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 1 2 F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Mineralweiss White A96

€23.95

Free delivery: Sep 23 – 24

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Part no. 9210147

BMW F20 F30 Central Bass Speaker Stereo Subwoofer Left N/S 9210147

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 1K0915181H

Audi A3 8P Negative Cable Battery Terminal Wiring Loom 1K0915181H

€23.95

Free delivery: Sep 23 – 24

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Part no. 3448379

Mini R55 R56 R57 R58 R60 R61 Control Unit PDC Parking Sensor Module 3448379

€23.95

Free delivery: Sep 23 – 24

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Part no. 6950181

BMW E93 Aerial Antenna Amplifier Diversity Control Module 6950181 9187798

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9284331-1

Mini R55 R56 R60 R61 Roof Operating Unit Light Switch 3455632

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9196938

BMW E93 Seat Control Module Unit ECU 9148266

€32.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A9079004105

Air Module Mercedes Sprinter W907 W910 Control Module ECU A9079004105

€85.95

Free delivery: Sep 23 – 24

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Part no. A2129004014

Mercedes W204 W212 Front Door Module Control Unit Module Left N/S A2129004014

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7388490

BMW F31 Body Control Unit Module HKFM 7388490 0066245503 F005V01610

€32.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9110258

BMW E81 E87 E90 E91 Control Unit Air Module ECU 9110258

€23.95

Free delivery: Sep 23 – 24

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Part no. 6956746

BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Monaco Blue A35 6956746

€23.95

Free delivery: Sep 23 – 24

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Part no. 6925330

Central Bass Speaker BMW E81 E87 E90 E91 E92 Stereo Audio Right O/S 6925330

€23.95

Free delivery: Sep 23 – 24

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Part no. A2125405710

Mercedes W212 PDC Wiring Parktronic Parking Sensor Cable Rear A2125405710

€23.95

Free delivery: Sep 23 – 24

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Part no. A1645430062

Mercedes W221 Rear View Reversing Camera Control Unit Module A1645430062

€47.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9365764

Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav High Control Module 9365764

