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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Mercedes W203 C209 Yaw Sensor ESP Rotation Rate Control Unit Module A0035429818

Part no. A0035429818

Mercedes W203 C209 Yaw Sensor ESP Rotation Rate Control Unit Module A0035429818

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BMW 3 Series E91 Max Brose Footwell Light Module Control Unit ECU 9286887

Part no. 9286887-1

BMW 3 Series E91 Max Brose Footwell Light Module Control Unit ECU 9286887

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Mercedes W211 Multimedia Wiring Loom Electrical Harness Cable A2115409910

Part no. A2115409910

Mercedes W211 Multimedia Wiring Loom Electrical Harness Cable A2115409910

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Mercedes-Benz CLK E C208 W210 Holder Bracket Engine Control Unit A2025458140

Part no. A2025458140

Mercedes-Benz CLK E C208 W210 Holder Bracket Engine Control Unit A2025458140

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Alternator Generator BMW X5 E53 E60 E61 E63 E65 N62 Petrol Engine 180A C543294A

Part no. 7540992-1

Alternator Generator BMW X5 E53 E60 E61 E63 E65 N62 Petrol Engine 180A C543294A

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BMW F20 M135i N55 326HP Engine Control Unit ECU DME 8626762 Automatic

Part no. 8626762

BMW F20 M135i N55 326HP Engine Control Unit ECU DME 8626762 Automatic

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Starter Motor Mercedes W204 W212 Sprinter W906 OM651 Diesel Engine A0061514501

Part no. A0061514501-1

Starter Motor Mercedes W204 W212 Sprinter W906 OM651 Diesel Engine A0061514501

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Heater Resistor Volkswagen VW Touran 1T Blower Motor Fan Resistor 3C0907521

Part no. 3C0907521

Heater Resistor Volkswagen VW Touran 1T Blower Motor Fan Resistor 3C0907521

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BMW E60 E63 E64 On-board Navigation Monitor Display Screen 6,5"

Part no. 9151976

BMW E60 E63 E64 On-board Navigation Monitor Display Screen 6,5"

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BMW X5 E70 Telematics Bluetooth Control Unit Module ECU Continental 9205930

Part no. 9205930-1

BMW X5 E70 Telematics Bluetooth Control Unit Module ECU Continental 9205930

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BMW E90 E91 N46 120i 320i 150HP Engine ECU KIT DME 7561834 CAS2 Key Manual

Part no. 7561834-1

BMW E90 E91 N46 120i 320i 150HP Engine ECU KIT DME 7561834 CAS2 Key Manual

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Volkswagen Golf CD1 Tailgate Trunk Lid Wiring Harness Rubber Cover 5G6971829B

Part no. 5G6971829B

Volkswagen Golf CD1 Tailgate Trunk Lid Wiring Harness Rubber Cover 5G6971829B

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BMW 3 Series E90 E91 E92 325i N52N 218HP ECU Kit DME CAS3   Key 7567362 Manual

Part no. 7567362-2

BMW 3 Series E90 E91 E92 325i N52N 218HP ECU Kit DME CAS3 Key 7567362 Manual

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Audi Q7 4L Door Module Front Driver's Side Control Unit ECU 4F0959793T

Part no. 4F0959793T

Audi Q7 4L Door Module Front Driver's Side Control Unit ECU 4F0959793T

Product currently unavailable

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Boardmonitor BMW X3 E83 Central Information Display Screen 6,5" 3420851

Part no. 3420851-1

Boardmonitor BMW X3 E83 Central Information Display Screen 6,5" 3420851

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Junction Box BMW X1 E84 ECU Body Control Module H2 PL2RR JBBFE IIIR 9267205

Part no. 9267205-2

Junction Box BMW X1 E84 ECU Body Control Module H2 PL2RR JBBFE IIIR 9267205

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Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089

Part no. A2118200089

Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089

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Mercedes W212 E350 CDI OM642.852 Engine Control Unit Module ECU A6421508900

Part no. A6421508900-1

Mercedes W212 E350 CDI OM642.852 Engine Control Unit Module ECU A6421508900

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Relay Mercedes W124 E280 Petrol Fuel Pump Cut Off Relay A0035452405

Part no. A0035452405

Relay Mercedes W124 E280 Petrol Fuel Pump Cut Off Relay A0035452405

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BMW F20 F21 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8630125 Manual

Part no. 8630125

BMW F20 F21 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8630125 Manual

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Fan Wiring Mercedes W639 W906 Heater Blower Unit Motor Cable Harness A0005405624

