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 W447 Drive Train Sensor Can Distributor A0045467740

Part no. A0045467740

Mercedes W447 Drive Train Sensor Can Distributor A0045467740

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BMW E61 E92 F32 LCPA Seat Belt Control Module ECU 9129439

Part no. 9129439

BMW E61 E92 F32 LCPA Seat Belt Control Module ECU 9129439

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Mercedes ML W164 Rear Fuse Relay Box Module SRB A1645403072

Part no. A1645403072

Mercedes ML W164 Rear Fuse Relay Box Module SRB A1645403072

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Mercedes-Benz E W210 S210 CD Player Radio Audio Navi SMS Head Unit A2108205689

Part no. A2108205689

Mercedes-Benz E W210 S210 CD Player Radio Audio Navi SMS Head Unit A2108205689

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Mini One R56 LCI R60 N16 98HP Engine Control Unit ECU DME 7619335 Manual

Part no. 7619335

Mini One R56 LCI R60 N16 98HP Engine Control Unit ECU DME 7619335 Manual

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BMW X3 E83 LCI 2.0d N47 Engine ECU Kit DDE 7809999 + EWS IV  + Key Automatic

Part no. 7809999-2

BMW X3 E83 LCI 2.0d N47 Engine ECU Kit DDE 7809999 + EWS IV + Key Automatic

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BMW E93 Cabrio ECU Body Control Module H3 Junction Box 9177985

Part no. 9177985-1

BMW E93 Cabrio ECU Body Control Module H3 Junction Box 9177985

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BMW X6 E71 Rear Trunk Battery Cover Tray Storage Box 6981050

Part no. 6981050

BMW X6 E71 Rear Trunk Battery Cover Tray Storage Box 6981050

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Battery Cable Volkswagen VW Golf Mk6 VI Positive Plus Pole Lead 3C0971228K

Part no. 3C0971228K

Battery Cable Volkswagen VW Golf Mk6 VI Positive Plus Pole Lead 3C0971228K

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Mercedes W221 Seat Control Module SSG Unit Front Left Seat N/S A2218702986

Part no. A2218702986

Mercedes W221 Seat Control Module SSG Unit Front Left Seat N/S A2218702986

Product currently unavailable

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Volkswagen VW Golf Mk5 Steering Wheel Position Angle Control Unit 1K0953549BK

Part no. 1K0953549BK

Volkswagen VW Golf Mk5 Steering Wheel Position Angle Control Unit 1K0953549BK

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Audi A8 4E S8 D3 Comfort Module Electric Steering Column Unit 4E0907279S

Part no. 4E0907279S

Audi A8 4E S8 D3 Comfort Module Electric Steering Column Unit 4E0907279S

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Vauxhall Astra H Corsa D Merriva B 1.7 CDTI Engine Starter Motor 8980147432

Part no. 8980147432

Vauxhall Astra H Corsa D Merriva B 1.7 CDTI Engine Starter Motor 8980147432

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Distributor Box Mercedes W204 W207 W221 Connector Block Control Unit A0045467640

Part no. A0045467640

Distributor Box Mercedes W204 W207 W221 Connector Block Control Unit A0045467640

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Mercedes W907 DSM ISM Gearbox Control Unit Module Cloning Coding A0002704652

Part no. A0002704652

Mercedes W907 DSM ISM Gearbox Control Unit Module Cloning Coding A0002704652

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BMW F30 F32 LCI 335dX 435dX N57Z Engine Wiring Cable Loom Harness 8574019

Part no. 8574019

BMW F30 F32 LCI 335dX 435dX N57Z Engine Wiring Cable Loom Harness 8574019

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BMW X5 E53 Radio Stereo Screen Multi Functional Display Head 6914606

Part no. 6914606

BMW X5 E53 Radio Stereo Screen Multi Functional Display Head 6914606

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Mercedes C219 Rear Bumper PDC Wiring Parking Sensor Loom Harness A2195404605

Part no. A2195404605

Mercedes C219 Rear Bumper PDC Wiring Parking Sensor Loom Harness A2195404605

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Ford Transit Custom Battery Cable Positive Wiring Harness Loom KK3T-10C652-AC

Part no. KK3T-10C652-AC

Ford Transit Custom Battery Cable Positive Wiring Harness Loom KK3T-10C652-AC

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BMW E93 ECU Body Control Module H3 Junction Box 9187541