€123.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7168154

Mini Clubman R55 LCI Wiper Motor Actuator Window Right Rear O/S 7168154

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0055421918

Yaw Module Mercedes W204 Rotation Rate Acceleration Sensor A0055421918

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9251702

BMW 1 2 3 Series F20 F21 F22 F30 F31 F32 Connecting Wire Sat Nav Champ/Mask-CID

€32.95

Free delivery: Sep 23 – 24

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Part no. 9324784

BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9324784

€66.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6856980

BMW F01 F10 F11 F30 F31 AHK Towing Hitch Tow Bar Control Module Unit ECU 6856980

€108.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9173686

BMW X3 Z4 E83 E85 E86 Radio Business CD Player 9173686

€189.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2038201485

Mercedes W203 Door Control Module Front Right O/S A2038201485

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0009820212

Mercedes W176 W212 W246 Voltage Converter Inverter Power Distributor A0009820212

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9261591

BMW F20 F21 F30 PDC Ultrasonic Parking Sensor PDC Front Imperial Blau Blue

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2469000012

Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012

€47.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9114342

Distance Control Sensor BMWE81 E87 E90 PDC Parking Sensor Montego Blue 9114342

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6962678

BMW E81 E87 E91 Switch Cluster Steering Column Wiper Stalk 6962678

€23.95

Free delivery: Sep 23 – 24

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Part no. 9114135

BMW X5 X6 Series E70 E71 Power Distribution Fuse Box 9114135

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 4F0907279

Audi A6 C6 Power Supply Module Comfort Control Unit ECU 4F0907279

€23.95

Free delivery: Sep 23 – 24

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Part no. 7490465

BMW F10 F20 F30 F31 Mini F55 F56 Seat Heating Module Control Unit ECU 7490465

€23.95

Free delivery: Sep 23 – 24

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Part no. 4F0915519

Volkswagen Polo Touareg Audi A4 A6 A7 A8 Battery Overload Protection 4F0915519

€23.95

Free delivery: Sep 23 – 24

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Part no. 9276099

BMW F01 F10 Diversity Aerial Antenna Amplifier Module DAB 9276099

€35.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2129003508

Mercedes W207 W906 Fuel Pump Control Unit Module ECU A2129003508

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 3456995

Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Unit Head 3456995

€237.95

Free delivery: Sep 23 – 24

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Part no. 9177978

BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9177978

€23.95

Free delivery: Sep 23 – 24

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Part no. 9196669

CD Changer 6 Disc BMW E81 E87 E90 E91 E92 Without Magazine 9196669

€32.95

Free delivery: Sep 23 – 24

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Part no. A2125420018-TNG

Mercedes W204 Parking Sensor PDC Distance Front Tenorite Grey - 755 A2125420018

€23.95

Free delivery: Sep 23 – 24

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Part no. 6901469-1

2X 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. 9276064

BMW X3 F25 Antenna Aerial Diversity Amplifier Unit 868 MHZ 9276064

€23.95

Free delivery: Sep 23 – 24

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Part no. 7592508

BMW X5 E70 E90 LCI F20 Engine Wiring N55 Valvetronic Servomotor Cable 7592508

€32.95

Free delivery: Sep 23 – 24

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Part no. A0009068802

Alternator Generator Mercedes Sprinter W906 Engine Diesel 180A 14V A0009068802

€142.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9350995

BMW F10 F20 F30 Reversing Camera Rear View Control Unit 9350995

€75.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 3416765

Mini Cooper One R56 Antenna Amplifier Aerial Diversity Module 3416765

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0009067702

Alternator Generator Mercedes W204 W207 W212 Engine Diesel 180A 14V A0009067702

€85.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7796892

BMW E60 E61 X3 E83 X5 E70 X6 E71 Starter Motor Diesel 7796892

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 3428715

MINI Cooper One R56 R55 R58 R60 R61 Airbag ECU Control Module 3428715

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9317872

BMW F20 F21 F22 F30 F31 Alpine CD Champ 2 Radio Player Head Unit 9323784

€42.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2229005118

Mercedes W205 Ambient Color Light Module ECU A2229005118

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7614083

BMW F20 F21 F22 F30 F31 F32 LCI Earth Ground Cable Battery Wiring 7614083

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6862756

BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6862756

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7316535-3

BMW F06 F13 Sliding Sunroof Drive Motor Unit Webasto 7316535

€47.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9389657

BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9389657

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9809354

Mini R55 R56 R60 R61 Air Module ECU Control Unit Module 9809354

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2129018508

Mercedes W212 Air Bag Control Unit ECU AirBag Sensor Module A2129011105

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2038207385

Mercedes W203 ECU Control Unit Crash Impact Sensor Module Air Module A2038207385

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6865298

BMW F20 F21 F30 F31 ECU ICM Plus Air Unit Control Module 6865298

