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 X5 E53 E39 Light Check Control Module LCM 6942691

Product currently unavailable

Part no. 8617050-1

Mini R56 LCI One 55kW N16 1.6 75HP Engine ECU Kit DME 8617050 CAS 3 + Key

Product currently unavailable

Part no. 7501690

BMW 3 5 7 X5 Series E38 E39 E46 E53 Generator Alternator Bosch 120A 7501690

Product currently unavailable

Part no. 7607975

Engine Harness BMW F20 F21 F30 F31 Petrol N13 Sensor Module 1 Wiring 7607975

Product currently unavailable

Part no. A1635450205

Mercedes W163 Fuse Main Box Relay Comfort Control Module Unit CMM A1635450205

Product currently unavailable

Part no. CJ32-10E889-AG

Range Rover Evoque L538 Onboard Multimedia Display Screen CJ32-10E889-AG

Product currently unavailable

Part no. 059903019H

Audi A8 D4 Alternator Generator Electrical Unit 3.0 TDI Diesel Engine 059903019H

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. 8708257-1

Head Unit BMW F20 F21 F22 F30 F31 LCI Sat Nav Radio Media Navigation 8708257

Product currently unavailable

Part no. A2129007124

Mercedes W212 Fuse Box SAM Control Module Unit ECU A2129007124

Product currently unavailable

Part no. 6G9N-19G229-BK

Ford Mondeo Mk4 Alarm System Siren 2.2 TDCi KNBA 1698716 Manual 6G9N-19G229-BK

Product currently unavailable

Part no. 9119446-1

BMW E81 X1 E84 E87 E90 E91 E92 Front Fuse Box Power Distribution Unit 9119446

Product currently unavailable

Part no. 7H0937049AA

VW Volkswagen Transporter T5 Comfort Convenience Body Module BCM 7H0937049AA

Product currently unavailable

Part no. 7809000

BMW E60 E87 E90 120d 320d 520d N47 ECU Control Unit Module DDE 7809000 Manual

Product currently unavailable

Audi A6 C6 6-Disc CD Changer Magazine Head Unit MMI 6946989

-5%

Part no. 4E0910110L

Audi A6 C6 6-Disc CD Changer Magazine Head Unit MMI 6946989

Product currently unavailable

Part no. 565035874

Skoda Karoq NU7 Radio Sat Nav Multimedia MMI Head Unit 565035874

Product currently unavailable

Part no. CPLA-10E889-BK

Land Rover Range Rover L405 Dashboard Sat Nav Display Screen CPLA-10E889-BK

Product currently unavailable

Part no. 9187108-1

BMW E81 E82 E87 E88 E89 E90 E91 E92 Radio Professional CD 9187108

Product currently unavailable

Part no. 8K0959760

Audi S4 B8 Front Seat Control Unit Module Switch Left N/S ECU 8K0959760

Product currently unavailable

Part no. 6962720

BMW 7 Series E65 Light Control Module Unit Lear LM E6X DYN. LWR (LCM) 6962720

Product currently unavailable

Part no. 8585225-1

Mini F55 F56 Cooper SD B47 Diesel Engine ECU Kit DDE 8585225 BDC Key Manual

Product currently unavailable

Part no. 1K0937084F

VW Volkswagen Golf MK6 Body Control Comfort Unit Module BCM 1K0937084F

Product currently unavailable

Part no. 7807530-1

BMW E60 E87 E90 LCI 120d 320d 520d N47 Engine ECU Kit DDE 7807530 CAS 3 + 2 Keys

Product currently unavailable

Part no. 9298947-2

BMW Z4 E89 Body Control Module ECU Junction Box PL2RR JBBFE 9298947

Product currently unavailable

Part no. A2479001506

Mercedes C118 W177 W247 Body Control Module BCM V2 A2479001506

Product currently unavailable

Part no. 284B12763R

Smart ForTwo C453 Vauxhall Vivaro Mk2 BCM Body Control Module Unit 284B12763R

Product currently unavailable

Mini F55 F56 F60 LCI Navigation Touch Screen 8.8" Display Nav Head Unit 9824925

-15%

Part no. 9824925

Mini F55 F56 F60 LCI Navigation Touch Screen 8.8" Display Nav Head Unit 9824925

Product currently unavailable

Part no. PARROT-MICROPHONE

Parrot Microphone Hands-Free System Mic With Mounting Bracket Support

Product currently unavailable

Part no. 9139895

BMW F20 F21 F30 F31 Mini F56 Navigation Head Unit Basic Media Player 9139895

Product currently unavailable

Part no. 8518568

BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP Engine Control ECU DDE 8518568

