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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Range Rover Sport L494 Fuse Relay Box JPLA-14A073-BB

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. M8D2-14A073-BA

Land Rover Range Rover Evoque L551 Fuse Box 2.0 Diesel Electric M8D2-14A073-BA

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6952987

BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6952987

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A52C23

BMW X1 U11 Electric Wiring Harness Cable 5A52C23

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1635401030

Mercedes W163 Positive Cable Alternator Battery Starter Wire Harness A1635401030

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2533402600

Mercedes X253 Hybrid GLC Battery Electrical Wiring Harness A2533402600

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0003427200

Mercedes EQA350 H243 4matic Electric Voltage Converter Module A0003427200

€408.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9390501

BMW 3 4 Series F31 F32 F80 M3 F82 M4 LCI USB Charger Adapter Socket 9390501

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059004321

Mercedes W205 X253 Front Right O/S Door Control Unit Module A2059004321

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8580308

BMW X1 E84 20dX Diesel N47N 184HP Engine Control Unit ECU DDE 8580308 Manual

€132.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CV1T-14B533-AF

Ford Fiesta Mk7 Front Door Control Unit Module Passenger Side CV1T-14B533-AF

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0035552K

VW Tiguan 5N Antenna Amplifier Module Control Right O/S Unit 5N0035552K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2S6T-14A073-BB

Ford Fiesta Mk5 Fuse Box Unit Battery Fuse Link 2S6T-14A073-BB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059004021

Mercedes W205 GLC X253 Door Module Control Unit Front Left N/S A2059004021

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V4T-14B006-AA

Ford Focus Mk3 Control Unit Crash Impact Sensor Air Module 8V4T-14B006-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CPLA-14B006-AA

Range Rover L405 Air Module Crash Impact Sensor CPLA-14B006-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DPLA-15C859-DF

Range Rover Sport L494 Parking Sensor PDC Control Module ECU DPLA-15C859-DF

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AV1T-14026-AAC

Ford B-Max Door Wiring Frame Assy Jumper Rear Left N/S AV1T-14026-AAC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 0E02320113

Mercedes W205 Electrical Cable Wiring Loom Harness Cabling 0E02320113

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2829062000

Starter Motor Mercedes C118 W177 C247 Petrol OM282 Starter Motor A2829062000

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9384218

BMW F01 F07 F12 F13 Body Control Module BCM Junction Box Electronics 9384218

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9225831

BMW F07 Left N/S Central Bass Loud Speaker Stereo System Unit 9164581

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7559811

Earth Ground Cable BMW E60 E61 E63 N62N 540i 550i 650i Battery Starter Wiring

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0906093D

Audi A4 B9 Fuel Pump Control Unit Module ECU 8W0906093D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FPLA-14B596-NB

Range Rover Sport L494 Terrain Response Drive Mode Control Switch FPLA-14B596-NB

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DG9T-14B526-KA

Ford Mondeo Mk5 Engine Start Stop Control Module ECU Unit DG9T-14B526-KA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LJE3690AA

Jaguar XK8 X100 Battery Positive Cable Wire Plus Cable 4.2 AJ8FT LJE3690AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0971029H

Audi A5 8T Coupe Front Door Wiring Loom Harness Driver's Side O/S 8T0971029H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229002711

Mercedes W205 C253 X253 Front Camera Control Module Unit A2229002711

€184.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8672239-2

BMW F10 M5 F12 F13 M6 S63N 560HP Engine Control Unit ECU 8672239 Automatic

€522.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A98AC9

BMW F74 Steering Gear Rack Wiring Loom Harness Cable 5A98AC9

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7805808

Cooling Water Pump BMW E46 E60 E61 E87 E90 E91 Mechanical Coolant 7805808

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1717344

Ford Kuga Mk1 Antenna Aerial Wiring Harness Adapter BV4T-18A886-AA

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0959655J

Seat Leon Mk2 VW Tiguan 5N Passat CC Air Module Crash Control ECU 5N0959655J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6866254

