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 E60 E61 E90 E91 On-board Navigation Display Monitor Screen 6,5"

€32.95

Free delivery: Nov 12 – 13

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Part no. A9068204126

Mercedes Sprinter W906 Door Module Front Right O/S Control Unit A9068204126

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2465407832

Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465407832

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0907637A

Audi A6 C6 Yaw ESP Rate Sensor Module Unit Control ECU 4F0907637A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P0919283D

Audi A3 8P PDC Parking Distance Control Sensor Module Unit ECU 8P0919283D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1728200815

Mercedes W204 C207 Centre Console Aux Port Socket Plug Terminal A1728200815

€23.95

Free delivery: Nov 12 – 13

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Part no. 9284976

BMW F13 F12 F06 Dashboard Display Central Information Display Monitor 9284976

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 420919275-IWH

Audi A4 A5 Q7 Rear Bumper PDC Parking Sensor Ibis White - Y9C 420919275

€23.95

Free delivery: Nov 12 – 13

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Part no. 6985878-1

BMW 5 Series E60 E61 LCI Actuator Fuel Filler Flap Lock 67116985878 6985878

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0907658

Audi A3 8V A5 8T A6 A7 Air Quality Sensor Control Unit 4H09076588

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2465410005

Mercedes W176 W246 Battery Cover Fuse Box Trim Panel Lid A2465410005

€23.95

Free delivery: Nov 12 – 13

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Part no. A0025450801

Fuse Holder Mercedes W169 W245 W906 Electrical Fuse Box Bracket A0025450801

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9382516

PDC Module BMW F15 F16 F25 Mini F55 F56 Parking Assistant Control Unit 9382516

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06K907425B

Audi S1 8X 2.0 TFSI CWZA 231HP Quattro Engine Control Unit ECU 06K907425C

€180.95

Free delivery: Nov 12 – 13

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Part no. 9259466

BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear

€23.95

Free delivery: Nov 12 – 13

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Part no. 7514342

BMW E34 Z4 E85 Base B Terminal Point Engine Compartment 7514342

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3Q0907530G

Audi S3 8V Central Gateway Control Unit Module Relay ECU 3Q0907530G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0325453132

Gearbox Module Mercedes SLK R171 Automatic Transmission Unit EGS A0325453132

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1775404007

Fuse Box Mercedes W177 Power Distribution Junction Relay Unit A1775404007

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2118703226

Mercedes W245 Bluetooth Control Unit Module Hands Free A2118703226

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129003704

Parking Module Mercedes W207 W212 PDC Distance Control Unit Sensor A2129003704

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GX73-14B526-AC

Land Rover Discovery L550 Voltage Converter Control Module Unit GX73-14B526-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0035462

Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035462

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9367350

KaFAS Camera BMW F10 F20 F30 Mini F55 F56 Front Control Unit Module ECU 9367350

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1179001802

Mercedes W176 Air Module Belt Locking System Control Unit Module ECU

€61.95

Free delivery: Nov 12 – 13

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Part no. 5M5T14B192CA

Ford Transit Custom Relay 4-Pin Black 12V 40A FOMOCO SET 5M5T14B192CA

€23.95

Free delivery: Nov 12 – 13

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Part no. 9324781

BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9324781

€70.95

Free delivery: Nov 12 – 13

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Part no. 7599881-14

BMW E87 LCI E90 E91 N43 116i 316i 122HP Engine Unit ECU DME 7599881 Manual

€75.95

Free delivery: Nov 12 – 13

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Part no. A2079013700

Mercedes-Benz E-Class W207 Windscreen Windshield Rain Sensor Control Unit

€23.95

Free delivery: Nov 12 – 13

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Part no. A2609060100

Mercedes C118 W177 W247 M260 Petrol Engine Starter Motor 12V A2609060100

€56.95

Free delivery: Nov 12 – 13

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Part no. A2035400031

Mercedes CLK W203 C209 Negative Battery Terminal Cable A2035400231

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L0864643B

Battery Cover Audi Q7 4L VW Touareg 7P Porsche Cayenne 9PA Top Cap 7L0864643B

€23.95

Free delivery: Nov 12 – 13

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Part no. 6923945-2

BMW E60 E60N E61 E63 LCI B Terminal Point Engine Compartment 6923945

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009002308

Mercedes W447 W906 Adblue Module Exhaust Gas Control Unit ECU A0009002308

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9348728

BMW F22 F30 LCI Control Unit Airbag ECU NO CRASH DATA 9348728

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009821212

Energy Distributor Mercedes W205 W212 W213 W906 Control Unit Module A0009821212

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059004113

Mercedes S205 Display Screen Multimedia Navigation Sat Head Unit A2059004113

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9257366

BMW 5 7 Series F01 F10 LCI Aerial Antenna Amplifier Diversity 868 MHZ 9257366

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0907530AJ

Audi RS3 8V Gateway Control Module GCM Unit ECU 5Q0907530AJ

€23.95

Free delivery: Nov 12 – 13

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Part no. 7181313

BMW X1 E84 E90 E91 Door Handle LED Light Lighting Left N/S 7181313

€23.95

Free delivery: Nov 12 – 13

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Part no. 5Q0919294K

Audi RS3 8V PDC Parking Distance Control Sensor Module Unit ECU 5Q0919294K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2035454701

Mercedes-Benz C CLC Class CL203 S203 W203 Fuse Box Module SAM Unit A2035454701

€61.95

Free delivery: Nov 12 – 13

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Part no. 9282118

BMW F10 CAS4 Control Unit Module 9282118 61359282118

€66.95

Free delivery: Nov 12 – 13

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Part no. 038971803

Volkswagen VW Caddy 2K Injector Wiring Harness Loom 038971803

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7363091

Xenon Headlight Module BMW F22 F23 Control Unit Driver Module 7363091

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8516246

BMW F10 LCI F20 F22 F30 F32 B37 Wiring Harness Engine Glow Plug Module 8516246

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059002211

Display Mercedes C205 Dashboard Central Multimedia Car System Screen A2059002211

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469050101

Mercedes W176 W246 Rear Boot Lid Tailgate Antenna Booster Amplifier

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9381299

BMW F20 F21 F30 F31 Business Navigation Sat Nav Head Unit Player 9365833

€484.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9068200286

CD Radio Mercedes Vito W639 Sprinter W906 Audio Stereo Head Unit A9068200286

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959655N

Audi A4 B8 A5 8T Air Module Control Unit ECU 8K0959655N

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9216128

BMW 3 4 5 Series E92 F32 E61 LCPA Seat Belt Module ECU 9216128

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6853705

BMW X6 E71 ICM Integrated Chassis Management Control Unit Brakes 6853705

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959792H

Door Control Module Audi S4 A4 B8 A5 8T Front Right O/S Passenger 8K0959792H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6864204

ICM Module BMW F20 F21 F30 F31 Control Unit 6864204

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9803844

Mini Cooper Countryman R60 R61 Aerial Roof Antenna Base Module 9803844

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9120788

BMW 5 Series E60 E61 Wiring Loom Harness Passenger Side 9120785

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8507885

BMW 1 3 Series F20 F30 Diesel N47N Wiring Harness Engine Gearbox Module 8507885

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6798242

ICM Module BMW F10 F11 Integrated Chassis Management QL ES Control Unit 6798242

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9229294

BMW F20 F21 F22 F30 F31 F80 M3 USB Socket Plug Port Control Unit 9229294

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L0937576B

Audi Q7 4L Fuse Box Trim Cover Panel Electrical Unit Housing 7L0937576B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A4479000900

