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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BMW E93 Cabrio Air Module Control Unit Module ECU 9159794 65779159794

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9267205

BMW E91 Touring LCI ECU Body Control Module Junction Box H2 9267205

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9187533

BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE II 9187533

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9197354

BMW X1 X3 E84 F25 Cigarette Lighter Socket With Cable 9197354

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9259467

Fuse Box BMW X3 F25 Power Distribution Control Unit Module Front 9259467

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7316536

BMW G30 G11 G12 Sunroof Sliding Roof Drive Unit Motor Actuator

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9143823-1

BMW E88 E93 LCI ECU Air Control Unit Module Controller 9143823

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1775404107-1

Fuse Box Mercedes C118 W177 W247 Battery Relay Terminal A1775404107

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8506434-1

BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS 3 Key 8506434

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9266409

Gateway Module BMW F10 F11 Central Module Control Unit Lear ZGW-02 9266409

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1508927

Mini Cooper S R52 R53 Positive Battery Cable Lead Wire Cable B 1508927

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8510284

Engine Wiring Loom BMW F30 F31 F32 330d 430d N57N Gearbox Module Harness 8510284

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1668203426

Mercedes W166 C292 Front Seat Adjuster Module Unit Left Right N/O/S A1668203426

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2048210851

Mercedes W212 Windscreen Rain Sensor Temperature Humidity Unit A2048210851

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9178862

BMW 1 3 Series E87 E90 Hands-free Electronics Bluetooth Module MULF2 9178862

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8586572

Engine Wiring BMW F20 LCI F30 F31 B47 Automatic Gearbox Loom Harness 8586572

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V0857273P

Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. X3 E83 Rear Wiring Loom PDC-1

BMW X3 Series 1 E83 Rear Bumper Wiring Loom PDC Harness Parking Sensor

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L906022FL

Audi A6 C6 3.0 TDI 233HP Diesel Engine Control Unit ECU Kit Module 03L906022FL

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129006518

Door Module Mercedes W204 W207 W212 Front Right O/S Control Unit A2129006518

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6960433

BMW E60 E61 E63 E64 E90 E91 FBAS Analog Video Module Unit 6960433

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9229007

BMW F10 Antenna Amplifier Diversity 868 MHZ 9229007

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6397602004

Bowden Cable Mercedes W639 Rear Right O/S Sliding Door Handle Catch A6397602004

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7160897-1

BMW E53 E60 E65 E81 E87 E90 E91 Bulb Holder Turn Indicator 7160897

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6882969

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Air Module 6882969

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0919475R

Parking Module Audi A4 B8 A5 8T PDC Sensor Control Unit 8K0919475R

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1729008500-3

Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. RVH000046

Land Rover Discovery 3 L319 Air Suspension Valve Control RVH000046

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8512043

BMW 3 E90 E91 LCI 316d 318d N47N Engine Basic DDE 8512043 Control Unit Manual

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129004106

Door Module Mercedes W212 Rear Left N/S Control Unit A2129004106

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0919475AA

Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0035420219

Relay Mercedes W639 W906 5-Pin Black 12A A0035420219

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9362848

BMW 1 3 Series F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9284331

Mini Cooper R55 R56 LCI R60 R61 Roof Light Switch Operating Unit 9284331

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2049001506

Mercedes W204 Coupe Door Module Front Right O/S Control Unit A2049001506

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6955475

BMW Mini Cooper R50 R52 Aerial Antenna Amplifier Diversity Module 6955475

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9261590

PDC Parking Sensor BMW F20 F21 F30 Ultrasonic Front Tiefseeblau Deep Sea Blue

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7631558

Engine Starter BMW F20 M135i F30 335i F32 435i F80 M3 F82 M4 Motor Start 7631558

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9230454

BMW 1 Series E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9230454

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7811700-1

BMW 1 3 Series E81 E87 E90 E91 120d 320d N47 Engine Control Unit ECU DDE 7811700

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6C1112A650AN

Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit ECU Manual 6C1112A650AN

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH2211001AC

Land Rover Range Rover Sport L320 3.0 Diesel Engine Starter Motor AH2211001AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9178962

BMW X5 X6 E70 E71 Power Distribution Fuse Box Battery 9178959

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1698208326

Mercedes-Benz W169 W245 Door Module Front Left N/S Control Unit A1698208326

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9240274-2

BMW E30 E31 F01 F02 F10 F11 Top View Mirror Camera 9240274

€99.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0959651

Audi A3 8V Front Impact Sensor Crash Detection Module Unit 5Q0959651

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9370431

BMW X1 Series F48 KaFAS Camera Assist Speed Limit Control 9370431

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9252636

BMW X1 E84 PDC Sensor Parking Control Module Unit ECU 9225822

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959655B

Audi S5 8T Air Module Control Unit SRS System ECU 8K0959655B

€123.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1709317

BMW X5 E53 E60 E61 E63 E64 Petrol Engine Ping Knock Sensor 1709317

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0907357B

Audi A4 B8 Headlight Range Module Control Unit ECU 8K0907357B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9189906

