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 Vito W639 Parking Sensor Warning Device Display A0015422623

Part no. A0015422623-1

Mercedes Vito W639 Parking Sensor Warning Device Display A0015422623

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Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640

Part no. A9065451640

Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640

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Communication Module Mercedes W205 W213 C253 Hermes LTE Control Unit A2389007704

Part no. A2389007704

Communication Module Mercedes W205 W213 C253 Hermes LTE Control Unit A2389007704

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Mercedes W639 Front Bumper PDC Wiring Parking Sensor Loom Harness A6394408537

Part no. A6394408537

Mercedes W639 Front Bumper PDC Wiring Parking Sensor Loom Harness A6394408537

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Mercedes Vito W639 OM646.980 Engine ECU Control Unit Module A6461500977 Manual

Part no. A6461500977

Mercedes Vito W639 OM646.980 Engine ECU Control Unit Module A6461500977 Manual

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Mercedes-Benz A B W169 W245 Door Cable Harness Wiring Loom Front Left N/S

Part no. A1695407705

Mercedes-Benz A B W169 W245 Door Cable Harness Wiring Loom Front Left N/S

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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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Ignition Coil Mercedes W202 W203 M111 Cable Connector A0001501780

Part no. A0001501780

Ignition Coil Mercedes W202 W203 M111 Cable Connector A0001501780

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SRC Module Mercedes W213 Air Safety Module SRS Control Unit ECU A2139009022

Part no. A2139009022

SRC Module Mercedes W213 Air Safety Module SRS Control Unit ECU A2139009022

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Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100

Part no. A2465410100

Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100

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Mercedes C118 W177 W247 Body Control Module BCM V2 A2479001506

Part no. A2479001506

Mercedes C118 W177 W247 Body Control Module BCM V2 A2479001506

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Mercedes W168 Vaneo W414 Diesel Engine Speed Starter Motor A0051511601

Part no. A0051511601

Mercedes W168 Vaneo W414 Diesel Engine Speed Starter Motor A0051511601

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Mercedes W203 W204 Petrol Engine Starter Motor A0061510501

Part no. A0061510501

Mercedes W203 W204 Petrol Engine Starter Motor A0061510501

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Head Unit Mercedes GLA X156 Radio Media Player Navigation Switch A2469000816

Part no. A2469000816

Head Unit Mercedes GLA X156 Radio Media Player Navigation Switch A2469000816

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Mercedes-Benz S-Class W220 Central Gateway Control Unit Module ECU A2205402445

Part no. A2205402445

Mercedes-Benz S-Class W220 Central Gateway Control Unit Module ECU A2205402445

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Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R

Part no. A4159064900

Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R

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Mercedes W204 W212 Windscreen Rain Sensor Control Unit A2049017801

Part no. A2049017801

Mercedes W204 W212 Windscreen Rain Sensor Control Unit A2049017801

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Mercedes W166 W205 W212 Rear Bumper Blind Spot Radar Sensor Module A0009058802

Part no. A0009058802

Mercedes W166 W205 W212 Rear Bumper Blind Spot Radar Sensor Module A0009058802

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Alternator Generator Mercedes W221 OM642 Diesel Engine 220A A0131540602 11304N

Part no. A0131540602

Alternator Generator Mercedes W221 OM642 Diesel Engine 220A A0131540602 11304N

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Parking Sensor Wiring Mercedes W177 V177 Rear Bumper PDC Loom Cable A1775400630

Part no. A1775400630

Parking Sensor Wiring Mercedes W177 V177 Rear Bumper PDC Loom Cable A1775400630

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Mercedes SLK R172 Amplifier Audio Sound Control Unit Module Harman A1729008612

Part no. A1729008612

Mercedes SLK R172 Amplifier Audio Sound Control Unit Module Harman A1729008612

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Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204126

Part no. A1718203126

Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204126

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Mercedes W166 W204 R231 Alternator Generator 180A 14V A0009063622

Part no. A0009063622

Mercedes W166 W204 R231 Alternator Generator 180A 14V A0009063622

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Mercedes ML W164 Rear SAM Module Control Unit Fuse Box A1645400701

Part no. A1645400701

Mercedes ML W164 Rear SAM Module Control Unit Fuse Box A1645400701

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Mercedes W205 C 200 d 626951 626.951 136HP Engine Unit ECU A6269000000 Automatic