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9181965

Mini Cooper One Cabrio R50 R52 Air Con A/C Conditioning Pipe Hose Evaporator

€23.95

Free delivery: Sep 22 – 24

If paid before 14:00

Part no. 7H0907652A

Audi Q7 4L Yaw Rate Speed Sensor Module 7H0907652A

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2129004203

Mercedes W212 Boot Lid Control Unit Trunk Lid Module A2129004203

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7605060

BMW F20 F21 F30 LCI DENSO 170A Alternator Generator 7605060

€42.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9226885

BMW F20 F21 Aerial Antenna Amplifier Diversity DAB 9226885

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7640508-2

BMW 1 3 4 Series F20 F21 F30 F31 F32 F33 Cooling Fan Control Unit Radiator

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7800167

BMW E70 LCI E90 E91 LCI F10 F11 N57 Lead Preheater Wiring System Diesel 7800167

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1668210151

Impact Sensor Mercedes W166 W176 W246 Crash Sensor A1668210151

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0025421319

Mercedes W204 Genuine Universal In Car Black Relay 4-Pin Tyco A0025421319

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9258170

BMW 1 3 E81 E87 E90 E91 E92 LCI Radio CD Professional Control Unit 9258170

€142.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1728100011-1

Navigation Processor Mercedes W176 W212 Control Unit Module NTG 4.5 A1728100011

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7258278

Headlight Module BMW F07 F10 LEAR TMS Headlamp Control Unit Module 7258278

€61.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7412610

BMW F15 F16 F31 F36 Module Control Unit Trunk Lid Rear Tailgate Lift 7384722

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0045428718-1

Mercedes W203 W211 Parking Distance Sensor PDC Iridium Bright Silver

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9866982

BMW F20 F22 F30 F32 REM Rear Electronic Module Fuse Box Control Unit V5 9866982

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8515900

BMW X5 E70 LCI X6 E71 F01 F02 Starter Motor N57 Engine 8515900

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9803844-1

Mini Cooper Countryman R58 R60 R61 Aerial Roof Antenna Base Module 9803844

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6799677

BMW F11 Touring Rear Axle Air Suspension Control Unit ECU Module 6799677

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9229875

BMW 3 Series E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359229875 9229875

€75.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8588448

BMW 1 3 Series F20 F21 F30 LCI Wiring Harness Engine Glow Plug Module 8588448

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6401540502

Mercedes W169 W245 A B 160 180 200 CDI OM640 Alternator Generator A6401540502

€80.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9207913

BMW F20 F21 F22 F30 F31 F32 F33 F36 G30 Fan Motor Relay 9207913

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1719010100

Mercedes SLK R171 Heated Heating Seat Control Unit Module A1718201626

€47.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 1388911

BMW E36 E38 E21 E85 R52 R57 Change-Over Contact Relay Violet 1388911

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 4H0959655C

Audi A6 C7 2.0 TDI SRS Air Module Control Unit Sensor ECU 4H0959655C

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9185542

BMW X5 E70 CCC Radio CD Player Navigation 9185542

€237.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9274570

BMW F20 Head Unit Navigation GPS Sat Nav Infotainment DAB High F10 F30 9274570

€113.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7798012

BMW 1 3 5 Series E60 E87 LCI E90 E91 N47 Preheater System Starter Cable Lead

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6394407810

Wiring Loom Mercedes W639 Vito Cable Front Door Left Right N/O/S A6394407810

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 7515029

Mini Cooper One R50 R52 Petrol W10 Compact Alternator 105A 7515029

€47.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2048204697

Mercedes W204 Dashboard Dash Navigation Central Display Screen Monitor

€142.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9251748

BMW E81 E87 E90 E91 E92 LCI Combox Telematics Module Navigation 9251748

€132.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 6906618

BMW E60 E61 E63 E64 M5 M6 Power Distribution Fuse Box Rear 6906618

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8583657-1

BMW F20 E90 LCI Mini R56 LCI Glow Plug Wiring Wiring Harness Engine Module

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8574102

BMW F20 F21 F30 F31 F32 Starter Motor Engine Actuator N47N Diesel 8574102

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9119357

BMW 1 3 5 E60 E81 E87 E90 E91 Mini R55 R56 DAB Radio Tuner Module 9119357

€23.95

Free delivery: Sep 23 – 24

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Part no. 7811163

BMW 1 3 5 Series F10 F20 E90 LCI Wiring Harness Engine Glow Plug Module 7811163

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 8509722-1

Control Unit Box BMW F20 F21 F22 F30 F31 Engine Ecu Cover 8509722

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2129004407

Display Screen Mercedes W204 W212 Information Navigation Dashboard A2129018103

€42.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0035422819

Battery Relay Mercedes W176 W246 W447 Cut Off Module Control Unit A0035422819

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 1472984

Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 R61 5-Pin Black Relay Wiper 1472984

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 9176069

BMW E60 E63 E64 KBM Basis Body Control Module ECU Control Unit 9176069

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

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