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 W906 Alternator Generator Lucas 14V 180A A0141542702

PLN 279.95

Free delivery: Jul 16 – 17

If paid before 14:00

Part no. 9290357

BMW F10 F20 F22 F30 Navigation Head Unit Harman Sat Nav Unit High 9290357

PLN 1,899.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9339823

BMW X3 G01 G11 G12 G30 G31 Battery Positive Terminal Pint Jump Start 9339823

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5Q0959392B

Audi A3 S3 8V Door Control Module Front Passenger Side Left N/S 5Q0959392B

PLN 75.95

Free delivery: Jul 16

If paid before 14:00

Part no. CPLA-19E906-AA

Land Rover Range Rover L405 Air Quality Sensor CPLA-19E906-AA

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W5945070A-1

Audi A4 B9 Rear Tail Light Lamp Wire Connector Plug Outer Right O/S 8W5945076A

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. A2749062100

Starter Motor Mercedes W213 C238 C253 Engine A2749062100

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. A9079001605

Mercedes W907 Central Gateway Control Unit Module Relay ECU A9079001605

PLN 1,424.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2059006502

Mercedes W205 Front Seat Adjustment Control Module Passenger Side A2059006502

PLN 265.95

Free delivery: Jul 16

If paid before 14:00

Part no. 1439740

BMW X5 E53 Cable Starter-Base B Electrical Cable Wiring 3.0i M54 Petrol 1439740

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 5Q0971230HF

Volkswagen Passat B8 Alternator Wiring Loom Harness 2.0 TDI Diesel 5Q0971230HS

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2118210197

Mercedes E-Class W211 Rear Door Wiring Loom Harness Rubber Grommet A2118210197

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 7288993-2

BMW X5 E70 Headlight Headlamp Wiring Harness Cable Plug Left N/S 7288993

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. A0009051816

Mercedes C118 W167 W177 W206 C247 Front Windscreen Camera Assist A0009051816

PLN 284.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7520019

Mini Cooper One R50 Petrol W10 W11 Engine Control Unit DME 7520019 Automatic

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 1T0035577AE

VW Volkswagen Touran 1T Aerial Antenna Amplifier Unit Module 1T0035577AE

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 8K0959792E

Audi A4 B8 A5 8T Front Door Module Control Unit Module ECU Left N/S 8K0959792E

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. LR3T-14G087-VG

Ford Transit Mk8 Ranger MK3 Telematics Control Unit Module LR3T-14G087-VG

PLN 621.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2055406304

Mercedes W205 Hybrid Battery Cable Starter Wiring Loom Harness A2055406304

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8638551

BMW F20 F21 F22 F30 F32 LCI Integrated Supply Module Unit 8638551

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5WA937548

Audi A3 8Y Skoda Octavia Mk4 VRS VW Golf Mk8 Battery End Fuse Box 5WA937548

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4H0971142C

Audi A8 D4 Door Card Wiring Loom Cable Harness Rear Right O/S 4H0971142C

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9281717

BMW X5 F15 Camera Kafas Front Windscreen Camera 9281717

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6G9N-17D547-AE

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

PLN 75.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9365819

BMW X5 F15 Wiring Rear Right O/S Door Harness Loom 9365819

PLN 75.95

Free delivery: Jul 16

If paid before 14:00

Part no. BJ32-19G255-AA

Range Rover L405 Amplifier Aerial Receiver Unit Right O/S Upper BJ32-19G255-AA

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. A1664400137

Mercedes W166 AdBlue Tank Reservoir Wiring Harness Loom Cable Wire A1664400137

PLN 408.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2129004114

Door Module Mercedes W204 W212 Rear Left N/S Control Unit A2129004114

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 3Q0907590K

Audi Q3 F3 Lane Assist Module Blindspot Control Unit Left N/S 3Q0907590K

PLN 379.95

Free delivery: Jul 16

If paid before 14:00

Part no. A1725404105

Mercedes R172 Rain Sensor Wiring Harness Cable Loom A1725404105

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 4G0035061J

Audi A7 4G A4 B8 A6 C7 Q5 8R Sat Navi Stereo Radio Audio Unit Player 4G0035061J

PLN 949.95

Free delivery: Jul 16

If paid before 14:00

Part no. KK3T-9K499-FCC

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

PLN 664.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2118704126

Mercedes W221 Door Control Module Right Rear O/S A2118704126

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 03G906021FT

