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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Mercedes Vito W447 Battery Cable Diesel OM651 Alternator Wiring A4475406353

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1648204164-2

Mercedes GL X164 Rear Lamp Light Side Panel Wiring Cable Left N/S A1648200564

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. F1ET-14B321-CB

Ford Focus Mk3 Air Module ECU Control Unit Controller Sensor F1ET-14B321-CB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E911023E

Audi A8 D3 Engine Starter Motor 3.2 FSI Petrol 260HP BPK Quattro 06E911023E

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V0837220D

Audi A3 S3 RS3 8V Remote Key Fob Opener Lock 3 Button 434 Mhz 8V0837220D

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5E5945111A-2

Skoda Octavia MK3 Rear LED Tail Light Lamp Left N/S Harness Loom Wire 5E5945111A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L906018GF

VW Scirocco Mk3 2.0 TDI 140HP CFHC Engine Control ECU Kit 03L906018GF Manual

€227.95

Free delivery: Nov 12 – 13

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Part no. CV1T-14B533-AE

Ford B-Max Mk1 Front Door Module Control Unit Passenger Side CV1T-14B533-AE

€23.95

Free delivery: Nov 12 – 13

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Part no. JPLA-14B006-DA-1

Range Rover Evoque L551 Crash Impact Control Sensor JPLA-14B006-DA

€32.95

Free delivery: Nov 12 – 13

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Part no. CPLA-14D620-AC

Range Rover L405 Rear Door Control Unit Module CPLA-14D620-AC

€32.95

Free delivery: Nov 12 – 13

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Part no. 4G0951177-1

Audi A6 C7 A7 4G Alarm Movement Detector Roof Headliner 4G0951177

€23.95

Free delivery: Nov 12 – 13

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Part no. AH22-11001-AC

Land Rover Discovery 4 L319 Starter Motor 3.0 Diesel 306DT AH22-11001-

€23.95

Free delivery: Nov 12 – 13

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Part no. HX73-14F427-DC

Jaguar Xf X260 Steering Rack Pinion Cable Wire Harness Wire Loom HX73-14F427-DC

€23.95

Free delivery: Nov 12 – 13

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Part no. LJD4100AB

Jaguar XK8 X100 Radio Stereo Audio Head Unit Cassette Player LJD4100AB

€118.95

Free delivery: Nov 12 – 13

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Part no. 8273142010

Toyota RAV4 Mk2 Junction Block Driver Side Control Module 8273142010

€37.95

Free delivery: Nov 12 – 13

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Part no. 5N0035342B-1

VW Volkswagen Touran Golf Polo Interface Module Multimedia Control 5N0035342B

€23.95

Free delivery: Nov 12 – 13

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Part no. 8V4971035J

Audi S3 8V Door Trim Wiring Wire Harness Cable Front Driver's Side 8V4971035J

€28.95

Free delivery: Nov 12 – 13

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Part no. 8K0971035BB

Audi A5 8T Front Driver Side Door Wiring Harness Cable 8K0971035BB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N2941005C-2

