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 S5 8T Door Wiring Wire Loom Cable Harness Front Passenger Side 8T0971030AE

€51.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. BJ32-3C097-AA

Range Rover Evoque L538 Front Height Level Sensor Right O/S BJ32-3C097-AA

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7798006

BMW E60 E61 E87 LCI E81 E82 X1 E84 E90 E91 N47 Diesel Starter Motor 7798006

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A1775406401

Mercedes W177 Door Wiring Loom Harness Cable Front Right O/S A1775406401

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7843526

BMW E90 E92 E93 M3 S65 Engine Starter Motor 7843526

€94.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2515401830

Mercedes W251 Starter Motor Alternator Wiring Harness Cable Loom A2515401830

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2661538979-2

Mercedes W169 B150 M266.920 95HP Engine Control ECU A2661538979 Manual

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9229847

BMW E70 Door Wiring Front Passenger Door Loom Cables Harness 9229847

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8720913

BMW U06 U10 U11 Front Power Distributor Box Cover Lid Housing 8720913

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9224959

Dashboard Monitor BMW X5 X6 E70 E71 Onboard Display Screen 8,8" 9224959

€80.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8516122

Battery Cable BMW X5 F15 X6 F16 Alternator Starter Wiring Loom Harness 8516122

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5G6035577K

VW Volkswagen Golf GTI MK7 Roof Antenna Aerial Amplifier Right O/S 5G6035577K

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 3C8971558AG

Volkswagen Passat CC Front Door Wiring Loom Harness Passenger Side 3C8971558AG

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8736682

BMW i3 I01 Body Domain Comfort Control Unit BDC Module ECU 8736682

€313.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 2S6T-15K601-BA

Ford Transit Courier 3 Button Remote Key Fob 2S6T-15K601-BA

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. MU5T-18808-EA

Volkswagen Amarok Nf Dashboard Tweeter Speaker Front Left N/S MU5T-18808-EA

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. BK2T-15607-AC

Ford Transit Custom Mk8 Ignition Key Reader Immobilizer Coil BK2T-15607-AC

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A1175450800

Negative Battery Terminal Mercedes C117 W176 W246 Lead Connector A1175450800

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8K0915181B

Audi A4 B8 A5 8T A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181B

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8C11-12A650-CG

Ford Transit MK7 2.2 TDCI P8FA 85HP Engine Control ECU 8C11-12A650-CG Manual

€132.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9251722

BMW F20 Front Left Door N/S Wiring Loom Harness Cables 9251715

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4E0910552G

Audi S8 D3 5.2 FSI 450HP BSM Quattro Engine Unit ECU 4E0910552G Automatic

€241.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8N8035111C

Audi TT TTS 8N 6 Disc CD Changer And Cartridge 8N8035111C

€47.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. DH22-14B192-AA

Land Rover Discovery Sport L550 Relay 4-Pin 20A 12V Unit Black DH22-14B192-AA

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9229899

BMW F01 F01N F02 F10 Tow Bar Trailer Towing Control Module Unit AHM 4 9229899

€142.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5WA959655H

Volkswagen VW Golf Mk8 Air Module Control Unit ECU Module 5WA959655H

€56.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. F30-SCREEN-3

BMW F30 F31 Dashboard Dash Central Information Screen Android 10.25" Display

€237.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6826772

BMW F10 F20 F30 X5 F15 Navigation Sat Nav Head Unit High Control Module 6826772

€284.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8J0951177

Audi TT 8J Interior Roof Alarm Motion Ultrasonic Sensor 8J0951177

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A6291501779

ECU Mercedes X164 Diesel OM629.912 Engine Control Module 306 HP Automatic

€104.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. KK62-14N274-AD

Range Rover Sport L494 Hybrid Wiring Loom Harness Cables KK62-14N274-AD

€47.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8P0953549

Audi A3 8P Steering Module Control Unit ECU 8P0953549

€51.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. KK3T-14D502-MCD

Ford Transit Mk8 Manual Transmission Wiring Harness 2WD 2.2 TDCI BK3T-14D502-FED

