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 A5 8T Onboard Comfort Supply Control Module Unit ECU 8K0907063AC

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0035666Q

Audi A8 D4 Multimedia Radio Audio Control Module 4H0035666Q

€208.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8969005040

Toyota Avensis T270 Power Management ECU Control Module 1.8 Petrol 8969005040

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1454407

Ford Ranger Mk4 Additional Fuse Box Cover Lid Top Housing 6M34-14A076-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0907468AB

Audi A4 B8 2.0 TDI CAGA Gateway Interface Control Module Unit ECU 8T0907468H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0959793F

Door Module Audi A5 8T A4 B8 Control Front Right O/S Unit 8T0959793F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR060166-1

Land Rover Discovery 4 Air Suspension Compressor Wiring Cable CH22-12B654-AA

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 0332019151-1

Porsche Cayman 987 Kia Sportage Fuel Pump Multifunction Relay Set 0332019151

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH22-12A610-GA

Land Rover Sport L320 Engine Wiring Bracket Holder Carrier AH22-12A610-GA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK72-14A577-CD

Land Rover Discovery L550 Seat Wiring Loom Rear Left N/S 2nd Row FK72-14A577-CD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2628199

Ford Transit Connect Mk2 Radio Stereo Sat Nav Head Unit Module 2628199

€151.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. MB177300-4800

Jaguar XK8 X100 A/C Air Conditioning Climate Control Module ECU MB177300-4800

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0959595N

Audi A4 B9 Door Module Rear Right Left N/O/S Control Unit 8W0959595N

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A90877-1

BMW F74 Gran Coupé Battery Positive Plus Cable Underfloor Wiring Harness 5A90877

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9258343

BMW X6 E71 Z4 E89 CD DVD Changer Multimedia Player Module Unit M50d N57X 9258343

€146.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A54F89

BMW F74 X1 U11 X2 U10 Battery Tray Plate Mount Bracket 5A54F89

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0971663A

Audi A8 D4 Front Door Wiring Harness Loom Cable Left N/S 4H0971663A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6938226-2

BMW 3 Series 2 E90 E91 LCI M3 Wiring Loom Rear Door Left Right 6938226

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6990089

BMW 6 X3 Series E63 E83 Radio Antenna Amplifier Suppression Filter

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2124406207

Negative Cable Mercedes W212 Battery Earth Wiring Loom A2124406207

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9259468

BMW X3 F25 Fuse Box Power Distribution Control Unit Box Rear 9259468

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6512012009

Alternator Support Bracket Mercedes W212 OM651 Belt Tensioner Holder A6512012009

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1636880035-1

Mercedes-Benz M-Class ML W163 1 Fuse Box Relay Lid Cover Trim A1636880035

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9289679

BMW X5 F15 X6 F16 Antenna Amplifier Control Unit Module 9289679

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1Q0945094C-1

Volkswagen Eos 1F Rear Tail Light Lamp Wiring Cable Inner Right O/S 1Q0945094C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2S6T-14A073-AC

Ford Transit Connect Fuse Box Power Distribution Junction Relay 2S6T-14A073-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2185408907

Mercedes CLS C218 Front Dashboard Console Wiring Loom Harness A2185408907

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. L8B2-19L300-PV

Range Rover Velar L560 Navigation Sat Nav Radio Head Unit L8B2-19L300-PV

€854.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 52234117

Vauxhall Movano C Battery Wiring Harness Cable Alternator 52234117

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6936649-3

BMW 1 3 X1 SERIES 3 E81 E82 E84 E87 E88 E90 E91 E92 Power distribution box

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9423398

BMW X1 F48 X2 F39 B47 AdBlue SCR Control Unit Module ECU 9423398

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3452285-2

BMW X3 E83 Boardmonitor Central Information Display Screen 6.5" 3452285

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR008045

Land Rover Freelander 2 Rear Door Wiring Loom Harness Left N/S 7G92-14240-BBG

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5H0868159

Volkswagen Golf R CD1 Door Speaker Grille Cover Rear Left N/S 5H0868159

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8582190-2

BMW F10 LCI 535d N57Z 313HP Engine Module ECU DDE Kit CAS4 Key 8582190 Automatic

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2045403850

Mercedes W204 SAM Fuse Prefuse Box Relay Control Unit A2045403850

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CPLA-11A059-AA

Range Rover L405 Starter Motor Heat Shield Plate Cover CPLA-11A059-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CX23-14F423-AB

