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 E90 E91 E92 E93 LCI Diesel N57 Alternator 150A 7808073 7805432

Part no. 7808073

BMW E90 E91 E92 E93 LCI Diesel N57 Alternator 150A 7808073 7805432

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Mercedes W176 W246 Backup Battery Negative Minus Terminal Lead A2469069600

Part no. A2469069600

Mercedes W176 W246 Backup Battery Negative Minus Terminal Lead A2469069600

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BMW 1 3 X1 SERIES E81 E87 E88 E90 E91 Parking Control Module Unit PDC 6947796

Part no. 6947796

BMW 1 3 X1 SERIES E81 E87 E88 E90 E91 Parking Control Module Unit PDC 6947796

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BMW F01 F10 F11 LCI IBS Negative Battery Lead Cable 9234437

Part no. 9234437

BMW F01 F10 F11 LCI IBS Negative Battery Lead Cable 9234437

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BMW F10 F20 F30 F32 Fuel Pump Control Module Unit 7426095

Part no. 7426095

BMW F10 F20 F30 F32 Fuel Pump Control Module Unit 7426095

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Mercedes W169 W245 Petrol Engine Starter Motor M266 A0061510301

Part no. A0061510301

Mercedes W169 W245 Petrol Engine Starter Motor M266 A0061510301

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BMW 3 Series E91 E92 E93 Hifi Speaker Tweeter Rear 6942461

Part no. 6942461

BMW 3 Series E91 E92 E93 Hifi Speaker Tweeter Rear 6942461

Product currently unavailable

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BMW 1 Series 1 E81 E87 Wiring Loom Set PDC Rear Complete Harness Parking Sensor

Part no. E81 E87 Wiring Loom Set PDC rear

BMW 1 Series 1 E81 E87 Wiring Loom Set PDC Rear Complete Harness Parking Sensor

Product currently unavailable

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Mini Cooper One R50 Fuel Filler Cover Flap 0148459 Chili Red - 851

Part no. 0148459-CHRED

Mini Cooper One R50 Fuel Filler Cover Flap 0148459 Chili Red - 851

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BMW X3 E60 E61 E83 PDC Parking Ultrasonic Sensor Rear Montegoblau Blue A51

Part no. 6989241

BMW X3 E60 E61 E83 PDC Parking Ultrasonic Sensor Rear Montegoblau Blue A51

Product currently unavailable

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HiFi Speaker BMW X5 E70 X6 E71 X3 E83 Top HiFi Sound Unit Door Card 6949734

Part no. 9151864-1

HiFi Speaker BMW X5 E70 X6 E71 X3 E83 Top HiFi Sound Unit Door Card 6949734

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

Part no. 7490465

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

Product currently unavailable

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BMW 5 Series E60 E61 LCI Rear Bumper PDC Ultrasonic Sensor Interlagos Blau Blue

Part no. 6989210

BMW 5 Series E60 E61 LCI Rear Bumper PDC Ultrasonic Sensor Interlagos Blau Blue

Product currently unavailable

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BMW 5 6 Series E60 E61 E63 E64 LCI CD Changer Cartridge Magazine 9129433

Part no. 9129433

BMW 5 6 Series E60 E61 E63 E64 LCI CD Changer Cartridge Magazine 9129433

Product currently unavailable

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Mercedes W176 Front Pressure Impact Crash Sensor Unit Module

Part no. A1769051600

Mercedes W176 Front Pressure Impact Crash Sensor Unit Module

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BMW X5 E53 E65 Bulb Parking Light Headlight Front Lighting 12V 10W

Part no. 6916097

BMW X5 E53 E65 Bulb Parking Light Headlight Front Lighting 12V 10W

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BMW E87 ECU Body Control Module L2 ECU Junction Box 6971961

Part no. 6971961

BMW E87 ECU Body Control Module L2 ECU Junction Box 6971961

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Mercedes W177 W247 Positive Battery Cable Lead Wire Starter A1775407932