Part no. 9187541-2

BMW E93 ECU Body Control Module H3 Junction Box 9187541

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Mini Cooper R60 Wiring Passenger Loom Front Door Cables Left N/S 9809480

Part no. 9807759

Mini Cooper R60 Wiring Passenger Loom Front Door Cables Left N/S 9809480

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VW Volkswagen Transporter T5 Golf Mk4 Fuel Pump Relay Unit Grey 109 1J0906381A

Part no. 1J0906381A

VW Volkswagen Transporter T5 Golf Mk4 Fuel Pump Relay Unit Grey 109 1J0906381A

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BMW F40 Door Wiring Cable Harness Loom Rear Left Right N/O/S 8714478

Part no. 8714478

BMW F40 Door Wiring Cable Harness Loom Rear Left Right N/O/S 8714478

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Yaw Module Mercedes W221 ML W164 Rotation Rate Acceleration Sensor A0045423818

Part no. A0065427018

Yaw Module Mercedes W221 ML W164 Rotation Rate Acceleration Sensor A0045423818

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VW Volkswagen Golf SV Online Services Module Control Unit ECU 5NA035284B

Part no. 5NA035284B

VW Volkswagen Golf SV Online Services Module Control Unit ECU 5NA035284B

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Wiring Mercedes W203 W209 W211 M272 Engine Wiring Module Harness A2721501433

Part no. A2721501433

Wiring Mercedes W203 W209 W211 M272 Engine Wiring Module Harness A2721501433

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Parking Sensor PDC BMW i3 I01 Front Bumper Ultrasonic Ionic Silver B93 9302569

Part no. 9302569

Parking Sensor PDC BMW i3 I01 Front Bumper Ultrasonic Ionic Silver B93 9302569

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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400

Part no. A6399005400

Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400

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Ford Fiesta Mk7 Battery Box Tray Housing Holder Bracket 8V21-10718-AD

Part no. 8V21-10718-AD

Ford Fiesta Mk7 Battery Box Tray Housing Holder Bracket 8V21-10718-AD

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BMW 3 5 6 E60 E63 E90 Dashboard Onboard Monitor Display Screen 8.8

Part no. 9114362-1

BMW 3 5 6 E60 E63 E90 Dashboard Onboard Monitor Display Screen 8.8

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Air Module BMW F20 F21 F30 F31 Control Unit 6826984 0285013630

Part no. 6826984

Air Module BMW F20 F21 F30 F31 Control Unit 6826984 0285013630

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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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Alternator Generator Honda Civic Jazz Petrol Engine Mitsubishi 31100-PWA-004

Part no. 31100-PWA-004

Alternator Generator Honda Civic Jazz Petrol Engine Mitsubishi 31100-PWA-004

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Audi S7 4G8 Front Lamp Headlight Level Sensor 3C0907503

Part no. 3C0907503-1

Audi S7 4G8 Front Lamp Headlight Level Sensor 3C0907503

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BMW F25 F26 Head Unit Basis Media Navigation System Controller DAB 6821164

Part no. 6821164

BMW F25 F26 Head Unit Basis Media Navigation System Controller DAB 6821164

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Mercedes W204 W213 ML W166 OM642 Diesel Engine Starter Starting Unit A6429061000

Part no. A6429061000

Mercedes W204 W213 ML W166 OM642 Diesel Engine Starter Starting Unit A6429061000

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Mercedes W166 Prefuse Box F32/4 Power Distribution Box A1665402950

Part no. A1665402950

Mercedes W166 Prefuse Box F32/4 Power Distribution Box A1665402950

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Volkswagen VW Golf Mk7 Headlight Cornering Module Control Unit 3D0941329

Part no. 3D0941329

Volkswagen VW Golf Mk7 Headlight Cornering Module Control Unit 3D0941329

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Fuel Pump Control Mercedes C118 C167 W177 W247 Module ECU Receiver A0009008214

Part no. A0009015303

Fuel Pump Control Mercedes C118 C167 W177 W247 Module ECU Receiver A0009008214

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Ford Transit Connect Engine Alternator Generator Unit Diesel KK3T-10300-BB

Part no. 2650917

Ford Transit Connect Engine Alternator Generator Unit Diesel KK3T-10300-BB

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Seat Module Mercedes X164 Rear Third Row Seats Control Module A1648703726

