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 6 E64 E64N LCI Convertible Suppression Filter Aerial Module Antenna 6951855

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8507893

BMW 1 2 3 Series F20 F21 F22 F30 F31 N47N Wiring Loom Harness Engine 8507893

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8510221-6

BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key

€108.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7634063

Gearbox Wiring BMW F10 F11 520i 528i N20 Automatic Engine Loom Harness 7634063

€75.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9315150

BMW X3 F25 Front Distribution Box Fuse Box Power Control Unit 9315150

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6864924

BMW F10 Active Hybrid SRS Air Module Control Module Unit 6864924

€70.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8579478

BMW F20 F30 F32 120dX 320dX 420dX Diesel N47N 184HP ECU Unit DDE 8579478 Manual

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7519051

BMW 7 Series E65 E66 E67 Electric valve 735i 745i 735Li 745Li 745LiS

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6972611

BMW 5 Series E60 E61 Wiring Rear Left Right Door Cable Harness N/O/S 6982362

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A43722

BMW X1 U11 Wiring Loom Harness Cable 5A43722

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9350332

Head Unit BMW F30 F31 F32 X3 F25 Navigation Sat Nav Basic Media Player 9350332

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9354068

BMW F45 F46 Door Interior Lighting Wiring Harness Cable Front Right O/S 9354068

€28.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 8517616

Earth Ground Cable BMW F10 N47N Diesel Battery Cable Engine Wiring 8517616

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9159034

BMW 1 Series E87 LCI CCC CD Professional Navigation System Controller 9159034

€265.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7591981

BMW F87 N55 Engine Bay Wiring Loom Harness Loom Cable Engine Gearbox 7591981

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7794911

BMW E87 E90 E91 Cable Alternator Starter Base B 7794911

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6989068

BMW 5 X5 Series E53 E60 E61 PDC Parking Ultrasonic Sensor Rear Black 6989068

€26.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8517874-8

BMW F20 118d F30 318d N47N 143HP Engine ECU Kit DDE 8517874 + Key + FEM + Lock

€222.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9354069

BMW F45 F46 Door Interior Lighting Wiring Harness Cable Front Left N/S 9354069

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7361970

BMW F10 F10 LCI Trunk Function Module Tailgate Boot Control Unit ECU 7361970

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8507915

Engine Wiring BMW F20 F30 N47S1 EU5 Loom Module Harness Cable 8507915

€75.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9259999

BMW F30 Door Wiring Loom Harness Cable Front Passenger's Side N/S 9259999

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8577862-1

BMW X5 F15 40dX N57 313HP Engine Control Module ECU DDE Kit 8577862 FEM Key

€522.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6824492

BMW G31 Touring Rear Bumper PDC Wire Harness Loom Cable 6824492 11107811 6824493

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6940623

BMW 1 3 Series E81 E82 E84 E87 E90 E91 PDC Parking Ultrasonic Sensor Quartz Blue

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9153802

BMW X5 E70 Footwell Light Module Control Unit ECU FRM II NSW Lear 9153802

€146.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9364999

BMW X5 F15 F85 Front Seat Wiring Loom Harness Cable 9364999

€80.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9134631

Seat Module BMW E65 E66 Front Seat Control Unit ECU 9134631

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6936103

BMW 5 Series E60 Light Control Module Unit Lear LME6X MAN. LWR (LCM) 6936103

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9112463

BMW Z4 E46 E89 Mini R50 R52 Parking Control Module Unit PDC 9112463

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9330951

Control Unit BMW F01 F07 F10 F11 F25 Air Module ECU Unit Continental 9330951

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9299335

BMW F01 F02 F07 F10 F11 CAS4 Control Unit Key Reading Module 9299335

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A234D0

Wiring Cable BMW F06 F12 F13 Electric Parking Hand Brake Handbrake Cable 5A234D0

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8576333-3

BMW F20 F30 F32 120dX 320dX 420dX Diesel N47N 184HP ECU Kit DDE 8576333 Key FEM

€275.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9232527

BMW F10 F11 Rear Bumper PDC Wiring Loom Cable Harness 9232527

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A17B00

BMW G20 Body Control Module BDC BDC-03 330i B48D B48B20B 2.0 Petrol 5A17B00

€180.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8379375

BMW X5 E53 Loudspeaker Loud Speaker Tweeter Front 65138379375 8379375

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6990089-1

BMW 6 X3 Series E63 E83 Radio Antenna Amplifier Suppression Filter

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6878191

Air Module BMW F01 F02 LCI F10 F11 F13 ECU ICM Control Unit 6878191

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9319081

BMW F20 F21 F22 F30 F31 F32 Radio Remote Control Receiver 434 MHZ

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 2990003-3

BMW X1 E84 Headlight Lamp Light Front Cable Wire Plug Left N/S 2990003

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7811232

BMW X3 F25 Engine Wiring Start/Stop Manual Gearbox Module Loom Cable 7811232

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9149674

BMW 3 5 Series E60 E90 Portable DVD System Alarm Ultra Sonic Module Unit 6980090

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6938226

BMW 3 Series E90 E91 Cable Wiring Loom Rear Door Left Right 61126938226 6938249

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6968650

BMW 3 Series E93 E93N LCI Aerial Antenna Amplifier FM/AM Right O/S 6968650

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6986077

BMW E81 E87 E90 E91 E92 6-disc CD Changer Without Magazine 6986077

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6941485

BMW X5 X3 E53 E83 Control Module Unit Sliding Lifting Roof

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6855558

BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6855558

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5B5D979