Part no. A1775407932

Mercedes W177 W247 Positive Battery Cable Lead Wire Starter A1775407932

Product currently unavailable

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Alternator Generator Mercedes W176 W246 Diesel Engine Bosch 175A A0009063822

Part no. A0009063822

Alternator Generator Mercedes W176 W246 Diesel Engine Bosch 175A A0009063822

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Distributor Box Mercedes W204 W212 W906 Front Block Control Unit A0045468240

Part no. A0045468240

Distributor Box Mercedes W204 W212 W906 Front Block Control Unit A0045468240

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Alternator Mercedes W204 W212 Diesel Engine OM651 Valeo 180A A0009067900

Part no. A0009067900

Alternator Mercedes W204 W212 Diesel Engine OM651 Valeo 180A A0009067900

Product currently unavailable

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BMW E46 E60 E61 E65 E83 E53 M57N Engine Starter Motor 63223537

Part no. 7788680-2

BMW E46 E60 E61 E65 E83 E53 M57N Engine Starter Motor 63223537

Product currently unavailable

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BMW E60 E61 E63 E64 Power Distribution Fuse Relay Box Rear 6906588

Part no. 6906588

BMW E60 E61 E63 E64 Power Distribution Fuse Relay Box Rear 6906588

Product currently unavailable

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BMW E87 E90 LCI Car Radio Professional CD Radio Head Unit Bluetooth 9246502

Part no. 9246502

BMW E87 E90 LCI Car Radio Professional CD Radio Head Unit Bluetooth 9246502

Product currently unavailable

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Mini Cooper R55 R56 R57 LCI Steering Wheel Driver's Side Air Module 6791372

Part no. 6791372

Mini Cooper R55 R56 R57 LCI Steering Wheel Driver's Side Air Module 6791372

Product currently unavailable

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Mercedes Sprinter W906 ECU Control Unit Sensor Module A9064461442

Part no. A9064461442

Mercedes Sprinter W906 ECU Control Unit Sensor Module A9064461442

Product currently unavailable

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Mini Cooper R52 Cabrio Aerial Base Roof Antenna 6929760

Part no. 6929760

Mini Cooper R52 Cabrio Aerial Base Roof Antenna 6929760

Product currently unavailable

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Audi Q3 8U Parking Brake Handbrake Module Control Unit 3AA907801H

Part no. 3AA907801H

Audi Q3 8U Parking Brake Handbrake Module Control Unit 3AA907801H

Product currently unavailable

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BMW F07 F10 F11 F12 F13 Battery Cable Wiring Plus Pole 9217036

Part no. 9217036

BMW F07 F10 F11 F12 F13 Battery Cable Wiring Plus Pole 9217036

Product currently unavailable

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Mini Cooper R50 R52 Power Steering Pump Power Cables 7530354

Part no. 7530354

Mini Cooper R50 R52 Power Steering Pump Power Cables 7530354

Product currently unavailable

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Renault Trafic Vauxhall Vivaro Relay 4-Pin Blue Unit 252301716R

Part no. 252301716R

Renault Trafic Vauxhall Vivaro Relay 4-Pin Blue Unit 252301716R

Product currently unavailable

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Module Mercedes C205 Front Door Right O/S Control Module Unit A2229001614

Part no. A2229001614

Module Mercedes C205 Front Door Right O/S Control Module Unit A2229001614

Product currently unavailable

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Mercedes W169 Front Bumper Parking Distance Sensor Parktronic Polar Silver 761

Part no. A1695420018-PLS

Mercedes W169 Front Bumper Parking Distance Sensor Parktronic Polar Silver 761

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Parking  Sensor Mercedes W169 W204 W212 PDC Sensor Front Mountain Gray 787

Part no. A2215420417-MB

Parking Sensor Mercedes W169 W204 W212 PDC Sensor Front Mountain Gray 787

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BMW E81 E82 X1 E84 E87 E90 E91 E92 Power Distribution Box Black 6942912

