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

Mercedes W204 C220 CDI 170HP OM646.811 Engine ECU Kit A6461503734 Automatic

Product currently unavailable

Part no. A9069006001

CD Radio Mercedes W639 W906 Audio Stereo Head Unit A9069006001

Product currently unavailable

Part no. A1695408033

Mercedes-Benz A W169 Front Driver's Side Door Wiring Loom Harness A1695408033

Product currently unavailable

Part no. 6970894

BMW 7 Series E65 E66 E67 Sensor B-Pillar Airbag Right O/S 6970894

Product currently unavailable

Part no. 4G5971085AE

Audi A6 C7 Rear Bumper PDC Parking Sensor Wiring Loom Harness 4G5971085AE

Product currently unavailable

Part no. A1645400072

Mercedes ML W164 Front Fuse Box SAM Relay Control Unit Module A1645400072

Product currently unavailable

Part no. 7N0907530BE

Volkswagen Tiguan 5N Gateway Control Module ECU 7N0907530BE

Product currently unavailable

Part no. 1Q0959255B

VW Volkswagen Eos 1F Convertible Hydraulic Roof ECU Control Module 1Q0959255B

Product currently unavailable

Part no. A2208274642-1

CD Changer Mercedes W203 W209 W220 6 Disc Player With Magazine A2208274642

Product currently unavailable

Part no. A1699002500

Mercedes W169 W245 W639 W906 Head Unit Radio Media Player Navigation A1699002500

Product currently unavailable

Part no. 9342033-1

BMW F10 F20 F30 Head Unit Media Navigation Headunit Player 9342033

Product currently unavailable

Part no. 6986980

BMW Z4 Series E85 Cable Loom Driver's Door Wiring Harness 6986980 6986976

Product currently unavailable

Part no. 1K0971920

Audi A3 8P Battery Clamp Positive Plus Pole Cable Protection Panel 1K0971920

Product currently unavailable

Part no. 7388490-1

BMW F31 Touring Body Control Unit Module HKFM 7388490 0066245503 F005V01610

Product currently unavailable

Part no. 5K0937085AG

VW Volkswagen Caddy Maxi 2k Comfort Control Module BCM 5K0937085AG

Product currently unavailable

Part no. 9663205580

Peugeot 207 Display Screen Dashboard Multifunction Monitor Unit 9663205580

Product currently unavailable

Part no. 4L0910553B

Audi Q7 4L Air Suspension Control Module ECU 4L0910553B

Product currently unavailable

BMW 1 3 Series F20 F21 F30 LCI Headlight Control Unit Module FLE2 7457871

-15%

Part no. 7457871

BMW 1 3 Series F20 F21 F30 LCI Headlight Control Unit Module FLE2 7457871

Product currently unavailable

Part no. 2687921-SBG

BMW 5 Series E60 PDC Ultrasonic Parking Sensor Silbergrau Silver Grey A08

Product currently unavailable

Mercedes W204 W212 Door Module Rear Left N/S Control Unit Module A2128203985

-5%

Part no. A2128203985

Mercedes W204 W212 Door Module Rear Left N/S Control Unit Module A2128203985

Product currently unavailable

Part no. 4F0910289N

Comfort Module Audi A6 S6 RS6 C6 4F Convienience Unit ECU 4F0910289N

Product currently unavailable

Part no. 8E0959433CH

Audi A4 B7 Comfort Convience Module Control Unit 8E0959433CH

Product currently unavailable

Part no. 8K0907063AH

Audi A4 B8 Body Control Comfort Unit Module BCM ECU 8K0907063AH

Product currently unavailable

Part no. 9162982

BMW E81 E87 E90 E91 Hands Free Electronics Charging MULF2 9162982

Product currently unavailable

Part no. 6906609

Fuse Box Control BMW E87 E90 E91 E92 E93 Front Power Distribution 6906609

Product currently unavailable

Part no. MK2T-18D804-HF

Ford Transit Custom Mk8 Radio Stereo MMI Multimedia Head Unit MK2T-18D804-HF

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. A2711535391-3

Mercedes R171 SLK 200K 163HP 271.944 Engine ECU Kit A2711535391 Keys Lock

Product currently unavailable

Part no. 9199850

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

Product currently unavailable

Part no. BK3T-11000-CB

Starter Ford Transit MK8 Custom V363 2,2 Tdci Starter Motor BK3T-11000-CB

Product currently unavailable

Part no. 6970680

IBS Cable BMW E60 Negative Battery Lead Wiring Harness Control Unit 6970680

Product currently unavailable

Part no. 8654280

BMW X3 G01 X4 G02 G20 G21 G22 G26 G28 G30 Alternator Generator 14V 150A 8654280

Product currently unavailable

Part no. A2115459301-1

Mercedes W211 W219 Fuse Box Rear SAM Module Electrical Fuse Unit A2115459301

