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 F30 F31 F32 F34 LCI Starter Motor Bosch B48 Petrol 8621838

Part no. 8621838

BMW F20 F21 F30 F31 F32 F34 LCI Starter Motor Bosch B48 Petrol 8621838

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BMW X5 E70 M Audio Professional Radio CD Player Navigation Head Unit 9186211

Part no. 9186211

BMW X5 E70 M Audio Professional Radio CD Player Navigation Head Unit 9186211

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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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Engine Harness Mini F56 F60 BMW F40 F46 Sensor System Module 2 Wiring 8678972

Part no. 8678972

Engine Harness Mini F56 F60 BMW F40 F46 Sensor System Module 2 Wiring 8678972

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Mercedes W164 W251 Air Suspension Level Control Unit Module Airmatic A2515454132

Part no. A2515454132

Mercedes W164 W251 Air Suspension Level Control Unit Module Airmatic A2515454132

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Mercedes W205 W253 CD Radio Audio Sat Nav Navigation Head Unit A2059005036

Part no. A2059005036

Mercedes W205 W253 CD Radio Audio Sat Nav Navigation Head Unit A2059005036

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Engine Wiring Mercedes Vito W447 OM651 Engine Harness Cable A4474404705

Part no. A4474404705

Engine Wiring Mercedes Vito W447 OM651 Engine Harness Cable A4474404705

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Cable BMW E39 Petrol Engine M52 Alternator Starter Cable Wire B+ 7503505

Part no. 7503505

Cable BMW E39 Petrol Engine M52 Alternator Starter Cable Wire B+ 7503505

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Ford Transit MK6 2.4 Diesel Engine Alternator Generator 4461712

Part no. 4461712-1

Ford Transit MK6 2.4 Diesel Engine Alternator Generator 4461712

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

Part no. 7550975-1

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

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Mercedes GLC X253 GLC 220d Diesel OM651 Engine Starter Motor Bosch A6519064800

Part no. A6519064800

Mercedes GLC X253 GLC 220d Diesel OM651 Engine Starter Motor Bosch A6519064800

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BMW F10 F20 F30 Petrol N20 Wiring Harness Motor Sensor System 2 Module

Part no. 7641661-2

BMW F10 F20 F30 Petrol N20 Wiring Harness Motor Sensor System 2 Module

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Mercedes GLC X253 Rear Trunk Lid Automatic Closing Lock Mechanism A2059007218

Part no. A2059007218-1

Mercedes GLC X253 Rear Trunk Lid Automatic Closing Lock Mechanism A2059007218

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Battery Cable BMW X5 F15 Positive Plus Pole Distribution Box Wiring SBK3 9322056

Part no. 9322056

Battery Cable BMW X5 F15 Positive Plus Pole Distribution Box Wiring SBK3 9322056

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Led Indicator Module BMW F32 F33 F36 F80 F82 F83 Light Signal Blinker 7493232

Part no. 7493232

Led Indicator Module BMW F32 F33 F36 F80 F82 F83 Light Signal Blinker 7493232

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Headlight Module BMW F83 M4 F33 LCi FLE2 Front Lights Right Left N/O/S 8494843

Part no. 8494843

Headlight Module BMW F83 M4 F33 LCi FLE2 Front Lights Right Left N/O/S 8494843

Product currently unavailable

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PDC Module Citroen C4 Berlingo Peugeot Parking Assist Control 0263004204

Part no. 0263004204

PDC Module Citroen C4 Berlingo Peugeot Parking Assist Control 0263004204

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Mercedes W210 Fuse Box Sam Module Control Unit A0025451901

Part no. A0025451901

Mercedes W210 Fuse Box Sam Module Control Unit A0025451901

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BMW E39 Radio Business Cassette Player 6958566 8377005

Part no. 6958566

BMW E39 Radio Business Cassette Player 6958566 8377005

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ESP Module Mercedes W210 Electronic Stability Program Control Unit A0275455632