Part no. 6942912-1

BMW E81 E82 X1 E84 E87 E90 E91 E92 Power Distribution Box Black 6942912

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BMW E87 LCI ECU Body Control Unit Module Junction Box H2 9229878

Part no. 9229878-1

BMW E87 LCI ECU Body Control Unit Module Junction Box H2 9229878

Product currently unavailable

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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9329700

Part no. 9329700

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9329700

Product currently unavailable

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BMW 1 3 5 6 X1 X3 X5 X6 Z4 Series Relay Change Over Contact Silent Blue 6918816

Part no. 6918816

BMW 1 3 5 6 X1 X3 X5 X6 Z4 Series Relay Change Over Contact Silent Blue 6918816

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BMW 1 3 5 6 7 X1 X3 X5 X6 Series E81 E87 E90 Cable Audio Aux In Socket 178cm

Part no. E87 E90 Cable Aux 178cm

BMW 1 3 5 6 7 X1 X3 X5 X6 Series E81 E87 E90 Cable Audio Aux In Socket 178cm

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Engine Wiring BMW F20 F30 LCI 118d 318d B47 Loom Harness Cable 8516259

Part no. 8516259

Engine Wiring BMW F20 F30 LCI 118d 318d B47 Loom Harness Cable 8516259

Product currently unavailable

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BMW 3 Series E46 Saloon Cable Door Rear Left Right N/O/S Wiring Harness 6913084

Part no. 6913085

BMW 3 Series E46 Saloon Cable Door Rear Left Right N/O/S Wiring Harness 6913084

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BMW F20 F21 F23 F30 F31 F32 Telematics Control Unit Module ATM ECE 4G 2622598

Part no. 2622598

BMW F20 F21 F23 F30 F31 F32 Telematics Control Unit Module ATM ECE 4G 2622598

Product currently unavailable

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BMW E87 E90 LCI Alternator Generator Bosch 150A Petrol Engine EAL1179

Part no. 7532966-1

BMW E87 E90 LCI Alternator Generator Bosch 150A Petrol Engine EAL1179

Product currently unavailable

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Mercedes Sprinter W906 Turn Rate Sensor Module Control Unit A0065424218

Part no. A0065424218

Mercedes Sprinter W906 Turn Rate Sensor Module Control Unit A0065424218

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BMW E46 E83 Basic Body Control Unit Module GM5 Star12 9161931

Part no. 9161931

BMW E46 E83 Basic Body Control Unit Module GM5 Star12 9161931

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BMW X3 X5 X6 E60 E61 LCI E70 E71 F01 F02 F25 Rain Light Solar Sensor

Part no. 9201989

BMW X3 X5 X6 E60 E61 LCI E70 E71 F01 F02 F25 Rain Light Solar Sensor

Product currently unavailable

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BMW 1 3 Series E81 E87 LCI E88 E90 M3 E92 Speed Cluster Sensor 6780334

Part no. 6850375

BMW 1 3 Series E81 E87 LCI E88 E90 M3 E92 Speed Cluster Sensor 6780334

Product currently unavailable

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Bluetooth Control Unit BMW E60 E87 E90 Telematics Module ECU 9224422

Part no. 9224422

Bluetooth Control Unit BMW E60 E87 E90 Telematics Module ECU 9224422

Product currently unavailable

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BMW E46 E60 E83 E90 E91 Diesel M57N M57N2 Glow Plug Preheating Control Module

Part no. 7788327-1

BMW E46 E60 E83 E90 E91 Diesel M57N M57N2 Glow Plug Preheating Control Module

Product currently unavailable

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Mini R55 R56 R60 R61 Roof Operating Unit Light Switch 3455632

