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 X5 E53 E60 E61 E63 E65 E70 Valvetronic VVT Control Unit Module 7532878

Part no. 7532878

BMW X5 E53 E60 E61 E63 E65 E70 Valvetronic VVT Control Unit Module 7532878

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BMW X5 F20 F21 F30 E70 LCI Trunk Lid Reversing Camera Rear 9240351

Part no. 9240351

BMW X5 F20 F21 F30 E70 LCI Trunk Lid Reversing Camera Rear 9240351

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BMW E87 LCI E90 118i 318i N43 Petrol ECU Engine Control Unit DME 7579142 Manual

Part no. 7579142

BMW E87 LCI E90 118i 318i N43 Petrol ECU Engine Control Unit DME 7579142 Manual

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Mini Cooper F55 F56 F57 LED Navigation Visual Boost 6,5" Display Screen

Part no. 9367673-1

Mini Cooper F55 F56 F57 LED Navigation Visual Boost 6,5" Display Screen

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Mercedes W203 Battery Starter Wiring Harness Cable A2034408932

Part no. rhd-A2034408932

Mercedes W203 Battery Starter Wiring Harness Cable A2034408932

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BMW 5 Series E60 LCI Light Control Unit Module LCM LM E6X LWR LEAR 9154943

Part no. 9154943

BMW 5 Series E60 LCI Light Control Unit Module LCM LM E6X LWR LEAR 9154943

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BMW E87 E90 E91 CAS 2 Control Unit ECU Key Reading Module 6981416

Part no. 6981416

BMW E87 E90 E91 CAS 2 Control Unit ECU Key Reading Module 6981416

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BMW 3 5 Series 4 E60 E90 Dashboard Dash Onboard Monitor Display Screen 8.8" CCC

Part no. 6989396

BMW 3 5 Series 4 E60 E90 Dashboard Dash Onboard Monitor Display Screen 8.8" CCC

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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549F

Part no. 8P0953549F

Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549F

Product currently unavailable

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BMW Mini Cooper R55 R56 LCI N16 Engine Wiring Loom Injection Ignition

Part no. 7601189

BMW Mini Cooper R55 R56 LCI N16 Engine Wiring Loom Injection Ignition

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BMW E60 Body Control Module ECU Control Unit KBM Basis 6978713

Part no. 6978713

BMW E60 Body Control Module ECU Control Unit KBM Basis 6978713

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Radio Professional BMW E81 E82 E87 E88 E90 E91 E92 E93 Autoradio CD 9231928

Part no. 9231928

Radio Professional BMW E81 E82 E87 E88 E90 E91 E92 E93 Autoradio CD 9231928

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BMW F10 ECU Body Control Module Junction Box V2 PL6 JBBFE III 9252331

Part no. 9252331

BMW F10 ECU Body Control Module Junction Box V2 PL6 JBBFE III 9252331

Product currently unavailable

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BMW 5 F11 Touring Body Control Module ECU Junction Box V7 PL6 JBBFE III 9286943

Part no. 9286943

BMW 5 F11 Touring Body Control Module ECU Junction Box V7 PL6 JBBFE III 9286943

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BMW X1 Series E84 ECU Footwell Light Module BASIS PL2 FRM3R Lear 9240527

Part no. 9240527

BMW X1 Series E84 ECU Footwell Light Module BASIS PL2 FRM3R Lear 9240527

Product currently unavailable

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BMW 1 Series E87 LCI ECU Light Module Footwell NSW PL2 FRM II Lear 9159807

Part no. 9159807

BMW 1 Series E87 LCI ECU Light Module Footwell NSW PL2 FRM II Lear 9159807

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BMW E87 LCI Light Module BASIS LCM Footwell Module PL2 FRM II 9241002

Part no. 9241002

BMW E87 LCI Light Module BASIS LCM Footwell Module PL2 FRM II 9241002

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Module Fuel Pump Mercedes W205 C253 Control Module Unit A0009002414

Part no. A0009002414

Module Fuel Pump Mercedes W205 C253 Control Module Unit A0009002414

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BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS

Part no. 7837411

BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS

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Mini R55 R56 LCI R60 Alternator Generator Bosch 150A Petrol 7604782