Part no. A0275455632

ESP Module Mercedes W210 Electronic Stability Program Control Unit A0275455632

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Door Module BMW E39 Passenger Door Control Module Hella 8378766 6904242

Part no. 8378766

Door Module BMW E39 Passenger Door Control Module Hella 8378766 6904242

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Mercedes W210 Petrol M112 Automatic Transmission Control Module A0245458432

Part no. A0245458432

Mercedes W210 Petrol M112 Automatic Transmission Control Module A0245458432

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Volkswagen Golf Mk5 Seat Skoda Air Control Module Unit 1K0909605R

Part no. 1K0909605R

Volkswagen Golf Mk5 Seat Skoda Air Control Module Unit 1K0909605R

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Audi A4 B7 Audio Sound System Amplifier Bose 355013  5631B6

Part no. 355013 ampassy 5631b6

Audi A4 B7 Audio Sound System Amplifier Bose 355013 5631B6

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 Audi A4 B7 Bluetooth Interface Phone Conectivity Control Module 8P0862335H

Part no. 8P0862335H

Audi A4 B7 Bluetooth Interface Phone Conectivity Control Module 8P0862335H

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BMW 5 Series E39 Right O/S Air Box Pollen Microfilter Service Cover 8379626

Part no. 8379626

BMW 5 Series E39 Right O/S Air Box Pollen Microfilter Service Cover 8379626

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BMW 5 Series E39 Left N/S Air Box Pollen Microfilter Service Cover 8379627

Part no. 8379627

BMW 5 Series E39 Left N/S Air Box Pollen Microfilter Service Cover 8379627

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Camera Module BMW F10 F20 F12 F87 Reversing Camera Rear View Control 6994555

Part no. 6994555

Camera Module BMW F10 F20 F12 F87 Reversing Camera Rear View Control 6994555

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PDC Module BMW E39 Parking Assist Distance Control Module PDC  8385232

Part no. 8385232

PDC Module BMW E39 Parking Assist Distance Control Module PDC 8385232

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Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A  7533270

Part no. 7533270-1

Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A 7533270

Product currently unavailable

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Mercedes ML W164 Distronic Radar Sensor Cruise Control Unit Module A2165402945

Part no. A2165402945-1

Mercedes ML W164 Distronic Radar Sensor Cruise Control Unit Module A2165402945

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BMW E39 523i Petrol M52 Immobiliser EWS 3 Control Module Siemens 8382454

Part no. 8382454

BMW E39 523i Petrol M52 Immobiliser EWS 3 Control Module Siemens 8382454

Product currently unavailable

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BMW 3 5 Series E39 E46 Airbag Control Unit Module 8372521

Part no. 8372521

BMW 3 5 Series E39 E46 Airbag Control Unit Module 8372521

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BMW E65 Navigation GPS DVD System Computer Unit 6959114

Part no. 6959114

BMW E65 Navigation GPS DVD System Computer Unit 6959114

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BMW E39 Headlight Control Module LCM III LWR  8386207

Part no. 8386207

BMW E39 Headlight Control Module LCM III LWR 8386207

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Mercedes W205 Center Console Ambient Lighting Light Wiring Harness A2055402324

Part no. A2055402324

Mercedes W205 Center Console Ambient Lighting Light Wiring Harness A2055402324

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Alternator BMW F10 F13 F07GT F02 Petrol N63 Alternator valeo 230A 7603779

Part no. 7603779

Alternator BMW F10 F13 F07GT F02 Petrol N63 Alternator valeo 230A 7603779

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Ignition Harness BMW F10 F12 F07 GT Petrol N63 Engine Ignition Wiring 7614896

Part no. 7614896

Ignition Harness BMW F10 F12 F07 GT Petrol N63 Engine Ignition Wiring 7614896

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BMW F10 F11 LCI 520d B47 190HP Engine ECU Kit DDE 8591073 CAS4 Key Automatic

Part no. 8591073-4

BMW F10 F11 LCI 520d B47 190HP Engine ECU Kit DDE 8591073 CAS4 Key Automatic

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Starter BMW F10 F07GT F13 F03 X5 E70 Petrol N63 Starter Motor 1.6 KW 7556131