Part no. 9284331-1

Mini R55 R56 R60 R61 Roof Operating Unit Light Switch 3455632

Product currently unavailable

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Audi A4 B8 A5 8T Parking Module Electric Brake Control Unit 8K0907801H

Part no. 8K0907801H

Audi A4 B8 A5 8T Parking Module Electric Brake Control Unit 8K0907801H

Product currently unavailable

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BMW E90 Radio Professional CD Player 6983018 65126983018

Part no. 6983018

BMW E90 Radio Professional CD Player 6983018 65126983018

Product currently unavailable

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Mini Cooper One R50 R52 R53 Front Loudspeaker Speaker 6801102

Part no. 6801102

Mini Cooper One R50 R52 R53 Front Loudspeaker Speaker 6801102

Product currently unavailable

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BMW E90 LCI Footwell Light Control Module LCM LED Basis 9240530

Part no. 9240530

BMW E90 LCI Footwell Light Control Module LCM LED Basis 9240530

Product currently unavailable

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BMW X5 E53 Basic Body Control Unit Module GM3 6946947

Part no. 6946947

BMW X5 E53 Basic Body Control Unit Module GM3 6946947

Product currently unavailable

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BMW X3 E83 Light Lamp Switch Wiring Wire Cable Plug 3405795

Part no. 3412531

BMW X3 E83 Light Lamp Switch Wiring Wire Cable Plug 3405795

Product currently unavailable

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

Part no. 7160897-1

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

Product currently unavailable

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BMW 5 6 7 E60 E63 E65 Adaptive Light Control Unit Module LM E6X 9153273

Part no. 9203082-1

BMW 5 6 7 E60 E63 E65 Adaptive Light Control Unit Module LM E6X 9153273

Product currently unavailable

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Renault Trafic II Vauxhall Vivaro A 2.0 DCI Alternator Generator 8200404459G

Part no. 8200404459G

Renault Trafic II Vauxhall Vivaro A 2.0 DCI Alternator Generator 8200404459G

Product currently unavailable

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Volkswagen Tiguan 5N Engine Starter Motor 02M911024C

Part no. 02M911024C

Volkswagen Tiguan 5N Engine Starter Motor 02M911024C

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Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit

Part no. 7788680-3

Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit

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Mercedes Vito W639 Positive Battery Terminal Cover Cap Trim Red A6395450191

Part no. A6395450191

Mercedes Vito W639 Positive Battery Terminal Cover Cap Trim Red A6395450191

Product currently unavailable

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BMW 3 5 6 Series E60 E63 R50 R52 Relay Make Contact Orange 8366646

Part no. 8366646

BMW 3 5 6 Series E60 E63 R50 R52 Relay Make Contact Orange 8366646

Product currently unavailable

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BMW E60 E61 E63 E64 Fuel Fillter Flap Cover Actuator 8377415

Part no. 8377415

BMW E60 E61 E63 E64 Fuel Fillter Flap Cover Actuator 8377415

Product currently unavailable

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BMW E90 E92 E93 Switch Cluster Steering Column Cruise Control 9110887

Part no. 9110887

BMW E90 E92 E93 Switch Cluster Steering Column Cruise Control 9110887

Product currently unavailable

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Rear Bumper PDC BMW E65 E66 Front Ultrasonic Sensor Schwarz 2 Black 668

Part no. 6989169

Rear Bumper PDC BMW E65 E66 Front Ultrasonic Sensor Schwarz 2 Black 668

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BMW E90 E91 E92 Longitudinal Dynamic Module Cruise Control 6775949

Part no. 6775949

BMW E90 E91 E92 Longitudinal Dynamic Module Cruise Control 6775949

Product currently unavailable

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Audi A4 B8 A5 8T TT Mk2 Negative Battery Terminal Cable Lead 8X0915181

Part no. 8X0915181

Audi A4 B8 A5 8T TT Mk2 Negative Battery Terminal Cable Lead 8X0915181

Product currently unavailable

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BMW E60 E61 E63 E65 PDC Parking Control Module Unit ECU 9145158