Part no. 7604782

Mini R55 R56 LCI R60 Alternator Generator Bosch 150A Petrol 7604782

Product currently unavailable

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Navigation Headunit BMW F20 F21 F30 F31 LCI Radio Sat Nav Unit 8705960

Part no. 8705960

Navigation Headunit BMW F20 F21 F30 F31 LCI Radio Sat Nav Unit 8705960

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BMW 1 Series E82 Footwell Light Module Control Unit ECU NSW PL2 FRM II 9175652

Part no. 9175652

BMW 1 Series E82 Footwell Light Module Control Unit ECU NSW PL2 FRM II 9175652

Product currently unavailable

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BMW E91 ECU Body Control Module H4 Electronic Box PL2 JBBFE 6983307

Part no. 6983307

BMW E91 ECU Body Control Module H4 Electronic Box PL2 JBBFE 6983307

Product currently unavailable

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BMW E81 E87 E90 E91 LCI E92 E93 CD Radio Business 9236531

Part no. 9236531

BMW E81 E87 E90 E91 LCI E92 E93 CD Radio Business 9236531

Product currently unavailable

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BMW E60 E61 LCI Front Bumper PDC Loom Cables Wiring Set 6928362

Part no. 6928362

BMW E60 E61 LCI Front Bumper PDC Loom Cables Wiring Set 6928362

Product currently unavailable

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Mini R55 R56 R57 R58 R60 Control Unit PDC Parking Sensor Module 3456016

Part no. 3456016

Mini R55 R56 R57 R58 R60 Control Unit PDC Parking Sensor Module 3456016

Product currently unavailable

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BMW E60 E81 E90 LCI Adapter Cable CIC System 9185171

Part no. 9185171

BMW E60 E81 E90 LCI Adapter Cable CIC System 9185171

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BMW 1 Series E82 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9229872

Part no. 9229872

BMW 1 Series E82 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9229872

Product currently unavailable

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BMW E61 E63 X5 E70 Telematics Bluetooth Control Unit Module 9138179

Part no. 9138179

BMW E61 E63 X5 E70 Telematics Bluetooth Control Unit Module 9138179

Product currently unavailable

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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529

Part no. 7542529

BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529

Product currently unavailable

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BMW E90 E91 E92 325i 218HP N52N ECU Control Unit DME MSV80 7567362 Automatic

Part no. 7567362-1

BMW E90 E91 E92 325i 218HP N52N ECU Control Unit DME MSV80 7567362 Automatic

Product currently unavailable

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BMW 1 3 Series F20 F21 F30 F31 LCI Navigation Sat Nav Head Unit High 6819420

Part no. 6991582

BMW 1 3 Series F20 F21 F30 F31 LCI Navigation Sat Nav Head Unit High 6819420

Product currently unavailable

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BMW 3 4 Series F30 F31 F32 Control Unit Top Rear Side View Camera 9302258

Part no. 9302258

BMW 3 4 Series F30 F31 F32 Control Unit Top Rear Side View Camera 9302258

Product currently unavailable

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BMW 3 Series E90 E91 E92 330d M57N2 Diesel Manual Engine Wiring Loom Harness

Part no. rhd-7802567

BMW 3 Series E90 E91 E92 330d M57N2 Diesel Manual Engine Wiring Loom Harness

Product currently unavailable

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Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

Part no. A2049060205

Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

Product currently unavailable

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On Board Monitor BMW E60 E63 E90 Dashboard Display Screen 8.8" 9114362

Part no. 9114362

On Board Monitor BMW E60 E63 E90 Dashboard Display Screen 8.8" 9114362

Product currently unavailable

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BMW Mini One R55 R56 N12 1.4 95HP ECU Kit DME   CAS 3   Key 7600020

Part no. 7600020

BMW Mini One R55 R56 N12 1.4 95HP ECU Kit DME CAS 3 Key 7600020

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PDC Parking Sensor BMW F01 F10 F11 Front Rear Bumper Sophisto Grey 9270050

Part no. 9270050

PDC Parking Sensor BMW F01 F10 F11 Front Rear Bumper Sophisto Grey 9270050

Product currently unavailable

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BMW 1 3 Series E87 LCI E90 Petrol N43 DME Engine Control Unit 7583225 Manual