€47.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A6519007500

Mercedes W212 E220CDI OM651.924 Engine Unit Module ECU A6519007500 Automatic

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8570934

BMW F20 F21 116d ed Diesel N47N 116HP ECU Engine Control Unit DDE 8570934 Manual

€284.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6827161

Mini Cooper F55 F56 Control Unit Module Active Sound Design Amplifier 6827161

€85.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. K8D2-14632-AAD

Land Range Rover Evoque L551 Door Wiring Harness Rear Right O/S K8D2-14632-AAD

€51.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6822586

BMW F10 LCI F20 F21 F30 F31 DAB Bluetooth Head Control Unit Module Basic 6822586

€251.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8E0941004AK-2

Audi A4 B7 Headlight Wiring Harness Cable Plug Right O/S 8E0941004AK

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 06J971082D

Audi Q3 8U Engine Injector Module Wiring Harness Cable 2.0 TFSI 06J971082E

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2125406905

Mercedes W212 Door Wire Wiring Loom Front Left N/S A2125406905

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4L0959795B

Audi Q7 4L Door Control Module Unit ECU Rear Left N/S 4L0959795B

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. K1BY12A650BA

Ford Puma St Cf7 Engine ECU Module 200HP 1.5 Petrol YZJA K1BY-12A650-BA Manual

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 92002681

Audi A1 GB A3 8V 8Y Headlight Level Adjustment Motor Actuator 92002681

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 03L906018EE

Skoda Octavia Mk2 Engine Control Unit ECU 2.0 TDI 140HP 03L906018EE Automatic

€113.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5H0035411

Volkswagen Golf Mk8 A-Pillar Speaker Tweeter Sound Left Right N/O/S 5H0035411

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5A3FFB5

BMW F44 Body Control Module BDC ECU 5A3FFB5

€108.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8P0906131A

Audi A3 8P Engine Unit Bracket ECU Module Holder Bracket Mount 8P0906131A

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A4475411200

Mercedes Vito W447 Battery Support Holder Bracket Mount Tray A4475411200

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8513559

BMW X3 F25 30dX N57N Engine Module Injector Wiring Cable Loom Harness 8513559

€284.95

Free delivery: Sep 14 – 16

If paid before 14:00

Part no. 9221462

BMW F01 Front Seat Control Unit Module ECU Left Temic 9221462

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5Q0907530P

Audi A3 8V Gateway Control Module Unit ECU 5Q0907530P

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8J0907159B

Audi TT 8J Alarm Signal Body Sound Impact Control Module Unit 8J0907159B

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. DH22-14B192-BA

Land Rover Discovery Sport L550 Relay 4-Pin Unit 12V 20A Black DH22-14B192-BA

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7616120

Alternator BMW F20 F21 F30 F31 F36 Petrol N55 Generator 210A 7616120

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2198200764-2

Mercedes CLS C219 Rear Lamp Tail Light Wiring Cable Left N/S A2198200764

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. XUE000030

Range Rover L322 Radio Antenna Amplifier Suppression Module Unit XUE000030

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. DG93-10723-AE

Ford Mondeo Mk5 Battery Tray Box Cover Panel 2.0 TDCi DG93-10723-AE

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 167859

BMW X5 Series E53 Widescreen Motorway and Trunk Road Unit Module 167859

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. GJ32-15B484-AC

Range Rover Evoque L538 Rear Parking Sensor Wiring Loom GJ32-15B484-AC

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. KK3T-14D068-AD

Ford Transit Mk8 Fuse Box Power Distribution Relay KK3T-14D068-AD

€275.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2709002100-15

Mercedes C117 CLA 180 270.910 122HP Engine ECU Kit A2709002100 Automatic

€503.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. GV61-12A650-KA

Ford Transit Connect Mk2 1.5 TDCi 100HP Engine ECU GV61-12A650-KA Manual

€113.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A0035453501

Mercedes Vaneo W414 Sprinter W901 W902 W903 Fuse Box Battery A0035453501

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2125406805

Mercedes W212 Door Wiring Cable Front Right O/S A2125406805

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8798221

BMW F45 F46 6,5" Display Screen Central Information Navigation Monitor 8798221

€146.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2048204326