Part no. A0005405624

Fan Wiring Mercedes W639 W906 Heater Blower Unit Motor Cable Harness A0005405624

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Mercedes W166 Seat Fuse Relay Junction Box Block A1665402150

Part no. A1665402150

Mercedes W166 Seat Fuse Relay Junction Box Block A1665402150

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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2219067200

Part no. A2219067200

Mercedes W221 Fuse Box Control Unit SAM Module Relay A2219067200

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BMW E90 E91 E92 N52N 325i 218HP ECU Kit DME CAS3   Key 7574544 Automatic

Part no. 7574544-3

BMW E90 E91 E92 N52N 325i 218HP ECU Kit DME CAS3 Key 7574544 Automatic

Product currently unavailable

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BMW G20 320d B47D 190HP Engine Control Unit Module ECU Kit DDE 8475468 Key BDC

Part no. 8475468

BMW G20 320d B47D 190HP Engine Control Unit Module ECU Kit DDE 8475468 Key BDC

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Mini Cooper R61 Footwell Light Module High EKS SZT ECU FRM3R PL3 Lear 3457429

Part no. 3457429-1

Mini Cooper R61 Footwell Light Module High EKS SZT ECU FRM3R PL3 Lear 3457429

Product currently unavailable

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BMW Series  E81 E87 E90 E91 Power Distribution Fuse Box Front 9119445

Part no. 9119445

BMW Series E81 E87 E90 E91 Power Distribution Fuse Box Front 9119445

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BMW Mini Cooper One R57 High PL3 SPEG DC/DC H5 Fuse Distribution Box 3455534

Part no. 3455534

BMW Mini Cooper One R57 High PL3 SPEG DC/DC H5 Fuse Distribution Box 3455534

Product currently unavailable

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BMW 3 Series E92 Max Brose Footwell Light Module Control Unit ECU FRM3R 9224598

Part no. 9224598

BMW 3 Series E92 Max Brose Footwell Light Module Control Unit ECU FRM3R 9224598

Product currently unavailable

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BMW E63 E64 Rain Light Sensor Control Unit Module HUD 6980020

Part no. 6980020

BMW E63 E64 Rain Light Sensor Control Unit Module HUD 6980020

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BMW 3 E91 Touring Xenon Footwell Light Control Module LCM PL2 FRM II 9166708

Part no. 9166708-4

BMW 3 E91 Touring Xenon Footwell Light Control Module LCM PL2 FRM II 9166708

Product currently unavailable

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Mercedes W221 Digital Audio DAB Receiver Control Unit Module A2219000100

Part no. A2219000100

Mercedes W221 Digital Audio DAB Receiver Control Unit Module A2219000100

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Radio CD Player Mercedes W211 CLS C219 COMAND Navigation Head Unit A2118204497

Part no. A2118204497-1

Radio CD Player Mercedes W211 CLS C219 COMAND Navigation Head Unit A2118204497

Product currently unavailable

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Mercedes-Benz C208 W210 Front Right Door O/S Control Unit Module A2108207826

Part no. A2108207826

Mercedes-Benz C208 W210 Front Right Door O/S Control Unit Module A2108207826

Product currently unavailable

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Land Rover Range Rover L322 3.0d M57 306D1 Gearbox Control Unit Module TGB000091

Part no. TGB000091

Land Rover Range Rover L322 3.0d M57 306D1 Gearbox Control Unit Module TGB000091

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BMW G20 Radio Audio Amplifier Remote Receiver Control Module Unit 5A4CE55

Part no. 5A4CE55

BMW G20 Radio Audio Amplifier Remote Receiver Control Module Unit 5A4CE55

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Land Rover Range Rover Sport L320 3.0 Diesel Engine Starter Motor AH2211001AC

Part no. AH2211001AC

Land Rover Range Rover Sport L320 3.0 Diesel Engine Starter Motor AH2211001AC

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BMW E39 6-disc CD Changer without Magazine 6908948

Part no. 6908948

BMW E39 6-disc CD Changer without Magazine 6908948

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Mini Cooper R50 1.6 W10 116HP Engine ECU Kit DME + EWS + Key 7557395 Manual

Part no. 7557395-2

Mini Cooper R50 1.6 W10 116HP Engine ECU Kit DME + EWS + Key 7557395 Manual

Product currently unavailable

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BMW F20 F30 F36 Rear Electronic Module REM Fuse Box Control Unit V2 ECU 6809050