Product currently unavailable

Part no. A1729015805

Mercedes SLK R172 Airbag Module SRS Control Unit ECU A1729015805

Product currently unavailable

Part no. 8671505

BMW F98 Engine Starter Motor 8671505

Product currently unavailable

Part no. 6906613

BMW E87 E90 E91 Power Distribution Fuse Box Front 6906613

Product currently unavailable

Part no. 1393415-2

BMW E90 E91 F10 Mini R50 R52 Change Over Contact Relay Grey 5 Pins Set 1393415

Product currently unavailable

Part no. A2711532291

Mercedes W203 C180 Kompressor M271.946 Engine ECU A2711532291 Automatic

Product currently unavailable

Part no. A6519000700

Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519000700 Manual

Product currently unavailable

Part no. 5A45CD4

BMW U06 X1 U11 Battery Cable Plus Positive Underfloor 5A45CD4

Product currently unavailable

Part no. 7571510-1

BMW Z4 Series E85 Roadster 2.5i N52 177HP ECU Kit DME 7571510 EWS + Key Manual

Product currently unavailable

Part no. 7803373-7

BMW X3 E83 LCI M47N2 2.0d 150HP ECU Engine Control Unit DDE 7803373 Manual

Product currently unavailable

Part no. 9189850

BMW Z4 Series E89 Convertible Positive Battery Cable Wiring Lead 9189850

Product currently unavailable

Part no. 8E0057186DX

Audi A4 B7 Radio Player Head Unit CD Stereo Concert 8E0057186DX

Product currently unavailable

Part no. 3T1T-14301-AF

Ford Transit Connect Negative Battery Terminal Cable Wiring 3T1T-14301-AF

Product currently unavailable

Part no. 4KE907468F

Audi Q7 4M Gateway Interface Control Unit Module ECU 4KE907468F

Product currently unavailable

Part no. 7P6035670B

VW Volkswagen Touareg 7P CD Radio Stereo Head Unit Panel 7P6035670B

Product currently unavailable

Part no. A2218705089

Mercedes W221 Audio Amplifier Sound Harman Becker Control Unit A2218705089

Product currently unavailable

Part no. 4E0910732A

Audi A8 4E S8 D3 Head Unit Interface Control Module 4E0910732A

Product currently unavailable

Part no. 7796819-1

Engine Wiring BMW X5 E53 3.0d M57N Loom Cable Harness Injector Module 7796819

Product currently unavailable

Part no. A2129006709-1

Mercedes C207 W212 Head Unit High Line Radio Sat Nav DVD Bluetooth A2129006709

Product currently unavailable

Part no. 55246588

Fiat Doblo 1.3 Diesel Multijet 90HP Engine Control Unit Module ECU 55246588

Product currently unavailable

Part no. 7797661-3

BMW X3 X5 E53 E83 M57N2 Alternator Generator Diesel Power 150A 7797661

Product currently unavailable

Part no. 3455440

MINI Cooper One R56 PL3 SPEG H5 Fuse Distribution Box 3455440

Product currently unavailable

Part no. 5E0035842A

Skoda Octavia 5E MMI Multimedia Interface Unit Module Control ECU 5E0035842A

Product currently unavailable

Part no. A1699000300-1

Door Module Mercedes W169 W245 Front Left N/S Control Unit A1699000300

Product currently unavailable

Part no. 1K0035186AD

VW Volkswagen Golf 5 Radio CD Player Stereo Head Unit 1K0035186AD

Product currently unavailable

Part no. 6801299

BMW F06 F12 F13 Central Information Display Screen Monitor 10" 6801299

Product currently unavailable

Part no. A1645450216

Mercedes ML W164 PDC Module Parking Distance Control Unit Sensor A1645450216

Product currently unavailable

Part no. A1265420332

Relay Mercedes W124 E280 Fuse Box Light Control Relay A1265420332

Product currently unavailable

Part no. AH42-13N490-AC

Range Rover L322 Tow Bar Electrics Towing Wire Wiring Harness AH42-13N490-AC

Product currently unavailable

Part no. 8K0907064FF

Audi A4 S4 B8 Body Control Comfort Unit Module BCM2 Unit ECU 8K0907064FF

Product currently unavailable

Part no. 9294309-1

BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9294309

Product currently unavailable

Part no. A6519003203-3

Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU Kit A6519003203 Manual

Product currently unavailable

Part no. 9207846

BMW X5 Series E70 Driver Side Front Right O/S Door Cable Harness Wiring 9207841

Product currently unavailable

Part no. 6M5Y-12A650-AF

Ford Focus St Mk2 Engine Control ECU 226HP Petrol Manual Gearbox 6M5Y-12A650-AF

Product currently unavailable

Part no. 6922785

