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

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9226957

Product currently unavailable

Part no. A1679003118

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

Product currently unavailable

Part no. 9289582

BMW X1 E84 Display Screen Monitor On-Board CID TV Navigation System 8,8" 9289582

Product currently unavailable

Part no. 8517874-3

BMW F20 F21 116d N47N 116HP ECU Kit DDE 8517874 + Keys + FEM + Lock Manual

Product currently unavailable

Part no. RHD-5Q2971111S

Volkswagen Golf Mk7 Power Steering Rack Wiring Harness Loom Cable 5Q2971111S

Product currently unavailable

Part no. 6961218

BMW 5 X5 Series E39 E53 Radio Business CD Player 6961218

Product currently unavailable

Part no. 5Q4959593K

Seat Ateca Door Module Control Unit Front Driver's Side Door 5Q4959593K

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. 9675359580

Peugeot 3008 Bluetooth Module Multimedia Control Unit ECU 9675359580

Product currently unavailable

Part no. A2315401050

Mercedes SL63 R231 Roadster Fuse Box Passenger Footwell Fuse Box A2315401050

Product currently unavailable

Part no. 9278358

BMW F20 F21 F22 F87 Windscreen Camera Front Window KaFAS Camera 9278358

Product currently unavailable

Part no. RHD-4G8919604J-1

Audi A7 4G Head Up Display Screen Projector Dashboard Car System HUD 9442013

Product currently unavailable

Part no. 4L0035225

Audi Q7 4L Radio Aerial Antenna Amplifier AM/FM 4L0035225

Product currently unavailable

Part no. 8518424-2

BMW F20 F30 118d 318d N47N 143HP Engine ECU Kit DDE 8518424 + FEM + Key Manual

Product currently unavailable

Part no. 6954636

BMW 5 6 Series E60 E61 E63 CCC Onboard Monitor Wiring Cable Connection Line

Product currently unavailable

Part no. A9069006001-1

CD Radio Mercedes W639 W906 Audio Stereo Head Unit A9069006001

Product currently unavailable

Part no. A6461500678-1

Mercedes Vito W639 109CDI 646.980 95HP Engine ECU Kit A6461500678 Ignition + Key

Product currently unavailable

Part no. 6983842

BMW E60 E61 E63 E64 M-ASK M-Audio System Controller Navigation Radio 6983842

Product currently unavailable

Part no. A2229067503

Mercedes C257 Rear Left Exhaust Gas Line Actuator Mechanism Unit A2229067503

Product currently unavailable

Part no. 7795844-4

BMW 1 3 Series E87 E90 E91 118d 318d Engine ECU Kit DDE CAS2 Key 7795844

Product currently unavailable

Part no. 5A923E3

BMW F40 G20 G21 G30 G31 Hifi Audio Sound AMP Amplifier Module RAM DAB 5A923E3

Product currently unavailable

Part no. 6928990-4

Battery Cable BMW E63 E64 Positive Plus Pole Lead Terminal Wiring 6928990

Product currently unavailable

Part no. 8664661-2

BMW F22 F23 228i F30 328i N20 245HP Engine Control Unit ECU Kit DME 8664661

Product currently unavailable

Part no. MX63-14F152-AK

Range Rover Velar L560 Blind Spot Radar Sensor Module Unit MX63-14F152-AK

Product currently unavailable

Part no. 8654466

Mini F54 F56 F57 JCW B48 231HP Engine Control Unit ECU DME 8654466 Manual

Product currently unavailable

BMW G30 Engine Control Unit DME ECU + Key 2.0 B48X 251HP Automatic Set 9894915

-40%

Part no. 9894915-1

BMW G30 Engine Control Unit DME ECU + Key 2.0 B48X 251HP Automatic Set 9894915

Product currently unavailable

Part no. RHD-A2055452000

Mercedes W205 S205 Battery Power Connection Strap Bar A2055452000

Product currently unavailable

Part no. AVON 62Ah

AVON Battery Calcium Technology 62Ah 480A Accumulator

Product currently unavailable

Part no. 7810000-4

BMW E81 E87 LCI E90 E91 120d 320d Diesel N47 Engine Control Unit ECU DDE 7810000

Product currently unavailable

Part no. rhd-8784916

Head-Up Display BMW F90 M5 G30 Hud Project Dash Screen Control Module 8784916

Product currently unavailable

Part no. 8691830

BMW Mini One F54 F55 F56 B38 1.2 Petrol Basic Control Unit Engine DME 8691830

Product currently unavailable

Part no. 9224594

BMW E92 Footwell ECU Light Control Unit Module FRM3R PL2 Lear 9224594

Product currently unavailable

Part no. 5JA035577

Amplifier Seat Toledo Skoda Rapid Volkswagen Polo 6R Antenna Module 5JA035577

Product currently unavailable

Part no. 8517874-5