Part no. 6809050-1

BMW F20 F30 F36 Rear Electronic Module REM Fuse Box Control Unit V2 ECU 6809050

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COMAND Head Unit Mercedes CLA C117 W176 W246 Nav Sat Radio Player A2469000616

Part no. A2469000616

COMAND Head Unit Mercedes CLA C117 W176 W246 Nav Sat Radio Player A2469000616

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Vauxhall Opel Combo Positive Battery Cable Lead Wire Cabling 51919499

Part no. 51919499

Vauxhall Opel Combo Positive Battery Cable Lead Wire Cabling 51919499

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Roof Antenna Mini Cooper R57 Convertible Cabrio Aerial Base 9149080

Part no. 9149080-3

Roof Antenna Mini Cooper R57 Convertible Cabrio Aerial Base 9149080

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Mini Cooper Cabrio 1 R57 Aerial Roof Antenna Base Unit 3453891

Part no. 3453891-1

Mini Cooper Cabrio 1 R57 Aerial Roof Antenna Base Unit 3453891

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BMW F20 F21 LCI Wiring Loom Harness Rear Trunk Lid Right O/S 9251725

Part no. 9335306

BMW F20 F21 LCI Wiring Loom Harness Rear Trunk Lid Right O/S 9251725

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Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002

Part no. A2038204002

Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002

Product currently unavailable

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Vauxhall Combo D 1.3 Cdti A13FD  Engine Wiring Harness Loom 00552479600

Part no. 00552479600

Vauxhall Combo D 1.3 Cdti A13FD Engine Wiring Harness Loom 00552479600

Product currently unavailable

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Relay Mercedes SLK R171 5-Pin Electrical Plug White 12V A0035422019 R1808002

Part no. A0035422019

Relay Mercedes SLK R171 5-Pin Electrical Plug White 12V A0035422019 R1808002

Product currently unavailable

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Mercedes W213 S213 Multimedia USB SD Card Reader Port Socket Module A2058200526

Part no. A2058200526

Mercedes W213 S213 Multimedia USB SD Card Reader Port Socket Module A2058200526

Product currently unavailable

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BMW F32 GPS Navigation Display Screen Android Auto CarPlay 10,25"

Part no. 1025-03-1

BMW F32 GPS Navigation Display Screen Android Auto CarPlay 10,25"

Product currently unavailable

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Hyundai H-1 Safety Module Air Bag SRS Control Unit ECU Module 95910-4H600

Part no. 959104H600

Hyundai H-1 Safety Module Air Bag SRS Control Unit ECU Module 95910-4H600

Product currently unavailable

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BMW F20 F21 F30 Ultrasonic Parking Sensor PDC Front Havanna Metallic - A17

Part no. 9261592

BMW F20 F21 F30 Ultrasonic Parking Sensor PDC Front Havanna Metallic - A17

Product currently unavailable

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Navigation Head Unit BMW F20 F21 F30 F31 LCI F32 Radio CD Player High 2 9867503

Part no. 9867503-1

Navigation Head Unit BMW F20 F21 F30 F31 LCI F32 Radio CD Player High 2 9867503

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BMW E81 E87 E90 E91 E92 LCI Parking Control Module Unit PDC 6982395

Part no. 6982395

BMW E81 E87 E90 E91 E92 LCI Parking Control Module Unit PDC 6982395

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Volkswagen VW Passat B5 TDI Diesel Engine Starter Motor Actuator 068911024G

Part no. 068911024G

Volkswagen VW Passat B5 TDI Diesel Engine Starter Motor Actuator 068911024G

Product currently unavailable

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BMW E81 E87 E90 E91 E92 LCI Parking Control Module Unit PDC 6973114

Part no. 6973114

BMW E81 E87 E90 E91 E92 LCI Parking Control Module Unit PDC 6973114

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Audi A3 8P Rear Bumper PDC Parking Sensor Wiring Harness Loom 8P0971085A

Part no. 8P0971085A

Audi A3 8P Rear Bumper PDC Parking Sensor Wiring Harness Loom 8P0971085A

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Ford Transit Mk7 2.4 TDCi Diesel Engine Wiring Loom Harness Cables 6C1T12B637CG

Part no. 6C1T-12B637-CG

Ford Transit Mk7 2.4 TDCi Diesel Engine Wiring Loom Harness Cables 6C1T12B637CG

Product currently unavailable

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Audi Q2 GA Rear Centre Loudspeaker Subwoofer 81A035382

