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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BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. A2055402750

Mercedes W205 C253 Hybrid Fuse Control Unit Module Distribution Box A2055402750

PLN 75.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9350336

BMW F06 F12 F13 F80 Mini F56 Radio CD Player Head Unit 9395949

PLN 237.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9286952

BMW X3 F25 X4 F26 Central Gateway Control Module ECU Unit 9286952

PLN 80.95

Free delivery: Jul 15

If paid before 14:00

Part no. 6807332

BMW G30 530e 530eX B48X Hybrid Battery Wiring Positive Under Floor Cable 6807332

PLN 165.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9181455

BMW X1 Series E84 Antenna Aerial Noise Suppression Filter 9181455

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. A2045458601-1

Mercedes W204 Fuse Box Rear Relay Control Unit Module SAM A2045458601

PLN 569.95

Free delivery: Jul 15

If paid before 14:00

Part no. A4475406777

Alternator Wire Mercedes Vito W447 Battery Alternator Cable A4475406777

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8574095-2

BMW F20 F21 F30 116d 316d Diesel N47N Engine ECU DDE 8574095 Key Lock FEM Manual

PLN 949.95

Free delivery: Jul 15

If paid before 14:00

Part no. 6F9971251B

Seat Arona FR KJ7 Rear Parking Sensor Wiring Loom Harness Cable 6F9971251B

PLN 218.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8S0971230AC

Audi TTS FV Alternator Wire Wiring Cable Loom Harness 8S0971230AC

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. A2129018508

Mercedes W212 Air Bag Control Unit ECU AirBag Sensor Module A2129011105

PLN 151.95

Free delivery: Jul 15

If paid before 14:00

Part no. A1765405109

Mercedes C117 X156 W176 M133 AMG Cruise Control Radar Adapter Wiring A1765405109

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. BJ32-13K031-AC-1

Range Rover Evoque L538 Headlight Control Module Unit BJ32-13K031-AC

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. A2188205061-1

Mercedes C218 Front Headlight Wiring Harness Cable Right O/S A2188205061

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. A2059064405-2

Mercedes S205 Estate Rear Headlight Wiring Harness Cable Left N/S A2059064405

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 8R0907401J

Audi A5 8T Q5 8R 3.0 TDI CCWA 240HP Quattro Engine ECU 8R0907401J Automatic

PLN 617.95

Free delivery: Jul 15

If paid before 14:00

Part no. 918545-102

BMW F11 Wiring Cable Loom 918545-102 767832-113

PLN 85.95

Free delivery: Jul 15

If paid before 14:00

Part no. A2469007314-1

Mercedes CLA C117 Central Display Screen Multimedia Sat Nav Unit A2469007314

PLN 108.95

Free delivery: Jul 15

If paid before 14:00

Part no. A2118203042

Mercedes E-Class W211 S211 Front Right Door O/S Window Lifter Motor Regulator

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. CX-DH801N

Panasonic 8 Disc DTS MP3 Radio Music Audio DVD Changer CX-DH801N

PLN 275.95

Free delivery: Jul 15

If paid before 14:00

Part no. A2741501802

Mercedes W213 Engine Wiring Harness Cable Loom A2741501802

PLN 759.95

Free delivery: Jul 15

If paid before 14:00

Part no. 6799083

Control Unit BMW F10 F11 X3 F25 Parking Brake Handbrake Module EMF 6799083

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 3D0959759B

VW Volkswagen Phaeton 3D Seat Control Unit ECU Front Passenger Side 3D0959759B

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. CM5T-14B006-AA

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

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 9389286

Door Wiring Mini Clubman F54 Front Passanger Side N/S Door Harness 9389286

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5A2D558

BMW X3 G01 G20 G21 G30 G31 Audio Receiver DAB ECE Control Module 5A2D553

PLN 949.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4G5971693A

Audi S6 C7 Door Trim Panel Wiring Wire Harness Cable Rear Left N/S 4G5971693A

PLN 284.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8E0035456D

Audi A4 B8 Telephone Aerial Antenna Signal Amplifier Module 8E0035456D

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 5GV051629E