Part no. 9145158

BMW E60 E61 E63 E65 PDC Parking Control Module Unit ECU 9145158

Product currently unavailable

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BMW E46 E60 E61 E65 E83 E53 M57N Starter Motor LRS01964BN

Part no. 7788680-1

BMW E46 E60 E61 E65 E83 E53 M57N Starter Motor LRS01964BN

Product currently unavailable

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BMW Mini Cooper One R56 Footwell Light Module LOW ECU PL3 FRM II 3450938

Part no. 3450938

BMW Mini Cooper One R56 Footwell Light Module LOW ECU PL3 FRM II 3450938

Product currently unavailable

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Mini Cooper One R50 R52 Air Intake Silencer Filter Box 1477831

Part no. 1477831-1

Mini Cooper One R50 R52 Air Intake Silencer Filter Box 1477831

Product currently unavailable

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Wiring Harness Mercedes W203 M271 Kompressor Petrol Engine Camshaft A2711502733

Part no. A2711502733

Wiring Harness Mercedes W203 M271 Kompressor Petrol Engine Camshaft A2711502733

Product currently unavailable

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BMW E60 E61 E90 E91 LCI Display Screen 8.8" Monitor Sat Nav 9211969

Part no. 9211969-1

BMW E60 E61 E90 E91 LCI Display Screen 8.8" Monitor Sat Nav 9211969

Product currently unavailable

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Mercedes-Benz Sprinter W906 Rear Door Licence Plate Lighting Wiring Cable

Part no. A9065400113

Mercedes-Benz Sprinter W906 Rear Door Licence Plate Lighting Wiring Cable

Product currently unavailable

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Audi A4 B8 2.0 TFSI Petrol Engine Starter Motor 06H911021

Part no. 06H911021

Audi A4 B8 2.0 TFSI Petrol Engine Starter Motor 06H911021

Product currently unavailable

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Mercedes ML W164 GL X164 Fuse Box Cover Trim Panel Cap A1645400182

Part no. A1645400182

Mercedes ML W164 GL X164 Fuse Box Cover Trim Panel Cap A1645400182

Product currently unavailable

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BMW F20 F21 F30 Sensor Rain Light Solar Condensation 9387624

Part no. 9387624

BMW F20 F21 F30 Sensor Rain Light Solar Condensation 9387624

Product currently unavailable

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Fuse Box Mercedes Sprinter W907 W910 Relay Box Fuse Box Module A9075450100

Part no. A9075450100

Fuse Box Mercedes Sprinter W907 W910 Relay Box Fuse Box Module A9075450100

Product currently unavailable

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BMW F31 Body Control Unit Module HKFM 7388490 0066245503 F005V01610

Part no. 7388490

BMW F31 Body Control Unit Module HKFM 7388490 0066245503 F005V01610

Product currently unavailable

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Mercedes-Benz Vito Viano W639 Alternator Generator Diesel 200A A0131541002

Part no. A0131541002

Mercedes-Benz Vito Viano W639 Alternator Generator Diesel 200A A0131541002

Product currently unavailable

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Audi Q7 4M Front PDC Parking Distance Sensor Mythical Black Metallic - Y9T

Part no. 5Q1919275C-MYB

Audi Q7 4M Front PDC Parking Distance Sensor Mythical Black Metallic - Y9T

Product currently unavailable

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BMW F45 F46 F48 Battery Cable IBS Negative Battery Lead 6821206

Part no. 6821206

BMW F45 F46 F48 Battery Cable IBS Negative Battery Lead 6821206

Product currently unavailable

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Positive Battery Cable BMW F30 F31 F80 M3 F82 M4 Plus Pole Power Red 9259425

Part no. 9259425-2

Positive Battery Cable BMW F30 F31 F80 M3 F82 M4 Plus Pole Power Red 9259425

Product currently unavailable

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Audio Speaker BMW F20 F21 F23 F30 Mid-Range Sound Speaker Stereo HiFi 9288769

