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 A1 8X 1.2 TFSI CBZA 86HP Engine Control ECU Kit 03F906070GN Manual

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P0862335M

Audi A4 B7 RS3 8P R8 42 TT 8J Bluetooth Interface Module Unit MMI 8P0862335M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9306084

BMW F20 F21 F22 F30 F31 Front Seat Module Control Unit 9306084

€151.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6G9T-14A076-JC

Land Rover Freelander 2 L359 Fuse Box Cover Lid Panel Trim 6G9T-14A076-JC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129002401

Mercedes S212 Air Suspension Control Module A2129002401

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8674258-1

Mini F54 F55 F57 B48 136HP Engine Control ECU Kit DME 8674258 Automatic

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. M8D2-14C361-AA

Land Rover Range Rover Evoque L551 Water Pump Harness Loom Wiring M8D2-14C361-AA

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. JPLA-14C239-BB

Range Rover Evoque L551 Climate Control Unit Module ECU JPLA-14C239-BB

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1635450716

Mercedes W163 FBS Switch Keyless Entry Module Control Unit ECU A1635450716

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BV6T-17D547-AD

Ford Transit Mk8 Front Window Windscreen Rain Light Sensor BV6T-17D547-AD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C0915336A

Audi A3 8P Battery Box Tray Covering Housing Trim Holder Bracket 3C0915336A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A28FC6

Mini F65 F66 F67 Engine Control ECU Mount Bracket Support 5A28FC6

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W1907064AA

Audi A4 B9 A5 F5 Comfort Body Control Module Unit ECU 8W1907064AA

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2514401409

Mercedes ML W164 Door Wiring Harness Front Left Right N/O/S Loom A2514401409

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L906018JG-4

Audi A5 8F 2.0 TDI CGLC 177HP Diesel Engine ECU Kit Key Lock 03L906018JG Manual

€66.95

Free delivery: Nov 12 – 13

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Part no. 8XA035193

Audi A1 8X Navigation Head Unit Radio Audio MMI CD Player Stereo 8XA035193

€569.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X23-14B006-AA

Jaguar XF X250 Front Bonnet Hood Pedestrian Impact Sensor Unit 8X23-14B006-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0035399-1

Bose Door Tweeter Audi A6 RS6 C7 A7 RS7 Speaker Rear Left Right N/O/S 4G0035399

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8582280-4

BMW F20 116d N47N 116HP Engine Control ECU DDE 8582280 Automatic Transmission

€47.95

Free delivery: Nov 12 – 13

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Part no. 4K0035710

Audi A6 C8 Front A Pillar Column Dashboard Speaker Right O/S 4K0035710

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A207E7

BMW X3 G01 G20 G21 G30 G31 Audio Speaker Sound Amplifier Harman 5A207E7

€379.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6814609

BMW 1 3 5 Series F10 F20 F30 Bus Interface Connector Data Terminating 6814609

€23.95

Free delivery: Nov 12 – 13

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Part no. 8X23-14C512-AA

Jaguar XF X250 Multimedia Audio Amplifier Control Unit Module 8X23-14C512-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0907368

Audi A4 B9 A5 S5 F5 Rear Comfort Control Unit Bracket Holder Left N/S 8W0907368

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. EM5T-19H449-DAD

Ford Fiesta Mk7 SD Card Map Europe SAT Navigation Western Europe EM5T-19H449-DAD

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G8945096-2

Audi A7 4G8 Rear Light Lamp Taillight LED Right O/S Harness Loom WIre 4G8945096H

€23.95

Free delivery: Nov 12 – 13

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Part no. A0009058112

Mercedes C118 W177 W247 Negative Battery Terminal Cable Lead A0009058112

€23.95

Free delivery: Nov 12 – 13

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Part no. J8A2-70718-BN

Jaguar XF X260 F-Pace X761 Telematics Control Unit Module ECU J8A2-70718-BN

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. VPCE2H-18B647-BB

Ford Fiesta Mk7 Heater Resistor Blower Fan Motor Unit Module VPCE2H-18B647-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5WA980653E

