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 F10 Footwell Light Module Control Unit ECU FRM III 9236460

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6926962

BMW E60 E61 Front Seat Adjustment Switch Right O/S 6926962 6930048

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9382417

BMW 1 2 3 5 F10 F20 F23 F30 Bluetooth Teleservices GPS Telematics Module 9382417

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7549284

BMW 1 3 Series E87 E90 118i 318i N46 Wiring Loom Cable Harness Engine Gearbox

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8574351

BMW X1 E84 16d 18d 18dX Diesel N47N Engine Control Unit ECU DDE 8574351 Manual

£80.95

Free delivery: Aug 28

If paid before 14:00

Part no. RHD-3448327

BMW X3 E83 LCI Instrument Cluster Speedo Clocks Diesel Manual 3448327

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6855951

BMW F10 F11 F13 F06 VDC Module Rear Suspension Level Control Unit Module 6855951

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9387561

Head Unit BMW I3 I8 Mini F56 Navigation Sat Nav DAB High Control Module 9387561

£189.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9196669

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

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7648785

BMW i3 i01 Battery Cell Module Supervision Circuit Control Unit 7648785

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9186664

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186664

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7646814

BMW F10 F20 LCI F30 B47 Diesel Alternator Generator Denso 210A 7646814

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9224673

BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9224673

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8373700-3

BMW E60 E63 E87 E90 E91 5X Relay Make Contact White Green Set 8373700

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9484301

BMW F45 X1 F48 Mini F54 F55 F56 Air Module Control Unit ECU 9484301

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9127895

BMW E88 Convertible Antenna Aerial DAB Rear Trunk Tailgate 9127895

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7259877

Third Stoplamp Cover BMW F30 F80 M3 Rear Stop Lamp Brake Trim 7259877

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7514342

BMW E34 Z4 E85 Base B Terminal Point Engine Compartment 7514342

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9393675

BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V8 Lear 9393675

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9229837

BMW X5 E70 LCI ECU Body Control Module PL4 JBBFE III Junction Box 9229837

£89.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6974631

BMW Z4 Z3 Series E36 E85 Module Radar Burglar Alarm Sensor

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7599881-1

BMW E87 LCI E90 E91 118i 318i Petrol N43 143HP ECU KIT DME 7599881 CAS3 + Key

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. RHD-7570550

Manual Gearbox Wiring Harness BMW E81 E87 E90 E91 N43 Loom Cable 7570550

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3412574

BMW X3 Series E83 Rear Left Right Door N/O/S Wiring Loom Cables 3412574

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6928050

BMW 7 Series E65 E66 E67 Battery Cable Wire Earth Ground Minus Negative L=260MM

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8092583

Differential Lock Module BMW F10 M5 F80 M3 Rear Axle Control Unit ECU 8092583

£51.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6942908

BMW 3 X3 Series E46 E83 Navigation Computer GPS System DVD Player Unit 6942908

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9338800

iDrive Control Unit BMW F10 F20 F30 Touch Controller Module ECU 9338800

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9344840

BMW 3 4 Series F80 M3 F82 M4 Adapter Lead Fanfare Horn Cable 9344840

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9326437

BMW F30 F31 Wiring Passenger Loom Front Door Cables Harness 9286241

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7559178-3

BMW E60 E61 530i E90 E91 330i N52 258HP Engine ECU Kit DME 7559178 CAS2 2 Keys

£379.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7174403-5

BMW E92 Coupe Rear Light Lamp Plug Socket Wiring Left N/S 6984754

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9257426

Fuse Box Grouping BMW F10 F11 Fuse Placement Map Card Diagram 9257426

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9339274

CAS4 Module BMW F01 F07 F10 F11 F12 X3 F25 Key Reading Control Unit 9339274

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9224592

BMW 1 Series E87 Footwell Light Module Control Unit PL2 FRM3R 9224592

£85.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6970908

BMW E65 E66 Sensor Front Right Door Airbag O/S 6970908

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8380407

BMW X5 Series E53 Power Distribution Fusebox Cover Fuse Box 8380407

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8385159

BMW 3 X3 Series E46 E83 Battery Cable Holder Mounting B Base 8385159

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9230944

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9230944

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9189850

BMW Z4 Series E89 Convertible Positive Battery Cable Wiring Lead 9189850

£99.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-9188745

BMW X5 X6 Series E70 E71 Cable Loom Wiring Set Seat Passenger's Side 9188745

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9367837

Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Control Unit ECU 9367837

£142.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. rhd-9201489

BMW F01 F02 F10 LCI Operating Unit Centre Console Switch Control Module 9201489

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9267516

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

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9177209-2

BMW 1 3 X1 E81 E82 E84 E87 E90 E91 E92 2 Radio Business CD Audio Player 9177209

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6913896

BMW Z4 E85 E86 Aerial Antenna Amplifier Module Rod 6913896

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6840519

Negative Lead Battery Cable BMW G11 G30 G31 X3 G01 IBS Wiring Harness 6840519

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6985748

BMW 5 Series E60 E61 Centre Console Switch Centre DTC PDC 6985748

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7810860-1

BMW 3 Series E90 E91 E92 E93 LCI N47N Engine Alternator Starter Cable B 7810860

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9227179