Part no. 7583225

BMW 1 3 Series E87 LCI E90 Petrol N43 DME Engine Control Unit 7583225 Manual

Product currently unavailable

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BMW F20 F21 F22 F30 F31 Head Unit Basic Media Navigation Headunit 6822077

Part no. 6822077

BMW F20 F21 F22 F30 F31 Head Unit Basic Media Navigation Headunit 6822077

Product currently unavailable

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BMW E90 E91 E92 Professional CCC DVD Navigation System Controller 9148016

Part no. 9148016

BMW E90 E91 E92 Professional CCC DVD Navigation System Controller 9148016

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Mercedes W207 W212 Parktronic Parking Control Unit Module A0009003706

Part no. A0009003706

Mercedes W207 W212 Parktronic Parking Control Unit Module A0009003706

Product currently unavailable

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BMW E90 E91 E92 Bracket CD Changer Holder Amplifier Mounting 6945072

Part no. 6945072

BMW E90 E91 E92 Bracket CD Changer Holder Amplifier Mounting 6945072

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BMW E65 E66 CD Audio System Controller Player 9130764

Part no. 9130764

BMW E65 E66 CD Audio System Controller Player 9130764

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BMW F30 F31 Xenon Adaptive Headlight Control Unit Module Lear TMS 7316186

Part no. 7316186

BMW F30 F31 Xenon Adaptive Headlight Control Unit Module Lear TMS 7316186

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BMW X3 X5 E53 E83 Four Wheel Drive Transfer Box Control Unit Module 7599883

Part no. 7599883

BMW X3 X5 E53 E83 Four Wheel Drive Transfer Box Control Unit Module 7599883

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BMW E88 ECU Footwell Light Module Control Unit PL2 FRM II Lear 9197161

Part no. 9197161-1

BMW E88 ECU Footwell Light Module Control Unit PL2 FRM II Lear 9197161

Product currently unavailable

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Display Screen Mercedes W177 W247 Instrument Cluster Speedo Meter A2479007204

Part no. rhd-A2479007204

Display Screen Mercedes W177 W247 Instrument Cluster Speedo Meter A2479007204

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BMW X5 E53 Basic Body Control Unit Module GM3 6960249

Part no. 6960249

BMW X5 E53 Basic Body Control Unit Module GM3 6960249

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BMW F20 F21 Wire Cable Plug Wiring Diagnostic Socket OBD  9253563

Part no. 9253563

BMW F20 F21 Wire Cable Plug Wiring Diagnostic Socket OBD 9253563

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BMW E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 9128184

Part no. 9128184

BMW E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 9128184

Product currently unavailable

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BMW 1 Series E81 E87 LCI Positive Battery Lead Cable Wiring

Part no. 9125031

BMW 1 Series E81 E87 LCI Positive Battery Lead Cable Wiring

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Steering Column Switch BMW E87 E81 E91 LCI Cluster Wiper Stalk 9123043

Part no. 9123043-1

Steering Column Switch BMW E87 E81 E91 LCI Cluster Wiper Stalk 9123043

Product currently unavailable

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BMW F30 F31 F32 Control Unit Module Active Sound Design 6820696

Part no. 6820696

BMW F30 F31 F32 Control Unit Module Active Sound Design 6820696

Product currently unavailable

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BMW F10 F20 F30 Control Unit For Fuel Pump Module 7411595

Part no. 7411595

BMW F10 F20 F30 Control Unit For Fuel Pump Module 7411595

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BMW F20 F21 Xenon Headlight Control Unit Module Lear TMS 7316145

Part no. 7316145

BMW F20 F21 Xenon Headlight Control Unit Module Lear TMS 7316145

Product currently unavailable

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BMW X1 E84 E87 E90 E91 E92 LCI Radio CD Professional DAB 9302159

Part no. 9302159

BMW X1 E84 E87 E90 E91 E92 LCI Radio CD Professional DAB 9302159

Product currently unavailable

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BMW E93 E64 Convertible Rollover Control Controller Module 9179400

Part no. 9179400

BMW E93 E64 Convertible Rollover Control Controller Module 9179400

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Mercedes W169 W245 Rain Light Sensor Control Unit Module A1718203726