Volkswagen Smart DataPlug Bluetooth OBD Smartphone Connect Dongle 5GV051629E

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8W0959595E

Audi A4 B9 Rear Door Control Module ECU Left Right N/O/S 8W0959595E

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9186655

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186655

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 9381113

Air Con Module BMW F20 F30 F31 Mini F55 F56 Air Conditioning A/C Unit 9381113

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5A847B3

BMW X1 U11 Battery Plus Positive Wiring Harness Cable B38X 5A847B3

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5Q0906093A

Audi A3 8V 8Y VW Golf 5G Fuel Pump Control Unit ECU 2.0 TSI Petrol 5Q0906093A

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 9354758

BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK Mid 9354758

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9214243

BMW F10 F11 Battery B+ Engine Compartment Terminal Point 9214243

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. A6549009400-3

Mercedes W907 315CDI OM654.920 Engine Unit Module ECU Kit A6549009400 BCM + Key

PLN 1,424.95

Free delivery: Jul 15

If paid before 14:00

Part no. GK62-14E108-AB

Range Rover Sport L494 Rear Tailgate Hands Free Motion Sensor GK62-14E108-AB

PLN 165.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9360501-3

BMW F40 F48 Mini F56 Distribution Fuse Box Rear Electric Power Fuse Box 9360501

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5FJ919606A

Seat Ibiza KJ1 Dashboard Onboard Screen Monitor Touchscreen Display 5FJ919606A

PLN 427.95

Free delivery: Jul 15

If paid before 14:00

Part no. A0009008709

Mercedes W213 Tyre Pressure Control Module Unit A0009008709

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 03L906018JG-1

Audi A5 8T 2.0 TDI CGLC 177HP Diesel Engine Control ECU Kit 03L906018JG Manual

PLN 617.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9438239

BMW X4M F98 A/C Air Condition Climate Control Unit ECU 9439239

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5G0035820A

Volkswagen Golf Mk7 Infotainment Multimedia Head Unit 5G0035820A

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 7C0971157K

VW Volkswagen Crafter Sy Starter Alternator Loom Harness Wire Cable 7C0971157K

PLN 351.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9164350

BMW E63 E64 Negative Battery Cable Minus Pole IBS 9164350

PLN 322.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4H0971727B

Audi A8 4H D4 Quattro Fuel Tank Pump Wiring Loom Harness 4H0971727B

PLN 66.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K0959793S

Audi A4 B8 Front Door Control Module Unit ECU 8K0959793S

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 0AD927755L

Volkswagen Touareg 7L Transfer Box Control Unit Module ECU Automatic 0AD927755L

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 7248911-1

BMW F20 F21 F22 F30 F31 Fog Light Lamp Wiring Harness Plug Left N/S 7248911

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. GJ32-14D374-AB

Range Rover Evoque L538 Air Module Control Unit GJ32-14D374-AB

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8576341-1

BMW F20 F30 F31 116d 316d 116HP N47N Engine ECU Control Unit DDE 8576341 Manual

PLN 284.95

Free delivery: Jul 15

If paid before 14:00

Part no. 6837092

BMW G30 G12 Fuse Relay Box Rear Trunk Power Distribution B + Box Basis 6837092

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9268710-1

BMW F01 Display Screen On-Board Central Information Monitor 10,25" 9241819

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4H0907468AE

Audi A8 D4 Gateway Control Module Diagnostic Interface BUS 4H0907468AE

PLN 1,020.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9124585

BMW 1 3 Series E87 E90 Front Rear PDC Ultrasonic Parking Sensor Sedonarot Red

PLN 66.95

Free delivery: Jul 15

If paid before 14:00

Part no. 6868253

BMW F20 F21 F30 F31 ECU ICM Control Unit Module Airbag ECU 6868253

PLN 66.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9365764

Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav High Control Module 9365764