Part no. 7556131

Starter BMW F10 F07GT F13 F03 X5 E70 Petrol N63 Starter Motor 1.6 KW 7556131

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Mercedes W177 W247 Positive Battery Cable Lead Wire Starter A1775407932

Part no. A1775407932-1

Mercedes W177 W247 Positive Battery Cable Lead Wire Starter A1775407932

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BMW E89 Light Led Module Footwell Unit Lear FRM3R PL2 9241006

Part no. 9241006

BMW E89 Light Led Module Footwell Unit Lear FRM3R PL2 9241006

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Door Module Mercedes Vito W447 Rear Right O/S Door Control Unit A4479000101

Part no. A4479000101

Door Module Mercedes Vito W447 Rear Right O/S Door Control Unit A4479000101

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BMW X5 F15 X6 F16 30dX N57N 258HP Engine ECU Kit DDE 8586540 BDC Key Automatic

Part no. 8586540-4

BMW X5 F15 X6 F16 30dX N57N 258HP Engine ECU Kit DDE 8586540 BDC Key Automatic

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ECU Mercedes W124 E280 M103.940 Engine Control Unit Automatic Jetronic

Part no. A0075451432

ECU Mercedes W124 E280 M103.940 Engine Control Unit Automatic Jetronic

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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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Air Module Mercedes Vito W639 Sprinter W906 Control Unit ECU Sensor A9064461542

Part no. A9064461542

Air Module Mercedes Vito W639 Sprinter W906 Control Unit ECU Sensor A9064461542

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Mercedes W205 C 220d BlueEFFICIENCY 651.921 170HP Engine ECU Unit A6519005203

Part no. A6519005203-2

Mercedes W205 C 220d BlueEFFICIENCY 651.921 170HP Engine ECU Unit A6519005203

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Mercedes W124 E280 Comfort Control Module Unit ECU A2028200926

Part no. A2028200926

Mercedes W124 E280 Comfort Control Module Unit ECU A2028200926

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Relay Mercedes W124 E280 Petrol Fuel Pump Cut Off Relay A0035452405

Part no. A0035452405

Relay Mercedes W124 E280 Petrol Fuel Pump Cut Off Relay A0035452405

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Relay Mercedes W124 Indicators Wipers Hazard Lights Relay A2018210047

Part no. A2018210047

Relay Mercedes W124 Indicators Wipers Hazard Lights Relay A2018210047

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Relay Mercedes W124 E280 Fuse Box Light Control Relay A1265420332

Part no. A1265420332

Relay Mercedes W124 E280 Fuse Box Light Control Relay A1265420332

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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000300

Part no. A6399000300-1

Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000300

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BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124

Part no. 8634124

BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124

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Wiring Mini R55 R57 LCI R58 R60 Petrol N18 Injection Ignition Harness 7620625

Part no. 7620625

Wiring Mini R55 R57 LCI R58 R60 Petrol N18 Injection Ignition Harness 7620625

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Mercedes Vito W447 Fuse Relay Box Control Module A4475404326

Part no. A4475404326

Mercedes Vito W447 Fuse Relay Box Control Module A4475404326

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Mercedes W447 Fuse Box Module Cover Trim Trunk A4475460064

Part no. A4475460064

Mercedes W447 Fuse Box Module Cover Trim Trunk A4475460064

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BMW 1 3 F20 F21 F30 F31 Parking Assistant PDC Control Unit Module 6851822

Part no. 6886211

BMW 1 3 F20 F21 F30 F31 Parking Assistant PDC Control Unit Module 6851822

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Head Unit Mercedes W447 Radio Navigation Audio 15 Control Unit A4479002405

Part no. A4479002405

Head Unit Mercedes W447 Radio Navigation Audio 15 Control Unit A4479002405

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Mercedes C238 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2385407716

Part no. A2385407716

Mercedes C238 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2385407716

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Mercedes C238 Head Unit Radio CD Player Audio Sat Nav Control  A2229009519

