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 F20 F21 F22 F87 Windscreen Camera Front Window KaFAS Camera 9278358

Part no. 9278358

BMW F20 F21 F22 F87 Windscreen Camera Front Window KaFAS Camera 9278358

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Audi RS6 C7 Acceleration Yaw Rate Sensor Module Control Unit ECU 4G0907637L

Part no. 4G0907637L

Audi RS6 C7 Acceleration Yaw Rate Sensor Module Control Unit ECU 4G0907637L

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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Engine Wiring Renault Trafic II Loom Harness Module 240113809R

Part no. 240113809R

Engine Wiring Renault Trafic II Loom Harness Module 240113809R

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BMW F11 Footwell Light Module ECU Control Unit FRM III TEMIC 9273629

-15%

Part no. 9273629

BMW F11 Footwell Light Module ECU Control Unit FRM III TEMIC 9273629

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Parking Sensor Mercedes W169 W245 PDC Distance Control Unit Module A1699007400

Part no. A1699007400

Parking Sensor Mercedes W169 W245 PDC Distance Control Unit Module A1699007400

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BMW E81 E87 LCI N43 116i 2.0 122HP ECU Control Unit Kit DME 7640015 CAS3 + Keys

Part no. 7640015-1

BMW E81 E87 LCI N43 116i 2.0 122HP ECU Control Unit Kit DME 7640015 CAS3 + Keys

Product currently unavailable

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BMW F20 F21 F30 LCI M140i 340i Alternator Generator 180A BOSCH 8614276

-15%

Part no. 8614276

BMW F20 F21 F30 LCI M140i 340i Alternator Generator 180A BOSCH 8614276

Product currently unavailable

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BMW E65 Passenger Seat Air Module Sensor Control Unit SRS 6960218

Part no. 6960218

BMW E65 Passenger Seat Air Module Sensor Control Unit SRS 6960218

Product currently unavailable

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BMW E87 E90 E91 E92 E93 Power Distribution Fuse Box Front 6906621

-5%

Part no. 6906621

BMW E87 E90 E91 E92 E93 Power Distribution Fuse Box Front 6906621

Product currently unavailable

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

-40%

Part no. 9393675

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

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BMW E60 M5 E63 E64 M6 S85 Starter Motor 7835126

Part no. 7835126

BMW E60 M5 E63 E64 M6 S85 Starter Motor 7835126

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BMW E81 E87 E90 MULF Hands-free Electronics Charging Module 9200821

Part no. 9200821

BMW E81 E87 E90 MULF Hands-free Electronics Charging Module 9200821

Product currently unavailable

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BMW 5 Series F10 Light Control Footwell Module ECU Unit FRM3 9250454

Part no. 9250454

BMW 5 Series F10 Light Control Footwell Module ECU Unit FRM3 9250454

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Audi A3 8P Battery Box Tray Housing Holder Bracket Cover 1K0915333B

Part no. 1K0915333B

Audi A3 8P Battery Box Tray Housing Holder Bracket Cover 1K0915333B

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BMW E90 E91 LCI N47N 320ed 320d ed 163HP ECU KIT DDE 8510829 CAS3 + Key Manual

-40%

Part no. 8510829-4

BMW E90 E91 LCI N47N 320ed 320d ed 163HP ECU KIT DDE 8510829 CAS3 + Key Manual

Product currently unavailable

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BMW E87 LCI E90 118i 318i Petrol ECU Engine Control Kit N43 DME 7579142 CAS3 Key

Part no. 7579142-7

BMW E87 LCI E90 118i 318i Petrol ECU Engine Control Kit N43 DME 7579142 CAS3 Key

Product currently unavailable

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Active Cruise Control BMW E90 E91 E92 LCI Longitudinal Dynamic Module 6774206

Part no. 6774206

Active Cruise Control BMW E90 E91 E92 LCI Longitudinal Dynamic Module 6774206

Product currently unavailable

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BMW 1 3 Series E81 E87 E90 E91 E92 Radio Professional CD Audio Player 9199439

Part no. 9199439

BMW 1 3 Series E81 E87 E90 E91 E92 Radio Professional CD Audio Player 9199439

Product currently unavailable

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Engine Wiring Mercedes W169 W245 Loom Cable Harness Injector Module A6401503733