BMW 1 Series E81 Body Control Module ECU L2 PL2RR JBBFE Junction Box 9227179

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 2154179

BMW 1 3 5 Series E60 E87 E90 E91 Cable Adapter iPod Connection 2154179

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8612576

BMW X1 F30 F31 LCI Starter Motor Engine 8612576

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6840399

Head Unit BMW F20 F21 F22 F30 F31 Radio CD Navigation Business GPS 6840399

£189.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6825541

BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 6825541

£61.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9152262-1

BMW X5 X6 E70 E71 Front Impact Crash Sensor Module 9152262

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9890599

BMW F90 M5 G11 G30 Air Module Crash Control Unit 9890599

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7595847

BMW X5 X6 E70 E71 Rear Differential Control Module Unit QMV 7595847

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6857701

BMW 1 2 3 F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6857701

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7804110

BMW 5 Series F10 F11 LCI Earth Cable Battery Cable 7804110

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7533651-5

BMW E60 525i M54 192HP ECU Engine Control Unit Module DME 7533651 Automatic

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7248911-1

BMW F20 F21 F22 F30 F31 Fog Light Lamp Wiring Harness Plug Left N/S 7248911

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9163348

BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9163348

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3424581

BMW X3 E83 Air Module Control Unit ECU 65773424581 3424581

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8510221

BMW E90 E91 LCI E92 330d Diesel N57 Engine Control Unit DDE 8510221 Automatic

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9174269

BMW F07 F10 F11 Speakers Amplifier Bracket Holder Mount Unit Module 9174269

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9212916

BMW 5 7 X5 E70 F01 F02 F10 F11 Rain / Light / Solar Fogging Sensor 9212916

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6900583

BMW E65 E66 Power Distribution Box 6900583

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6870517

BMW F30 F31 F32 Towing Hitch Trailer Hook Module Control Unit 6870517

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6965406

Hands Free Control BMW E81 E87 E90 Electronics Charging Module MULF 6965406

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9111165-PB

BMW E81 E82 E87 E88 E90 E91 Ultrasonic Sensor PDC Platinbronze A53 9111165

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6925936

BMW 5 Series E60 E61 Wiring Loom Harness Co-Drivers Passenger Side 6925936

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9357988

Head Unit BMW F30 F31 F32 Radio Professional CD Player Control Module 9357988

£70.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-8570580

Gearbox Wiring BMW E70 LCI E71 N57 N57S Engine Loom Harness Cables 8570580

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3453587

BMW X3 E83 LCI N47 Diesel Cable Alternator Starter Base B 3453587

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9168335

BMW X1 E84 Antenna Amplifier Diversity 868 MHZ 9168335

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8645514

BMW X3 F25 X5 F15 X6 F16 Integrated Power Distribution Supply Module Box 8645514

£113.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9370431

BMW X1 Series F48 KaFAS Camera Assist Speed Limit Control 9370431

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9289583

BMW X1 E84 Display Screen Dashboard Navigation Monitor On-Board CID 6,5" 9289583

£142.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9289637

BMW F10 Rear Window Parcel Shelf Loudspeaker Speaker Left Right N/O/S 9289637

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6842253

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

£113.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. rhd-8511683

BMW 3 Series E90 E91 E92 E93 LCI 320d N47N Engine Wiring Loom Harnes DDE 8511683

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9174269-1

BMW F07 F10 F11 Speakers Amplifier Bracket Holder Mount Unit Module 9174269

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9247383

Air Module Control BMW X3 F25 F12 F13 Air Module Unit ECU9247383

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9329339

BMW F32 Telematics Telephone Control Unit Module Bluetooth TCB ECE 9329339

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9216128

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

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7803373-1

BMW E60 E87 E90 E91 120d 320d 520d M47N2 163HP ECU Kit DDE 7803373 CAS3 + Key

£189.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9195246

Electronics Charging BMW E81 E87 E90 E91 Hands Free MULF2 9195246

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9230046

BMW 1 2 SERIES F20 F20N F21 F22 UNDER CAR POSITIVE BATTERY LEAD CABLE 9230046

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. RHD-5A065D4

BMW F40 F44 Multimedia Radio Sat Nav Screen Display Head Unit 5A065D4 12822810

£85.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-6928971

BMW 6 Series E63 E64 Driver Side Door Cable Harness Wiring 6928971

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6864927

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

£13.95

Free delivery: Aug 28

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

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-7548982

BMW 3 Series E87 E90 E91 120i 320i N46 Wiring Loom Harness Engine Gearbox Module

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8512411-1

BMW X5 E70 LCI 40dX N57S 306HP Engine ECU KIT DDE 8512411 CAS3 Key Automatic

£303.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9186655

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186655

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9491419

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

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6946388

BMW 5 6 Series E60 E61 E63 ECU Control Unit Gateway Module 6946388

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7428425-3

Headlight Module BMW F20 F21 LCI Front Lamp Hedlamp LED Control Unit 7428425

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7537612-1

BMW X5 E53 E60 E81 E87 E90 Engine Vacuum Control Electric Valve 7537612

£13.95

Free delivery: Aug 28

If paid before 14:00

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