BMW 5 6 7 E60 E61 E63 E64 E65 PDC Parking Control Module Unit ECU 6922785

Product currently unavailable

Part no. 1393415-3

BMW E90 E91 F10 Mini R50 R52 Change Over Contact Relay Grey 5 Pins Set 1393415

Product currently unavailable

Part no. A2218208789

Mercedes W221 Audio Sound Speakers Amplifier Control Unit ECU A2219008103

Product currently unavailable

Part no. 6941592

BMW 5 E60 Light Control Module Unit Lear LME6X MAN LWR LCM Delphi 6941592

Product currently unavailable

Part no. 6938975-1

CD Changer BMW E60 E61 E63 E64 Compact 6-disc Magazine 6938975

Product currently unavailable

Part no. A6681540102

Mercedes W168 OM668 Diesel Alternator Generator A6681540102

Product currently unavailable

Part no. 9808674780

Citroen Berlingo ECU Bracket Control Unit Module Holder Mount 9808674780

Product currently unavailable

Part no. 7N0907530S

VW Volkswagen Sharan 7N Gateway Control Unit Module ECU 7N0907530S

Product currently unavailable

Part no. A2118704726

Seat Module Mercedes W203 CLK W209 W211 Front Memory Control Unit A2118704726

Product currently unavailable

Part no. 7524843

BMW E81 E82 E83 E84 E85 E87 E90 Petrol Denso Starter Motor 7524843

Product currently unavailable

Part no. 6927264

BMW E60 E61 E65 E66 Seat Control Unit Module ECU Sensor 6927264

Product currently unavailable

Part no. YQE000250

Land Rover Discovery 2 Main Interior Fusebox Fuse Box Wiring YQE000250

Product currently unavailable

Part no. 2354709-1

BMW 3 5 7 Series E30 E34 E36 E38 E46 Petrol Engine Starter Motor 2354709

Product currently unavailable

Part no. 7932682

BMW F10 F11 X3 F25 F30 LCI Mini F60 Tailgate Smart Opener Control Module 7932682

Product currently unavailable

Part no. 89500248

Audi A5 8T Headlight Lightning Control Module LCM Unit ECU 89500248

Product currently unavailable

Part no. A2129004201

Mercedes S212 Estate Fuse Box Rear SAM Module Relay Control Unit A2129004201

Product currently unavailable

Part no. 8200404459-1

Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Generator 8200404459

Product currently unavailable

Part no. 9294196

BMW X3 F25 Sat Navi Radio CD Player Head Unit 9294196

Product currently unavailable

Part no. 1508931-1

Mini Cooper S R53 Positive Battery Cable Plus Pole Wiring Loom Harness 1508931

Product currently unavailable

Part no. A2711500391-9

Mercedes R172 BlueEFFICIENCY 271.861 184HP Engine ECU Kit A2711500391 Key + Lock

Product currently unavailable

Part no. 7L6035730C

Volkswagen Touareg 7L Bluetooth Telephone Module Control Unit 7L6035730C

Product currently unavailable

Part no. 8W1907063CC

Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W1907063CC

Product currently unavailable

Part no. 5Q4959592N

VW Volkswagen T-ROC AV11 Front Door Control Module ECU Passenger Side 5Q4959592N

Product currently unavailable

Part no. A2049069701-2

Mercedes W204 Radio Stereo CD Player Audio Sat Nav Head Unit A2049069701

Product currently unavailable

Part no. 81A035466B

Audi A3 8V Bang Olufsen Audio AMP Amplifier Module Control Unit ECU 81A035466B

Product currently unavailable

Part no. 059911024J-1

Volkswagen Touareg 7L 3.0 TDI Diesel Engine Starter Motor 059911024J

Product currently unavailable

Part no. 04C903021A

Volkswagen Golf Sportsvan 1.5 TSI Alternator Valeo 14V 140A 04C903021A

Product currently unavailable

Part no. 9257160

Bluetooth Combox BMW E81 E87 E90 E91 LCI Telematics Module 9257160

Product currently unavailable

Part no. A9069001002

Mercedes Sprinter W906 Parking Control Unit Module Sensor PDC A9069001002

Product currently unavailable

Part no. A2018210047

Relay Mercedes W124 Indicators Wipers Hazard Lights Relay A2018210047

Product currently unavailable

Part no. 8R0971104CC

Audi Q5 8R Rear Bumper PDC Parking Sensor Wiring Harness Loom 8R0971104CC

Product currently unavailable

Part no. 3457153

Mini R55 R56 R57 LCI R58 R59 R60 MINI CD Radio Audio Player Head Unit 3456805

Product currently unavailable

Part no. 5Q4959593P

Skoda Octavia IV Door Module Control Unit Front Driver's Side Door 5Q4959593P

Product currently unavailable

...

Showing 13861-13959 of 18253 products