BMW F40 F45 Mini F56 SAS Module Steering Angle Sensor Control Unit ECU 6866254

€137.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. HK62-14B673-AC

Range Rover Sport L494 Boot Lid Tailgate Power Control Module HK62-14B673-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. RMHPLA-19C216-AA

Range Rover Sport L494 Multimedia Radio Navigation Head Unit HPLA-19C216-AA

€1,348.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3403208

BMW X3 Series E83 Ultrasonic Alarm System Module Control Unit 3403208

€33.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9442274

BMW F70 U06 Antenna Trap Circuit Amplifier Booster Unit Diversity 9442274

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6912244

BMW Z4 E85 Rear Bumper Antenna Mounted Aerial Unit FM 6912244

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2044400605

Mercedes W204 Wiring Loom Cable Harness Door Front Left N/S A2044400605

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2045401710

Mercedes W204 Front Door Wiring Loom Harness Left N/S A2045401710

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 05E907309H-1

Seat Leon 5F Mk3 1.5 TSI DPBA 130HP Engine Control ECU Kit 05E907309H Manual

€132.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1668201089

Mercedes W176 Radio Aerial Antenna Amplifier Booster Unit Module A1668201089

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0005406904

Mercedes X253 Ground Line Battery Earth Cable Wire A0005406904

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129014606-1

Mercedes W212 Display Screen Information Navigation Dashboard A2129014606

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9060005999-1

Mercedes Sprinter W906 Front Door Wiring Harness Left Right N/O/S A9060005999

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P5971694D

Porsche Cayenne 92A Rear Door Wiring Harness Loom Cable Right O/S 7P5971694D

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. K8D2-19C279-BE

Range Rover Evoque L551 Radio Media Headunit Display Screen 10" K8D2-19C279-BE

€332.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0971230AE

Volkswagen Golf Mk7 Audi A3 S3 8V Alternator Wiring Loom 5Q0971230AE

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3AA971154

VW Volkswagen Passat B7 Aux Input In Wiring Plug Port Loom Harness 3AA971154

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7831537

BMW E46 M3 S54 Engine Ignition Coil Pack Wiring Loom Harness 7831537

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L0909606D

Volkswagen Touareg 7L Front Impact Crash Sensor Right Left N/O/S 7L0909606D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9389330

BMW F46 Gran Tourer Door Wiring Loom Harness Rear Left Right N/O/S 9389330

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6974245

BMW MINI Cooper Clubman R55 R55N LCi Retaining Bracket Safety Belt Rear Left N/S

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9284421

BMW F10 F11 Gateway Module ECU Control Unit LEAR ZGW-02 Mid 9284421

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. C1BT-14A584-DBG

Ford Fiesta Mk7 3Dr Front Door Wiring Harness Cable Right O/S C1BT-14A584-BDF

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. K1BT-19K351-AD

Ford Fiesta Mk8 GPS Antenna Aerial Bluetooth Telephone Module K1BT-19K351-AD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6S6Y-9K499-BB

Ford Fiesta Mk5 Exhaust Emission Control Unit Wiring Loom Harness 6S6Y-9K499-BB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P5971121CT

Porsche Cayenne 92A Front Door Wiring Harness Cable Loom 7P5971121CT

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P3945095A-2

Audi A3 8P Rear Lamp Tailgate Trunk Light Left N/S Harness Loom Wire 8P3945095A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4102100111

Toyota Corolla E12 Aerial Antenna Wiring Harness Cable Loom 4102100111

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P6907658

VW Volkswagen Touareg 7P Pitch Angle Sensor Control Unit 7P6907658

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR063759-

Range Rover Sport L494 Positive Battery Alternator Cable Wire DK62-10C307-BE

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9363777

BMW F45 Actve Tourer 2nd Row Seats Wiring Loom Harness Cable 9363777

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5WA962133F

Audi Volkswagen Seat Keyless Entry Module Aerial Antenna 5WA962133F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH22-18N379-AA