Jaguar Xf X250 Positive Battery Wiring Cable Loom Harness CX23-14F423-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DX23-19G490-AD

Jaguar XF X250 Rear Reversing Parking Aid Camera DX23-19G490-AD

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BJ32-971111-BB

Range Rover Evoque L538 Anti Theft Alarm Siren Wiring Cable BJ32-971111-BB

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4X43-14240-AG

Jaguar X-Type X400 Rear Door Wiring Loom Harness Left Right N/O/S 4X43-14240-AG

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR034465

Land Range Rover Sport L494 Oil Level Sensor Wire Harness Plug 9H2Q-6C845-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A20551

Mini F54 F55 F56 F60 ECU Body Domain Controller BDC Module Unit 5A20551

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DH52-14A076-CA

Land Rover Freelander 2 L359 Fuse Box Relay Cover Cap DH52-14A076-CA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DPLA-70722-AB

Land Rover Discovery Sport L550 Sim Card Reader Module Unit ECU DPLA-70722-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. HJE9680AE

Jaguar XK8 X100 Air Module Control Unit Module SRS HJE9680AE

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LJC-2410-DA

Jaguar XK8 X100 ECU Engine Control Module Housing Cover LJC-2410-DA

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0906093F

A4 B9 35 TFSI Fuel Pump Sender Control Relay Module Unit ECU 8W0906093F

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V4T-18C815-AE

Ford Kuga Mk1 Radio CD Mp3 AUX Player Head Unit 6000CD 8V4T-18C815-AE

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9231283-MST

BMW F01 E70 F10 PDC Parking Sensor Ultrasonic Moonstone Metallic X04 9231283 Set

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YWC500350

Land Rover Sport L320 Ultrasonic Alarm System Sensor Unit YWC500350

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9164350

BMW E63 E64 Negative Battery Cable Minus Pole IBS 9164350

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009009405

Mercedes C205 S205 W205 PDC Parking Assist Unit Control Module A0009009405

€104.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2990133

BMW X1 Series E84 Trunk Lid Retaining Bracket Rail Rear Left N/S 2990133

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GK3T14401EWB

Ford Transit Mk8 VI Fuse Relay Box Unit 2.0 Diesel Engine GK3T14401EWB

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9231399

Camera Module BMW F01 F07 F10 F11 F12 Based Assist Systems Control Unit 9231399

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6800903

Mini R50 R52 R53 Steering Wheel Horn Switch Right O/S 6800903

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. EK2T-14B428-RB

Ford Transit Mk8 Bluetooth Multimedia Control Module Unit ECU EK2T-14B428-RB

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8574100-3

BMW X3 F25 30dX N57N 258HP Engine Control ECU Kit DDE 8574100 Automatic

€218.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2K5971692A

Volkswagen Caddy Maxi Mk4 Sliding Door Wiring Loom Harness Right O/S 2K5971692A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2479003216

Mercedes C118 W247 Head Unit Radio Sat Nav Navigation Control Unit A2479003216

€474.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6511598940

Mercedes W205 C253 Battery Harness Wire Holder Bracket Cable Duct A6511598940

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR087661

Land Rover Range Rover Evoque L538 Ignition Smart Key Remote 434 MHZ LR087661

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K8971104S

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q2971111AN

VW Volkswagen Golf Gtd Power Steering Rack Wiring Harness Loom Wire 5Q2971111AN

€118.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0959772

Volkswagen VW Touran 1T Seat Heating Control Unit Module ECU 1K0959772

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5L0971161L

Skoda Yeti 5L Door Window Wire Harness Loom Cable Rear Left N/S 5L0971161L

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P6971693A

Volkswagen Touareg 7P Door Harness Wiring Loom Rear Left Right N/O/S 7P6971693A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8780797