Part no. A1718204426

Mercedes W169 W245 Rain Light Sensor Control Unit Module A1718203726

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BMW X3 E83 2.5i 3.0i M54 Wiring Harness Cable Engine Ignition Module 3412247

Part no. 3425833

BMW X3 E83 2.5i 3.0i M54 Wiring Harness Cable Engine Ignition Module 3412247

Product currently unavailable

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Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009829608

Part no. A0009829608

Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009829608

Product currently unavailable

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Mini Cooper R50 One R53 S Drive Window Lifter Motor Front Right O/S 6954276

Part no. 6954276

Mini Cooper R50 One R53 S Drive Window Lifter Motor Front Right O/S 6954276

Product currently unavailable

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BMW X3 Series E83 E83N LCI Airbag Sensor Module B-pillar Crash Sensor 3414264

Part no. 3414264

BMW X3 Series E83 E83N LCI Airbag Sensor Module B-pillar Crash Sensor 3414264

Product currently unavailable

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IBS Cable BMW E60 Negative Battery Lead Wiring Harness Control Unit 9115488

Part no. 9115488

IBS Cable BMW E60 Negative Battery Lead Wiring Harness Control Unit 9115488

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Mercedes W176 Air Module Belt Locking System Control Unit Module ECU

Part no. A1179001802

Mercedes W176 Air Module Belt Locking System Control Unit Module ECU

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BMW E93 ECU Body Control Module H3 Junction Box 61359176884 9176884

Part no. 9176884

BMW E93 ECU Body Control Module H3 Junction Box 61359176884 9176884

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Mini R60 Countryman Footwell Light Module High EKS ECU PL3 FRM3R Lear 3456588

Part no. 3456588-2

Mini R60 Countryman Footwell Light Module High EKS ECU PL3 FRM3R Lear 3456588

Product currently unavailable

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BMW 3 Series E90 E91 LCI Mini R55 R56 Tyre Pressure RDC Control Unit Module

Part no. 6868194

BMW 3 Series E90 E91 LCI Mini R55 R56 Tyre Pressure RDC Control Unit Module

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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BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9292948

Part no. 9292948

BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9292948

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Mercedes W203 Door Control Module Front Right O/S A2038201485

Part no. A2038201485

Mercedes W203 Door Control Module Front Right O/S A2038201485

Product currently unavailable

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Yaw Module Mercedes W204 Rotation Rate Acceleration Sensor A0055421918

Part no. A0055421918

Yaw Module Mercedes W204 Rotation Rate Acceleration Sensor A0055421918

Product currently unavailable

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Bluetooth Module BMW E81 E87 E90 MULF Hands free Electronics Charging 6975173

Part no. 6975173

Bluetooth Module BMW E81 E87 E90 MULF Hands free Electronics Charging 6975173

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Radar Sensor Mercedes W176 W207 W246 Front Control Unit Module A0009052804

Part no. A0009052804

Radar Sensor Mercedes W176 W207 W246 Front Control Unit Module A0009052804

Product currently unavailable

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BMW 5 7 Series E61 E61N LCI E65 Air Suspension Supply Control Unit 6784314

Part no. 6784314

BMW 5 7 Series E61 E61N LCI E65 Air Suspension Supply Control Unit 6784314

Product currently unavailable

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BMW Z4 Series E85 E86 Aerial Antenna Amplifier Module Rod

Part no. 6913896-1

BMW Z4 Series E85 E86 Aerial Antenna Amplifier Module Rod

Product currently unavailable

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BMW F20 F21 F30 F31 Fuel Pump Delivery Control Unit Module 7450992

Part no. 7450992

BMW F20 F21 F30 F31 Fuel Pump Delivery Control Unit Module 7450992

Product currently unavailable

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BMW 1 3 Series E81 E87 E87N E90 E91 Radio BMW Business CD 65129141682 9141682

Part no. 9141682

BMW 1 3 Series E81 E87 E87N E90 E91 Radio BMW Business CD 65129141682 9141682

Product currently unavailable

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BMW E60 E81 E87 E90 E91 X3 E83 Relay Changer Make Contact Salmon Red Set 1742690