BMW F20 F21 118d N47N 143HP Engine ECU Kit DDE 8517874 + Key + FEM + Lock Manual

Product currently unavailable

Part no. 1J0919283A

Volkswagen New Beetle PDC Parking Assistant Module Control Unit 1J0919283A

Product currently unavailable

Part no. 6863391

Air Module BMW F20 F22 F30 F32 F36 Domain Control Unit Module ICM Plus 6863391

Product currently unavailable

Part no. 9807885980

Citroen Dispatch Jumpy III 9HM DV6UC 1.6 Diesel Engine Module ECU 9807885980

Product currently unavailable

Part no. 5C5919475A

Volkswagen New Beetle PDC Parking Assistant Module Control Unit 5C5919475A

Product currently unavailable

Part no. AC8004

Planet Audio AC800.4 4 Channel Car Amplifier Anarchy Model 800 Watts

Product currently unavailable

Part no. 252300973R

Renault Trafic III Vauxhall Vivaro B Relay 4-Pin Blue Electrical Unit 252300973R

Product currently unavailable

Part no. 7990758-FER

BMW F33 PDC Ultrasonic Parking Sensor Set Ferrari Red - U90 7990758

Product currently unavailable

Part no. RHD-HK72-14A614-AAD

Land Rover Discovery Sport L550 Steering Racak Wiring Loom HK72-14A614-AAD

Product currently unavailable

Part no. A1669007809

Mercedes GLE W166 Rear Door Wiring Control Module Left N/S Unit ECU A1669007809

Product currently unavailable

Part no. 8R0909144L

Audi A6 C7 Steering Rack Control Module Ecu 2.0 TDI Diesel 8R0909144Q C91893100

Product currently unavailable

Part no. 4L0910110B

Audi Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B

Product currently unavailable

Part no. 6947416

BMW 7 Series E65 E66 Sensor Front Right Door Airbag O/S 6947416

Product currently unavailable

Part no. A2139004316

Head Unit Mercedes W213 C238 Radio Navigation Media Player Unit A2139004316

Product currently unavailable

Part no. 7574365-1

Alternator Generator Mini Cooper R55 R56 R57 R57 R58 LCI Petrol 7574365

Product currently unavailable

Part no. LION AGM 95Ah Accumulator-1

LION AGM Start Stop Plus Accumulator Battery 95Ah 850A 12V

Product currently unavailable

Part no. A6519007103-1

Mercedes Sprinter W907 311 CDI 651.958 114HP ECU Kit A6519007103 Key BCM Lock

Product currently unavailable

Part no. A1669055901

Mercedes C292 Negative Cable Battery Terminal Sensor A1669055901

Product currently unavailable

Part no. 8Y0035282B

Audi A3 S3 RS3 8Y Online Service Control Module Unit 8Y0035282B

Product currently unavailable

Part no. A0009056121

Mercedes W118 W177 W247 Front Radar Distance Control Unit Module A0009056121

Product currently unavailable

Part no. 9133776

BMW E87 E90 CCC CD Professional Navigation System Controller 9133776

Product currently unavailable

Part no. 9824610

BMW G20 G21 Body Control Module Domain Controller Unit BDC ECU 8725622

Product currently unavailable

Part no. 7634297-1

BMW F20 F30 116i 316i N13 Engine Control Unit ECU Kit DME 7634297 FEM Key Lock

Product currently unavailable

Part no. 7527610-16

Mini Cooper R50 W10 116HP Petrol Engine Control Unit ECU DME 7527610 Manual

Product currently unavailable

Part no. 7405634

BMW G20 Trunk Boot Lid Tailgate Pushbutton Lock System Trim Cover Panel 7405634

Product currently unavailable

Part no. 3456034-1

Mini Cooper R57 LCI ECU Footwell Light Module FRM3R LOW EKS Lear 3456034

Product currently unavailable

Part no. A1705450503

Mercedes SLK R170 Fuse Relay Box Cover Trim Panel Lid Housing A1705450503

Product currently unavailable

Part no. A2098200726

Mercedes CLK S Class C209 W209 W220 Rain Light Sensor Module Unit A2098200726

Product currently unavailable

Part no. RHD-8R2035670H

Audi A4 RS4 B8 Music Stereo Radio CD Player Head Unit 8R2035670H

Product currently unavailable

Part no. A0015450016

Mercedes W221 S65 AMG Automatic Gearbox Transmission Control Unit A0015450016

Product currently unavailable

Part no. A1729002609-1

Mercedes SLK R172 Rear Fuse Box SAM Relay Control Unit Module A1729002609

Product currently unavailable

Part no. LR033063

Range Rover Evoque L538 Battery Positive Wiring Harness 2.2 TDCI BJ32-14A280-AD

Product currently unavailable

Part no. 7565300-19

BMW E87 E90 E91 120i 320i N46 150HP Engine ECU Kit DME 7565300 CAS3 Key Manual

Product currently unavailable