Part no. A6269000000

Mercedes W205 C 200 d 626951 626.951 136HP Engine Unit ECU A6269000000 Automatic

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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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Mercedes-Benz S W220 Seat Memory Control Unit Module Front Left A2208203185

Part no. A2208203185

Mercedes-Benz S W220 Seat Memory Control Unit Module Front Left A2208203185

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Mercedes ML W164 Transfer Case Box Module Control Unit ECU A1645408662

Part no. A1645408662

Mercedes ML W164 Transfer Case Box Module Control Unit ECU A1645408662

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Mercedes ML164 Alternator Wiring Starter Motor Harness OM642  A1645400436

Part no. A1645400436

Mercedes ML164 Alternator Wiring Starter Motor Harness OM642 A1645400436

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Mercedes W213 Dashboard Switch Panel A2139053303

Part no. A2139053303

Mercedes W213 Dashboard Switch Panel A2139053303

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Mercedes W221 Air Suspension ABC Control Unit Module A2219009603

Part no. A2219009603

Mercedes W221 Air Suspension ABC Control Unit Module A2219009603

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Mercedes-Benz C-Class W203 1 SAM Control Unit Module Fuse Box Rear A0035455201

Part no. A0035455201-1

Mercedes-Benz C-Class W203 1 SAM Control Unit Module Fuse Box Rear A0035455201

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Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386

Part no. A1718200386

Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386

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Distance Radar Module Mercedes GLE W166 C292 Control Unit A0009059906

Part no. A0009059906

Distance Radar Module Mercedes GLE W166 C292 Control Unit A0009059906

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Bowden Cable Mercedes W639 Rear Sliding Door Exterior Handle Wire A6397601704

Part no. A6397601704

Bowden Cable Mercedes W639 Rear Sliding Door Exterior Handle Wire A6397601704

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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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Mercedes ML W164 W251 Fuse Box Relay Module Control Unit A1645403572

Part no. A1645403572

Mercedes ML W164 W251 Fuse Box Relay Module Control Unit A1645403572

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Mercedes C209 CLK220 CDI 646.966 Engine ECU Kit A6461505091 Keys Lock Automatic

Part no. A6461505091-1

Mercedes C209 CLK220 CDI 646.966 Engine ECU Kit A6461505091 Keys Lock Automatic

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Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823

Part no. A0009824823

Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823

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Mercedes V251 SAM Body Control Module Rear Unit A1649007000

Part no. A1649007000

Mercedes V251 SAM Body Control Module Rear Unit A1649007000

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Mercedes W204 C350 CDI OM642.830 Engine Module ECU Kit A6429002900 Key + Lock

Part no. A6429002900-7

Mercedes W204 C350 CDI OM642.830 Engine Module ECU Kit A6429002900 Key + Lock

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Mercedes-Benz Vito W639 Radio Fan Adapter Control Unit Module A6398200942

Part no. A6398200942

Mercedes-Benz Vito W639 Radio Fan Adapter Control Unit Module A6398200942

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Mercedes W212 Rear Suspension Level Sensor Wiring Loom Cable Harness A2125402705

Part no. A2125402705

Mercedes W212 Rear Suspension Level Sensor Wiring Loom Cable Harness A2125402705

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Mercedes W205 W213 Actuator Drive Exhaust Flap Control Unit A2139068601

Part no. A2139068601

Mercedes W205 W213 Actuator Drive Exhaust Flap Control Unit A2139068601

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Mercedes W216 W221 Central Gateway Control Unit Module VST A2219006702

Part no. A2219006702

Mercedes W216 W221 Central Gateway Control Unit Module VST A2219006702

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Fuse Box Mercedes W169 W245 SAM Body Control Module Unit ECU A1699010100

Part no. A1699010100-2

Fuse Box Mercedes W169 W245 SAM Body Control Module Unit ECU A1699010100

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Mercedes-Benz M ML W163 Rear Bumper Parktronic Wiring Loom Harness A1635402209

Part no. A1635402209

Mercedes-Benz M ML W163 Rear Bumper Parktronic Wiring Loom Harness A1635402209

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Mercedes Sprinter W906 Battery Alternator Starter Wiring Harness A9064401241

Part no. A9064401241

Mercedes Sprinter W906 Battery Alternator Starter Wiring Harness A9064401241

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Mercedes W213 OM654 Battery Cable Starter Alternator Wiring Harness A2385406926

Part no. A2385406926

Mercedes W213 OM654 Battery Cable Starter Alternator Wiring Harness A2385406926

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

Part no. A2038204002

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

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Radio CD Player Mercedes W176 W246 COMAND Nav Sat Head Unit A2469006710