BMW X3 G01 X4 G02 Battery Housing Battery Bracket Holder Box 8780797

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 282754515R

Smart Fortwo C453 Comfort Module Control Unit ECU 282754515R

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GK2T-14B526-CC

Ford Tourneo Custom Power Stabilisation Voltage Control Module GK2T-14B526-CC

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2515450940

Mercedes W251 Fuse Box SAM Module Unit Bracket Carrier Holder A2515450940

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DAN1328

Audi A1 8X DAN1328 Denso Alternator Generator 14V 140A 104211-8380

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9204849

BMW X5 X6 Series E70 E71 Airbag Control Module ECU Unit 9204849

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4K5971693AJ

Audi A6 C8 Door Wiring Harness Loom Rear Left Right N/O/S 4K5971693AJ

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8574095-3

BMW F20 F21 F30 118d 318d Diesel N47N Engine ECU DDE 8574095 +Key +FEM Automatic

€222.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4E0959655H

Audi A8 D3 SRS Air Module Control Unit 4E0959655H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YND500070

Land Rover Discovery 3 L319 Rear Lamp Socket Wire Right O/S 5H22-14N014-AA

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2T1T-15T850-AC

Ford Transit Connect Parking Aid Control Module Unit 2T1T-15T850-AC

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6519007600-1

Mercedes W176 A200CDI OM651.901 136HP Engine ECU Kit A6519007600 Automatic

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5K0945094AC-1

VW Volkswagen Golf 5K Mk6 Rear Tail Light Lamp Wiring Inner Left N/S 5K0945094AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 99761821001

Porsche 987C Alarm Anti Theft System Control Module Unit 99761821001

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8J0971036F

Audi TT Mk2 8J Door Wiring Harness Cable Loom Passenger Side 8J0971036D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2706028110

Toyota RAV4 Mk2 Alternator Generator Denso 12V 90A 27060-28110

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GPLA-14B566-DAB

Range Rover L405 L538 Seat Control Switch Right O/S GPLA-14B566-DAB

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8616811

BMW F20 F22 F32 Positive Battery Cable Battery Plus Lead Loom Wire 8616811

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GK72-15B484-BB

Land Rover Discovery Sport L550 Rear Parking Sensor Wiring Loom GK72-15B484-BB

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0971029K

Audi A5 8T Front Side Door Wiring Harness Loom Cables Driver Side 8T0971029K

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AM5T-19A391-AA

Ford Transit Mk8 Bluetooth Micro Phone Module Speaker Wiring Loom AM5T-19A391-AA

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9321014

BMW F01 Display Screen On Board Sat Nav Central Information Monitor 9321014

€137.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. N9D3-14D619-AA

Range Rover Velar L560 Door Control Unit Module ECU Rear Left N/S N9D3-14D619-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2518701889

Antenna Amplifier Mercedes W164 W251 Aerial Control Unit Module A2518701889

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469005312

Mercedes X117 X156 W246 Relay Control Unit Module A2469005312

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9260600

BMW F30 Interior Wiring Harness Cable Loom Plastic Plug Socket Connector 9260600

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P0959655F

Porsche Cayenne 92A Air Module Control Module Unit ECU 7P0959655F

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9367807-1

BMW X5 F15 Battery B+ Positive Terminal Point Engine Compartment 9367807

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2Q0959772

Volkswagen Polo Mk6 AW Seat Ibiza Mk5 Heated Seat Module Control Unit 2Q0959772

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. K8D2-14N178-AD

Range Rover Evoque L551 Battery Wiring Harness Cable 2.0 K8D2-14N178-AD

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9281714

BMW F83 Camera Kafas Front Windscreen Camera 9281714

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

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