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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Engine Cable BMW F40 X1 F48 Mini F55 F56 Injector Wiring Loom Harness 8678974

€32.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2709060700

Mercedes W176 Starter Motor 12V Bosch M270 Petrol Engine A2709060700

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9240945

Mini Cooper D R55 R56 R57 R60 LCI Electrical System Fuse Distribution Box

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9172019

BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module 9172019

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9266384

BMW 5 Series F10 F11 LCI Boardmonitor Central Information Display 7" 9266384

€56.95

Free delivery: Sep 23 – 24

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Part no. 5Q0937084AC

Skoda Octavia 5E Audi A3 8V Body Control Comfort Module BCM ECU Unit 5Q0937084AC

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 4M0907566B

Audi A4 B9 A5 S5 F5 Lane Change Assist Module Control Rear Right O/S 4M0907566B

€237.95

Free delivery: Sep 23 – 24

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Part no. 6901469-3

Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469

€23.95

Free delivery: Sep 23 – 24

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Part no. 5R3919294

Volkswagen Golf CD1 Park Parking Assist PDC Distance Control Module 5R3919294

€37.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1679000111

Mercedes W167 W177 Radio Stereo Player Sat Nav Head Unit ECE A1679000111

€284.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A9075401205

Mercedes W907 Starter Wiring Battery Alternator Cable Harness Loom A9075401205

€32.95

Free delivery: Sep 23 – 24

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Part no. 5Q0907530N

Skoda Octavia 5E Gateway Control Module Unit ECU 5Q0907530N

€23.95

Free delivery: Sep 23 – 24

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Part no. 059911024P

Audi A6 C7 A7 4G 2.0 TDI Starter Motor Diesel Engine Denso 059911024P

€42.95

Free delivery: Sep 23 – 24

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Part no. A0015424623-1

Mercedes-Benz C E A207 W204 W212 1 Front Parking PDC Display Panel A0015424623

€23.95

Free delivery: Sep 23 – 24

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Part no. A2129005200

Seat Module Mercedes W204 W212 Memory Control Unit Driver's Side A2129005200

€56.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 4H0911075B

Audi A8L 4H Power Positive Distribution Junction Jumper Box Housing 4H0911075B

€23.95

Free delivery: Sep 23 – 24

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Part no. A0009003713

Mercedes W205 Tyre Pressure Control Module Unit A0009003713

€23.95

Free delivery: Sep 23 – 24

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Part no. 8574352

BMW X1 E84 20d 20dX 184HP N47N Engine Control Unit ECU DDE 8574352 Automatic

€89.95

Free delivery: Sep 23 – 24

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Part no. A2465402150

Mercedes-Benz A B Class W176 W246 Diesel Fuse Box Relay Unit A2465402150

€28.95

Free delivery: Sep 23 – 24

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Part no. A1668210351

Mercedes-Benz A CLA C117 W176 Airbag Impact Crash Sensor A1668210351

€23.95

Free delivery: Sep 23 – 24

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Part no. 9237055

Antenna Diversity BMW F07 GT Control Unit Module Aeral Amplifier 868 MHZ 9237055

€23.95

Free delivery: Sep 23 – 24

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Part no. 9154413-1

BMW E93 LCI Convertible GPS Antenna Aerial Unit Module 9154413

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8579479-2

BMW F20 F21 F30 116d 316d N47N 116HP Engine Control Unit ECU DDE 8579479 Manual

€89.95

Free delivery: Sep 23 – 24

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Part no. 8T0959793G

Audi A4 B8 Door Module Front Left N/S Control Unit ECU 8T0959793G

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6904165

BMW X5 E53 Front Dashboard Centre Console Lighter Wiring Loom Harness 6904165

€23.95

Free delivery: Sep 23 – 24

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Part no. 9352574

Mini Cooper F56 Wiring Loom Front Left N/S Door Cables 6809486

€32.95

Free delivery: Sep 23 – 24

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Part no. 2T1T-14A280-CG

Ford Transit Connect 1.8 TDCi Battery Positive Cable Clamp Wiring 2T1T14A280CG

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 2198353

Ford Fiesta Mk8 Starter Motor Engine Actuator 1.5 ST EcoBoost JX6T-11000-CA

€23.95

Free delivery: Sep 23 – 24

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Part no. 6970904

BMW 7 Series E65 E66 E67 Sensor Rear Seat Airbag 65776970904 6970904

€23.95

Free delivery: Sep 23 – 24

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Part no. 8626086

Alternator Motor BMW F20 F21 LCI B37 Diesel Engine Alternator 180A 8626086

€47.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A9079005303