Mercedes Vito W447 Air Module Control Unit ECU 4479000900

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8E0951253

Fuel Pump Module Audi A4 B7 A6 C6 Q7 4L Sender Control Relay Unit ECU 8E0951253

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7168153

BMW MINI Cooper One Clubman R55 R55N LCI Wiper Motor Window Left Rear N/S 716815

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9146036

BMW X5 E70 ECU Body Control Module Unit JBBFEII PL4 LOW 9146036

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0018204535

Microphone Mercedes W639 W906 Hands-Free Interior Mic Unit A0018204535

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8792148

Navigation Headunit BMW F20 F22 F30 Mini F55 F56 Head Unit Basic Media

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469004512

Mercedes-Benz A M Class W166 W176 Parking Brake Control Unit Module ECU

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009820412

Mercedes W176 W205 W212 Voltage Converter Power Distributor Plug A0009820412

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009055504-TNG1

Mercedes W166 C207 Front Rear PDC Parking Distance Sensor Tenorite Grey - 755

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C0915443A

Audi A3 8P Battery Box Tray Covering Housing Trim Holder Bracket 3C0915443A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1695400209

Mercedes W169 W245 Diesel Engine Starter Wiring Loom Cable A1695400209

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9136039

BMW E60 E63 Body Control Module ECU Control Unit 9136039

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 038907281B

Audi A6 C6 2.0 TDI Glow Plug Relay Unit Control Module 038907281B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7589971

Mini Cooper R55 R56 Petrol N12 120HP Engine Control Unit ECU DME 7589971 Manual

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129003614

Fuse Box Mercedes W212 Rear Relay Control Unit Electric Module SAM A2129003614

€118.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6913896

BMW Z4 E85 E86 Aerial Antenna Amplifier Module Rod 6913896

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5K0959354

Skoda Yeti 5L VW Golf Mk6 Air Module Crash Impact Sensor Control 5K0959354

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9286941

BMW F10 ECU Body Control Module Junction Box V2 PL6 JBBFE III 9286941

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9491419

BMW F45 F48 F15 F31 F36 Mini F60 Trunk Lid Automatic Lift Control Module 9491419

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6960803

BMW E65 E66 E67 Control Unit Voice Input System Module 6960803

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7527610-5

Mini Cooper One R50 R52 W10 Engine Control Unit DME Manual 7527610

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L903023F

Volkswagen Golf Mk6 Alternator Generator Electrical Unit Valeo 03L903023F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2753722

Mini Cooper R55 R56 Drivers Side Right O/S Electric Window Lifter Motor Door

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9292248-1

Display Screen BMW F30 F31 F32 F33 Central Information Display 8,8" 9292248

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6819334

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 6819334

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9311296

Radio Player BMW F10 F11 F20 F21 F25 F30 F31 Alpine CD Champ 2 Head Unit 9311296

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9204545

Hands Free Bluetooth Module BMW E81 E87 E90 E91 Electronics MULF2 9204545

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6820931

Telematics Module BMW X1 F48 F20 F30 Bluetooth GPS Control Unit ECU 6820931

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6855995

Control Unit Module BMW F20 F21 F22 F30 F31 ECU ICM Plus 6855995

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9362848-1

Telematics Module BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Unit 9342881

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7259883

Stop Lamp Cover BMW F30 F80 M3 Rear Third Stop Brake Lamp Trim 7259883

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2098202126

Mercedes C209 Door Control Module Front Left N/S A2098201926

€132.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6822077

BMW F20 F21 F22 F30 F31 Head Unit Basic Media Navigation Headunit 6822077

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7604782-1

MINI Cooper S R55 R56 LCI R60 Alternator Generator 150A Petrol 7604782

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9875929

BMW F20 F21 F22 F23 LCI DAB Navigation Head Control Unit Module Business 9875929

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6397600604

Mercedes-Benz Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600604

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6864927

BMW F01 F02 LCI F06 F10 F11 F13 ECU ICM Control Unit Air Module 6864927

€23.95

Free delivery: Nov 12 – 13

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Part no. 9296494-1

BMW F20 F21 F22 F30 F31 F32 Control Unit Airbag Ecu 9296494

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

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