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

BMW E63 E64 Door Wiring Loom Harness Cable Front Right O/S 9175978

Product currently unavailable

Part no. 8782591

Mini F55 F56 Roof Antenna AM FM GPS TEL 8782591 65208782591

Product currently unavailable

Part no. T1000-14848

BMW Disc High Navigation DVD 2009-2 Road Map Europe T1000-14848

Product currently unavailable

Part no. 9671583580

Peugeot 207 1.6 HDI Diesel Glow Plug Wiring Loom Cable Wiring 9671583580

Product currently unavailable

Part no. A2711539179-1

Mercedes W203 C200 Kompressor 163HP M271.940 Engine ECU Kit A2711539179 Key Lock

Product currently unavailable

Part no. 9129019

Sliding Roof Module BMW E61 E63 Lifting Sunroof Panoramic Control Unit 9129019

Product currently unavailable

Part no. 9664843780-1

Citroen Berlingo B9 1.6 HDI 9HT Engine Control Unit ECU EDC 9664843780 Manual

Product currently unavailable

Part no. 3AA962243

Audi A8L 4H Tailgate Lift Boot Lid Control Unit Module Trunk 3AA962243

Product currently unavailable

Part no. 8470176-5

Mini Cooper D F55 F56 B37 1.5 116HP Engine Control Unit ECU DME 8470176 Manual

Product currently unavailable

Part no. 9240530-2

BMW E91 LCI Footwell Light Control Unit Module LED Basis FRM3R PL2 9240530

Product currently unavailable

Part no. 8613000-1

BMW E82 E88 E90 E91 E92 125i 325i N52N 218HP ECU Kit DME 8613000 CAS3 Key Manual

Product currently unavailable

Part no. 8688838

High Voltage Inverter BMW i3 I01 Hybrid 60Ah Rex Electrical Machine Electronics

Product currently unavailable

Part no. 8P0057195GX

Audi A3 8P Symphony Multimedia Stereo CD Player Radio Head Unit 8P0057195GX

Product currently unavailable

Part no. 9286941-1

BMW F13 ECU Body Control Module Junction Box V2 PL6 JBBFE III 9286941

Product currently unavailable

Part no. A2059061605

Mercedes W205 S205 C253 Door Ambient Light Wiring Front Right O/S A2059061605

Product currently unavailable

Part no. 3456587-2

Light Module Mini R57 LCI Cooper One Footwell Low EKS ECU PL3 FRM3R 3456587

Product currently unavailable

Part no. 1398644080

Peugeot Boxer III Citroen Relay III Fuse Box Control Unit Module 1398644080

Product currently unavailable

Part no. 8574095-4

BMW F20 F21 F30 116d 316d Diesel N47N Engine ECU DDE 8574095 Key Lock FEM Manual

Product currently unavailable

Part no. 4G8971095C

Audi A7 4G PDC Sensor Wiring Loom Harness Cable Front Bumper 4G8971095C

Product currently unavailable

Part no. 565035874

Skoda Karoq NU7 Radio Sat Nav Multimedia MMI Head Unit 565035874

Product currently unavailable

Part no. A2518203910

Mercedes W164 Dew Point Fan Blower Humidity Resistance Sensor Unit A2518203910

Product currently unavailable

Part no. 8806972

Door Wiring BMW i3 I01 LCI Passenger Door Cable Harness Wiring Loom 8806972

Product currently unavailable

Part no. 9170454

BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9170454

Product currently unavailable

Part no. 8691825

BMW F20 LCI 118i B38 136HP Petrol Engine Control Unit ECU DME 8691825 Manual

Product currently unavailable

Part no. 5A209C3

PDC Wiring BMW X3 G01 LCI X3M F97 LCI Rear Bumper Parking PDC Harness 5A209C3

Product currently unavailable

Part no. A2721533391-1

Mercedes W209 M272.940 CLK280 231HP Engine Module ECU Kit A2721531291 Key

Product currently unavailable

Part no. RHD-4G2919601P

Audi RS6 C7 Display Screen Radio Multimedia Navigation Sat 4G2919601P

Product currently unavailable

Part no. A4475407880

Mercedes Vito W447 Front Passenger Side Fuse Box Control Unit Module A4475407880

Product currently unavailable

Part no. 9824985

BMW F22 F32 X4M G02 F98 CD Player Radio Audio Sat Nav Navigation 9824985

Product currently unavailable

Part no. A1779006003

SRS Module Mercedes W177 Safety Belt Tensioner Airbag Control A1779006003

Product currently unavailable

Part no. 8P3035223

Audi S3 8P Audio Sound System Amplifier Bose 8P3035223

Product currently unavailable

Part no. 8V0035020B-1

Dashboard Sat Navigation Audi A3 S3 8V Unit System 8V0035020B

Product currently unavailable

Part no. 7068054

BMW 5 7 Series E60 E65 Front Seat Transmission Bracket Arm 7068054

Product currently unavailable

Part no. 3Q0907590D