Part no. 81A035382

Audi Q2 GA Rear Centre Loudspeaker Subwoofer 81A035382

Product currently unavailable

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Vauxhall Opel Combo Positive Battery Cable Lead Wire Cabling 51871153

Part no. 51871153

Vauxhall Opel Combo Positive Battery Cable Lead Wire Cabling 51871153

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Fuse Box Cover Mercedes W177 W247 Engine Compartment Housing Holder A2475407600

Part no. A2475407600

Fuse Box Cover Mercedes W177 W247 Engine Compartment Housing Holder A2475407600

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BMW E90 E91 E92 Professional CCC Navigation System Controller 6949171

Part no. 6949171

BMW E90 E91 E92 Professional CCC Navigation System Controller 6949171

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Mini One R56 N12 1.4 95HP Engine ECU DME Kit CAS3 + Key 7600020 Manual

Part no. 7600020-13

Mini One R56 N12 1.4 95HP Engine ECU DME Kit CAS3 + Key 7600020 Manual

Product currently unavailable

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Audi Q7 4L A1 8X Negative Battery Cable Lead Monitoring Module 8K0915181D

Part no. 8K0915181D

Audi Q7 4L A1 8X Negative Battery Cable Lead Monitoring Module 8K0915181D

Product currently unavailable

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Mercedes W203 W204 Petrol Engine Starter Motor A0061510501

Part no. A0061510501

Mercedes W203 W204 Petrol Engine Starter Motor A0061510501

Product currently unavailable

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BMW X1 E84 Reversing Rear View Camera Control Unit Module 16129510

Part no. 9291385

BMW X1 E84 Reversing Rear View Camera Control Unit Module 16129510

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Mercedes W124 E280 Comfort Control Module Unit ECU A2028200926

Part no. A2028200926

Mercedes W124 E280 Comfort Control Module Unit ECU A2028200926

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Mercedes Sprinter W906 Fuse Prefuse Box Relay Electrical Unit A0045450201

Part no. A0045450201

Mercedes Sprinter W906 Fuse Prefuse Box Relay Electrical Unit A0045450201

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Steering Wheel Module BMW X3 G01 X5 G05 G20 G30 Heating Control Unit 7857778

Part no. 7857778

Steering Wheel Module BMW X3 G01 X5 G05 G20 G30 Heating Control Unit 7857778

Product currently unavailable

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Mini F55 F56 F57 Central Cover Information Instrument Radio 9367672

Part no. 9367672

Mini F55 F56 F57 Central Cover Information Instrument Radio 9367672

Product currently unavailable

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BMW E90 Light Control Footwell Module ECU MAX Brose FRM3R PL2 Lear 9390491

Part no. 9390491-2

BMW E90 Light Control Footwell Module ECU MAX Brose FRM3R PL2 Lear 9390491

Product currently unavailable

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BMW X5 E53 3.0i M54 Wiring Loom Harness Engine Automatic Gearbox 7531992

Part no. 7531992

BMW X5 E53 3.0i M54 Wiring Loom Harness Engine Automatic Gearbox 7531992

Product currently unavailable

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Mercedes A207 Convertible Roof Reinforcement Roll Bag Airbag Module A2079012700

Part no. A2079012700

Mercedes A207 Convertible Roof Reinforcement Roll Bag Airbag Module A2079012700

Product currently unavailable

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

Part no. 9292248-1

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

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Mercedes W205 SAM Module Front Body Comfort Control Unit ECU A2059006818

Part no. A2059006818

Mercedes W205 SAM Module Front Body Comfort Control Unit ECU A2059006818

Product currently unavailable

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Mercedes Vito W447 Head Unit Radio DAB Navigation GPS Nav Display A4479005517

Part no. a4479005517

Mercedes Vito W447 Head Unit Radio DAB Navigation GPS Nav Display A4479005517

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BMW Z4 Series E85 E86 Body Control Unit Module GM5 Star12 Delphi 6919275

Part no. 6919275

BMW Z4 Series E85 E86 Body Control Unit Module GM5 Star12 Delphi 6919275

Product currently unavailable

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BMW E60 E93 Mini Cooper R55 R56 R60 IBS Negative Battery Lead 9184204

Part no. 9184204

BMW E60 E93 Mini Cooper R55 R56 R60 IBS Negative Battery Lead 9184204

Product currently unavailable

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Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402

Part no. A6519009402

Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402

Product currently unavailable

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SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035451701