Mercedes Sprinter W907 W910 Control Unit Module ECU A9079005303

€89.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9284282

BMW F10 Body Control Module ECU Junction Box PL6 JBBFE III V2 9284282

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9335291

BMW F20 Front Door Wiring Loom Harness Cable Driver Side 9335291

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 5WA962132

Volkswagen Golf Mk8 Antenna Amplifier Transmitter Receiver Module ECU 5WA962132

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6948692

BMW E60 E61 E63 Passenger Side Door Airbag Control Module 6948692

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8795213

BMW F20 F21 F30 F31 Wire Cable Screen Connector Monitor Display 8795213 8795212

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. YMQ501631

Land Rover Discovery 3 L319 Rear Parking Sensor Wiring Loom Harness 4H2214A614MA

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7823731

BMW E84 E90 E91 LCI 320xd N47 Cable Alternator Starter Base B

€23.95

Free delivery: Sep 23 – 24

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Part no. 4F0971547

Audi A6 C6 Cable Wiring Loom Heater Matrix Air Conditioning Cable 4F0971547

€23.95

Free delivery: Sep 23 – 24

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Part no. 5G0945096Q-1

Volkswagen Golf 5G Rear Tail Light Wire Plug Socket Cable Right O/S 5G0945096Q

€23.95

Free delivery: Sep 23 – 24

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Part no. 8H0951178

Audi A4 B7 Cabrio Alarm Signal Body Control Sensor Module Unit 8H0951178

€23.95

Free delivery: Sep 23 – 24

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Part no. 8M5T-19G488-AK

Ford Mondeo MK4 Galaxy S-Max Bluetooth Voice Control Module 8M5T-19G488-AK

€23.95

Free delivery: Sep 23 – 24

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Part no. 5C0959655F

Volkswagen Jetta Mk6 A6 Air Module Control Unit ECU 5C0959655F

€80.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1765405608

Mercedes-Benz A-Class W176 Rear Right Door Wiring Cable A1765405608

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7638477

Ignition Coil BMW E81 E87N LCI E90 E91 E92 F10 F11 Bosch 7638477

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9314837

Wiring BMW X5 F15 M Sport Rear Park Assist PDC Wiring Harness Loom 9314837

€61.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8638588

BMW F20 F22 F30 LCI 125i 230i 320i 330i B48 Cable Alternator Starter 8638588

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2055409309

Door Wiring Mercedes W205 C253 Passenger Side Cable Harness Loom A2055409309

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9346273

BMW F15 Kafas Camera Lane Assist Module Control Unit ECU 9346273

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6Q0909605AJ

VW Volkswagen Caddy 2K Air Module Control Unit Sensor ECU 6Q0909605AJ

€208.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. GX63-15C859-DG

Range Rover Evoque L538 PDC Parking Distance Control Module GX63-15C859-DG

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8E0959651A

Audi A4 B7 Front Crash Impact Air Module Sensor Unit Module 8E0959651A

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8X0907063AF

Audi Q3 S Line BCM Body Control Module Unit ECU 8X0907063AF

€85.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8656997

BMW X5 F15 X6 F16 Ground Cable Negative Battery Lead Wire 8656997

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0009005602

Mercedes W204 W212 Control Unit AMG Drive Select Module ECU A0009005602

€61.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 5Q0959655BK

Volkswagen Golf Mk7 Air Module ECU Control Module 5Q0959655BK

€170.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8636069

BMW F20 F30 LCI B48 Engine Gearbox Module Wiring Cable Loom Harness 8636069

€85.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1645408662

Mercedes ML W164 Transfer Case Box Module Control Unit ECU A1645408662

€132.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8574024

Engine Wiring BMW F30 F31 335dX N57Z Automatic Gearbox Cable Harness 8574024

€37.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1645400436

Mercedes ML164 Alternator Wiring Starter Motor Harness OM642 A1645400436

€28.95

Free delivery: Sep 23 – 24

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Part no. 8373901

BMW 5 7 X5 E38 E39 E53 Steering Column Adjuster Switch Stalk 8373901

€23.95

Free delivery: Sep 23 – 24

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Part no. 9868383

BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9868383

€66.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. FK72-14F681-AG

Land Rover Discovery Sport L550 Gateway Control Module ECU FK72-14F681-AG

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2125402705

Mercedes W212 Rear Suspension Level Sensor Wiring Loom Cable Harness A2125402705

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8512415-1