PLN 949.95

Free delivery: Jul 15

If paid before 14:00

Part no. N1WT-14F514-PFD

VW Amarok Mk2 Front Door Wiring Harness Keyless Left Right N/O/S N1WT-14F514-PFD

PLN 123.95

Free delivery: Jul 15

If paid before 14:00

Part no. 2095989

Ford Focus Mk3 Rear Door Control Module Door Left Right N/O/S BV6N-14B532-BJ

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. LR097687

Land Rover DISCOVERY SPORT L550 Front Bumper Wiring Loom Harness JK7214369GA

PLN 759.95

Free delivery: Jul 15

If paid before 14:00

Part no. A0009005602

Mercedes W204 W212 Control Unit AMG Drive Select Module ECU A0009005602

PLN 569.95

Free delivery: Jul 15

If paid before 14:00

Part no. 7P6907357

Volkswagen Touareg 7P Front Lamp Headlight Range Control Module ECU 7P6907357

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 6801326

BMW F15 Door Wiring Harness Loom Cable Front Left N/S 6801453

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. LR080292

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

PLN 137.95

Free delivery: Jul 15

If paid before 14:00

Part no. A2115452647

Bracket Mount Mercedes W211 W219 Control Unit Module SAM Holder A2115452647

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 83A971104AP

Audi Q3 RSQ3 F3 Rear PDC Parking Sensors Wiring Loom Harness 83A971104AP

PLN 332.95

Free delivery: Jul 15

If paid before 14:00

Part no. A0038201926

Mercedes W221 Door Crash Impact Sensor Rear Left Right N/O/S A0038201926

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 6953424-2

BMW Z4 Series 2 E85 E86 Positive Battery Cable Plus Pole Lead 6953424

PLN 161.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8P0035464

Audi A3 S3 8P Audio Amplifier Mount Bracket Holder Right O/S 8P0035464

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8707750

BMW F20 F21 F22 F23 F87 M2 Body Domain Controller BDC Module FEM 8707750

PLN 1,234.95

Free delivery: Jul 15

If paid before 14:00

Part no. YIE500081PVJ

Rover Sport L320 Sat Nav Display Screen Multimedia YIE500081PVJ

PLN 113.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8508208-1

BMW F10 F11 520d 530d N47N N57 E-Box Control Unit Box 8508208

PLN 104.95

Free delivery: Jul 15

If paid before 14:00

Part no. 6977398

BMW 5 6 Series E60 E61 E63 R55 R56 Sensor B-pillar Airbag 65776977398 6977398

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. J8A2-16C826-AB

Land Range Rover Velar L560 Bonnet Gas Strut Left Right N/O/S J8A2-16C826-AB

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. A2135402870

Ground Cable Mercedes C238 Fuse Box Wire Prefuse Box Wiring A2135402870

PLN 141.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4F5035225AJ

Audi A6 C6 Aerial Antenna Amplifier Right O/S FM Booster Unit 4F5035225AJ

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 7616500

BMW E90 E91 E92 N52 N52N Engine Starter Motor Valeo 7616500

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. DH52-13W029-AB

Land Rover Freelander 2 L359 Headlight Wiring Front Right O/S DH52-13W029-AB

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. DH52-18C815-BC

Land Rover Freelander 2 L359 Radio Head Unit DAB CD Player DH52-18C815-BC

PLN 474.95

Free delivery: Jul 15

If paid before 14:00

Part no. M8D2-14407-AB

Range Rover Evoque L551 AdBlue Tank Wiring Loom Harness Cable M8D2-14407-AB

PLN 227.95

Free delivery: Jul 15

If paid before 14:00

Part no. 94860410600

Porsche Cayenne 9PA Engine Starter Motor Unit 94860410600

PLN 161.95

Free delivery: Jul 15

If paid before 14:00

Part no. 9396828

Antenna Module BMW F06 F12 F13 E63 Rear Multi-band Antenna GPS TEL Right 9396828

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 2751445

Mini Cooper One R56 R55 R57 R58 LCi Retaining plate fuse box SPEG 2751445

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 8M5T-19C112-AN

Ford Galaxy Mk2 Bluetooth Electronic Control Module Unit ECU 8M5T-19C112-AN

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 6772742

BMW 3 4 Series F80 M3 F82 M4 Control Unit Active Sound Design 2622362

PLN 522.95

Free delivery: Jul 15

If paid before 14:00

Part no. AH22-18N378-AB

Land Rover Discovery 4 L319 Battery Tray Holder Trim Right O/S AH22-18N378-AB

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. HPLA-14D618-BD

Range Rover L405 Door Control Unit Module Front Driver's Side HPLA-14D618-BD

PLN 137.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5Q4959593K

Seat Ateca Door Module Control Unit Front Driver's Side Door 5Q4959593K

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. ROSEN-Q74L-SEAT-SET

Audi Q7 4L Headrest Screen DVD Player Set Digital

PLN 1,424.95

Free delivery: Jul 15

If paid before 14:00

Part no. A2055401516

Mercedes W205 Battery Cable Negative Lead Wiring Harness Control A2055401516

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5A57FC8

BMW F20 F21 F22 F30 X3 F25 M Sport Radio Remote Key Fob Control 868 Mhz 5A57FC8

PLN 237.95

Free delivery: Jul 15

If paid before 14:00

Part no. A0038202926

Mercedes W164 X164 W221 SRS Airbag Impact Crash Sensor A0038202926

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 1K8971104S

Volkswagen Scirocco Mk3 Rear Number Plate Wiring Harness Cable Loom 1K8971104S

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 2447525

Telematics Module BMW F21 Bluetooth Control Unit ECU 2447525

PLN 427.95

Free delivery: Jul 15

If paid before 14:00

Part no. 06A903141P

Audi A3 8L Alternator Tensioner Pulley Ancillary Bracket 1.8T APY 06A903141P

PLN 75.95

Free delivery: Jul 15

If paid before 14:00

Part no. EJ32-14B673-AB

Land Rover Evoque L538 Tailgate Control Module Unit ECU J32-14B673-AB

PLN 161.95

Free delivery: Jul 15

If paid before 14:00

Part no. F1ET-14D624-LB

Ford Focus Mk3 Front Door Wiring Loom Cable Left N/S NSF F1ET-14D624-LB

PLN 85.95

Free delivery: Jul 15

If paid before 14:00

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