Part no. A1648703726

Seat Module Mercedes X164 Rear Third Row Seats Control Module A1648703726

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Mercedes W177 A35 AMG 306HP 260.920 4Matic Engine ECU Control Unit A2649001200

Part no. A2649001200-4

Mercedes W177 A35 AMG 306HP 260.920 4Matic Engine ECU Control Unit A2649001200

Product currently unavailable

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Seat Wiring Mercedes C117 W176 W246 Loom Harness Cable Left N/S A2465409711

Part no. A2465409711

Seat Wiring Mercedes C117 W176 W246 Loom Harness Cable Left N/S A2465409711

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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

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Mercedes-Benz C-Class W203 W204 W211 Diesel Engine Starter Motor A0061512501

Part no. A0061512501-1

Mercedes-Benz C-Class W203 W204 W211 Diesel Engine Starter Motor A0061512501

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BMW E90 E90N E91 E91N E92 E92N E93 LCI NOX Wiring Loom Cable 7541009

Part no. 7541009

BMW E90 E90N E91 E91N E92 E92N E93 LCI NOX Wiring Loom Cable 7541009

Product currently unavailable

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BMW E87 LCI E90 Petrol N43 DME Engine Control Unit 7583225 Automatic

Part no. 7583225-14

BMW E87 LCI E90 Petrol N43 DME Engine Control Unit 7583225 Automatic

Product currently unavailable

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BMW G20 Reverse Rear View Camera 5A63731

Part no. 5A63731

BMW G20 Reverse Rear View Camera 5A63731

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VW Tiguan 5N Central Gateway Control Unit Module Relay ECU 1K0907530S

Part no. 7N0907530AF

VW Tiguan 5N Central Gateway Control Unit Module Relay ECU 1K0907530S

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Mercedes W213 Bluetooth Module Multimedia Control Unit ECU A2138203202

Part no. A2138203202

Mercedes W213 Bluetooth Module Multimedia Control Unit ECU A2138203202

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Audi A3 8P Starter Motor Engine Diesel Actuator Unit 02A911023 LRS00791

Part no. 02A911023

Audi A3 8P Starter Motor Engine Diesel Actuator Unit 02A911023 LRS00791

Product currently unavailable

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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Unit DDE 7823973 Manual

Part no. 7823973-4

BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Unit DDE 7823973 Manual

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Mini Countryman F60 BMW F45 X1 F48 Air Module Control Unit ECU 7911252

Part no. 7911252

Mini Countryman F60 BMW F45 X1 F48 Air Module Control Unit ECU 7911252

Product currently unavailable

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VW Volkswagen Golf Mk5 V 1K Air Module Control Unit ECU 1K0909605T

Part no. 1K0909605T

VW Volkswagen Golf Mk5 V 1K Air Module Control Unit ECU 1K0909605T

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Renault Trafic Opel Vivaro Diesel Starter Motor 8200568535

Part no. 8200568535

Renault Trafic Opel Vivaro Diesel Starter Motor 8200568535

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Mercedes W221 Head Unit Radio Player Media Navigation DVD Changer A2218702686

Part no. A2218702686

Mercedes W221 Head Unit Radio Player Media Navigation DVD Changer A2218702686

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Negative Cable Mercedes C117 W176 Battery Lead Minus Pole Wiring A1765400009

Part no. A1765400009

Negative Cable Mercedes C117 W176 Battery Lead Minus Pole Wiring A1765400009

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Audi A4 B9 Air Module System Control Sensor ECU Unit 8W0959655P

Part no. 8W0959655P

Audi A4 B9 Air Module System Control Sensor ECU Unit 8W0959655P

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BMW E60 E65 E70 E87 E90 F10 F20 F30 N52 N53 Petrol Engine Starter Motor 7521122

Part no. 7521122-1

BMW E60 E65 E70 E87 E90 F10 F20 F30 N52 N53 Petrol Engine Starter Motor 7521122

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BMW X1 E84 ECU Body Control Module Unit Junction Box H2 PL2RR JBBFE IIIR 9264573

Part no. 9264573-2

BMW X1 E84 ECU Body Control Module Unit Junction Box H2 PL2RR JBBFE IIIR 9264573

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Mercedes ML W164 Fuse Box Relay Control Unit Rear A1645403372

Part no. A1645403372-1

Mercedes ML W164 Fuse Box Relay Control Unit Rear A1645403372

Product currently unavailable

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Valvetronic Wiring BMW F20 F30 LCI B48 Petrol Engine Actuator Cable Loom 8636066