Mini Cooper D R55 R56 LCI N47N 112HP Diesel Engine ECU Kit DDE 8512415 CAS3 Key

€227.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8K0959795C

Audi A4 B8 Door Module Rear Left Right N/O/S Control Unit Module ECU 8K0959795C

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. BM5T-18B955-BE

Ford Focus Mk3 Multifunction Screen Dashboard Multimedia Display BM5T-18B955-BE

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 5A03277

BMW F40 KaFAS Camera Module Unit 5A03277 130441

€108.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8P0971679K

Audi A3 S3 8P Dashboard Glove Box Wiring Loom Cable Harness 8P0971679K

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6879833

Air Module BMW F20 F21 F22 F30 F31 ECU ICM Control Unit ECU 6879833

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 2992478-3

Plug Socket BMW X1 E84 Rear Light In The Side Panel Right O/S Wiring 6984754

€80.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. AM51-10A659-AB

Ford Focus Mk3 Battery Cover Lid Panel Trim AM51-10A659-AB

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7835548

BMW 5 6 Series E60 E61 LCI E63 E64 M5 M6 Earth Cable Starter Battery 7835548

€26.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6511590246

Wiring Cable Cover Mercedes W204 W212 W906 OM651 Engine Duct Bracket A6511590246

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1715408405

Mercedes R171 Seat Adjuster Wiring Loom Harness Driver Side A1715408405

€80.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6799083

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

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9387226

Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 9387226

€161.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0131545602

Mercedes W204 W212 Alternator Generator M272 180A 14V Petrol Engine A0131545602

€94.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6927000

BMW E63 E64 Amplifier Holder Catch Bracket Video Module 6927000

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0025427419

Mercedes-Benz A B E M W169 W245 W210 W163 Relay 5-Pin Yellow Hella A0025427419

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8K0971228H

Audi A4 B8 3.0 TDI Starter Alternator Wiring Loom Cable Harness 8K0971228H

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8T0907468F

Audi A5 8T Gateway Control Module Unit ECU 8T0907468F

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 1K0035186AN

Volkswagen Caddy 2K Mk3 Radio Head Unit Media Player Unit 1K0035186AN

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2129006924

Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 2754241-1

BMW MINI Cooper R55 R56 R57 R60 Engine Computer Mount Support Bracket Holder

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9259800

BMW F10 F12 F13 F20 F30 F06 Mini F55 F56 F57 DVD CD Changer Control Unit 9259800

€66.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2115452301

Mercedes-Benz E-Class S211 W211 Fuse Box Terminal Connection Unit A2115452301

€23.95

Free delivery: Sep 23 – 24

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Part no. A2034404913

Mercedes-Benz CLC CL203 Rear Tailgate Boot Lid Wiring Harness Loom A2034404913

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9360357-1

Door Wiring Mini F55 F56 R60 Rear Right Left N/O/S Harness Loom Cable 9360357

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7565300-2

BMW Z4 E85 2.0i N46 150HP ECU Control Unit Module Kit DME 7565300 EWS Key Manual

€170.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7951069

KaFAS Camera BMW F45 Front Camera Control Unit Module 9384688

€23.95

Free delivery: Sep 23 – 24

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Part no. 9282286

BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 MID 9282286

€42.95

Free delivery: Sep 23 – 24

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Part no. 9209758

BMW X5 Z4 E89 E70 Mini Cooper R56 R57 CD Changer Multichanger 9209758

€28.95

Free delivery: Sep 23 – 24

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Part no. A2049000607

Mercedes W204 W207 Air Suspension Module Regulation Control Unit A2049000607

€66.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7L0907719A

Volkswagen Touareg Anti Theft Alarm System Control Module Unit ECU 7L0907719A

€23.95

Free delivery: Sep 23 – 24

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Part no. A2465410105

Battery Cover Mercedes C117 W176 W246 Frame Bracket Mount Holder A2465410105

€23.95

Free delivery: Sep 23 – 24

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Part no. 7191718

BMW Z4 Series E89 Roadster Cabrio Horn High Tone 7191718

€23.95

Free delivery: Sep 23 – 24

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Part no. 5Q0959393B

Audi A3 8V Front Door Control Module Unit Right O/S 5Q0959393B

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2469069600

Mercedes W176 W246 Backup Battery Negative Minus Terminal Lead A2469069600

€170.95

Free delivery: Sep 23 – 24

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