Part no. 9288769-1

Audio Speaker BMW F20 F21 F23 F30 Mid-Range Sound Speaker Stereo HiFi 9288769

Product currently unavailable

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Mercedes-Benz E-Class W211 Battery Positive Cable Wiring A2115407907

Part no. A2115407907

Mercedes-Benz E-Class W211 Battery Positive Cable Wiring A2115407907

Product currently unavailable

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BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9315096

Part no. 9315096

BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9315096

Product currently unavailable

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

Part no. 6942908

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

Product currently unavailable

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Audi A4 B8 AV10NEO Display Screen Radio Multimedia Navigation Sat 8T0919603F

Part no. 8T0919603F

Audi A4 B8 AV10NEO Display Screen Radio Multimedia Navigation Sat 8T0919603F

Product currently unavailable

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BMW 3 Series E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9131780

Part no. 9131780

BMW 3 Series E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9131780

Product currently unavailable

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Body Control Unit BMW E46 E83 Basic Module GM5 Star12 6963026

Part no. 6963026

Body Control Unit BMW E46 E83 Basic Module GM5 Star12 6963026

Product currently unavailable

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Mercedes C205 Fuse Box Relay Control Unit Module A0035421819

Part no. A0035421819

Mercedes C205 Fuse Box Relay Control Unit Module A0035421819

Product currently unavailable

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BMW E34 Z4 E85 Base B Terminal Point Engine Compartment 7514342

Part no. 7514342

BMW E34 Z4 E85 Base B Terminal Point Engine Compartment 7514342

Product currently unavailable

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BMW F07 F10 F11 Alternator Generator 220A Valeo N47N Diesel Engine 8507625

Part no. 8579420

BMW F07 F10 F11 Alternator Generator 220A Valeo N47N Diesel Engine 8507625

Product currently unavailable

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BMW F20 F21 Stoplamp Third Brake Light Rear Stop Lamp Red 7241551

Part no. 7241551

BMW F20 F21 Stoplamp Third Brake Light Rear Stop Lamp Red 7241551

Product currently unavailable

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BMW X5 Z4 E46 E53 E85 Drive Window Lifter Motor Left N/S Front 8362063

Part no. 8362063

BMW X5 Z4 E46 E53 E85 Drive Window Lifter Motor Left N/S Front 8362063

Product currently unavailable

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Alternator Generator Mercedes W177 W247 M260 Petrol Engine 200A 14V A0009068206

Part no. A0009068206

Alternator Generator Mercedes W177 W247 M260 Petrol Engine 200A 14V A0009068206

Product currently unavailable

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BMW 3 Series E90 LCI Footwell Light Control Module LCM LED Basis 9241005

Part no. 9241005

BMW 3 Series E90 LCI Footwell Light Control Module LCM LED Basis 9241005

Product currently unavailable

Key components of vehicle electrical systems

Original electrical parts for popular car brands

A car's electrical system is a complex system responsible for many key functions—from engine starting to lighting and on-board electronics. Modern cars are equipped with increasingly advanced electrical solutions that not only improve driving comfort but also enhance safety. At the Global Parts automotive store you will find a wide range of used car parts , such as alternators, starters, batteries, control modules and other automotive electrical systems that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini and many others.

How does a car's electrical system work?

A car's electrical system is a complex system that consists of several key components that work together to ensure the vehicle's reliable operation:

  • Battery accessories – Includes clamps, cables, holders and other components necessary for battery installation and maintenance.
  1. Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
  2. Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
  3. Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
  4. Starters – Key components of the starting system that enable the engine to be started.
  5. Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
  6. Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
  7. Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
  8. Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
  9. Relays – They control the flow of current in individual electrical circuits of the vehicle. A functioning electrical system is the basis for the reliability of your car, regardless of operating conditions.

