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.

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Audi A6 C8 Mild Hybrid Power Distribution Mount Bracket Support 4K0907347B

€23.95

Free delivery: Sep 15 – 16

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Part no. 9387164

BMW X3 F25 Front Lamp Headlight Control Module Unit ECU 9387164

€113.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8793254

Door Wiring BMW X3 G01 F97 X4 G02 F98 Cable Harness Rear Left Right N/O/S

€23.95

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Part no. CH22-15K801-BB

Range Rover Sport L320 5 Button Smart Key Fob CH22-15K801-BB

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9V4T-14A076-AB

Ford Kuga C394 Fuse Box Lid Cover Panel Housing Top 2.5 Petrol 9V4T-14A076-AB

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. DK62-14300-CE

Range Rover L405 Fuse Box Power Terminal Wiring Harness Cable DK62-14300-CE

€47.95

Free delivery: Sep 15 – 16

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Part no. GK3T-14A120-AD

Ford Transit Mk8 Battery Cable Wire 2.0 TDCi Diesel GK3T-14A120-AD

€23.95

Free delivery: Sep 15 – 16

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Part no. 9384988

BMW F20 F45 F46 Kafas Camera Control Module Unit ECU 9384988

€23.95

Free delivery: Sep 15 – 16

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Part no. YML500861

Land Rover Range Rover Sport L320 Driver's Seat Wire Harness Cable YML500861

€47.95

Free delivery: Sep 15 – 16

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Part no. 9247088

BMW X1 Series E84 Wiring Loom Harness Passenger Side 9233559

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2125403005

Mercedes W212 M271 Wiring Battery Alternator Starter Harness Cable A2125403005

€113.95

Free delivery: Sep 15 – 16

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Part no. A6429002900-11

Mercedes W164 ML300 OM642.820 204HP Engine Control ECU Kit A6429002900 Automatic

€332.95

Free delivery: Sep 15 – 16

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Part no. 4H0945095H-2

Audi A8 D4 Rear Outer Tail Light Lamp LED Wiring Cable Left N/S 4H0945095H

€23.95

Free delivery: Sep 15 – 16

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Part no. A2819006904

Smart 453 M281.910 90HP Engine Control Unit ECU A2819006904 Automatic

€89.95

Free delivery: Sep 15 – 16

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Part no. 1734633

Ford Fiesta MK7 1.6 TDCI Starter Motor Engine Diesel 8V2111000AD

€32.95

Free delivery: Sep 15 – 16

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Part no. 8T0035223M-1

Audi A5 8T Sound System Audio Amplifier Amp Unit Bang & Olufsen 8T0035223M

€664.95

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Part no. 038907282

VW Volkswagen Transporter T5 Spark Plug Glow Plug Relay Module Unit 038907282

€32.95

Free delivery: Sep 15 – 16

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Part no. 99161010500

Porsche Cayman 981 718 982 Fuse And Relay Box Petrol 99161010500

€89.95

Free delivery: Sep 15 – 16

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Part no. A2048708026

Mercedes W204 Media Interface Control Unit Module ECU A2048708026

€23.95

Free delivery: Sep 15 – 16

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Part no. 8V5035225

Audi A3 8V Keyless Entry Amplifier Control Box Module Aerial Antenna 8V5035225

€23.95

Free delivery: Sep 15 – 16

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Part no. 5N0971858E

VW Volkswagen Tiguan 5N Starter Retaining Plate Bracket Mount Support 5N0971858E

€23.95

Free delivery: Sep 15 – 16

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Part no. FV6T-14A280-BAE

Ford Transit Connect Cable Alternator Starter Battery Wiring FV6T-14A280-BAE

€56.95

Free delivery: Sep 15 – 16

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Part no. 06A903143P

Audi TT 8N Alternator Bracket Mount Holder 06A903143P

€28.95

Free delivery: Sep 15 – 16

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Part no. 517502280

Fiat Panda Mk2 Negative Battery Terminal Wiring Earth Cable 00517502280

€23.95

Free delivery: Sep 15 – 16

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Part no. 8654460-2

Mini Cooper F54 F55 136HP Petrol B38 Engine ECU Kit DME 8654460 + BDC + Key

€370.95

Free delivery: Sep 15 – 16

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Part no. 8519663-16

Mini Cooper SD R60 R61 ALL4 N47N 143HP ECU Kit DDE 8519663 CAS3 Key Manual

€194.95

Free delivery: Sep 15 – 16

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Part no. W164-JUNSUN

Mercedes W164 X164 Junsun Car Radio 10.1"Android CarPlay 32GB XT8191CX-F

€170.95

Free delivery: Sep 15 – 16

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Part no. 9118611

BMW Z4 E86 Hifi Audio Sound AMP Amplifier Module 9118611

€574.95

Free delivery: Sep 15 – 16

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Part no. 059907309AC-1

Audi Q7 4M 3.0 TDI DPXA 286HP Quattro Engine Control ECU 059907309AC Automatic

€550.95

Free delivery: Sep 15 – 16

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Part no. A2128208826

Mercedes W212 Door Control Module Unit ECU Rear Right O/S A2128208826

€23.95

Free delivery: Sep 15 – 16

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Part no. A2048700594-1

Mercedes W204 Radio Player COMAND Navi CD Head Unit A2048700594

€94.95

Free delivery: Sep 15 – 16

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Part no. 7L0907719

Volkswagen Touareg 7L Anti Theft Alarm System Control Module Unit ECU 7L0907719

€23.95

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Part no. EB3T-14603-A

Ford Ranger Mk3 T6 Positive Battery Cable Lead Terminal Harness EB3T-14603-A

€23.95

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Part no. FK72-14E112-AB

Land Rover Discovery Sport L550 Rear Bumper PDC Control Module FK72-14E112-AB

€23.95

Free delivery: Sep 15 – 16

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Part no. 8647878

BMW X5 F15 N20 Petrol Sensor System Engine Wiring Harness Cable Loom 8647878

€175.95

Free delivery: Sep 15 – 16

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Part no. A2465401950

Battery Base Mercedes C117 W176 W246 Power Fuse Relay Box A2465401950

€23.95

Free delivery: Sep 15 – 16

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Part no. LR047573

Range Rover Evoque L538 2.2 TDCI Starter Motor EJ3211001AB

€47.95

Free delivery: Sep 15 – 16

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Part no. AH42-14D374-AF

Land Rover Range Rover L322 Air Module Control Unit AH42-14D374-AF

€47.95

Free delivery: Sep 15 – 16

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Part no. A2389055000

Mercedes W205 Antenna Aerial Amplifier Duplexer Module Receiver Unit A2389055000

€23.95

Free delivery: Sep 15 – 16

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Part no. 8K5035225C

Audi A4 B8 Antenna Amplifier Diversity 8K5035225C

€23.95

Free delivery: Sep 15 – 16

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Part no. A2055402850

C205 Fuse Box Mercedes C205 Electrical Interior Relay Fuse Socket Control A2055402850