Volkswagen Tiguan 5N Headlight Wiring Cable Adapter Front Left N/S 5N2941005C

€23.95

Free delivery: Nov 12 – 13

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Part no. 7789755

BMW 5 6 Series E60 E61 E63 E64 LCI Cable Starter-Base B 7789755

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR080292

Range Rover Sport L494 Engine Starter Motor 3.0 Diesel FPLA-11001-BB

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959793C

Audi A4 B8 Door Module Control Unit ECU Front Driver's Side 8K0959793C

€23.95

Free delivery: Nov 12 – 13

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Part no. 8616814

BMW X5 F15 Cooler High Voltage Battery Lower 8616814

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AG91-12A650-ADF

Ford Mondeo Mk4 Engine Control ECU 2.0 TDI 163 HP KIT AG91-12A650-ADF Manual

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 82G971035B

Audi A1 GB Mk2 Door Wiring Loom Harness Cable Front Driver Side O/S 82G971035B

€23.95

Free delivery: Nov 12 – 13

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Part no. 6933264

BMW E65 E66 Control Unit Door Rear Passenger Side 6933264

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F1971687AL

Audi A6 C6 Rear Left N/S Door Harness Cable Loom 4F1971687AL

€47.95

Free delivery: Nov 12 – 13

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Part no. 8606058

BMW F30 330e Hybrid High Voltage Battery Module Screw Bolt 8606058 SET

€23.95

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Part no. 5E5035464

Skoda Octavia Mk3 Antenna Aerial Amplifier Booster Bracket Holder 5E5035464

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0862335B

Audi A4 B8 Bluetooth Multimedia Interface Control Module Unit ECU 8T0862335B

€28.95

Free delivery: Nov 12 – 13

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Part no. 8594489

BMW X1 F48 Mini F55 F56 F57 Battery Cable Starter-Base B+ 8594489

€23.95

Free delivery: Nov 12 – 13

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Part no. A2055408940

Mercedes W205 Front Door Wiring Loom Harness Cable Right O/S Side A2055408940

€32.95

Free delivery: Nov 12 – 13

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Part no. 8X23-16E600-AB

Jaguar XF X250 Bonnet Pedestrian Air Module Actuator Left Right 8X23-16E600-AB

€37.95

Free delivery: Nov 12 – 13

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Part no. A2535400701

Mercedes A238 M276 Engine Alternator Wiring Loom Harness A2535400701

€61.95

Free delivery: Nov 12 – 13

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Part no. 7P0937132A

VW Volkswagen Touareg 7P Fuse Box Control Unit Cover Trim Panel 7P0937132A

€23.95

Free delivery: Nov 12 – 13

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Part no. 8X0971845C

Audi A1 8X Fuse Box Relay Control Unit Module Bracket Holder 8X0971845C

€28.95

Free delivery: Nov 12 – 13

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Part no. JX73-7C078-BC

Jaguar XF X260 Transmision Wiring Loom Gearbox Wire Harness JX73-7C078-BC

€37.95

Free delivery: Nov 12 – 13

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Part no. 7544892

BMW 3 F30 LCI 330e B48X HV Accumulator Battery Negative Cable Ground 7544892

€23.95

Free delivery: Nov 12 – 13

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Part no. DV6T14B531BD

Ford Transit Connect Door Module Front Right O/S Control Unit ECU DV6T14B531BD

€23.95

Free delivery: Nov 12 – 13

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Part no. TM450

Trafficmaster TM450 GPS Vehicle Location Tracker Control Unit Module ECU

€23.95

Free delivery: Nov 12 – 13

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Part no. A2055407616

Wiring Mercedes W205 Electrical Cable Transmission To Body A2055407616

€23.95

Free delivery: Nov 12 – 13

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Part no. 8T0971036A

Audi A5 8T Front Door Wiring Harness Cable Left N/S Passenger Side 8T0971036A

€23.95

Free delivery: Nov 12 – 13

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Part no. 9897879-4

Mini Cooper F55 F56 F60 B38C 1.5 136HP Engine Module ECU DME 9897879 Manual

€118.95

Free delivery: Nov 12 – 13

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Part no. 3415607

BMW X3 E83 LCI Petrol N52N Cable Alternator Starter Base B+ 3415607

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YTA101910

Land Rover Freelander L314 Positive Plus Pole Battery Cable Lead Loom YTA101910

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6937083

Ultra Sonic Module Mini Cooper R50 R53 Alarm System Sensor 6937083

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0907155

Seat Alhambra 7N Power Voltage Converter Inverter Socket 5N0907155

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7541779

BMW Z4 E85 2.0i N46 Cable Alternator Starter Base B+ 7541779

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7928582

BMW G01 G02 G05 G20 G21 G22 G30 G31 G32 DAB Audio Sound Amplifier Module 7928582

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8506444

BMW E90 E91 LCI E92 330d N57 245HP ECU Engine Control Unit DDE 8506444 Manual

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7379674-2

BMW F01 F02 LCI Front Headlight Wiring Harness Cable Plug Right O/S 7379674

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0005440456

Mercedes W163 Green Relay 2-Pin ML350 112970 3.7 Petrol 245HP A0005440456

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8E0907559H-1

Audi A4 B7 3.2 FSI Quattro AUK 255HP Engine ECU Kit 8E0907559H Manual

€474.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7567321-1

BMW 1 3 Series E81 E87 LCI E90 116i 316i N45N ECU Kit DME 7567321 + CAS3 + Key

€408.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03E906019M

Volkswagen Polo 6R 1.2 Petrol CGPB 60HP Engine Control ECU Manual 03E906019M

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DV41-12A650-BJ-1

Ford Kuga Mk2 2.0 TDCi TXMA 163HP Engine Control ECU Kit DV41-12A650-BJ Manual

€332.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. MB3T-14A411-SRC

VW Volkswagen Amarok NF Ford Ranger Cab Wiring Harness Loom MB3T14A411SRC

€23.95

Free delivery: Nov 12 – 13

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Part no. 9339825

BMW G11 G30 G31 Power Supply Module High Voltage Battery Terminal Point 9339825

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6957109

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 6957109

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7G9T-14B533-ED

Land Rover Freelander 2 L359 Driver's Door Control Unit Module 7G9T-14B533-ED

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CPLA-14B673-AH

Land Rover Range Rover L405 Tailgate Hatch ECU Module Control Unit CPLA14B673AH

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7843332

Engine Wiring BMW F10 M5 F12 M6 Loom Harness Injection Valve Cyl. 5-8 7843332

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DWM-500021

Land Rover Discovery 3 L319 Battery Box Base Panel Outer Right O/S DWM-500021

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. C2S43297

Jaguar X-Type X400 Engine Starter Motor Actuator Module Petrol 4X4U-11000-AB

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0907064CH

Volkswagen Touareg 7P BCM Body Comfort Module Control Unit 4H0907064CH

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G8971693

Audi A7 4G Door Harness Loom Cable Wiring Rear Left Right N/O/S 4G8971693

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 982035510B

Porsche 718 Cayman S 982C Telephone Aerial Front Skirt Multimedia 982035510B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0907658C