Part no. A6401503733

Engine Wiring Mercedes W169 W245 Loom Cable Harness Injector Module A6401503733

Product currently unavailable

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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 E81 E87 LCI N43 116i 1.6 122HP ECU Control Unit Kit DME 7595179 CAS3 + Key

Part no. 7595179-15

BMW E81 E87 LCI N43 116i 1.6 122HP ECU Control Unit Kit DME 7595179 CAS3 + Key

Product currently unavailable

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Mercedes W204 SAM Fuse Prefuse Box Relay Control Unit A2045403850

Part no. A2045403850

Mercedes W204 SAM Fuse Prefuse Box Relay Control Unit A2045403850

Product currently unavailable

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Mini R56 Footwell Light Module Control Unit ECU PL3 FRM II High EKS 3455701

Part no. 3455701

Mini R56 Footwell Light Module Control Unit ECU PL3 FRM II High EKS 3455701

Product currently unavailable

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Mercedes ML W163 Window Windscreen Rain Light Sensor Module A1638200726

Part no. A1638200726

Mercedes ML W163 Window Windscreen Rain Light Sensor Module A1638200726

Product currently unavailable

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Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket A2055400840

Part no. A2055400840

Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket A2055400840

Product currently unavailable

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Mercedes ML W164 Passenger Side Control Unit Module Fuse Box SAM A1649004101

Part no. A1649004101

Mercedes ML W164 Passenger Side Control Unit Module Fuse Box SAM A1649004101

Product currently unavailable

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Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508

Part no. A0009829508

Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508

Product currently unavailable

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Mini Cooper R50 W10 116HP Engine Control Unit ECU Kit DME 7557395 Key EWS

Part no. 7557395-11

Mini Cooper R50 W10 116HP Engine Control Unit ECU Kit DME 7557395 Key EWS

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Mini Cabrio R57 Roof Operating Unit Light Switch Panel 3450545

Part no. 3450545

Mini Cabrio R57 Roof Operating Unit Light Switch Panel 3450545

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Mini Cooper One R56 Footwell Light Module High EKS ECU PL3 FRM II 3453743

-15%

Part no. 3453743

Mini Cooper One R56 Footwell Light Module High EKS ECU PL3 FRM II 3453743

Product currently unavailable

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Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Unit Head 3456760

Part no. 3456760

Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Unit Head 3456760

Product currently unavailable

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BMW 1 3 5 Series E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147184

Part no. 9147184

BMW 1 3 5 Series E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147184

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Volkswagen Caddy 1.6 TDI CAYD C20 102HP Engine Unit ECU Manual 03L906023PC

-40%

Part no. 03L906023PC

Volkswagen Caddy 1.6 TDI CAYD C20 102HP Engine Unit ECU Manual 03L906023PC

Product currently unavailable

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BMW 5 6 Series E60 E61 E63 6-disc Compact CD Changer Without Magazine 6986081

Part no. 6986081-1

BMW 5 6 Series E60 E61 E63 6-disc Compact CD Changer Without Magazine 6986081

Product currently unavailable

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Air Module Mercedes W211 W219 Control Unit ECU A2118701185

-5%

Part no. A2118701185

Air Module Mercedes W211 W219 Control Unit ECU A2118701185

Product currently unavailable

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BMW F07 F10 Alternator Generator 221A Valeo N57N N57Z Diesel Engine 8570672

Part no. 8570673

BMW F07 F10 Alternator Generator 221A Valeo N57N N57Z Diesel Engine 8570672

Product currently unavailable

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Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399002900

Part no. A6399002900

Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399002900

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BMW F30 LCI B48X 330e Hybrid Electric High Voltage Battery 8677631

Part no. 8677631

BMW F30 LCI B48X 330e Hybrid Electric High Voltage Battery 8677631

Product currently unavailable

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BMW X5 Series E53 4.4i Petrol M62 B44 448S2 Engine Wiring Loom Harness 1438902

Part no. 1438902

BMW X5 Series E53 4.4i Petrol M62 B44 448S2 Engine Wiring Loom Harness 1438902

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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