Product currently unavailable

Part no. 7565300-6

BMW E87 E90 N46 120i 320i 150HP Engine Unit ECU kit DME 7565300 CAS3 Key Manual

Product currently unavailable

Part no. 4E0910148C

Audi A8 4E S8 D3 TV Tuner DVB Receiver Hybrid Digital / Analog 4E0910148C

Product currently unavailable

Part no. 9151979-1

BMW E60 E90 Dashboard Dash Onboard Display Monitor Screen Display 8.8" CCC

Product currently unavailable

Part no. 3415007

BMW X3 Series E83 Boardmonitor Central Information Display Screen 6,5" 3415007

Product currently unavailable

Part no. 8P0907115H

Audi S3 8P 2.0 TFSI BHZ 265HP Engine Control Module ECU 8P0907115H Manual

Product currently unavailable

Part no. 6941634

Headlight Ballast BMW E60 E61 E90 E91 Xenon Adaptive Control Module 6941634

Product currently unavailable

Part no. 04L907445E-1

Audi Q2 GA Engine Control Unit ECU 115HP 1.6 TDI Diesel DDYA 04L907445E Manual

Product currently unavailable

Part no. 6943838

BMW X5 E70 CAS3 Control Unit Key Reading Module 6943838

Product currently unavailable

Part no. A0009062302-1

Starter Motor Mercedes W639 W906 Diesel Engine A0009062302 0986024530

Product currently unavailable

Part no. 9268802

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

Product currently unavailable

Part no. A6461505091-2

Mercedes W203 C220 CDI 150HP 646.963 Engine Control ECU Kit A6461505091 Automat

Product currently unavailable

Part no. 7M5T-14A073-FG

Ford Kuga C394 BCM Body Control Module Unit Comfort Fuse Box 7M5T-14A073-FG

Product currently unavailable

Part no. 1K0035186AB

VW Volkswagen Passat B7 Radio CD Player Head Unit DAB Stereo 1K0035186AB

Product currently unavailable

Part no. A0002703252

Mercedes W204 W211 Gearbox Control Unit Module Automatic 722.9 A0002703252

Product currently unavailable

Part no. A2711534591-1

Mercedes W203 C180 Kompressor M271 Engine Module ECU Kit A2711534591 Key Lock

Product currently unavailable

Part no. 8R0959655G

Audi Q5 8R Air Module Control Unit SRS System ECU 8R0959655G

Product currently unavailable

Part no. P8200943317

Renault Trafic II Control Unit Body Control Module BCM ECU P8200943317

Product currently unavailable

Part no. 1439674

BMW X5 E53 Base B Positive Battery Terminal Cable Cover Compartment

Product currently unavailable

Part no. 7P0927601

Oil Pump Control Audi Q7 4L Volkswagen Touareg 7P Module Unit ECU 7P0927601

Product currently unavailable

Part no. 281155093R

Radio MP3 Player Renault Trafic Vauxhall Vivaro Head Unit Bluetooth 281155093R

Product currently unavailable

Part no. 9366166

BMW F10 F11 F12 F13 Audio Amplifier Harman Becker Top HIFI System Unit 9366166

Product currently unavailable

BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529

-15%

Part no. 7542529-1

BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529

Product currently unavailable

Part no. 074906018BD

VW Volkswagen LT 35 BBF 95HP Engine Control Unit Module ECU 074906018BD Manual

Product currently unavailable

Part no. 8519668

BMW E90 E91 LCI 320d N47N 184HP Engine Control Unit ECU DDE 8519668 Manual

Product currently unavailable

Part no. A2129006012

Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2129006012

Product currently unavailable

Part no. A2095450701

Sam Unit Mercedes S203 W203 Rear Module Fuse Box A2095450701

Product currently unavailable

Part no. 7591532

BMW E82 E90 E91 E92 LCI Alternator Generator 170A 12V 7591532

Product currently unavailable

Part no. A4479002405

Head Unit Mercedes W447 Radio Navigation Audio 15 Control Unit A4479002405

Product currently unavailable

Part no. A6511504133

Mercedes W204 W212 Engine Wiring Diesel Harness Loom Cable E250 CDI A6511504633

Product currently unavailable

BMW F10 F30 F32 LCI 335dX 435dX 535dX N57Z 313HP Control Unit ECU DME 8586536

-40%

Part no. 8586536

BMW F10 F30 F32 LCI 335dX 435dX 535dX N57Z 313HP Control Unit ECU DME 8586536

Product currently unavailable

Part no. 1756803

Ford Ranger Explorer Starter Motor Engine Actuator Diesel Mitsubishi M002T87271

Product currently unavailable

Part no. 1025-03-1

BMW F32 GPS Navigation Display Screen Android Auto CarPlay 10,25"