Lane Assist Module Audi A3 S3 RS3 8V Blindspot Control Unit Left N/S 3Q0907590D

Product currently unavailable

Part no. 8T0907566B

Audi A4 B8 Blind Spot Radar Sensor Control Module Rear Right O/S 8T0907566B

Product currently unavailable

Part no. FV6T14324BAB

Ford Transit Connect Mk2 II Starter Earth Ground Wire Cable FV6T14324BAB

Product currently unavailable

Part no. 4T1112A650CB

Ford Transit Connect 1.8 TDCi 90HP Engine Control ECU 4T1112A650CB Manual

Product currently unavailable

Part no. A6079002200

Mercedes W176 A180 CDI OM607 Engine Unit Module ECU A6079002200 Automatic

Product currently unavailable

Part no. 8618448

BMW F15 High Voltage Accumulator Cable Wiring Harness Positive 8618448

Product currently unavailable

Part no. RHD-A2135409130

Mercedes W213 Front Door Wiring Harness Keyless Driver's Side A2135409130

Product currently unavailable

Part no. A6519009402

Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402

Product currently unavailable

Part no. 8W0959595G

Audi A4 B9 Rear Door Control Module Unit ECU Left Right N/O/S 8W0959595G

Product currently unavailable

Part no. A2139005009

Mercedes W213 Door Module Rear Right O/S Control Unit A2139005009

Product currently unavailable

Part no. rhd-7572404

BMW 1 3 Series E87 E90 Petrol N52 Wiring Loom Harness Engine Gearbox Automatic

Product currently unavailable

Part no. 5A693E4

Power Distributor BMW X3 G01 LCI X4 G02 LCI Rear Distribution Box B+ 5A693E4

Product currently unavailable

Part no. 8486839

BMW F20 LCI 118i B38 136HP Engine ECU Kit DME 8486839 + FEM + Key Automatic

Product currently unavailable

Part no. 5WA959663A

Volkswagen Golf 8 1.5 eTSI Engine DFYA Voltage Converter Module 5WA959663A

Product currently unavailable

Part no. 7548769-3

BMW X3 E83 2.5i Engine M54 192HP ECU Kit DME 7548769 EWS3 + Key Automatic

Product currently unavailable

Part no. 3C4971693LP

Volkswagen VW Passat B6 Door Harness Loom Cable Wiring Rear Left N/S 3C4971693KJ

Product currently unavailable

Part no. 4B0035111B

Audi A6 C5 6 Disc CD Changer Control Unit Module Player With Magazine 4B0035111B

Product currently unavailable

Part no. 7808124-2

BMW E87 E90 118d 318d M47N2 ECU Kit Engine Control Unit DDE 7808124 CAS2 Key

Product currently unavailable

Part no. A6519000601-2

Mercedes W906 313 CDI OM651.955 Diesel Engine ECU Kit A6519000601 Key Lock

Product currently unavailable

Part no. RHD-8R2035678

Audi A4 B8 Dashboard Reader Navi MMI DVD CD Player Head Unit 8R2035678

Product currently unavailable

Part no. A2711539779

Mercedes R171 SLK 200 163HP M271.944 Kompressor Engine ECU A2711539779 Automatic

Product currently unavailable

Part no. 9387151

BMW 3 F30 Hybrid 330e B48X Positive Battery Lead Cable Starterunit 9387151

Product currently unavailable

Part no. 7805585-2

BMW 3 Series E92 E93 Diesel 330d M57N2 231HP ECU Kit DDE 7805585 + CAS3 + Key

Product currently unavailable

Part no. RHD-A1775409801

Mercedes W177 Door Wiring Harness Front Left N/S Passenger Side A1775409801

Product currently unavailable

Part no. 8587952-2

BMW F20 F30 F32 LCI 120d 320d 420d B47 ECU Engine Unit DDE 8587952 Automatic

Product currently unavailable

Part no. 7541335-6

BMW E60 525i M54 192HP Engine Control ECU Kit DME 7541335 CAS2 Key Automatic

Product currently unavailable

Part no. 3Q0907566D

Audi A3 8V Rear Blind Spot FAS Lane Assistance Control Unit 3Q0907566D

Product currently unavailable

Part no. 8T0907568B

Audi A4 B8 Blind Spot Radar Sensor Control Module Rear Left N/S 8T0907568B

Product currently unavailable

Part no. 3AA937087Q

Volkswagen VW Passat B7 Module BCM Body Control Unit Module ECU 3AA937087Q

Product currently unavailable

Part no. A2135404825

Mercedes W213 Front Door Wiring Harness Ambiente Driver's Side A2135404825

Product currently unavailable

Part no. 8806980

BMW i3 I01 LCI Door Wiring Cable Loom Harness Rear Left Right N/O/S 8806980

Product currently unavailable

Part no. A2315400282

Mercedes R231 Fuse Box Cover Control Unit Holder Bracket A2315400282

Product currently unavailable

Part no. 03G906016B

Volkswagen Golf 5 1.9 TDI 105HP BKC Engine Control Unit ECU Manual 03G906016B

Product currently unavailable

Part no. RHD-XRC8667