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Nissan Qashqai J10 Renault Koleos 2.0 dCi Engine Alternator 23100JD71A

Part no. 23100JD71A

Nissan Qashqai J10 Renault Koleos 2.0 dCi Engine Alternator 23100JD71A

Product currently unavailable

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Airbag Module BMW F45 X1 F48 Mini F54 F55 F56 Air Bag Control Unit ECU 9367835

Part no. 9484301

Airbag Module BMW F45 X1 F48 Mini F54 F55 F56 Air Bag Control Unit ECU 9367835

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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Bracket Mount 8200527320

Part no. 8200527320-1

Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Bracket Mount 8200527320

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

Part no. 7542529-1

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

Product currently unavailable

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BMW 5 X3 Series E39 E60 E61 E83 PDC Ultrasonic Parking Sensor Black 4687921

Part no. 2687921

BMW 5 X3 Series E39 E60 E61 E83 PDC Ultrasonic Parking Sensor Black 4687921

Product currently unavailable

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Audi Q7 4L Radio Head Unit Navi CD DVD Player Changer 4L0910110A

Part no. 4L0910110A

Audi Q7 4L Radio Head Unit Navi CD DVD Player Changer 4L0910110A

Product currently unavailable

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Mini Cooper One R52 Body Control Unit Basic Module BC1RD 6976989

Part no. 6976989

Mini Cooper One R52 Body Control Unit Basic Module BC1RD 6976989

Product currently unavailable

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Ford Transit Custom 2.0 EcoBlue 130HP FWD Engine ECU GK21-12A650-CA Manual

Part no. GK2112A650CA-2

Ford Transit Custom 2.0 EcoBlue 130HP FWD Engine ECU GK21-12A650-CA Manual

Product currently unavailable

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Mini R52 R53 Petrol W11 Compact Alternator Generator 105A 7515030

Part no. 7515030

Mini R52 R53 Petrol W11 Compact Alternator Generator 105A 7515030

Product currently unavailable

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Mercedes ML W164 W251 Air Module SRS Control Unit ECU A1648207426

Part no. A1648207426

Mercedes ML W164 W251 Air Module SRS Control Unit ECU A1648207426

Product currently unavailable

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Audi A4 B8 A5 8T 2.0 TDI CGLD Engine Control Unit ECU 03L906018JH Manual

Part no. 03L906018KJ

Audi A4 B8 A5 8T 2.0 TDI CGLD Engine Control Unit ECU 03L906018JH Manual

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Mini Cooper One R56 Footwell Light Module ECU HIGH Lear PL3 FRM II 3452092

Part no. 3452092

Mini Cooper One R56 Footwell Light Module ECU HIGH Lear PL3 FRM II 3452092

Product currently unavailable

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BMW E90 E91 LCI N47N 320ed 320d ed 163HP ECU KIT DDE 8510829 CAS3 + Keys Manual

Part no. 8510829-1

BMW E90 E91 LCI N47N 320ed 320d ed 163HP ECU KIT DDE 8510829 CAS3 + Keys Manual

Product currently unavailable

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Peugeot 508 5008 2.0 HDI Galaxy MK3 2.0 TDCI Alternator Bracket Mount 9688628680

Part no. 9688628680

Peugeot 508 5008 2.0 HDI Galaxy MK3 2.0 TDCI Alternator Bracket Mount 9688628680

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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9293309

Part no. 9293309

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9293309

Product currently unavailable

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Mercedes Sprinter W907 Parking Control Unit Module Sensor Parktronic A0009002720

Part no. A0009002720

Mercedes Sprinter W907 Parking Control Unit Module Sensor Parktronic A0009002720

Product currently unavailable

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BMW E93 ECU Body Control Module H1 PL2 JBBFE 61359153966 9153966

Part no. 9153966

BMW E93 ECU Body Control Module H1 PL2 JBBFE 61359153966 9153966

Product currently unavailable

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Mercedes GLC C253 Multimedia USB SD Card Reader Port Socket A2538206100

Part no. A2538206100

Mercedes GLC C253 Multimedia USB SD Card Reader Port Socket A2538206100

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Starter Mercedes W204 W212 W906 Diesel OM651 Starter Motor Bosch A6519062800