Audi A3 S3 8Y Front Camera FAS Lane Assistance Control Unit 5WA980653E

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9389203

Mini Cooper F56 Door Wiring Loom Harness Cable Front Driver's Side 9389203

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2033252

Ford Fiesta Mk7 Engine Starter Motor 1.6 Duratorq CV2T-11000-AA

€32.95

Free delivery: Nov 12 – 13

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Part no. 420919275-1

Rear Bumper PDC Audi A5 Sensor Parking Distance Control 420919275 1706091849

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5E3945208A-2

Skoda Octavia Mk4 NX Tail Light Side Panel Lamp Wiring Rear Right O/S 5E3945208A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8678870

BMW X4 F98 Rear Differential Ground Suppression Belt Wire 8678870

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8677250

Battery Starter Cable Mini Countryman F60 Cooper S B48 Positive Plus 8677250

€32.95

Free delivery: Nov 12 – 13

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Part no. DV61-12A650-BKE

Ford Transit Connect 1.6 Duratorq 95HP Engine Module ECU DV61-12A650-BKE Manual

€322.95

Free delivery: Nov 12 – 13

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Part no. 7848838

BMW M4 F82 Smart Opener Sensor 7848838

€28.95

Free delivery: Nov 12 – 13

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Part no. A1775408312

Door Wiring Mercedes W177 W247 Driver Side Cable Harness Loom A1775408312

€32.95

Free delivery: Nov 12 – 13

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Part no. A1648205685

Air Module Mercedes ML W164 W251 SRS Control Unit ECU A1648205685

€23.95

Free delivery: Nov 12 – 13

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Part no. VUX500103

Land Rover Range Rover L322 Radio Tuner Receiver Control Module ECU VUX500103

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8583657

Wiring Harness BMW F20 E90 LCI Mini R56 LCI Engine Glow Plug Module 8583657

€23.95

Free delivery: Nov 12 – 13

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Part no. 3455306

Mini R57 Cabrio Convertible DWA Alarm System Relay ECU 3455306 65753455306

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0915336B

Audi A3 8P Volkswagen Golf Mk5 Battery Side Cover Surround Housing 1K0915336B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8368231

BMW E46 Door Speaker Tweeter Front Left N/S 8368231

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6956672

BMW E63 E63N LCI Centre Console Switch Centre DTC PDC 6956672

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0971558K

VW Volkswagen Golf Gti 1k Door Wiring Loom Harness Front Right O/S 1K0971558K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9231518

BMW F31 Antenna Aerial Diversity Trap Circuit 9231518

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7220891

BMW E91 LCI Control Unit Module Support Plate Bracket Carrier Holder 7220891

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1779002207

Mercedes W177 Rear Left Right N/O/S Door Control Module A1779002207

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0015424523

Parktronic Display Mercedes W207 W212 PDC System Parking Sensor A0015424523

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0937517-2

Audi A3 RS3 RS4 B7 8V Potential Power Distribution Junction Jump Point 1K0937517

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. KK3T-15604-FAE

Ford Transit Custom BCM Body Control Module Fuse Box ECU KK3T-15604-FAE

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. J0VDC2H01

Volkswagen Sharan 7N Radio Navigation DVD Screen Head Unit J0VDC2H01

€294.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1648701089

Mercedes GL X164 Antenna Amplifier Control Unit Module A1648701089

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LX6T-14A313-EAE

Ford Kuga Mk3 Centre Console Rear Seat Heated Wiring Loom Harnes LX6T-14A313-EAE

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH42-14027-ZAD

Range Rover L322 Door Wiring Harness Loom Rear Left Right N/O/S AH42-14027-ZAD

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2127341

Ford Mustang Mk6 Cable Harness Wire FR3T-13A840-CB

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CM5T-14B006-AA

Ford Focus Mk3 Air Module Crash Impact Sensor CM5T-14B006-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8512500-1

BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8512500 CAS3 + Key Manual

€317.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BV6T-14E073-AAD

Ford Focus Mk3 Front Door Wiring Loom Harness Left N/S BV6T-14E073-AAD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. JK2T-14B446-ACC

Ford Transit Custom Mk8 Front Panel Bumper Wiring Loom Harness JK2T-14B446-ACC

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CPLA-14Q073-AA-1

Range Rover L405 Fuse Box Control Module CPLA-14Q073-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AV1T-14A584-DEF

