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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Mini F55 F56 F57 F60 Cooper S SD Electric Fan Relay Module Unit 6822250

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2439008400

Mercedes GLC X253 Sound Audio Amplifier Module Rear Harman A2439008400

€56.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7640875

Alternator Generator BMW F10 F20 F30 LCI Diesel Engine Unit Denso 180A 7640875

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 06L971627E

Volkswagen Golf R Mk7 Engine Injectors Wiring Harness 2.0 TFSI CJXB 06L971627E

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 3417586

Electronic Box BMW X3 E83 LCI 2.5si 3.0si N52N Control Unit Mount Holder 3417586

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8482361

BMW G20 G21 Engine Injector Wiring Loom Harness Cable B48X 8482362

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. M8A2-14305-CB

Land Rover Range Rover Velar L560 Battery Starter Wiring 2.0D M8A2-14305-CB

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6960428

BMW 3 5 6 Series E60 E61 E63 E64 E90 E91 FBAS Analog Video Module Unit 6960428

€80.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. BV6N-14A073-FU

Ford Focus Mk3 C-Max Mk2 Body Control Module BCM Fuse Box BV6N-14A073-FU

€336.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7936365

Mini F55 F56 F57 Integrated Supply Module Z11 Control Unit Module 7936365

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. LX6T-15K867-ESAFG

Ford Kuga Mk3 Front Bumper PDC Parking Sensor Wiring Harness LX6T-15K867-ESAFG

€142.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. LR032271

Range Rover L322 PDC Wiring Cable Loom Rear Bumper LR032271

€142.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7352192

BMW F20 CLI F87 LCI BCM Body Control Module FEM Control Unit 5A7FB58

€165.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. VIBE400-1

VIBE Powerbox 400.1M-V7 400W Class D Amplifier Car Stereo Subwoofer VIBE400

€151.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. R8D2-14A076-AA

Land Rover Discovery Sport L550 Fuse Relay Box Lid Left N/S PHEV R8D2-14A076-AA

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7520912

BMW E60 E61 E63 E64 LCI Cover Electronic Box 7520912

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A0025428319

Mercedes W176 W204 C207 W212 C218 W246 Relay 4-Pin Black Hella 12V A0025428319

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. CK52-14B518-ED

Range Rover L405 Door Wiring Loom Harness Cable Rear Right O/S CK52-14B518-ED

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4E0907181A

AUDI S8 D3 Access Start Comfort Kessy Control Module 4E0907181A

€104.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A1679008207

Telematics Module Mercedes W177 W247 Communication Control Unit ECU A1679008207

€113.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7616119

Alternator Generator BMW F10 F11 F20 F21 F30 F31 N55 Denso 14V 210A 7616119

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9285275

BMW X3 F25 X4 F26 Bus Interface 60 Ohm Control Module Unit ECU 9285275

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. BJ32-14D618-AB

Land Rover Discovery L550 Front Door ECU Control Unit Right O/S BJ32-14D618-AB

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 1K0971349MR

Volkswagen Scirocco Mk3 Alternator Wire Wiring Cable Harness Loom 1K0971349MR

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2469000005

Mercedes W176 PDC Parking Distance Control Module Unit A2469000005

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9335298

BMW 1 Series F20 Front Left Door N/S Wiring Loom Harness Cables 9215715

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. HPLA-14F392-JB

Land Range Rover Sport L494 Air Suspension Module Control ECU HPLA-14F392-JB

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. DK62-14N144-BE

Range Rover L405 Positive Battery Cable Wiring Harness Loom DK62-14N144-BE

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. CK52-13554-AE

Land Range Rover L405 Tailgate Camera System Control Module CK52-13554-AE

€246.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8624341

BMW F30 LCI Fuse Box Fusebox Holder Support Mount Bracket Carrier 8624341

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7G92-15K868-AD

Land Rover Freelander 2 L359 Parking Sensor Wire Loom Rear Bumper 7G92-15K868-AD

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7L0142060A

Porsche Cayenne 92A Hybrid Clutch Hydraulic Actuator Unit Motor 7L0142060A

€474.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9312764

Body Control Module BMW F10 LCI ECU Junction Box PL6 JBBFE III V2 9312764