Part no. A6519062800-1

Starter Mercedes W204 W212 W906 Diesel OM651 Starter Motor Bosch A6519062800

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BMW F20 F21 F30 F31 LCI G30 G31 G11 Navigation Head Unit Sat Nav High 2 8708259

Part no. 8708259

BMW F20 F21 F30 F31 LCI G30 G31 G11 Navigation Head Unit Sat Nav High 2 8708259

Product currently unavailable

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BMW X3 E83 Z4 E85 DVD Player GPS Navi Head System Computer Unit 9154052

Part no. 9154052

BMW X3 E83 Z4 E85 DVD Player GPS Navi Head System Computer Unit 9154052

Product currently unavailable

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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Generator 8200404459

Part no. 8200404459

Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Generator 8200404459

Product currently unavailable

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Land Rover Range Rover L322 3.0d M57 Engine Alternator Generator YLE000051

Part no. YLE000051

Land Rover Range Rover L322 3.0d M57 Engine Alternator Generator YLE000051

Product currently unavailable

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Audi A1 8X 1.4 TSI Engine Wiring Loom Harnes 03C971612BR

Part no. 03C971612BR

Audi A1 8X 1.4 TSI Engine Wiring Loom Harnes 03C971612BR

Product currently unavailable

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Peugeot Partner 1.6 HDI 9H03 Engine Control Unit ECU EDC 9664843780 Manual

Part no. 9664843780

Peugeot Partner 1.6 HDI 9H03 Engine Control Unit ECU EDC 9664843780 Manual

Product currently unavailable

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BMW E81 E82 E87 Xenon Headlight Light Ballast Control Unit 89034934

-5%

Part no. 7180050

BMW E81 E82 E87 Xenon Headlight Light Ballast Control Unit 89034934

Product currently unavailable

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Wiring BMW X3 F25 Automatic Gearbox Module Engine Wiring Harness 7811176

Part no. 7811176

Wiring BMW X3 F25 Automatic Gearbox Module Engine Wiring Harness 7811176

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Mercedes W204 Display Screen Information Navigation Dashboard A2049007408

Part no. A2049007408

Mercedes W204 Display Screen Information Navigation Dashboard A2049007408

Product currently unavailable

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Audi A6 C7 2.0 TDI CGLC BCM Body Control Module Unit ECU 4H0907063BN

Part no. 4H0907063BN

Audi A6 C7 2.0 TDI CGLC BCM Body Control Module Unit ECU 4H0907063BN

Product currently unavailable

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Mini Cooper R56 LCI High SPEG PL3 H4 Fuse Distribution Box 3455439

Part no. 3455439

Mini Cooper R56 LCI High SPEG PL3 H4 Fuse Distribution Box 3455439

Product currently unavailable

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Fuse Box Mercedes W211 CLS C219 Front SAM Control Unit Module A2115457701

Part no. A2115457701

Fuse Box Mercedes W211 CLS C219 Front SAM Control Unit Module A2115457701

Product currently unavailable

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BMW E81 E87 E90 MULF Hands Free Electronics Charging Module 9116725

Part no. 9116725

BMW E81 E87 E90 MULF Hands Free Electronics Charging Module 9116725

Product currently unavailable

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Mercedes W169 W245 Door Control Module Front Left N/S A1699000500

Part no. A1699000500

Mercedes W169 W245 Door Control Module Front Left N/S A1699000500

Product currently unavailable

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Mini Cooper R55 R56 R57 CCC CD Navigation Sat Nav Head Unit 9170730

Part no. 9170730-1

Mini Cooper R55 R56 R57 CCC CD Navigation Sat Nav Head Unit 9170730

Product currently unavailable

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Mercedes Sprinter W906 OM646 Diesel Engine Wiring Harness Loom Cable A6461504233

Part no. A6461504233

Mercedes Sprinter W906 OM646 Diesel Engine Wiring Harness Loom Cable A6461504233

Product currently unavailable

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BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9144776

Part no. 9144776

BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9144776

Product currently unavailable

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Audi A6 C7 Fuel Pump Control Unit Module 4G0906093F