BMW F74 M235iX B48R 300HP Engine Control Unit ECU Set DME 5B5D979 Automatic

€731.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8795213

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

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7311030-2

BMW F45 Rear Light Lamp Trim In The Side Panel Wiring Cable Right O/S 7311030

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9267516

BMW F10 Central Gateway Module Control Unit Lear ZGW-02 MID Plus 9267516

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9261111

BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear 9261111

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9337881

BMW 1 3 4 F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear 9337881

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7810863

Battery Cable BMW X3 F25 Wire Lead Positive Alternator Starter B+ 7810863

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8689722-2

BMW F32 Engine ECU Control Unit 184 HP 420iX B48 2.0 Petrol B48 8689722 KIT

€550.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8835156

BMW U06 X1 U11 High-Voltage Battery Radiator Cooler Line Hose Tube Pipe 8835156

€560.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6947216

BMW 3 Series E93 Convertible Rear Bumper FM Radio Aerial Antenna 6947216

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9131850

CD Changer BMW E60 E61 E63 6-DISC Compact without Magazine 9131850

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7928461

BMW G11 G12 G29 G31 G38 Radio Remote Control Receiver Module Unit 7928461

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8621490

Alternator Cable BMW F21 F22 F30 LCI 125i 220i 228i 320i N20 Starter 8621490

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9483099

Mini Cooper One F55 F56 F57 Parking Assistant Control Unit Module 9483099

€61.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7856771

Injection Wiring BMW F90 M5 F91 M8 S63M Cyl. 1-4 Loom Valve Ignition 7856771

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A656B3

BMW G20 Air Module Control Unit SRS ECU 5A656B3

€189.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7369120-2

BMW F30 F31 LCI Plug Socket Rear Right O/S Light Trunk Lid Boot Wiring 6984754

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8368231

BMW E46 Door Speaker Tweeter Front Left N/S 8368231

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9181454

BMW X1 E84 Aerial Antenna Noise Suppression Filter 9181454

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9343259

B+ Distribution Box BMW X3 F25 Battery Power Red Rear Control Unit 9206140

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8506373-1

BMW X3 E83 LCI 1.8d N47 Engine Control Unit ECU Kit Module DDE 8506373 EWS Key

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6842253

BMW F48 F45 Mini F55 Front Air Module Control Unit ECU 6842253

€132.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6842527

BMW G20 Battery Terminal Voltage Distribution Box 400W MID 6842527

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9240490

Battery Distribution Box BMW F01 F02 F10 F11 Power B+ Rear 9240490

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9317866

BMW 3 Series F30 330e Hybrid Battery Accumulator Bracket Holder Mount 9317866

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6989713

BMW 1 3 Z4 Series E88 E89 E93 Convertible Cabrio DWA-Alarm System Module 6989713

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9284442

BMW F20 F30 Mini F56 Air Conditioning Module Control Unit 9284442

€32.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 9276036

BMW 5 Series F11 Touring Antenna Aeral Amplifier Diversity 868 MHZ 9276036

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9387164

BMW X3 F25 Front Lamp Headlight Control Module Unit ECU 9387164

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6988965

BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Spacegrau 6988965

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9296981

Battery Cable Mini F55 F56 BMW X2 F39 Diesel B37 Positive Cable Wiring 9296981

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9276009

BMW F07 GT Rear Antenna Aerial Amplifier AM/FM DABIII FBD2 868MHZ 9237057

€180.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8631637

Earth Ground Cable BMW i3 I01 Battery Starter Terminal Wiring 8631637

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9391253

BMW F10 F11 Wiring Cable Loom 9391253 9391252

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9348356

BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9348356

€118.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9500079

BMW X2 F39 F40 F45 F45 LCI F46 F48 Steering Control Module SAS Unit ECU 9500079

€184.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9297897

BMX X4 F26 X6 F16 Cental Woofer Speaker Audio Unit Left Right N/O/S 9297897

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8741637

BMW X1 F40 F48 Mini F55 F56 F57 F60 Earth Cable Battery Cable 8741637

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6820234

Air Conditioning Module BMW F20 F21 F30 F31 A/C Control Unit 6820234

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9364669

BMW F10 F11 LCI Active Sound Unit Control Module Design Amplifier 9337754

€61.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8593105

BMW G30 G11 G14 Diesel B57 Wiring Glow Plugs Module Wiring Harness 8593105

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9224177-1

BMW F10 F11 F12 F13 F15 F16 Air Module Crash Sensor 9224177

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9226333-1

BMW E88 Cabrio ECU Body Control Module H3 Junction Box 9226333

€51.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6938226-1

BMW E90 E90N E91 E91N LCI M3 Wiring loom rear door left right 6938225

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7411595

BMW F10 F20 F30 Control Unit For Fuel Pump Module 7411595

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8046454

BMW E81 E82 E87 E90 PDC Ultrasonic Sensor Front Rear Melbourne Red - A75 8046453

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A02F94

PDC Module BMW F45 X3 F25 Mini F55 F56 F60 Parking Distance Sensor Unit 5A02F94

€51.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9146329-1

BMW X5 E60 E61 E65 E70 Front Left N/S Seat Angle Adjustment Drive 9146329

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9228495

BMW F07 GT ECU Body Control Module Junction Box V12 PL2 JBBFE III 9228495

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

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