Part no. 1742690-1

BMW E60 E81 E87 E90 E91 X3 E83 Relay Changer Make Contact Salmon Red Set 1742690

Product currently unavailable

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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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BMW 5 Series E60 LCI IBS Negative Battery Lead Cable Wiring Harness 9132249

Part no. 9132249

BMW 5 Series E60 LCI IBS Negative Battery Lead Cable Wiring Harness 9132249

Product currently unavailable

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2X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469

Part no. 6901469-1

2X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469

Product currently unavailable

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BMW E60 E81 E87 E90 E91 E92 E93 CAS3 Control Unit Key Reading Module 9262361

Part no. 9262361

BMW E60 E81 E87 E90 E91 E92 E93 CAS3 Control Unit Key Reading Module 9262361

Product currently unavailable

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Display Screen BMW F20 F21 LCI Navigation Infotainment System 8,8" 9387548

Part no. rhd-9387548

Display Screen BMW F20 F21 LCI Navigation Infotainment System 8,8" 9387548

Product currently unavailable

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Mini Cooper R60 Countryman High PL3 SPEG H6 Fuse Distribution Box 9809381

Part no. 9809381

Mini Cooper R60 Countryman High PL3 SPEG H6 Fuse Distribution Box 9809381

Product currently unavailable

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Mini Cooper S R56 R57 N14 1.6 ECU Control Unit Kit DME 7610011 CAS3 Key Manual

Part no. 7610011-2

Mini Cooper S R56 R57 N14 1.6 ECU Control Unit Kit DME 7610011 CAS3 Key Manual

Product currently unavailable

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Mercedes Vito W639 Door Front Right O/S Control Unit Module ECU A6398201226

Part no. A6398201226

Mercedes Vito W639 Door Front Right O/S Control Unit Module ECU A6398201226

Product currently unavailable

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BMW E92 Xenon Footwell Light Module Control Unit ECU PL2 FRM II 9159808

Part no. 9159808

BMW E92 Xenon Footwell Light Module Control Unit ECU PL2 FRM II 9159808

Product currently unavailable

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Kompressor Mercedes W203 W211 M271 Petrol Engine Starter Motor A0051513901

Part no. A0051513901

Kompressor Mercedes W203 W211 M271 Petrol Engine Starter Motor A0051513901

Product currently unavailable

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BMW X5 X6 Series E70 E71 Transfer Box Control Unit Module ECU 7605031

Part no. 7605031

BMW X5 X6 Series E70 E71 Transfer Box Control Unit Module ECU 7605031

Product currently unavailable

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BMW 1 Series E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224589

Part no. 9224589

BMW 1 Series E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224589

Product currently unavailable

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BMW E60 E61 E63 E64 PDC Parking Control Module Unit ECU 9116264

Part no. 9116264

BMW E60 E61 E63 E64 PDC Parking Control Module Unit ECU 9116264

Product currently unavailable

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PDC Parking Sensor BMW F01 F10 F11 Front Rear Bumper Imperial Blau Blue A89

Part no. 9233036

PDC Parking Sensor BMW F01 F10 F11 Front Rear Bumper Imperial Blau Blue A89

Product currently unavailable

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BMW E60 E63 Body Control Module ECU Control Unit 9136039

Part no. 9136039

BMW E60 E63 Body Control Module ECU Control Unit 9136039

Product currently unavailable

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Mini R50 R53 Fuse Relay Electrical Box Housing With Cover 1480790

Part no. 1480790-1

Mini R50 R53 Fuse Relay Electrical Box Housing With Cover 1480790

Product currently unavailable

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BMW 5 Series E60 E60N E61 LCI Battery Cable Lead Positive Underfloor 6927704

Part no. 6927704-1

BMW 5 Series E60 E60N E61 LCI Battery Cable Lead Positive Underfloor 6927704

Product currently unavailable

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BMW E60 E61 CCC CD Professional Navigation System Controller 6949171

Part no. 9123087

BMW E60 E61 CCC CD Professional Navigation System Controller 6949171

Product currently unavailable

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Mini R50 R52 Battery Cable Negative Wire 7522234 7519551

Part no. 7522234

Mini R50 R52 Battery Cable Negative Wire 7522234 7519551

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

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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