Part no. 4G0906093F

Audi A6 C7 Fuel Pump Control Unit Module 4G0906093F

Product currently unavailable

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Mercedes W211 W220 ESP Yaw Rotation Rate Sensor A0025426618

Part no. A0025426618

Mercedes W211 W220 ESP Yaw Rotation Rate Sensor A0025426618

Product currently unavailable

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Mercedes W169 W245 Sam Control Module Fuse Box Unit A1699010100

Part no. A1699010100

Mercedes W169 W245 Sam Control Module Fuse Box Unit A1699010100

Product currently unavailable

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BMW F30 335i F32 F33 435i N55 306HP Engine Control Unit ECU 8639582 Automatic

Part no. 8639582-1

BMW F30 335i F32 F33 435i N55 306HP Engine Control Unit ECU 8639582 Automatic

Product currently unavailable

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Audi A3 8P Body Control Module Unit 8P0907063G

Part no. 8P0907063G

Audi A3 8P Body Control Module Unit 8P0907063G

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BMW X3 F25 ECU ICM Control Unit Air Module Bag Safety 6860962 0265020494

Part no. 6860962

BMW X3 F25 ECU ICM Control Unit Air Module Bag Safety 6860962 0265020494

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Mercedes W205 Petrol Engine Alternator Electrical Cable A2649001000

Part no. A2649001000

Mercedes W205 Petrol Engine Alternator Electrical Cable A2649001000

Product currently unavailable

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Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102

Part no. A6461540102-1

Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102

Product currently unavailable

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BMW E39 E46 E60 E65 X3 E83 M54 Petrol Starter Motor 7515392

Part no. 2354693

BMW E39 E46 E60 E65 X3 E83 M54 Petrol Starter Motor 7515392

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BMW 3 Series E90 ECU Body Control Module H1 61356968034 6968034

Part no. 6968034

BMW 3 Series E90 ECU Body Control Module H1 61356968034 6968034

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Volkswagen Golf V GTI 2.0 TFSI AXX 200HP Engine Control ECU Kit 1K0907115 Manual

Part no. 1K0907115

Volkswagen Golf V GTI 2.0 TFSI AXX 200HP Engine Control ECU Kit 1K0907115 Manual

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Audi A5 Q7 A6 Front Crash Impact Sensor Control Unit 4L0959651

Part no. 4L0959651

Audi A5 Q7 A6 Front Crash Impact Sensor Control Unit 4L0959651

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Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655S

Part no. 8P0959655S

Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655S

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BMW 1 Series E82 ECU Body Control Module Junction Box L1 PL2 JBBFE II 9176877

Part no. 9176877-1

BMW 1 Series E82 ECU Body Control Module Junction Box L1 PL2 JBBFE II 9176877

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Door Module Mercedes GLC X253 Front Door Left Control Module A2059000328

Part no. A2059000328

Door Module Mercedes GLC X253 Front Door Left Control Module A2059000328

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Door Module Mercedes GLC X253 Rear Door Right Control Module A2059001028

Part no. A2059001028

Door Module Mercedes GLC X253 Rear Door Right Control Module A2059001028

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Engine Wiring BMW F45 Mini F60 B38 Loom Harness Injection Valve Ignition 8634244

Part no. 8634244

Engine Wiring BMW F45 Mini F60 B38 Loom Harness Injection Valve Ignition 8634244

Product currently unavailable

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Gateway Module BMW F10 F11 Central Module Control Unit Lear ZGW-02 9266409

Part no. 9266409

Gateway Module BMW F10 F11 Central Module Control Unit Lear ZGW-02 9266409

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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

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Peugeot Boxer Citroen Relay 4H03 TMF 130HP Engine Control Module ECU 9691854880

Part no. 9691854880

Peugeot Boxer Citroen Relay 4H03 TMF 130HP Engine Control Module ECU 9691854880

Product currently unavailable

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Mercedes A238 Control Unit Module Amplifier Premium Sound A2139009020

Part no. A2139009020

Mercedes A238 Control Unit Module Amplifier Premium Sound A2139009020

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BMW F20 F21 F30 F31 F32 1 Body Control Unit Module REM 9329701

Part no. 9329701-1

BMW F20 F21 F30 F31 F32 1 Body Control Unit Module REM 9329701

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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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