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6994419

BMW G20 Power Distribution Fusebox Cover Fuse Box Terminal 6994419

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6G91-10663-AD

Ford Mondeo Mk4 Battery Tray Holder Bracket Support 2.0 Petrol 6G91-10663-AD

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2465403803-1

Mercedes W117 W156 W176 W242 W246 Electrical Fuse Relay Box A2465403803

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8572439-4

BMW F30 F31 N57N 330d 258HP Diesel Engine ECU Kit DDE 8572439 FEM Key Automatic

€213.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2056200018

Battery Box Bracket Mercedes W205 W213 W238 Trim Holder Right O/S A2056200018

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 2T1T-14A584-BG

Ford Transit Connect Door Wire Harness Loom Front Driver's Side 2T1T-14A584-BG

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2579005100

Mercedes Sprinter W907 Telematics Services Communication Module A2579005100

€113.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 46868567

Vauxhall Movano C Electric Power Steering Wiring Harness 2.2 Diesel 46868567

€56.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A0115453826

Mercedes W163 Data Connector Link Plug Wire Harness Pigtail A0115453826

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5WA937132A

VW Volkswagen Caddy SB Golf GTI CD1 Fuse Box Cover Top Lid Housing 5WA937132A

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8650701-1

BMW F80 M3 F82 F83 M4 S55 431HP Engine Module ECU DME Kit 8650701 Automatic

€1,125.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9189482

BMW X3 E83 LCI Front Seat Belt Tensioner Buckle Cable Left Right N/O/S 9189482

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. KU5T-14G371-GFA

Ford Fiesta St Mk8 Sat Nav Navigation Control Module Unit KU5T-14G371-GFA

€99.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4M0906093M

Audi A5 S5 F5 Quattro Fuel Pump Control Unit Module 3.0 Diesel 4M0906093M

€56.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9253186

BMW X1 E84 Audio Amplifier Booster Sound Control Unit Module 65152990908

€284.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5293147-5

Relay Glow Littel Fuse Mega Fuse 80 Amp 5293147

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 1K0937132F

Vw Golf 5 Audi A3 8P Seat Leon 1P1 Fuse Box Cover Trim Panel Housing 1K0937132F

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6J0035342C

Seat Ibiza FR 6J Dashboard MMI Multimedia AUX Socket Interface Box 6J0035342C

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 51794154-2

Fiat Panda Mk2 Headlight Headlamp Wiring Harness Cable Plug Right O/S 51794154

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7L0937503A

Volkswagen Touareg 7L Fuse Box Relay Control Unit Module 7L0937503A

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A7899823500

Mercedes EQA H243 Engine Relay 20A ECU A7899823500

€51.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5G0907159B

Volkswagen Golf Mk7 5G Body Sound Control Module ECU 5G0907159B

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8516739

Mini One D R56 LCI R60 90HP N47N Engine Control Unit ECU DDE 8516739 Manual

€94.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A0038202926

Mercedes W164 X164 W221 SRS Airbag Impact Crash Sensor A0038202926

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2168204726

Mercedes W221 Bluetooth Control Module Mobile Phone Interface A2168204726

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9359037

BMW F46 Gran Tourer 3rd Row Seat Wiring Harness Loom 9359037

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6949229-2

4 x Mini R52 Convertible DWA Door Alarm System Module Control Unit Set 6949229

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2055404834

Mercedes W205 GLC C253 Touch Pad Controler Wiring Harness Loom A2055404834

€47.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. DV6T-14301-AD

Ford Transit Connect Negative Battery Cable Wiring DV6T-14301-AD

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 0AH911023G

Audi Seat Skoda Volkswagen 1.2 TSI Petrol Starter Motor 0AH911023G

€47.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2129007324

Mercedes SLK R171 Petrol M271 Fuse Box SAM Relay Control Module A2129007324

€94.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8K0959754H

Audi A5 8T Remote Button Smart Key Fob Unit 8K0959754H

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6C1T-14335-BB

Ford Transit Mk7 Antenna Amplifier Control Unit Module 6C1T-14335-BB

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. DK52-14B484-AC

Range Rover L405 Body Control Module Unit BCM ECU DK52-14B484-AC