Part no. A2229009519

Mercedes C238 Head Unit Radio CD Player Audio Sat Nav Control A2229009519

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BMW F10 Central Gateway Module Control Unit Lear ZGW-02 4SK 9393660

Part no. 9393660

BMW F10 Central Gateway Module Control Unit Lear ZGW-02 4SK 9393660

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Comfort Module Unit BMW F20 F21 F30 F31 F32 Body Control FEM ECU LR01 6825538

Part no. 6825538

Comfort Module Unit BMW F20 F21 F30 F31 F32 Body Control FEM ECU LR01 6825538

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Mercedes ML W163 Stability Controller 4ESP Unit Module ECU A1635458032

Part no. A1635458032

Mercedes ML W163 Stability Controller 4ESP Unit Module ECU A1635458032

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Suspension Module BMW F82 Rear Axle Dynamic Suspension Control Module 6895714

Part no. 6895714

Suspension Module BMW F82 Rear Axle Dynamic Suspension Control Module 6895714

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BMW Z4 E89 Professional Navigation System Computer CIC 9218337

Part no. 9218337

BMW Z4 E89 Professional Navigation System Computer CIC 9218337

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BMW X5 E70 LCI 40dX N57S 306HP Engine ECU KIT DDE 8512411 CAS3 Key Automatic

Part no. 8512411-1

BMW X5 E70 LCI 40dX N57S 306HP Engine ECU KIT DDE 8512411 CAS3 Key Automatic

Product currently unavailable

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BMW Z4 E89 Body Control Module H3 Junction Box ECU  9229880

Part no. 9229880-1

BMW Z4 E89 Body Control Module H3 Junction Box ECU 9229880

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Amplifier BMW F82 F87 F80 F83 Active Sound Design Control Unit 8729433

Part no. 8729433

Amplifier BMW F82 F87 F80 F83 Active Sound Design Control Unit 8729433

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 Camera Control Module BMW F30 F32 F82 Top Rear View Unit 6994554

Part no. 6994554

Camera Control Module BMW F30 F32 F82 Top Rear View Unit 6994554

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Communication Module BMW M4 F82 Telematic Bluetooth Control Unit  8734753

Part no. 8734753

Communication Module BMW M4 F82 Telematic Bluetooth Control Unit 8734753

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Alternator BMW Z4 E89 23i 30i N52N Alternator Denso 170A 14V 7552815

Part no. 7552815-1

Alternator BMW Z4 E89 23i 30i N52N Alternator Denso 170A 14V 7552815

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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

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Engine Starter BMW F20 F21 F22 F30 F32 N47N Diesel Motor Bosch

Part no. 8571905-4

Engine Starter BMW F20 F21 F22 F30 F32 N47N Diesel Motor Bosch

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Starter BMW E60 M57 Engine Starter Motor 7794952 0986021230

Part no. 7794952-3

Starter BMW E60 M57 Engine Starter Motor 7794952 0986021230

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CD Player BMW E60 E61 LCI E63 E64 Radio Stereo CHAMP Business Head Unit 9187903

Part no. 9187903-2

CD Player BMW E60 E61 LCI E63 E64 Radio Stereo CHAMP Business Head Unit 9187903

Product currently unavailable

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Volkswagen VW Crafter Battery Lead Positive Cable Plus Pole Wiring VW9065400105

Part no. VW9065400105

Volkswagen VW Crafter Battery Lead Positive Cable Plus Pole Wiring VW9065400105

Product currently unavailable

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BMW F10 Footwell Light Control Unit Module ECU FRM III 9236461

Part no. 9236461

BMW F10 Footwell Light Control Unit Module ECU FRM III 9236461

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ECU Mercedes C205 C250d Diesel OM651.921 204HP Engine Control Unit Automatic

Part no. A6519005203-1

ECU Mercedes C205 C250d Diesel OM651.921 204HP Engine Control Unit Automatic

Product currently unavailable

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BMW Z4 E85 2.5i M54 192HP Engine ECU Control Unit Module DME 7527072 Manual