€32.95

Free delivery: Sep 15 – 16

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Part no. 9224177-1

BMW F10 F11 F12 F13 F15 F16 Air Module Crash Sensor 9224177

€23.95

Free delivery: Sep 15 – 16

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Part no. 9128569-2

Wiring Harness BMW E81 E82 E87 LCI E88 Air Valve Air Flap Cable Wire 9128569

€23.95

Free delivery: Sep 15 – 16

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Part no. 4M0959792E

Audi A5 F5 Door Module Control Unit ECU Front Passenger Side 4M0959792E

€28.95

Free delivery: Sep 15 – 16

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Part no. 6863385

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6863385

€28.95

Free delivery: Sep 15 – 16

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Part no. HPLA-70011-AB

Range Rover Sport L494 Battery Cable Wire Positive Lead HPLA-70011-AB

€47.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2429004801

Mercedes W176 W204 W212 Telematics Communication Control Unit Module A2429004801

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8T0971029S

Audi A5 8T Door Wiring Loom Harness Cable Front Left N/S 8T0971029S

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. YMZ500810C

Land Rover Range Rover Sport L320 Towing Wiring Loom Harness Cable YMZ500810C

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5QF802717A

Audi RSQ3 F3 Battery Holder Cover Bracket Mount Retainer Lid Top 5QF802717A

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8V5971693B

Audi A3 8V A5 8T Rear Door Wiring Loom Harness 8V5971693B

€28.95

Free delivery: Sep 15 – 16

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Part no. A6081550035

Mercedes W177 Alternator Mounting Bracket Carrier A6081550035

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5F4971035AE

Seat Leon Mk3 5F Door Wiring Loom Cable Front Driver Side O/S 5F4971035AE

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 3Q0959435P

Skoda Kamiq NW Karoq ND VW Passat 3G Keyless Entry Control Module ECU 3Q0959435P

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 46354796

Vauxhall Movano C 2.2 BlueHDI B22LUE 140HP Engine ECU Unit 46354796 Manual

€664.95

Free delivery: Sep 15 – 16

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Part no. 14B296AA

Ford Transit Connect Yaw Sensor ESP Speed Sensor Control Unit Module 14B296AA

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 03L906018BQ

Skoda Yeti 5L Engine Control Unit ECU 2.0 TDI 110HP CFHF 03L906018BQ Manual

€132.95

Free delivery: Sep 15 – 16

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Part no. 9297897

BMX X4 F26 X6 F16 Cental Woofer Speaker Audio Unit Left Right N/O/S 9297897

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. C1BT-14240-ADD

Ford Fiesta Mk7 Door Wiring Loom Harness Rear Right O/S C1BT-14240-ADD

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. CV6T-14B531-DB

Ford Kuga C520 Front Door Module Control Unit Driver Side CV6T-14B531-DB

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5K0907115K-1

Volkswagen Golf Mk6 Engine Control ECU Kit 2.0 Petrol 235HP 5K0907115K Manual

€569.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A1665402709

Mercedes W166 Automatic Gearbox Wiring Loom Harness Cable A1665402709

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. GR3T-19C107-KK

Ford Mustang Mk6 GT Radio Stereo Multimedia Player Head Unit GR3T-19C107-KK

€465.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. KK3T-14F642-AC

Ford Transit Custom Data Link Connection Module KK3T-14F642-AC

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6G9N-17D547-AE

Ford Galaxy Mk2 Windscreen Front Window Rain Sensor Bosch 6G9N-17D547-AE

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2218706887

Mercedes W221 Head Unit Multimedia TV Player CD Changer Inverter A1679001014

€569.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 2Q0959655AN

Volkswagen Transporter T6 Air Module Sensor Control Unit ECU 2Q0959655AN

€379.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. CK52-14A260-BC

Range Rover L405 Fuse Box Battery Cable Holder Bracket CK52-14A260-BC

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8P7907115L-1

Audi A3 8P 1.8 TFSI CDAA 160HP Engine ECU Kit Ignition + Key 8P7907115L Manual

€189.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A4539050200

Smart 453 Fortwo Door Pressure Crash Impact Sensor Front Left N/S A4539050200

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4G8971095AH