Land Rover Discovery 4 L319 Battery Tray Holder Trim Left N/S AH22-18N379-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1872919

Ford Mondeo Mk5 Steering Wheel Heating Control Unit Module DG9T-14B561-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7PP035620AE

Porsche Cayenne 92A Navigation Tracking Control Module 7PP035620AE

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9268706

BMW F01 F02 F04 F10 Rear Compartment Monitor Left Right N/O/S 9,2" Black 9268706

€427.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A5E8B3

BMW F70 Negative Battery Mass Cable Terminal Wire Harness Wiring Loom 5A5E8B3

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2465451500

Mercedes W176 Control Unit Bracket Holder Mount A2465451500

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4E0035563H

Audi A5 8T Digital Radio DAB Tuner Receiver Module Kenwood 4E0035583C

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2045403910

Mercedes W204 Brake Pad Wear Indicator Sensor Rear Axle Left N/S A2045403910

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T8971845

Audi A5 8T Fuse Box Relay Control Unit Module 8T8971845

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 0-431-97

Durite 175A Battery Cable Wiring Harness Connector Cabling 0-431-97

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. RQT500100

Land Rover Discovery L319 Suspension ECU Control Module 2.7 276DT RQT500100

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6421506891

Mercedes W251 R320 CDI OM642.950 224HP Engine Module ECU A6421506891 Automatic

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1648207426

Mercedes ML W164 W251 Air Module SRS Control Unit ECU A1648207426

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C5945095H-1

VW Passat B6 Rear Tail Light Lamp Wiring Harness Cable Left N/S 3C5945095H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1T0035577AE

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7515197-1

Mini Cooper One R50 W10 Battery Cable Wiring Plus Pole 7515197

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AG9T-14324-UB

Battery Cable Ford Mondeo Mk4 Negative Lead Wiring Harness Cable AG9T-14324-UC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2389058501

Antenna Mercedes A205 Convertible Telephone Antenna Module A2389058501

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2139065706-2

Porsche Cayenne S 92a Front Engine Fuse Relay Box Module Unit A2139065706

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6519007103

Mercedes W907 314CDI OM651.958 Engine Control Unit ECU A6519007103 Automatic

€213.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 83A035842A

Audi A1 GB Mk2 Multimedia Sat Nav Radio Head Unit Controller 83A035842A

€156.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. M8D2-9L468-BBC

Range Rover Evoque L551 Wiring Loom Harness Cable M8D2-9L468-BBC

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7PP962132A

Porsche Cayenne 92A Keyless Entry Antenna Module Control Unit 7PP962132A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B4A355

BMW X1 U11 X2 U10 Front Passenger Side Door Control Unit Module 5B4A355

€104.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0937085T

Volkswagen Golf Mk7 Body Control Module BCM 2.0 TFSI 5Q0937085T

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8S61-18C815-AA

Ford Transit Connect Radio Head Unit 6000 CD Media Player Unit 8S61-18C815-AA

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2479004707

Mercedes W177 Dynamic Adaptive Suspension System Control Unit Module A2479004707

€99.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 259901385R

Smart Fortwo C453 Central Electronic Control Unit Module ECU 259901385R

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V21-19G525-AB

Ford Fiesta Mk7 Tyre Inflator Air Compressor Emergency Pump 8V21-19G525-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AM5T-18B955-DJ

Ford Focus Mk3 Navigation Screen Multifunction Radio Display AM5T-18B955-DJ

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9798377-1

BMW F45 LCI 225xe B38X B38A15A 224HP Engine ECU DME Kit 9798377 BDC + Key

€379.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9118468

BMW X5 X6 Series E70 E71 Seat Backrest Adjustment Adapter Lead Cable 9118468

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0955557B

Audi A5 8T Crash Impact Sensor Unit Module Air Unit 8K0955557B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

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