Part no. 7527072-7

BMW Z4 E85 2.5i M54 192HP Engine ECU Control Unit Module DME 7527072 Manual

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BMW X6 E71 Footwell Light Control Unit Module FRM3R LEAR 9308373

Part no. 9308373

BMW X6 E71 Footwell Light Control Unit Module FRM3R LEAR 9308373

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Ford Transit Connect 1.8 TDCi Battery Positive Cable Clamp Wiring 2T1T14A280CG

Part no. 2T1T-14A280-CG

Ford Transit Connect 1.8 TDCi Battery Positive Cable Clamp Wiring 2T1T14A280CG

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BMW G01 G02 B47D Wiring Harness Engine Recuperation System Supply Module 8477121

Part no. 8477121

BMW G01 G02 B47D Wiring Harness Engine Recuperation System Supply Module 8477121

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

Part no. 6836504

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

Product currently unavailable

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Vauxhall Combo D 1.3 Cdti A13FD  Engine Wiring Harness Loom 00552479600

Part no. 00552479600

Vauxhall Combo D 1.3 Cdti A13FD Engine Wiring Harness Loom 00552479600

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BMW G11 G30 G31 X4 F26 Telematics Module Bluetooth Control Unit ECU 2447787

Part no. 2447787

BMW G11 G30 G31 X4 F26 Telematics Module Bluetooth Control Unit ECU 2447787

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Mercedes W205 W217 W222 Tailgate Trunk Control Module Unit A2229006008

Part no. A2229006008

Mercedes W205 W217 W222 Tailgate Trunk Control Module Unit A2229006008

Product currently unavailable

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Mercedes W203 W211 C209 M271 Petrol Engine Alternator A2711540802

Part no. A2711540802-1

Mercedes W203 W211 C209 M271 Petrol Engine Alternator A2711540802

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Vauxhall Combo D 1.3 Cdti Fiat Lancia Alternator Engine Genarator 95511910

Part no. 95511910

Vauxhall Combo D 1.3 Cdti Fiat Lancia Alternator Engine Genarator 95511910

Product currently unavailable

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BMW F45 Active Tourer LED Module Cornering Light Front Right O/S Unit 7391400

Part no. 7391400

BMW F45 Active Tourer LED Module Cornering Light Front Right O/S Unit 7391400

Product currently unavailable

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BMW E46 Control Unit Module Mirror Memory 6913364

Part no. 6913364

BMW E46 Control Unit Module Mirror Memory 6913364

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BMW F25 F26 F15 F16 Audio Amplifier Harman Kardon Surround Sound System 9393182

Part no. 9393182

BMW F25 F26 F15 F16 Audio Amplifier Harman Kardon Surround Sound System 9393182

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BMW E46 Audio Amplifier Hifi Harman Kardon  Sound System 8380068

Part no. 8380068

BMW E46 Audio Amplifier Hifi Harman Kardon Sound System 8380068

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BMW X4 F25 F36 F85 F15 Shark Roof Fin Antenna Aerial Module Unit 9291486

Part no. 9291486

BMW X4 F25 F36 F85 F15 Shark Roof Fin Antenna Aerial Module Unit 9291486

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Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit 2KW 7788680

Part no. 7788680-4

Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit 2KW 7788680

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Mercedes Vito W639 Parking Sensor Warning Device Display A0015422623

Part no. A0015422623-1

Mercedes Vito W639 Parking Sensor Warning Device Display A0015422623

Product currently unavailable

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Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012

Part no. A2469000012-1

Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012

Product currently unavailable

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BMW Z4 Series E89 Roadster Boardmonitor Central Information Display 9210504

Part no. 9210504

BMW Z4 Series E89 Roadster Boardmonitor Central Information Display 9210504

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Mercedes Sprinter W906 Alternator Generator Diesel 180A 14V A0009068802

Part no. A0009068802-1

Mercedes Sprinter W906 Alternator Generator Diesel 180A 14V A0009068802

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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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