Part no. 8636066

Valvetronic Wiring BMW F20 F30 LCI B48 Petrol Engine Actuator Cable Loom 8636066

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Engine Wiring Renault Trafic 2 Loom Module Harness Cable 275850906R

Part no. 275850906R

Engine Wiring Renault Trafic 2 Loom Module Harness Cable 275850906R

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Engine Wiring BMW F10 F11 520d N47N Diesel Loom Harness Cable 7823648

Part no. 7823648

Engine Wiring BMW F10 F11 520d N47N Diesel Loom Harness Cable 7823648

Product currently unavailable

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Mercedes CLK W209 Automatic Gearbox EGS Control Unit Module ECU A0325452332

Part no. A0325452332

Mercedes CLK W209 Automatic Gearbox EGS Control Unit Module ECU A0325452332

Product currently unavailable

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Mercedes ML W164 Fuse Box Relay Control Unit Rear A1645403372

Part no. A1645403372

Mercedes ML W164 Fuse Box Relay Control Unit Rear A1645403372

Product currently unavailable

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BMW E81 E87 E90 E91 E92 Radio CD Professional 9150109 65129150109

Part no. 9150109

BMW E81 E87 E90 E91 E92 Radio CD Professional 9150109 65129150109

Product currently unavailable

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Mercedes W212 Rain Light Solar Condensation Sensor Control Unit A2049014503

Part no. A2049014503

Mercedes W212 Rain Light Solar Condensation Sensor Control Unit A2049014503

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Cover BMW F13 F12 F11 Engine Control Unit ECU Box Top Cover Shield 7555178

Part no. 7555178

Cover BMW F13 F12 F11 Engine Control Unit ECU Box Top Cover Shield 7555178

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Mini Cooper S R52 R53 W11 170HP Engine ECU Kit DME 7545789 + EWS + Key Manual

Part no. 7545789-16

Mini Cooper S R52 R53 W11 170HP Engine ECU Kit DME 7545789 + EWS + Key Manual

Product currently unavailable

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BMW Z4 Series E85 Roadster Driver's Side Door Wiring Loom Cable 6933950

Part no. 6933950

BMW Z4 Series E85 Roadster Driver's Side Door Wiring Loom Cable 6933950

Product currently unavailable

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Ford Transit Connect 1.6 TDCI Engine Control ECU Module Manual DV6112A650CEC

Part no. DV6112A650CEC

Ford Transit Connect 1.6 TDCI Engine Control ECU Module Manual DV6112A650CEC

Product currently unavailable

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Mercedes-Benz W245 Front Bumper Parking Sensor Parktronic Wiring Cable Harness

Part no. A1695406805

Mercedes-Benz W245 Front Bumper Parking Sensor Parktronic Wiring Cable Harness

Product currently unavailable

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Bluetooth Module BMW E81 E87 E90 E91 Hands Free High MULF2 Harman Becker 9183373

Part no. 9183373

Bluetooth Module BMW E81 E87 E90 E91 Hands Free High MULF2 Harman Becker 9183373

Product currently unavailable

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VW Caddy 1.9 TDI BLS 105HP Engine Control Unit Module ECU 03G906021PD Manual

Part no. 03G906021PD

VW Caddy 1.9 TDI BLS 105HP Engine Control Unit Module ECU 03G906021PD Manual

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Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489

Part no. A2098205489-1

Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489

Product currently unavailable

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BCM Module Mercedes W117 W176 W246 Body Control Module Unit ECU A1569003203

Part no. A1569003203

BCM Module Mercedes W117 W176 W246 Body Control Module Unit ECU A1569003203

Product currently unavailable

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Audi A4 B9 A5 F5 2.0 Diesel Starter Motor Engine Valeo 05L911021 0001174006

Part no. 05L911021

Audi A4 B9 A5 F5 2.0 Diesel Starter Motor Engine Valeo 05L911021 0001174006

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Audi TT 8N Amplifier BOSE Premium Audio Sound System Module 8N8035223A

Part no. 8N8035223A

Audi TT 8N Amplifier BOSE Premium Audio Sound System Module 8N8035223A

Product currently unavailable

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BMW 1 Series E82 Wiring Loom Set Rear Complete Harness PDC Parking Sensor