Product currently unavailable

Part no. 8510221-6

BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key

Product currently unavailable

Part no. 4N0903028H

Audi A6 C8 Water Cooled Starter Alternator 48V 250A 3.0 TDI DDVB 4N0903028H

Product currently unavailable

Part no. 3456625

Mini R56 MMI Multimedia Switch Button Panel Radio Reader Boost CD Player 3456625

Product currently unavailable

Part no. 4E0955559C-1

Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 4E0955559C

Product currently unavailable

Radio Player BMW F20 F21 F22 F30 F31 CD Bluetooth Head Unit Control 9310461

-5%

Part no. 9310461

Radio Player BMW F20 F21 F22 F30 F31 CD Bluetooth Head Unit Control 9310461

Product currently unavailable

Part no. BM5T-18B955-CG

Ford Focus Mk3 Radio Display Screen Stereo Head Unit BM5T-18B955-CG

Product currently unavailable

Part no. 9270393-1

Dashboard Monitor BMW F30 F31 Display Central Information Screen 6,5" 9270393

Product currently unavailable

Part no. 9286479

BMW F10 F11 LCI Front Bumper PDC Sensors Loom Cables Wiring Set 9286479

Product currently unavailable

Part no. 6973117

BMW 1 3 Series E81 E87 E90 E91 E92 E93 Parking Control Module Unit PDC 6973117

Product currently unavailable

Part no. 8973583764

Engine Control Unit Opel Combo 2.0 DTI Diesel Control Module ECU ECM 8973583764

Product currently unavailable

Part no. 6977766

BMW X5 E53 6-disc CD Changer Control Unit Module With Magazine 6977766

Product currently unavailable

Part no. 9210508

BMW E81 E82 E84 E87 E89 E90 E91 E92 Radio Business CD 9210508

Product currently unavailable

Part no. YLE500180

Land Rover Range Rover L322 3.0d M57 Engine Alternator Generator YLE500180

Product currently unavailable

Part no. 9227053

BMW X5 E70 X6 E71 Comfort Access Control Module Unit CAS ECU 9227053

Product currently unavailable

Part no. CPLA-19H422-AC

Range Rover L405 Front Bumper 360 Camera Control Unit CPLA-19H422-AC

Product currently unavailable

Part no. 9141682-2

BMW E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9141682

Product currently unavailable

Part no. 8581788

BMW F45 X1 F48 Mini Cooper F55 F56 F60 Diesel Engine Starter Motor 8581788

Product currently unavailable

Part no. A2115456532

SAM Module Mercedes W211 C219 Front Body Comfort Control Unit ECU A2115456532

Product currently unavailable

Part no. 7599881-5

BMW E81 E87 LCI 116i 2.0 Engine Petrol N43 ECU Kit DME 7599881 CAS3 Key Manual

Product currently unavailable

Part no. 7561834-10

BMW X3 E83 2.0i N46 ECU Engine Control Unit KIT DME 7561834 EWS Key Manual

Product currently unavailable

Part no. 3413934

BMW X3 Series E83 Rear Bumper Wiring Loom PDC Harness Towing Hitch Hook

Product currently unavailable

Part no. A2129008816

Mercedes X218 Radio Comand Navigation Seat Control Unit Module A2129008816

Product currently unavailable

Part no. 4E0971225F

Audi A8 D3 Battery Starter Alternator Positive Cable Wire Looom 4E0971225F

Product currently unavailable

Part no. FK72-10E898-AB

Land Rover Discovery L550 Sat Nav Memory Card Europe & Russia FK72-10E898-AG

Product currently unavailable

Part no. 3456586

Mini Countryman R60 Light Module Footwell Module PL3 FRM3R Lear ECU 3456586

Product currently unavailable

Part no. A1765401201

Mercedes W176 Multimedia Box Wiring Loom Electrical Harness A1765401201

Product currently unavailable

Part no. 6971958

BMW 3 Series E90 ECU Body Control Module H1 PL2 JBBFE Junction Box 6971958

Product currently unavailable

Part no. 8475350-1

BMW F20 F21 LCI 116d Diesel B37 B37D15A 116HP Engine ECU DDE 8475350 Manual

Product currently unavailable

BMW E90 E91 LCI 320d N47N 163HP Engine Unit ECU Kit DDE 8506566 CAS3 Key Manual

-5%

Part no. 8506566-6

BMW E90 E91 LCI 320d N47N 163HP Engine Unit ECU Kit DDE 8506566 CAS3 Key Manual

Product currently unavailable

Part no. 7640004-1

Mini Cooper R55 R56 Petrol N12 1.6 ECU Kit DME CAS3 + Key 7640004 Manual

Product currently unavailable

Part no. 8657337

Starter Motor BMW F90 M5 G11 G30 Petrol Engine Starter Actuator DENSO 8657337

Product currently unavailable

Part no. 9348362

BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9348362

Product currently unavailable

Part no. 7580279-7

BMW E87 LCI E90 118i 318i N43 143HP ECU Engine Control Unit DME 7580279 Manual

Product currently unavailable

Part no. A4539067500

Smart C453 Engine Starter Motor A4539067500

Product currently unavailable

Part no. A2139006633

Mercedes X253 Central Control Unit Electronic Module A2139006633

Product currently unavailable

Part no. 2149504

Ford Tourneo Custom PDC Parking Sensor Wire Harness Front Bumper GK2T-15K867-DC

Product currently unavailable

Part no. 056800-2120

Ford Ranger Mk4 Relay Control Unit 12V Green Z5A1 056800-2120

Product currently unavailable

...

Showing 18316-18414 of 21307 products