VW Eos 2.0 TDI BMM 140HP Engine Control Unit Module ECU 03G906021FT Manual

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 10723AF

Ford Transit Connect Battery Box Tray Housing Holder Bracket 10723AF

PLN 75.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2229001708

Mercedes W205 Door Control Module Front Left N/S A2229001708

PLN 89.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2059002922

Door Module Mercedes W205 W253 C253 Front Left N/S Control Unit ECU A2059002922

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. NNW504640

Range Rover Velar L560 Differential Locking Module Control Unit NNW504640

PLN 208.95

Free delivery: Jul 16

If paid before 14:00

Part no. A0005456786

Mercedes W205 W213 Fuse Box Protective Bracket Cover A0005456786

PLN 42.95

Delivery: Jul 16 – 17

If paid before 14:00

Part no. 8W0907159D

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

PLN 180.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5Q0971230HH

Audi S3 8V Starter Alternator Wiring Harness 5Q0971230HH

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. AV6N-15K607-AH

Ford Focus Mk3 Motion Alarm Sensor Module Unit AV6N-15K607-AH

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 2383676

Battery Cable BMW F22 Negative Earth Cable Minus Electrical Wire 7625999

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. KK2T-9K499-CKC

Ford Transit Custom Exhaust Emission Control Wiring Harness KK2T-9K499-CKC

PLN 417.95

Free delivery: Jul 16

If paid before 14:00

Part no. 0C8927769AG

Porsche Cayenne 92A Automatic Transmission Control Module 3.0 Diesel 0C8927769AG

PLN 465.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9283526

Mini Navigation Head Unit R55 R56 R57 LCI R60 R61 CHAMP 2 Sat Nav DAB 9283526

PLN 902.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8T0971029AG

Audi A5 8T Coupe Front Door Wiring Loom Harness Driver's Side 8T0971029AG

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4G0909144Q

Audi A6 C7 Allroad Electric Power Steering Rack Motor Module Unit 4G0909144Q

PLN 1,994.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7790996

Mini One D R50 W17 Base B+ Battery Terminal Point Engine Compartment 7790996

PLN 47.95

Delivery: Jul 16

If paid before 14:00

Part no. YTA500521

Land Rover L319 Positive Terminal HV Battery Lead Cable Wire Harness YTA500521

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2389000705

Mercedes C118 W177 W205 Bluetooth Control Module Mobile Phone ECU A2389000705

PLN 379.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8S0035020B

Audi TT 8S FV Audio Multimedia Radio CD Player MIB2 Head Unit 8S0035020B

PLN 2,374.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7CC971120AK

Volkswagen Crafter Mk2 SY Front Door Wiring Loom Harness Left N/S 7CC971120AK

PLN 284.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9193757

BMW E60 E63 E91 E92 On Board Navigation Display Monitor Screen 8,8" 9193757

PLN 379.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9290013

BMW X3 F25 Footwell Light Control Unit Module ECU FRM III TEMIC 9290013

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9317866

BMW 3 Series F30 330e Hybrid Battery Accumulator Bracket Holder Mount 9317866

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2469067100

Mercedes W176 W246 C117 Fuse Relay Box Control Unit Module A2469067100

PLN 151.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2049005903-1

Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005903

PLN 759.95

Free delivery: Jul 16

If paid before 14:00

Part no. FW93-11B608-AD

Range Rover Sport L494 Multimedia Radio CD Player Head Unit FW93-11B608-AD

PLN 70.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7792544

Mini One D Diesel W17 1ND 88HP Engine ECU Control Unit DDE 7792544 Manual

PLN 75.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8605456

Engine Wiring BMW F21 F30 LCI F36 N20 Loom Module Harness Cable 8605456

PLN 180.95

Free delivery: Jul 16

If paid before 14:00

Part no. A1729060105

Mercedes SLK R172 Rear Fuse Box SAM Relay Control Unit Module A1729060105

PLN 332.95

Free delivery: Jul 16

If paid before 14:00

Part no. 2K5959655D

Volkswagen Caddy 2K Air Control Unit Module Controller 2K5959655D

PLN 754.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8590041

BMW G30 G31 B47 Diesel Glow Heater Plug Engine Wiring Loom Cable 8589786

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2139005613

Mercedes W213 Front Door Module Right O/S Control Unit A2139005613

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. HJ32-14K016-BA

Land Rover Discovery Sport L550 Storage Fuse Box Schema Cover Cap HJ32-14K016-BA

