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.

More information

Find it faster

Match to your vehicle

Make

Audi A5 F5 Rear Outer Taillight Lamp Wiring Loom Cable Left N/S 8W6945091N

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0971104M

Audi A4 B9 A4 S4 8W Rear Bumper PDC Parking Sensor Wire Harness Loom 8W0971104M

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0951253E

Audi Q7 4M Engine Relay 4 Pin 40A 4H0951253E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. HPLA-14D617-BD

Range Rover L405 Front Door Control Module Unit Left N/S HPLA-14D617-BD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. MK83-19J270-AC

Land Range Rover Velar L560 Noise ECU Module Pedestrian Protect MK83-19J270-AC

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. L9W3-14D550-AA

Land Rover Range Rover Velar L560 EV Battery Cooling Cooler Fan L9W3-14D550-AA

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P5971693D

Porsche Cayenne 92A Rear Door Wiring Harness Cable Left Right N/O/S 7P5971693D

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0907503-5

Audi RSQ3 F3 Headlights Leveling Lamp Height Sensor Headlamp Unit 5Q0907503

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9418460

BMW G30 G31 PDC Module Parking Assistant Control Unit USS VA03 HIGH 9418460

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6938226-1

BMW E90 E90N E91 E91N LCI M3 Wiring loom rear door left right 6938225

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9303637

BMW Z4 E89 AUX USB Smartphone Connection Lead Cable Wiring 9303637

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8J0971085A

Audi TT TTS 8J Rear Bumper PDC Parking Sensor Wiring Loom Harness 8J0971085A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8373700-3

BMW E60 E63 E87 E90 E91 5X Relay Make Contact White Green Set 8373700

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 000051473C-2

Volkswagen VW Polo 6R Bluetooth Hands-free TPK Connection Kit Set 000051473C

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1S0919275D-MOG

Audi Q3 8U PDC Parking Distance Control Sensor Monsoon Grey Metallic - X7R

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 57A971095C

Skoda Karoq NU7 Mk1 Front Bumper Wiring Loom Harness Parking Sensors 57A971095C

€118.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2098209610

Mercedes CLK W209 Convertible Alarm Anti Theft System Control Unit A2098209610

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9810737980-1

Citroën Relay 35 L Fuel Pump Carrier Bracket Holder Housing Cover 9810737980

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959795D

Audi A4 S4 8K A5 Q5 Rear Door Control Module Unit Left Right N/O/S 8K0959795D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7350697-2

BMW X1 F48 Rear Light Lamp Trunk Tailgate Left N/S Loom Harness Wiring 7350697

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 0C8927750D

VW Touareg 7P Automatic Transmission Module Control Unit ECU 3.0 TDI 0C8927750D

€332.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0971688AG

Audi A4 B8 Door Wiring Harness Loom Rear Right O/S Cabling 8K0971688AG

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0959354

Volkswagen Golf 7 Audi A3 8V Front Air Module Crash Impact Sensor Unit 5Q0959354

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR070686

Land Rover Discovery Sport L550 Starter Motor 2.0 Diesel GJ32-11001-AD

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. MB3T-14301-BD

VW Amarok Mk2 Battery Negative Minus Cable Connector Wiring Loom MB3T-14301-BD

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X0971679K

Audi A1 8X Dash Panel Glove Box Light Wiring Loom Harness Wire 8X0971679K

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FR3T-14D644-CF

Ford Mustang Mk6 Headlight Module Control Unit ECU FR3T-14D644-CF

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6840094

BMW X1 F48 Rear Door Wiring Loom Harness Cable Left N/S 6840096

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9153136

BMW F01 F02 F03 LCI Holder Bracket Control Telematics Unit 9153136

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4K0906121A

Audi A6 C8 Fuel Pump Control Unit Module Controller 3.0 Diesel 4K0906121A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4L0959760-1