Part no. A2469006710

Radio CD Player Mercedes W176 W246 COMAND Nav Sat Head Unit A2469006710

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Mercedes X117 CLA 250 270.920 4-Matic Engine Control Unit Module A2709002100

Part no. A2709002100-3

Mercedes X117 CLA 250 270.920 4-Matic Engine Control Unit Module A2709002100

Product currently unavailable

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Mercedes A E Class W168 W210 Module Control Unit Electric Fan ESG A0255453232

Part no. A0255453232

Mercedes A E Class W168 W210 Module Control Unit Electric Fan ESG A0255453232

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Mercedes W213 Multifunction Front Camera Control Unit A2139000323

Part no. A2139000323

Mercedes W213 Multifunction Front Camera Control Unit A2139000323

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Mercedes W212 E63 AMG Drive Unit Extended Control Module ECU A0009009903

Part no. A0009009903

Mercedes W212 E63 AMG Drive Unit Extended Control Module ECU A0009009903

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Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069005504

Part no. A9069005504

Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069005504

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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126

Part no. A1718205126

Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126

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Mercedes-Benz C-Class W203 Fuse Box Control Unit Module SAM A2035452901

Part no. A2035452901

Mercedes-Benz C-Class W203 Fuse Box Control Unit Module SAM A2035452901

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Fuse Box Mercedes ML W164 W251 OM642 Diesel Relay Module Unit A1645450201

Part no. A1645450201

Fuse Box Mercedes ML W164 W251 OM642 Diesel Relay Module Unit A1645450201

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Mercedes W221 Headlining Alarm Sensor Module Cover Trim Black A2219050018

Part no. A2219050018-1

Mercedes W221 Headlining Alarm Sensor Module Cover Trim Black A2219050018

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Mercedes-Benz C E Class W202 W210 ESP Yaw Rotation Rate Sensor A0015404517

Part no. A0015404517

Mercedes-Benz C E Class W202 W210 ESP Yaw Rotation Rate Sensor A0015404517

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Mercedes W168 W203 W211 W218 Relay Unit 5-Pin Yellow Hella A0025421219

Part no. A0025421219-1

Mercedes W168 W203 W211 W218 Relay Unit 5-Pin Yellow Hella A0025421219

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Mercedes W207 Telematic Communication Control Unit Module A1669005517

Part no. A1669005517

Mercedes W207 Telematic Communication Control Unit Module A1669005517

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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718205226

Part no. A1718205226

Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718205226

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Mercedes-Benz A B E M W169 W245 W210 W163 Relay 5-Pin Yellow Hella A0025427419

Part no. A0025427419

Mercedes-Benz A B E M W169 W245 W210 W163 Relay 5-Pin Yellow Hella A0025427419

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Mercedes-Benz A C W169 W204 Battery Negative Earth Cable Wiring A2045421418

Part no. A2045421418

Mercedes-Benz A C W169 W204 Battery Negative Earth Cable Wiring A2045421418

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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

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Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924

Part no. A2129006924

Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924

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Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824

Part no. A2129006824

Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824

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Mercedes W166 Headlight Lamp LED Control Module Left Right N/O/S A2189009203

Part no. A2189009203

Mercedes W166 Headlight Lamp LED Control Module Left Right N/O/S A2189009203

Product currently unavailable

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Mercedes W203 ECU Control Unit Crash Impact Sensor Module Airbag A2038700026

Part no. A2038700026

Mercedes W203 ECU Control Unit Crash Impact Sensor Module Airbag A2038700026

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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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Mercedes W907 Front Axle Brake Wear Indicator Loom Wiring Harness A9075402705

Part no. A9075402705

Mercedes W907 Front Axle Brake Wear Indicator Loom Wiring Harness A9075402705

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Starter Motor Mercedes W639 W906 Diesel Engine A0009062302 0986024530

Part no. A0009062302-1

Starter Motor Mercedes W639 W906 Diesel Engine A0009062302 0986024530

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Mercedes W204 W207 Air Suspension Module Regulation Control Unit A2049000607

Part no. A2049000607

Mercedes W204 W207 Air Suspension Module Regulation Control Unit A2049000607

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Battery Cover Mercedes C117 W176 W246 Frame Bracket Mount Holder A2465410105