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. MK83-15K622-CA

Land Rover Range Rover Velar L560 Comfort Control ECU Transceiver MK83-15K622-CA

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. K8D2-14N172-AD

Range Rover Evoque L551 Battery Box Wiring Cable Hybrid K8D2-14N172-AD

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4L0971036K

Audi Q7 4L Door Wiring Loom Harness Wire Cable Front Right O/S 4L0971036K

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6929726

BMW E65 E66 Front Seat Wiring Harness Loom Cable Left N/S 6929726

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. D1BT-14D212-EB

Ford Transit Connect Bluetooth Interface Control Module ECU D1BT-14D212-EB

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8S0972752

VW Volkswagen Tiguan 5n Passat B8 Wiring Loom Harness Plug Conctact 8S0972752

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4H0945096H-2

Audi A8 D4 Rear LED Light Lamp Taillight Right O/S Harness Loom Wire 4H0945096H

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2185403005-1

Mercedes CLS C218 Front Door Wiring Harness Loom Passenger Side A2185403005

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2075405205

Mercedes W207 Door Cable Wiring Loom Front Left Right Door N/O/S A2075405205

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5Q0907361G

Seat Leon Mk3 5F Fuse Box Control Unit Module Relay Box 5Q0907361G

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2469008516

Parking Brake Module Mercedes W176 W246 Electric Control Unit ECU A2469008516

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8W0907239C

Audi A5 S5 RS5 F5 A4 S4 RS4 B9 Telematic Module Bracket Holder Mount 8W0907239

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. FK72-14A699-BBC

Land Rover Discovery L550 Front Seat Wiring Loom Harness Cable FK72-14A699-BBC

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2208200275

Mercedes W220 Front Door Keyless Entry Antenna Right O/S Side A2208200275

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. BV61-12A650-CNB

Ford Focus Mk3 1.6TI IQDA 105HP Engine Control Unit ECU BV61-12A650-CNB Manual

€47.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. HR3T-15604-HFE

Ford Mustang GT Mk6 BCM Body Control Module Alarm Keyless Entry HR3T-15604-HFE

€94.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 1K0971349EM

Volkswagen VW Touran 1T Alternator Main Cable Wiring Harness Loom 1K0971349EM

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A6519007600-3

Mercedes W246 B180 CDI 651.901 109HP Engine ECU Kit A6519007600 Ignition + Key

€142.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9167237

BMW E92 F32 E61 Seat Belt Module Control Unit LCPA ECU 9167237

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7419610-1

BMW F30 F31 LCI Headlight LED Module Insert Light Source Control Unit 7419610

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. BV61-12A650-DGB-1

Ford Focus Mk3 1.6 TDCI T1DB 115HP Engine Control ECU BV61-12A650-DGB Manual

€113.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. GB3T-14D068-KC

Ford Ranger Mk3 Fuse Box Relay Panel 2.2 TDCI 4x4 GB3T-14D068-KC

€113.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7L5971104

Porsche Cayenne 955 9PA Rear Bumper PDC Sensor Wiring Loom Cable 7L5971104

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8044503

BMW F06 F10 F12 F13 Fuel Injectors Wiring Loom Harness Cable 8044503

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 4K5971030D

Audi A6 C8 Door Card Wiring Loom Harness Cable Front Passenger Side 4K5971030D

€61.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8V0035864

Audi A3 8V Multimedia MMI CD Player Head Unit Audio Player 8V0035864

€104.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5Q0907530AG

Skoda Octavia 5E Mk3 Superb Mk3 Gateway Control Unit Module 5Q0907530AG

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. LR037711-2

Range Rover Evoque L538 Rear Tail Light Lamp Connector Wire Left N/S LR037711

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 03L906022RC-1

Audi TT 8J 2.0TDI 170HP CBBB Quattro Engine ECU Kit BCM Key 03L906022RC Manual

€170.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 3T9035577A

Skoda Superb Mk2 B6 Aerial Antenna Amplifier Module Control Unit 3T9035577A

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. KK62-14N244-AE

Range Rover Sport L494 Alternator Wire Harness Cable Hybrid KK62-14N244-AE

€61.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. A2216890614

Mercedes W221 PDC Distance Control Holder Bracket A2216890614

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

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