Mercedes W204 Interior Roof Cabin Light Panel Sensor Control Unit A2048204326

€94.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9797877

BMW X1 U11 High-Voltage Battery Module Connector Unit 9797877

€56.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 3456498

Harness Door Mini R57 LCI R58 R59 Cable Loom Front Passenger Side Wiring 3456498

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 95862083202

Porsche Cayenne 92A Fuel Tank Gauge Right O/S Sender Control Unit TDI 7P0919673

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6821970

Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 6821970

€237.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5G6035577J

VW Volkswagen Golf GTI MK7 Roof Antenna Amplifier AM/FM/TV Right O/S 5G6035577J

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A4539000106

Smart A453 Fortwo Electronics Module Control Unit A4539000106

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9316000

BMW X5 F15 Wiring Holder Electrical Cable Loom Cover Tunnel 40eX Hybrid 9316000

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A1729004004

Mercedes W204 Display Screen Multifunction Navigation Dashboard A1729004004

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 98661208300

Porsche Boxster 986 Rear Screen Window Heated Wiring Harness Cable 98661208300

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8J0971030K

Audi TT Mk2 8J Front Door Wiring Loom Harness Passenger Side 8J0971030K

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A6421508900-12

Mercedes V251 Engine Control ECU 3.0 CDI 265HP R350 A6421508900 KIT Automatic

€379.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9174271

BMW F10 LCI Bluetooth Control Unit Module Bracket Holder Mount 9174271

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 02Z911023F-1

Volkswagen Passat B6 Engine Starter Motor 1.9 TDI Plus Line 02Z911023F

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4F0959792P

Audi A6 C6 Front Door Lock Control Module Unit ECU Passenger Side 4F0959792P

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 1K0937125A-1

Audi A3 8P SE Engine Bay Fuse Relay Box Power Management 1K0937125A

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7643895

BMW F15 F16 Negative Battery Ground Minus Earth Cable Harness 7643896

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. C1BT-14B321-FF

Ford Fiesta Mk7 3Dr Air Module ECU Control Unit C1BT-14B321-FF

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 059971341E

Audi Q7 4L 3.0 TDI V6 Diesel Engine Cable Wiring Duct Channel Cover 059971341E

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2053401800

Mercedes W205 Pipe Line Piping Side Battery A2053401800

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2049005503

Mercedes C207 Complete Damper Adjustment Control Module ECU A2049005503

€70.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5Q0937132B

Skoda Superb Mk3 3V Fuse Box Lid Cover Trim Upper Panel 5Q0937132B

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 80A971228AG

Audi Q5 MK2 FY 40TDI 2.0 Diesel Alternator Starter Wiring Loom 80A971228AG

€51.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 2040560

Ford Transit Connect Mk2 HV Battery Cable Loom Harness Wiring 2040560

€61.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. XUO000040

Range Rover L322 Radio Aerial Amplifier Module Control Unit XUO000040

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. HPLA-10307-BA

Range Rover Sport L494 Negative Battery Wiring Loom Harness Cable HPLA-10307-BA

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7896848

BMW 5 Series E60 M5 Battery holder Hold Down Strap Bracket 7896848 6938434

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4M0959593N

Audi Q7 4M Front Door Control Module Unit ECU Driver's Side 4M0959593N

€56.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. KK3T-9K499-FCC

Ford Transit Mk8 Exhaust Emission Wiring Loom Harness KK3T-9K499-FCC

€165.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8849403

BMW U06 X1 U11Battery Air Guide Plate Cover Trim Housing 8849403

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A1679009011

Mercedes W205 C213 X253 Rear Door Control Module Unit ECU Left N/S A1679009011

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. BJ32-18808-BB-1

Range Rover L494 Door Speaker Front Rear Left Right N/O/S BJ32-18808-BB SET

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A1728200526

Mercedes R172 SLK Air Module SRS Control Unit ECU A1728200526

€80.95

Free delivery: Sep 15 – 16

If paid before 14:00

...

Showing 9703-9801 of 20751 products