Key technical parameters of electrical systems

Each of these components has specific technical parameters that determine its compatibility with the vehicle. For example, alternators installed in mid-range cars (e.g., Volkswagen Passat B6) typically have a capacity of 90 A to 140 A, while luxury vehicles (e.g., Mercedes S-Class) require alternators with a capacity exceeding 180 A. Starter motors vary in torque and operating voltage – the standard is 12 V, while 24 V starters are used in heavy-duty vehicles.

Why is it worth taking care of your car's electrical system?

Regular maintenance and replacement of electrical system components is key to reliability and road safety. Faulty components can lead to:

  • Problems starting the engine.
  • Failure of safety systems such as ABS or airbags.
  • Decreased efficiency of on-board equipment, e.g. lighting or air conditioning. At the Global Parts store we offer original used car parts , which have undergone detailed quality tests, ensuring their full functionality.

Symptoms of electrical system disruptions

In practice, electrical faults manifest themselves in a variety of ways. Drivers most often notice: dimming lights when parked, difficulty starting the engine, a voltage drop on the on-board computer, or air conditioning malfunctions. The table below presents typical correlations:

SymptomPossible causeItem to check
Difficulty starting the engineWorn out starter or batteryStarter motor, battery
Dimming the lightsInefficient alternatorAlternator, voltage regulator
Electric windows not workingDamaged relays or harnessRelays, wires

How to choose the right parts for your electrical system?

When choosing parts for the electrical system, such as alternators, starters or control modules, it is worth paying attention to:

  • Vehicle-specific fit – Every car make and model requires specific specifications. At Global Parts, you'll find parts that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini, and many more .
  • Technical condition – All used parts we offer are thoroughly checked to ensure their reliability.
  • Technical parameters – For example, alternators should have appropriate current output, adapted to the needs of your vehicle.

Compatibility and fit

The selection of electrical parts is based primarily on OEM part numbers, but matching them to specific parameters is equally important, including current, voltage, and the number of connector pins. For example, the 120A alternator used in the Audi A4 B7 differs significantly from the 150A version installed in the Audi A6 C6 . Therefore, using manufacturer catalogs or providing the VIN makes finding the right component much easier.

Why choose used electrical parts?

Purchase of used car parts This solution allows you to combine savings with quality. Why choose it?

  • Lower costs – Used alternators, starters and other parts are cheaper than new ones, but offer the same high quality.
  • Ecology – You support recycling and reduce waste by choosing used car parts .
  • Wide range – We offer electrical parts for the most popular car brands, so you can easily find what you need.

How to take care of your car's electrical system?

To ensure your electrical system operates reliably for years, it is worth remembering a few rules:

  • Regularly check the battery condition and charge level.
  • Take care of your cables and connectors – corrosion or damage can lead to voltage drops and failures.
  • Monitor the operation of the alternator and starter – early detection of problems will help avoid more serious breakdowns. If you have any problems, you will find the right car parts at Global Parts that will help restore your vehicle to full working order.

Step-by-step control procedures

  1. Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
  2. Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
  3. Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
  4. If in doubt, check the quiescent current consumption – it should not exceed 0.05–0.08 A.

FAQ - Frequently asked questions about electrical systems in cars

QuestionAnswer
What is a car electrical system?This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia.
What is an alternator for in a car?The alternator generates electrical current when the engine is running and charges the battery.
What is the difference between a starter and an alternator?The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving.
How to check if the battery is working?Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking.
What are the most common symptoms of car electrical failure?Problems starting the engine, flashing warning lights, power windows not working or dimming lights.
Do electrical parts from one model fit another?Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility.
How often should you check your electrical system?It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip.

Summary: Automotive electrical systems at Global Parts Automotive Store

Automotive electrical systems are the foundation of the reliability and comfort of every modern vehicle. By choosing the right parts, such as alternators, batteries, and control modules, you can ensure your car's full operational efficiency. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .

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