Audi Q7 4L Front Memory Adjustment Module Control Left Right N/O/S 4L0959760

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. JB3T-14D068-CB

Ford Ranger Wildtrak Mk6 Fuse Box Relay Control Unit Module JB3T-14D068-CB

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6Q6945095AA-2

Volkswagen Polo 9N Rear Tail Light Left N/S Cable Wire Harness Loom 6Q6945095AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3R0971073

Seat Exeo 3R Front Frame Panel Wiring Harness Cable 3R0971073

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0937085D

Volkswagen Golf MK6 5K Body Control Module BCM Comfort Unit 1K0937085D

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7928587

BMW F44 G20 G30 Audio Amplifier Sound System Unit Module ECU 7928587

€99.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR028237

Range Rover Evoque L538 Occupancy Sensor Mat Front Pasenger Seat 8X23-14C288-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0863752

Audi A8 D4 Side Skirt Sill Trim Bracket Cover Rear Right O/S 4H0863752

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9X2Q-12A650-P

Jaguar XF X250 Engine Control ECU 3.0 Diesel 241HP Automatic 9X2Q-12A650-P

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0035503E

Audi A4 B8 Transmitting Receiving Unit Road Toll System 4F0035503E

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0225452126

Mercedes C253 W203 W211 W213 Exhaust Gas Temperature Sensor Valve A0225452126

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5E3907159F

Skoda Octavia IV Impact Sound Control Module Unit ECU 5E3907159F

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0035225H

Audi A8 D4 Aerial Antenna Amplifier Diversity 04S 4H0035225H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2201L720P

Audi A4 B8 A5 8T Android Auto Carplay Display Screen 4+64 2201L720P

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6R0971537H

Audi A1 8X Negative Battery Terminal Cable Wiring 6R0971537H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DPLA-14D620-AB

Range Rover Sport L405 Rear Door Control Module Unit Right O/S DPLA-14D620-AB

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1H5951253

Volkswagen Touareg 7L Relay Alternator Alarm Black 4 Pin 12V No 143 1H5951253

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059007615

Module Mercedes W205 Air Conditioning Control Module A2059007615

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2514401909

Mercedes W164 W251 Wiring Loom Cable Harness Door Front Left Right A2514401909

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3B0K-40104

Ford Ranger Mk6 Additional Fuse Box Relay Box Module Unit TKE4180109A

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0907355C

Audi A7 4G A8 D4 Ad Blue Control Unit Module ECU 3.0 TDI Diesel 4H0907355C

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1185402504

Mercedes C118 Door Harness Rear Left N/S Door Wiring Loom A1185402504

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4B0959643E

Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 4B0959643E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0971845A-1

Porsche Macan 95B Fuse Relay Box Power Distribution 8K0971845A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q4959393K

Volkswagen Crafter TR Front Door Control Module Unit Driver's Side 5Q4959393K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1T2971858G

VW Volkswagen Caddy 2K Comfort Control Unit Holder Retainer Support 1T2971858G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. KK2T-19L540-AD

Ford Transit Custom Mk8 Sliding Side Door Wiring Loom Left N/S KK2T-19L540-AD

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AV1T-14026-AAB

Ford B-MAX Door Wiring Frame Assy Jumper Rear Left N/S AV1T-14026-AAB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DV61-10718-AA

Ford Transit Connect Mk2 Battery Tray Holder Bracket Clamp DV61-10718-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9153418-1

BMW 5 Series F10 F11 B Plus Distributor Box Front Battery Cable Unit 9153418

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H22-14A614-EA

Land Rover Discovery 4 Driver's Seat Memory Wiring Loom Harness 4H22-14A614-EA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 95561263000

Porsche Cayenne 9PA Rear Door Wiring Loom Harness Left Right N/O/S 7L5971694

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK72-14632-BCD

Land Rover Discovery Sport L550 Door Wiring Rear Right O/S FK72-14632-BCD

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR072286

Land Rover Discovery Sport L550 Tailgate Opening Sensor Upper FK72-14E108-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DWM500100

Range Rover Sport L320 Battery Tray Holder Mount Bracket Right O/S DWM500100

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P6035552A

VW Touareg 7P Antenna Amplifier Signal Booster Module Rear Right O/S 7P6035552A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04C903023K

