 Heater Blower Motor Fan Resistor A4479063000

Product currently unavailable

Part no. A2129008404

Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Navigation A2129008404

Product currently unavailable

Part no. 9311035

Navigation Head Unit BMW F10 F20 F21 F30 F31 Media Player High 9311035

Product currently unavailable

Part no. 8510592-1

BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS3 Key 8510592

Product currently unavailable

Part no. 9321002

Battery Cable BMW X3 F25 X4 F26 Underfloor Positive Plus Lead Harness 9321002

Product currently unavailable

Part no. 9133335

BMW 1 3 X1 Z4 Series E81 E87 E88 E89 E90 E91 E92 E93 Radio Business CD 9133335

Product currently unavailable

Part no. 6855189

VDC Module BMW F20 F21 F30 F31 Rear Suspension Level Control Unit 6855189

Product currently unavailable

Part no. A0055422018

ESP Sensor Mercedes W164 W221 Yaw Rotation Rate Sensor A0055422018

Product currently unavailable

Part no. 8V0857273P

Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P

Product currently unavailable

Part no. 6962767

BMW Z4 Series E85 Roadster Cabrio Safety Information Module Airbag 6962767

Product currently unavailable

Part no. 8K0971095E

Audi A4 B8 Front Bumper PDC Wiring Park Assist Sensor Harness 8K0971095E

Product currently unavailable

Part no. A0009009209

Mercedes W205 C253 Diesel Adblue Module Control Unit ECU A0009009209

Product currently unavailable

Part no. 09D927750FA

Volkswagen Touareg 7L Automatic Gearbox Module Control Unit ECU 09D927750FA

Product currently unavailable

Part no. A2059000441

Mercedes W205 Display Screen Multimedia Navigation Sat Head Unit A2059000441

Product currently unavailable

Part no. 6987997

BMW 1 Series E87 Footwell Light Control Module Unit PL2 FRMFA Lear 6987997

Product currently unavailable

Part no. 9246500

BMW E90 LCI Professional CD Radio Player 9246500

Product currently unavailable

Part no. 6956020

BMW MINI Cooper Cabrio Convertible R52 Rear Bumper PDC Cables Wiring Loom Set

Product currently unavailable

Part no. 6941503

BMW X5 Series E53 Cable Harness Door Front Right Left N/O/S 6941503

Product currently unavailable

Part no. A1698207026

Mercedes-Benz A B Class W169 W245 Door Control Unit Right O/S Front A1698207026

Product currently unavailable

Part no. A2129003708

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

Product currently unavailable

Part no. 6983009

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

Product currently unavailable

Part no. 9131776

BMW 3 Series E90 ECU Body Control Module H1 PL2 JBBFE Junction Box 9131776

Product currently unavailable

Part no. A0009820012

Mercedes W176 W212 W246 Voltage Converter Power Distributor Inverter

Product currently unavailable

Part no. 6914396

Mini Cooper R50 R52 R53 Support Bracket Navigation Computer 6914396

Product currently unavailable

Part no. GK2112B533AA

Ford Transit Mk8 VI Glow Plug Controller Unit Module Relay GK2112B533AA

Product currently unavailable

Part no. 5Q0915181K

Volkswagen Golf Mk7 Negative Battery Terminal Cable Wiring Loom 5Q0915181K

Product currently unavailable

Part no. 4H0919475AA

Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475AA

Product currently unavailable

Part no. 3456987

Mini Cooper R60 Footwell Light Module Unit High EKS ECU PL3 FRM3R Lear 3456987

Product currently unavailable

...

Showing 12475-12573 of 22739 products