Ford B-Max Door Wiring Harness Cable Keyless Front Left N/S AV1T-14A584-DEF

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 891730D020

Toyota Yaris P9 Front Crash Side Impact Sensor Control Unit 891730D020

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G8945093-2

Audi A7 4G8 Rear Boot Taillight Light Lamp Left N/S Harness Loom Wire 4G8945093

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8865002400

Toyota Auris E15 A/C Control Module Air Con Unit ECU Unit 1.6 Petrol 88650-02400

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. KK3T-14B321-BC

Ford Transit Mk8 Air Module Restraint Control Unit ECU KK3T-14B321-BC

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1827429

Ford B-Max Sony Radio CD Player Control Panel Stereo Autoradio AV1T-18K811-SA

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 982972156C

Porsche 718 Boxster 982 Bumper Wiring Harness Front Right O/S 982972156C

€151.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A28AF0

BMW F36 Gran Coupe Radio Player Head Unit CD DVD 5A28AF0

€840.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2829006700

Mercedes W177 A200 M282.814 163HP Engine Control Unit ECU A2829006700 Automatic

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P0953549E

Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549E

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 05L907309B-2

Audi Q3 F3 40 TDI DTUA Quattro 200HP Engine Control ECU Kit 05L907309B Automatic

€208.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3V0971694Q

Skoda Superb Mk3 3V Rear Door Wiring Harness Cable Right O/S 3V0971694Q

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. C1BB-13404-AE-1

Ford Fiesta Mk7 Rear Outer Tail Light Lamp Wiring Cable Right O/S C1BB-13404-AE

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6824110

BMW 3 F30 LCI 330e Hybrid High Voltage Battery Wiring Loom Harness 6821420

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR021461

Land Rover Range Rover L322 3.6 V8 368DT Diesel Starter Motor 7H42-11001-AB

€146.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. A2118204197-2

Mercedes C219 Display Screen Radio Multimedia Navigation Sat Unit A2118204197

€175.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4K0919605A

Audi A6 C8 A7 S7 RS7 Display Screen Multimedia Navigation 4K0919605A

€294.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7410838-1

BMW X3 F25 Front Headlight Lamp Light Wiring Harness Cable Right O/S 7410838

€23.95

Free delivery: Nov 12 – 13

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Part no. A2139001118

Mercedes W213 Front Door Control ECU Module Right Side O/S A2139001118

€23.95

Free delivery: Nov 12 – 13

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Part no. A2519062200-1

Mercedes W251 COMAND Navigation Head Unit Radio Sat Nav Screen A2519062200

€332.95

Free delivery: Nov 12 – 13

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Part no. 8J0907115BC-1

Audi TT 8J Engine Control Unit Module ECU 1.8 TFSI CDAA 160HP 8J0907115BC Manual

€279.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8H1971035CT

Audi A4 S4 RS4 8H Cabriolet Door Wiring Loom Harness Passenger Side 8H1971035CT

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 99757241902

Porsche Boxster Cayman 987 Underbody Cover Panel Trim 99757241902

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9356156

External Ignition Base BMW F20 F30 F32 F33 Power Terminal Distribution 9356156

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959794A

Audi A4 B8 Door Module Rear Right O/S Control Unit Module ECU 8K0959794A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9343287

BMW i3 I01 Mini F56 Air Conditioning System A/C Control Unit Module 9343287

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6G9T-14324-BJ

Ford Mondeo Mk4 Negative Earth Cable Battery Lead Wire 6G9T-14324-BJ

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2218210006

Door Cable Mercedes W221 W216 Front Wiring Loom Seat Control Switch A2218210006

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L0971235

Volkswagen Touareg 7L Negative Battery Terminal Cable Wiring Loom 7L0971235

€23.95

Free delivery: Nov 12 – 13

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Part no. 919504H071

Hyundai H-1 Fuse Box Module Control Unit ECU 919504H071

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0951253A

VW Audi Seat Skoda Glow Plug Relay Unit Engine Supply Black 4 Pins 1K0951253A

€23.95

Free delivery: Nov 12 – 13

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Part no. 8W0907159D

Audi RS4 B9 A5 F5 Impact Sound Module Control Unit 8W0907159D

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5H0971104P

Volkswagen Golf Mk8 CD1 Parking Sensor Wiring Rear Bumper Loom Cable 5H0971104P

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. ASM1181

Audi A4 A6 Skoda Superb Engine Starter Motor Apec ASM1181

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1644406910

Mercedes ML W164 Door Wiring Harness Rear Left Right N/O/S Loom A1644406910

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2479052503

Mercedes Sprinter W910 Remote Key Control Unit A2479052503

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

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