Part no. 9130203

BMW 7 Series E65 Airbag ECU Control Unit Gateway Module 9130203

Product currently unavailable

Part no. 9269013

BMW X1 E84 On-board Central Information Display Screen Monitor 6,5" 9224966

Product currently unavailable

Part no. 4F0907279B

Audi A6 C6 Body Control Comfort Unit Module BCM Convenience Unit 4F0907279B

Product currently unavailable

Part no. 068911024H

Audi A4 B6 Engine Starter Motor Actuator Bosch 068911024H

Product currently unavailable

Part no. 4L0919283C

Audi A6 C6 Parking Control Unit ECU Module Sensor PDC 4L0919283C

Product currently unavailable

Part no. A2539006106

Mercedes GLC W253 Multimedia CD Player Audio Stereo Radio Head Unit A2539006106

Product currently unavailable

Part no. A2129006417

Mercedes W207 W212 Head Unit CD Player Radio Navigation Controller A2129006417

Product currently unavailable

Part no. 7L0927841

VW Volkswagen Touareg 7L Mk1 ESP Relay Unit Grey 481 7L0927841

Product currently unavailable

Part no. 2198947-1

Ford Fiesta Mk8 Engine Alternator Generator 1.5 EcoBoost 150A JX6T-10300-FA

Product currently unavailable

Part no. 9226331-2

BMW X1 E84 ECU Body Control Module Unit H2 PL2RR JBBFE IIIR 9226331

Product currently unavailable

Part no. 7533282

BMW X3 Z4 E83 E85 E86 Fuse Box Cover Power Distribution Engine Bay 7533282

Product currently unavailable

Part no. A2129006624-1

Mercedes W204 Front Relay Fuse Box Control Unit Module SAM A2129006624

Product currently unavailable

Part no. 5A16A53

BMW G20 G28 F93 Satelite Navigation Head Unit Multimedia Control Radio 5A16A53

Product currently unavailable

Part no. 6836752

Telematics Module BMW X3 F25 F30 LCI Telephone Control Unit ATM ECE 4G 6836752

Product currently unavailable

Part no. rhd-A6395400424

Mercedes Vito Viano W639 Battery Box Tray Housing A6395400424

Product currently unavailable

Part no. STARLINE-70AH

Starline 12V Accumulator Battery 70Ah 620A

Product currently unavailable

Part no. 6966548

BMW 5 Series E60 E61 Front Door Wiring Loom Harness Driver Side 6966546

Product currently unavailable

Part no. 3456860

Mini Cooper R58 R59 Fuse Box Fusebox Relay Unit Module Control Unit 3456860

Product currently unavailable

Part no. A2189000508

Mercedes-Benz W207 W212 Audio Radio DVD Navigation Control Unit A2189000508

Product currently unavailable

Part no. A1669007409

Mercedes GLE W166 Front Door Wiring Control Module Left N/S Unit ECU A1669007409

Product currently unavailable

Part no. A1635457432

Mercedes-Benz ML W163 Parktronic Parking Control Unit Module A1635457432

Product currently unavailable

Part no. 9287252

BMW X5 Series E70 Footwell Light Control Module Unit Lear FRM3R VDM 9287252

Product currently unavailable

Part no. 9223385

BMW F01 F02 F04 F07 F10 F11 IBS Negative Battery Cable 9223385

Product currently unavailable

Part no. 9353417

Junction Box BMW F01 LCI PL6 JBBFE III V6 Body Control Module 9353417

Product currently unavailable

Part no. A6429003401-1

Mercedes W207 A207 E350 BlueTec OM642.838 Engine ECU KIT A6429003401 Key Lock

Product currently unavailable

Part no. A2129003908

Mercedes W212 Audio 20 CD Player Audio Stereo Radio Head Unit A2129003908

Product currently unavailable

Part no. 5F0919603A

Seat Leon Mk3 Head Unit Audio Radio Display Sat Nav Navigation 5F0919603A

Product currently unavailable

Part no. 7546990-4

BMW E60 E60 E90 E91 630i N52 258HP Engine Control ECU Kit DME 7546990 Automatic

Product currently unavailable

Part no. 04L907309P-1

Seat Ateca 2.0 TDI DFFA 150HP Engine ECU Kit BCM Key 04L907309P Automatic

Product currently unavailable

Part no. A4539018900

Smart ForTwo C453 Air Module Impact SRS Control Module ECU A4539018900

Product currently unavailable

Part no. 7640755-3

BMW F20 F21 F30 116i 316i N13 136HP ECU Kit DME 7640755 Key + FEM Manual

Product currently unavailable

Part no. A2059007721

Head Unit Mercedes W205 GLC X253 COMAND Multimedia Stereo Unit A2059007721

Product currently unavailable

Part no. 93857713

Vauxhall Vivaro B Renault Trafic Rear Left N/S Lamp Frame Trim Cover Silver

Product currently unavailable

...

Showing 21187-21285 of 30469 products