BMW E88 E93 LCI Air Module Control Unit ECU 9189906

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6809053

BMW F20 F22 F30 Rear Electronic Module REM Fuse Box Control Unit V5 ECU 6809053

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2035407608

Mercedes-Benz C W203 Front Left Right Door Wiring Loom Harness A2035407608

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2045402410

Mercedes W204 Door Wiring Front Left N/S Door Cable Harness A2045402410

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9169521

BMW E61 Centre Console Switch Cluster Control Unit ECU 9169521

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7638194

BMW F20 F21 F22 F30 F31 Engine Starter Motor N20 N26 N55 Petrol 7638194

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6397600704

Mercedes Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600704

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6915061

Mini Cooper One R55 R56 R57 Power Folding Wing Mirror Module ECU Control 6915061

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9264568

BMW E92 LCI Body Control Module Unit PL2RR JBBFE IIIR L1 9264568

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9866979

BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V2 REM 9866979

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229004320

Telematics Module Mercedes C238 Communication Blutooth Control A2229004320

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2046801231

Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2046801231

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2049006301

Mercedes W204 Rear SAM Module Fuse Box Control Unit A2049006301

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P0971085A

Audi A3 8P Rear Bumper PDC Parking Sensor Wiring Harness Loom 8P0971085A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1669004402

Door Module Mercedes W176 W246 Front Right O/S Control Unit Module A1669004402

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8507899

BMW F31 N47N 320d Engine Wiring Harness Module Diesel 8507899 8507896

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7631026

Mini R55 R56 R57 LCI R60 N47N Automatic Gearbox Basic Control Unit EGS 7631026

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009051600

Mercedes W207 W212 W221 Front Windscreen Windshield Camera A0009051600

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0025467940

Receptacle Housing Mercedes W164 W203 W639 Dashboard Wiring Harness A0025467940

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7566525

BMW E82 E90 135i 335i N54 Engine Gearbox Wiring Loom Harness Cables 7566525

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059004721

Mercedes W205 Door Control Unit Module Rear Right O/S A2059004721

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009057908

Mercedes C238 Rear Bumper Blind Spot Radar Sensor Left Right N/O/S A0009057908

€151.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059005122

Seat Module Mercedes W205 W253 Memory Control Unit Driver's Side A2059005122

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9240077

BMW E93 Cabrio Convertible Folding Top Roof ECU Module CTM 9240077

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. RVH000095

Land Rover Discovery 3 L319 Relief Suspension Valve Block Control RVH000095

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6929916

BMW E63 E64 Rear Bumper PDC Cables Set Wiring Loom Harness 6929916

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0909605AE

VW Volkswagen Scirocco Mk3 Air Module Control Unit ECU 1K0909605AE

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7638192

BMW F20 F21 F30 F31 N13 Petrol Engine Starter Motor Bosch 7638192

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6822602

BMW F20 F21 F30 F31 Head Unit Basic Media Navigation Headunit 6822602

€132.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9329702

BMW F20 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9329702

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7075946

BMW 5 7 Series E60 E61 E65 Front Seat Backrest Adjustment Drive Memory 7075946

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 99661510200

Porsche Boxster 986 Rear Spoiler Control Relay 99661510200

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9298958

Rear Electronic Module BMW F20 REM Fuse Box Control Unit V1 9298958

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9151979

BMW E60 E90 Dashboard Dash Onboard Monitor Display Screen 8.8" CCC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959795F

Audi Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3453590

Mini Cooper R57 R58 Antenna Bumper Mounted FM/DAB Wiring 3453590

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7342174

BMW X1 E84 Z4 E89 LED Xenon Headlight ECU Module 7342174 L90028076

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2048700196

Radio Player Mercedes W204 COMAND Navi CD Head Unit A2048700196

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2048702789

Aerial Antenna Amplifier Mercedes W204 Estate Left N/S Booster Unit A2048702789

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2225618

Ford Transit Custom Mk1 Engine Starter Motor 2.0 EcoBlue GK2T-11000-AB

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7589971-1

Mini One R55 R56 N12 1.4 95HP ECU Engine Control Unit DME 7589971

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8583575

BMW F07 F10 F11 F12 Diesel N57 Engine Wiring Injection Wiring Harness 8583575

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2465402050

Mercedes W176 Fuse Box Control Unit SAM Module Relay A2465402050

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2035451303

Mercedes CL203 W203 Fuse Box Cover Engine Bay Relay A2035451303

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6856314

BMW 1 3 Series F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2465400340

Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6857300

Air Module BMW F01 F02 LCI F10 F11 F13 ICM Crash Control Unit ECU 6857300

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8573258-10

Engine Control Unit BMW F20 116d F30 316d N47N 116HP ECU DDE 8573258 Manual

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

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