BMW F20 F21 Radio Navigation Head Unit Android CarPlay Display 10,25" XRC8667

Product currently unavailable

Part no. 5NA035284B

VW Volkswagen Golf SV Online Services Module Control Unit ECU 5NA035284B

Product currently unavailable

Part no. 8V51-15K600-EJ

Ford Fiesta Mk7 Body Control Module BCM Controller Unit ECU 8V51-15K600-EJ

Product currently unavailable

Part no. A2189065900

Headlight Module Mercedes ML W166 W246 C292 LED Front Right O/S 1305715307

Product currently unavailable

Part no. 8K0971029E

Audi A4 B8 Door Wiring Harness Loom Cable Front Driver's Side 8K0971029E

Product currently unavailable

Part no. rhd-A1635404032

Mercedes-Benz W163 OM612 270 CDI Engine Wiring Harness Loom Cable A1635404032

Product currently unavailable

Part no. RHD-1K2971111D

Audi A3 8P Power Steering Rack Wiring Harness Loom Cable 1K2971111D

Product currently unavailable

Part no. 1423642

BMW E39 E46 M52 Engine Automatic Gearbox Basic Control Unit Module EGS 1423642

Product currently unavailable

Part no. 4M0907594

Audi Q5 FY Top Sunroof Opener Control Module Unit ECU 4M0907594

Product currently unavailable

Part no. 7810000-1

BMW E81 E87 LCI E90 E91 120d 320d Diesel N47 ECU Kit DDE 7810000 CAS3 + 2 Keys

Product currently unavailable

Part no. DRIVETEC-AGM-92AH

DriveTec AGM Start-Stop 12V Accumulator Battery 92Ah 850A DA019

Product currently unavailable

Part no. 2K5907561C

Volkswagen Caddy Maxi 2k Front Distance Radar Sensor 2.0 TDI Diesel 2K5907561C

Product currently unavailable

Part no. 8610635-3

BMW F20 F30 F31 120i 320i N20 184HP Engine Control Unit ECU DME 8610635 Manual

Product currently unavailable

Part no. KT1T18D815DD

Ford Transit Connect Mk2 II Radio Player Stereo Head Unit KT1T18D815DD

Product currently unavailable

Part no. 8508169-1

BMW F01 F02 730Ld N57 245HP Engine Control ECU DDE Kit 8508169 Automatic

Product currently unavailable

Part no. 8585373

BMW F25 28dX N47N 180HP Engine ECU Control Unit DDE 8585373 Automatic USA Model

Product currently unavailable

Part no. 9352861-1

FEM Module BMW F20 F22 F30 F32 ECU Control Unit Fuse Box 9352861

Product currently unavailable

Part no. 9219987

Wiring Loom BMW F01 F07 F10 F11 Cable Seat Driver's Side Set 9219987

Product currently unavailable

Part no. 9270495-2

BMW X5 E70 X6 E71 F10 F11 F12 PDC Ultrasonic Parking Sensor SET X2 Black 9270495

Product currently unavailable

Part no. 5Q4959593C

Seat Leon Mk3 Front Door Module Control Unit Driver's Side 5Q4959593C

Product currently unavailable

Part no. A2135407525

Mercedes W213 Rear Door Wiring Harness Ambiente Left Right N/O/S A2135407525

Product currently unavailable

Part no. A6519007902-1

Mercedes W906 313CDi OM651.955 129HP Engine Unit ECU Kit A6519007902 Key Lock

Product currently unavailable

Part no. 7N0959792J

VW Volkswagen Sharan 7N Passenger's Side Door ECU Module Control Unit 7N0959792F

Product currently unavailable

Part no. 07357588720

Citroën Relay Mk3 Multimedia Sat Nav Radio DAB NAV Player Head Unit 07357588720

Product currently unavailable

Part no. 9313656

BMW 3 Series F30 F80 M3 Boot Trunk Lid Tailgate Wiring Loom Harness Cable

Product currently unavailable

Part no. A2128700194

Mercedes W204 W212 C218 Sound Audio Amplifier Harman Becker A2128700194

Product currently unavailable

Part no. 3449686

Mini Cooper R55 R56 R57 Passive Go Module Control Unit 3449686

Product currently unavailable

Part no. A2095404110

Mercedes CLK W209 Cabrio Door Wiring Front Left Right N/O/S Loom A2095404110

Product currently unavailable

Part no. 1K0937085

VW Golf MK6 Body Control Comfort Unit Module BCM 1K0937085

Product currently unavailable

Part no. 4KE035282M

Audi A6 C8 Telematics Bluetooth Control Module Unit ECU 4KE035282M

Product currently unavailable

Part no. 7L6035177E

Volkswagen Touareg 7L Display Screen Multimedia Navigation Unit 7L6035177E

Product currently unavailable

Part no. 9360501-1

BMW 2 X1 F45 F48 Mini F55 F56 Rear Electric Power Distribution Fuse Box 9360501

Product currently unavailable

Part no. A6079002200-4

Mercedes W176 A180 CDI OM607.951 BE 109HP Engine ECU Kit A6079002200 Lock + Key

Product currently unavailable

...

Showing 17623-17721 of 30469 products