Volkswagen Golf MK 7 Audi A3 8V 1.4 Alternator Petrol 04C903023K

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8U0971036

Audi Q3 8U Door Loom Wiring Harness Cable Front Passenger Side N/S 8U0971036

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8U0955559

Audi A1 8X A3 8V Windscreen Rain Sensor Control Unit 8U0955559

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7636937

Ping Sensor BMW F20 F31 LCI Mini F55 F56 Engine Block Knock Sensor 7636937

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5QA919294E

Volkswagen Golf Mk7 5G PDC Parking Sensor Control Module ECU 5QA919294E

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7PP905852C

Porsche Cayenne 92A Steering Column Locking Control Unit Module 7PP905852C

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6394405009

Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6394405009

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2048208526

Mercedes W204 Parking Sensor Parktronic Display Control A2048208526

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5J0951172

Skoda Fabia 5J Interior Roof Alarm Sensor Ultra Sonic Module 5J0951172

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9219646

BMW X5 E70 Front Bumper Park Sensor PDC Wiring Harness Cable Loom 9219636

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129005401

Mercedes W207 Fuse Junction Box Relay Control Unit Module SAM A2129005401

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6461509777-2

Mercedes C209 Engine Control ECU 2.1 Diesel 150 HP A6461509777 Automatic KIT

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7545165

BMW E87 E90 116i 316i Petrol N45 Wire Wiring Harness Engine Gearbox Mod Loom

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0035507L

VW Volkswagen Scirocco Mk3 Roof Top Antenne Control Unit Module 1K0035507L

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. C1B1-12A650-FH-1

Ford Fiesta Mk7 1.0 Ecoboost SFJA 100HP Engine ECU Kit C1B1-12A650-FK Manual

€208.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8XA035754B

Audi A1 S1 8X Sat Nav MMI 3G+ Head Unit Module 8XA035754B

€569.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P6907441G

Volkswagen Touareg 7P Camera Electronic Control Unit Module 7P6907441G

€360.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8582280-3

BMW F20 F21 116d N47N 116HP ECU Kit DDE 8582280 + Key + Lock + FEM Manual

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8E1971029AH

Audi A4 B7 Front Door Wiring Harness Loom Wire Passenger Side 8E1971029AH

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009008718

Climate Control Module Mercedes W205 W213 Air Conditioning A/C Unit A0009008718

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6935600

BMW E81 E82 E87 E90 E91 PDC Parking Ultrasonic Sensor Sonora Metallic 6935600

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1725403405

Mercedes R172 OM651 Diesel Alternator Wiring Harness Cable Loom A1725403405

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7434272

BMW F20 F21 F30 F31 Headlight Control Module Ballast Unit 7429127

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959792N

Audi Q5 8R Door Lock Control Module Unit ECU Front Left N/S 8K0959792N

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9326085

BMW Gran Turismo F34 Front Parking Sensor PDC Wiring Loom Harness 9326085

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 899900F011

Toyota Verso R2 Smart Key ECU Receiver Control Module Unit 89990-0F011

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7588405

BMW 3 7 Series F30 LCI G11 Hybrid Battery Charging Connector Plug Unit 8605862

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0907383G

Volkswagen Touran 5N Towbar Towing Control Unit Trailer Detection 1K0907383G

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7558911

BMW 1 Series E81 E82 E87N E88 NOx Cable Wiring Petrol 7558911 12517558911

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 83A907159

Audi Q3 RSQ3 F3 Body Sound Impact Control Module ECU 83A907159

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8642705-1

Mini Cooper F56 B38 136HP Engine Control ECU DME Kit 8642705 Automatic

€227.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9361589

BMW 2 F45 Active Tourer Door Wiring Loom Harness Cable Driver's Side 9361600

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0907412

Audi A8 D4 Ambient Lighting Control Module Unit ECU 4H0907412

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

...

Showing 8317-8415 of 22939 products