Audi S3 8Y A5 F5 Q5 FY A8L 4H Air Quality Sensor Unit 4H0907658C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1S0919275D-DGR1

Audi Volkswagen PDC Parking Distance Control Sensor SET Daytona Grey Pearl Z7S

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0907401-3

Audi S4 B8 3.0 TFSI CGWC 333HP Engine ECU Kit 4H0907401 Ignition + 2 Keys + Lock

€474.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7W93-11A134-AA

Jaguar XF 250 Power Adapter Battery Positive Terminal 7W93-11A134-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K1907401K-1

Audi A5 8T Engine Control ECU 2.7 TDI Diesel 190HP CGKA Automatic 8K1907401K Kit

€256.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9244421

BMW X5 E70 LCI PDC Parking Sensor Wiring Loom Harness Cable Front 9244421

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8634166

Alternator BMW G20 G30 G14 B47 B48 B58 B46 Alternator 180A 14V 8634166

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2139001726

Mercedes W205 W247 W253 Distronic Radar Sensor Control Unit Module A2139001726

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7H0971691Q

Volkswagen Transporter T5 Sliding Side Door Wiring Loom Harness Cable 7H0971691Q

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L6951171A

Volkswagen Touareg 7L Ultrasonic Alarm Monitor Sensor Control Unit 7L6951171A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6G9T-19E624-DB

Ford Kuga C394 Heater Blower Fan Motor Resistor 6G9T-19E624-DB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2475464000

Mercedes C118 W177 C247 Positive Battery Cable Cover Trim Tray A2475464000

€23.95

Free delivery: Nov 12 – 13

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Part no. LR065819

Land Rover Discovery Sport L550 Starter Motor 14V 2.2 224DT Diesel EJ32-11001-AC

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5K0907159B

VW Golf Mk6 Alarm Signal Sound Impact Body Control Module Unit 5K0907159B

€23.95

Free delivery: Nov 12 – 13

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Part no. 8843416

BMW G30 Battery Cell Module Supervision Circuit Control Unit 8843416

€23.95

Free delivery: Nov 12 – 13

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Part no. 9124585-SED

BMW E87 E90 PDC Parking Sensors Ultrasonic Set x2 Sedonarot - A79 9124585

€23.95

Free delivery: Nov 12 – 13

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Part no. 9797875

BMW U06 X1 U11 High-Voltage Battery Terminal Strip Bracket Mount Support 9797875

€23.95

Free delivery: Nov 12 – 13

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Part no. 7809680

Engine Wiring BMW F10 F11 N57 N57S Loom Cable Harness Injector Module 7809680

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5NA945208G-2

VW Volkswagen Tiguan 5N Rear Tail Light Outer Right O/S Harness Loom 5NA945208G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055405203

Mercedes W205 Negative Cable Battery Lead Minus Pole Wiring A2055405203

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8F0959655D

Audi A5 8F Air Module Control Unit ECU Crash Control 8F0959655D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9313616

BMW F30 F31 Driver's Side Door Wiring Electrical Loom Harness Cable 9313616

€56.95

Free delivery: Nov 12 – 13

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Part no. M8A2-9L468-AB

Range Rover Velar L560 Rear Subframe Wiring Harness Cable Loom M8A2-9L468-AB

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9827016

Mini F65 F66 F67 BMW F70 F74 B+ Power Junction Terminal 9827016

€37.95

Free delivery: Nov 12 – 13

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Part no. A0009820512

Energy Distributor Mercedes W177 W212 Power Control Unit Module A0009820512

€23.95

Free delivery: Nov 12 – 13

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Part no. H1BT-14B321-AJ

Ford Fiesta Mk8 Air Module Crash Impact Sensor H1BT-14B321-AJ

€23.95

Free delivery: Nov 12 – 13

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Part no. A2205408110

Mercedes W220 Battery Wire Starter Alternator Cable 55 AMG 113986 A2205408110

€23.95

Free delivery: Nov 12 – 13

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Part no. 7L5971204

Porsche Cayenne 955 Washer Spray Nozzle Wiring Loom Cable 7L5971204

€23.95

Free delivery: Nov 12 – 13

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Part no. NNW500440

Range Rover L322 Four Wheel Drive Transfer Box Module NNW500440

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8636596

BMW 1 3 Series F20 F21 F30 F31 Line Cable Power Distribution Module 8636596

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BV6T-14B526-BC

Ford Focus Mk3 Voltage Stabilisation Control Module Bosch ECU BV6T-14B526-BC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C9971104B

Volkswagen Passat B6 Rear Bumper Parking Sensor Wiring Loom Harness 3C9971104B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

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