PLN 75.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9297897

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

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8612582

BMW F45 Mini F60 HV Accumulator Battery Positive B+ Cable 8612582

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 0390203255

Seat Adjustment Motor Mercedes W221 Front Seat Motor Actuator 0390203255

PLN 56.95

Delivery: Jul 16

If paid before 14:00

Part no. 7640755

BMW F20 F21 F30 F31 N13 116i 316i 136HP ECU Kit DME 7640755 Manual

PLN 854.95

Free delivery: Jul 16

If paid before 14:00

Part no. FK72-18808-AC

Land Rover Discovery L550 Boot Trunk Subwoofer Rear Bass Speaker FK72-18808-AC

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4G0907589F

Audi A7 4G 3.0TDI CVUA 320HP Quattro Engine Control ECU Kit 4G0907589F Automatic

PLN 2,754.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2208100112

Mercedes W220 Sun Visor Mount Loom Harness Wire Cable A2208100112

PLN 66.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W0907468J

Audi A4 B9 Gateway Control Unit Module ECU 8W0907468J

PLN 1,899.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8K0959793H

Audi A4 B8 A5 8T Door Module Control Front Unit ECU 8K0959793H

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 3Q0959435P

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

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 6819336

BMW F20 F21 F22 F30 F31 F32 F33 Fuse Box Body Control Unit Module REM V5 6819336

PLN 123.95

Free delivery: Jul 16

If paid before 14:00

Part no. M8A2-10C820-AC

Land Rover Discovery Sport L550 Battery Ventilation Pipe Hose M8A2-10C820-AC

PLN 104.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8859307

BMW X1 U11 Control Module Unit ECU 8859307

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7L0941824A

Volkswagen Touareg 7L Fuse Box Module Electrical Relay Control Unit 7L0941828A

PLN 80.95

Free delivery: Jul 16

If paid before 14:00

Part no. 99661826500

Porsche Boxster 986 Tilt Angle Sensor Control Unit Module 99661826500

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7576921

Mini Cooper R55 R56 R57 Mitsubishi Engine Alternator Generator Petrol 7576921

PLN 151.95

Free delivery: Jul 16 – 17

If paid before 14:00

Part no. A2535400701

Mercedes A238 M276 Engine Alternator Wiring Loom Harness A2535400701

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2125406505

Mercedes W212 Door Wire Wiring Loom Front Right O/S A2125406505

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 02E911023J

Audi TT 8J Petrol Engine Starter Motor 2.0 TFSI BWA 02E911023J

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2129003508

Mercedes W207 W906 Fuel Pump Control Unit Module ECU A2129003508

PLN 123.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8K0971035C

Audi A4 B8 Door Wiring Harness Cable Loom Front Driver's Side 8K0971035C

PLN 170.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5Q0959592D

Door Module Audi A3 8V VW Golf 7 Seat Leon 3 Front Right O/S 5Q0959592D

PLN 60.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5B5FF36

BMW F70 F74 G60 X1 U11 Front Windscreen Camera Control Unit Module 5B5FF36

PLN 1,329.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9128573

BMW 1 Series E87 LCI E87N Cable Set PDC Front Wiring Loom 9128573

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. CK52-14301-AC

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

PLN 66.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8X0907159C

Audi A1 8X Impact Sound Actuator Control Module 8X0907159C

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. F30-SCREEN-3

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

PLN 949.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6906600

Fuse Box Mini Cooper R50 R52 R53 JCW Housing 1509011

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. YIK500022

Land Range Rover L322 Sat Nav Radio Display Screen Head Unit Media ECU YIK500022

PLN 474.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6807322

Positive Cable BMW F90 M5 G30 Battery Wire Lead Underfloor Wiring 6807323

PLN 161.95

Free delivery: Jul 16 – 17

If paid before 14:00

Part no. A2055450700

Mercedes W205 W213 C253 Battery Busbar Cap Cover Trim Left N/S A2055450700

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 9390160

BMW X3 F25 LTE Compensator Phone System Holder Bracket Mount 9390160

PLN 127.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2054406633

Mercedes C205 Door Wiring Front Door Left N/S wiring Harness A2054406633

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

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