Part no. A2035451701

SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035451701

Product currently unavailable

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Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801

Part no. A1645401801

Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801

Product currently unavailable

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Battery Cable Volkswagen VW Golf Mk5 Positive Plus Pole Lead 1K0971228M

Part no. 1K0971228M

Battery Cable Volkswagen VW Golf Mk5 Positive Plus Pole Lead 1K0971228M

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BMW E87 ECU Body Control Module Unit H2 PL2 JBBFE 9119493

Part no. 9119493

BMW E87 ECU Body Control Module Unit H2 PL2 JBBFE 9119493

Product currently unavailable

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Mini Cooper One D W16 R55 R56 Engine Wiring Loom Harness 7808630 7795052

Part no. 7808630

Mini Cooper One D W16 R55 R56 Engine Wiring Loom Harness 7808630 7795052

Product currently unavailable

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Mercedes W447 114CDI SAM Comfort Control Unit Module Box ECU A4479009509

Part no. A4479009509

Mercedes W447 114CDI SAM Comfort Control Unit Module Box ECU A4479009509

Product currently unavailable

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BMW 1 3 Series E87 E90 E92 Front Seat Adjustment Switch Left N/S 6954129

Part no. rhd-6954129

BMW 1 3 Series E87 E90 E92 Front Seat Adjustment Switch Left N/S 6954129

Product currently unavailable

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BMW Mini R55 R56 R57 R58 R59 Rear PDC Ultrasonic Parking Sensor Reef Blue

Part no. 7305446

BMW Mini R55 R56 R57 R58 R59 Rear PDC Ultrasonic Parking Sensor Reef Blue

Product currently unavailable

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Audi RS4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064JJ

Part no. 8K0907064JJ

Audi RS4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064JJ

Product currently unavailable

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Mercedes ML W163 270 CDI Automatic Transmission Control Module A0305452632

Part no. A0305452632

Mercedes ML W163 270 CDI Automatic Transmission Control Module A0305452632

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MINI One D R50 W17 1ND Engine Wiring Loom Harness Module 7790365

Part no. 7790365

MINI One D R50 W17 1ND Engine Wiring Loom Harness Module 7790365

Product currently unavailable

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BMW X5 X6 3 4 Series E70 F15 F16 F30 F31 F32 Cigarette Lighter Socket 6977679

Part no. 6977679

BMW X5 X6 3 4 Series E70 F15 F16 F30 F31 F32 Cigarette Lighter Socket 6977679

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PDC Parking Sensor BMW X5 E70 F10 F11 F12 Ultrasonic Sensor Space Grey 9231283

Part no. 9233034-SCG

PDC Parking Sensor BMW X5 E70 F10 F11 F12 Ultrasonic Sensor Space Grey 9231283

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Engine Wiring BMW Z4 E85 E86 N52 Cable Loom Harness 7556886

Part no. 7556886

Engine Wiring BMW Z4 E85 E86 N52 Cable Loom Harness 7556886

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MINI R50 R52 One 1.6i 90HP Engine ECU Kit DME 7553735 + Key + EWS Manual

Part no. 7553735-5

MINI R50 R52 One 1.6i 90HP Engine ECU Kit DME 7553735 + Key + EWS Manual

Product currently unavailable

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Audi A6 C6 Door Module Front Driver's Side Control Unit ECU 4F0959793R

Part no. 4F0959793R

Audi A6 C6 Door Module Front Driver's Side Control Unit ECU 4F0959793R

Product currently unavailable

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BMW F20 F21 LCI F30 F31 F32 F13 Electric Coolant Fan Motor Relay 130A 6836504

Part no. 6836504

BMW F20 F21 LCI F30 F31 F32 F13 Electric Coolant Fan Motor Relay 130A 6836504

Product currently unavailable

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Starter BMW E81 E82 E87N E88 E90 E91 E92 N43 Starter Motor 7550975

Part no. 7550975-1

Starter BMW E81 E82 E87N E88 E90 E91 E92 N43 Starter Motor 7550975

Product currently unavailable

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Relay Mercedes W166 Voltage Dip Protection Start/Stop Relay Module A0009820123

Part no. A0009820123

Relay Mercedes W166 Voltage Dip Protection Start/Stop Relay Module A0009820123

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Mercedes W639 Vito OM646.980 116HP Engine Module ECU Kit A6461507172 Key Lock

Part no. A6461507172-1

Mercedes W639 Vito OM646.980 116HP Engine Module ECU Kit A6461507172 Key Lock

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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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