Part no. A2465410105

Battery Cover Mercedes C117 W176 W246 Frame Bracket Mount Holder A2465410105

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Mercedes R171 W204 W212 Starter Motor Bosch M272 Engine Petrol A0061516001

Part no. A0061516001

Mercedes R171 W204 W212 Starter Motor Bosch M272 Engine Petrol A0061516001

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Mercedes W176 W246 Backup Battery Negative Minus Terminal Lead A2469069600

Part no. A2469069600

Mercedes W176 W246 Backup Battery Negative Minus Terminal Lead A2469069600

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Mercedes-Benz M-Class ML W163 Roof Towing Alarm Sensor Switch Module 16228382

Part no. 16228387

Mercedes-Benz M-Class ML W163 Roof Towing Alarm Sensor Switch Module 16228382

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Mercedes W176 A200 BlueEFFICIENCY 270.910 156HP Engine ECU Module A2709002100

Part no. A2709002100-7

Mercedes W176 A200 BlueEFFICIENCY 270.910 156HP Engine ECU Module A2709002100

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Mercedes W169 PDC Parking Distance Control Unit Module Rear A1695450632

Part no. A1695450632

Mercedes W169 PDC Parking Distance Control Unit Module Rear A1695450632

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Mercedes W204 Fuse Box Relay SAM Control Unit Module A2129005912

Part no. A2129005912

Mercedes W204 Fuse Box Relay SAM Control Unit Module A2129005912

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Door Module Mercedes W205 W213 C253 Control Unit Rear Right O/S A1679003718

Part no. A1679003718

Door Module Mercedes W205 W213 C253 Control Unit Rear Right O/S A1679003718

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Mercedes W204 Radio Stereo CD Player Audio Sat Nav Head Unit A2049069701

Part no. A2049069701-2

Mercedes W204 Radio Stereo CD Player Audio Sat Nav Head Unit A2049069701

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Mercedes W204 SAM Module Control Unit Electrical Fuse Box Unit A2129003825

Part no. A2129003825

Mercedes W204 SAM Module Control Unit Electrical Fuse Box Unit A2129003825

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Mercedes-Benz C CLK W203 W208 Lateral Acceleration Speed Sensor A1635420618

Part no. A1635420618

Mercedes-Benz C CLK W203 W208 Lateral Acceleration Speed Sensor A1635420618

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Ground Line Mercedes W221 Wiring Battery Starter Alternator Cable A2215409032

Part no. A2215409032

Ground Line Mercedes W221 Wiring Battery Starter Alternator Cable A2215409032

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Mercedes X156 GLE W166 Surround View Camera Control Unit Module A1569003303

Part no. A1569003303

Mercedes X156 GLE W166 Surround View Camera Control Unit Module A1569003303

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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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Mercedes-Benz Sprinter W906 Battery Tray Housing Box Case A9066200131

Part no. A9066200131

Mercedes-Benz Sprinter W906 Battery Tray Housing Box Case A9066200131

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Mercedes-Benz E-Class W210 Estate Radio Aerial Antenna Amplifier A2108200789

Part no. A2108200789

Mercedes-Benz E-Class W210 Estate Radio Aerial Antenna Amplifier A2108200789

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Mercedes W212 Fuse Box Relay Module Control Unit A2129002627

Part no. A2129002627

Mercedes W212 Fuse Box Relay Module Control Unit A2129002627

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Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105401930

Part no. A2105401930

Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105401930

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Mercedes-Benz W168 A 170 CDI OM668.942 Engine Control Module A6681530879 Manual

Part no. A6681530879

Mercedes-Benz W168 A 170 CDI OM668.942 Engine Control Module A6681530879 Manual

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Mercedes-Benz C-Class W203 M111 C 180 C 200 K Engine Starter Motor A0051515301

Part no. A0051515301

Mercedes-Benz C-Class W203 M111 C 180 C 200 K Engine Starter Motor A0051515301

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Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069000103

Part no. A9069000103

Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069000103

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Mercedes-Benz E S R Class W211 W221 W251 Replacement Fuse Kit A0005460373

Part no. A0005460373

Mercedes-Benz E S R Class W211 W221 W251 Replacement Fuse Kit A0005460373

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Mercedes W246 Air Module Control Unit ECU Module A2469000709

Part no. A2469000709

Mercedes W246 Air Module Control Unit ECU Module A2469000709

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Mercedes W211 Gearbox Module Transmission Control Unit A0355451532

Part no. A0355451532

Mercedes W211 Gearbox Module Transmission Control Unit A0355451532

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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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