Audi A6 C7 A7 4G Front PDC Parking Sensor Wiring Loom Harness 4G8971095H

€118.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 059911021K

Audi A5 8T 3.0 TDI CLAB Diesel Engine Starter Motor 059911021K

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 05E972627B

Volkswagen Golf SV 1.5 TSI DADA Automatic Engine Wiring Harness 05E972627B

€108.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. DG9T-14631-HHJ

Ford Mondeo Mk5 Door Wire Harness Cable Wiring Front Left N/S DG9T-14631-HHJ

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. SRO000020

Range Rover L322 YAW Rate Speed ESP Sensor Module Bosh SRO000020

€75.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 127073X

Mercedes W176 Electrical Wiring Loom Harness Cable 127073X

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. CK52-14301-AC

Range Rover L405 Negative Minus Battery Cable Wiring Loom Harness CK52-14301-AC

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A9065451640

Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. AV6T14A067BC

Ford Transit Connect Mk2 II Fuse Box Battery Terminal Unit Module AV6T14A067BC

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2118201626

Mercedes S211 W211 Rear Door Control Unit Right O/S A2118201626

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8V4971036J

Audi A3 8V Front Door Wiring Harness Cable Passenger Side 8V4971036

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A1331510745

Mercedes C117 CLA 45 AMG Heat Shield Alternator Plate Petrol M133 A1331510745

€28.95

Free delivery: Sep 15 – 16

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Part no. A2035405707

Mercedes-Benz CL203 Front Left Right Door Wiring Loom Harness A2035405707

€23.95

Free delivery: Sep 15 – 16

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Part no. A2045451047

Control Unit Bracket Mercedes W204 W212 Audio Module Holder Mount A2045451047

€23.95

Free delivery: Sep 15 – 16

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Part no. 8507360

Automatic Gearbox Wiring BMW F10 F11 530d N57 Engine Loom Harness Cables 8513823

€127.95

Free delivery: Sep 15 – 16

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Part no. 8046454

BMW E81 E82 E87 E90 PDC Ultrasonic Sensor Front Rear Melbourne Red - A75 8046453

€23.95

Free delivery: Sep 15 – 16

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Part no. RADIO

Audi A3 A4 TT Android Radio DVD GPS Head Unit

€94.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. CV6T-14B533-DB

Ford Kuga C520 Front Door Module Control Unit Passenger Side N/S CV6T-14B531-DB

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. FV61-12A650-BRA

Ford Transit Connect Mk2 1.5 TDCi 75HP Engine Control ECU FV61-12A650-BRA Manual

€142.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 226334803R

Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Engine Wiring Loom Cable 226334803R

€23.95

Free delivery: Sep 15 – 16

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Part no. 8K0907064EB

Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907064EB

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. KK72-12C520-FBC-1

Land Rover Discovery L550 2.0 204DT 180HP Engine ECU KK72-12C520-FBC Automatic

€222.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4L0907282B

Audi A7 4G8 Glow Plug Control Unit Controller Module 4L0907282B

€70.95

Free delivery: Sep 15 – 16

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Part no. 8W0941824AK

Audi A4 B9 A5 F5 Q5 FY Fuse Box Battery Terminal 8W0941824AK

€23.95

Free delivery: Sep 15 – 16

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Part no. 4H0907182G

Audi A8 D4 4H Multicontour Seat Module Control Unit Left Right N/O/S 4H0907182G

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5C6945095H-1

Volkswagen Jetta A6 Rear Left N/S Tail Light Plug Cable 5C6945095H 4D0972704

€23.95

Free delivery: Sep 15 – 16

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Part no. 7424109-2

BMW F32 F33 F80 F82 F83 Headlamp Headlight Xenon Wiring Cable Left N/S 7424109

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A6519003701-3

Mercedes W212 OM651.924 204HP Engine Control ECU Kit A6519003701 Automatic

€189.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. FK72-13193-BK-2

Land Rover Discovery L550 Rear Lamp Socket Plug Cable Left N/S FK72-13193-BK

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

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