Part no. E82 Wiring Loom Set PDC rear -1

BMW 1 Series E82 Wiring Loom Set Rear Complete Harness PDC Parking Sensor

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Mercedes W213 Power Relay 4 Pin 12V Hella A0009828223 SET x2

Part no. A0009828223-1

Mercedes W213 Power Relay 4 Pin 12V Hella A0009828223 SET x2

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Alternator Generator Mercedes W164 OM642 180A Electrical Unit Diesel A6421540502

Part no. A6421540502

Alternator Generator Mercedes W164 OM642 180A Electrical Unit Diesel A6421540502

Product currently unavailable

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Audi Q7 4L Amplifier BOSE Premium Audio Sound System Module 4L0035223J

Part no. 4L0035223J

Audi Q7 4L Amplifier BOSE Premium Audio Sound System Module 4L0035223J

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Alternator Ford Transit MK2 Sierra Scorpio 2.0 Engine Generator 1406067

Part no. 1406067

Alternator Ford Transit MK2 Sierra Scorpio 2.0 Engine Generator 1406067

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Peugeot Partner Glow Plug Relay Control Unit Module 9640469680

Part no. 9640469680-1

Peugeot Partner Glow Plug Relay Control Unit Module 9640469680

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Stereo Head Unit Mini Cooper One R55 R56 R57 Radio Boost CD Player 3453634

Part no. 3453634

Stereo Head Unit Mini Cooper One R55 R56 R57 Radio Boost CD Player 3453634

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Door Cable Mercedes W212 Wiring Loom Front Left N/S Passenger Side A2124401651

Part no. A2124401651

Door Cable Mercedes W212 Wiring Loom Front Left N/S Passenger Side A2124401651

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Mercedes-Benz W203 M111 C 200 230 K Bosch Alternator Generator A0111547202

Part no. A0111547202

Mercedes-Benz W203 M111 C 200 230 K Bosch Alternator Generator A0111547202

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BMW E90 Body Control Module M Junction Box PL2RR JBBFE IIIR ECU 9364819

Part no. 9364819-3

BMW E90 Body Control Module M Junction Box PL2RR JBBFE IIIR ECU 9364819

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Mercedes S204 Estate Fuse Box Rear SAM Module Control Unit A2049005003

Part no. A2049005003

Mercedes S204 Estate Fuse Box Rear SAM Module Control Unit A2049005003

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Ford Transit Connect Negative Battery Terminal Cable Wiring 9T1T-14A280-MBC

Part no. 9T1T-14A280-MBC

Ford Transit Connect Negative Battery Terminal Cable Wiring 9T1T-14A280-MBC

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STAG QBOX Basic LPG CNG 4-Cylinder Control Unit Module Injection Controller ECU

Part no. STAG QBOX

STAG QBOX Basic LPG CNG 4-Cylinder Control Unit Module Injection Controller ECU

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Audi A3 8P Speaker Tweeter Front Left Right N/O/S Pillar A 8P0035399B

Part no. 8P0035399B

Audi A3 8P Speaker Tweeter Front Left Right N/O/S Pillar A 8P0035399B

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Audi Q3 8U Air Module Crash Impact Sensor Control Unit 8U0959651

Part no. 8U0959651

Audi Q3 8U Air Module Crash Impact Sensor Control Unit 8U0959651

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Ford Transit MK7 2.4 TDCI T24DD0P Diesel Engine Control Unit ECU AC1112A650BC

Part no. AC1112A650BC

Ford Transit MK7 2.4 TDCI T24DD0P Diesel Engine Control Unit ECU AC1112A650BC

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Mercedes W164 W251 Fuse Box Fuse And Relay Module Rear Unit A1645402372

Part no. A1645402372-1

Mercedes W164 W251 Fuse Box Fuse And Relay Module Rear Unit A1645402372

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MINI Cooper R52 R53 W11 170HP Engine ECU Control Unit DME 7545789 Manual

Part no. 7545789-14

MINI Cooper R52 R53 W11 170HP Engine ECU Control Unit DME 7545789 Manual

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BMW F15 F16 F31 F36 Module Control Unit Trunk Lid Rear Tailgate Lift 7384722

Part no. 7412610

BMW F15 F16 F31 F36 Module Control Unit Trunk Lid Rear Tailgate Lift 7384722

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 BMW G20 Head Unit Navigation Audio Player Controller Module 9875930

Part no. 9875930

BMW G20 Head Unit Navigation Audio Player Controller Module 9875930

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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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