Automotive electrical systems
More informationAt 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-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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Audi TT Mk2 8J 2.0 TFSI BWA 200HP Engine ECU Kit Ignition + Key 8J0907115N
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Mercedes W212 Control Unit Module Bracket Holder Mount A2125452640
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Audi A4 B7 Air Module Control Unit ECU Impact Sensor 8H0959655G
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Ford Transit Mk7 6000cd Radio CD Player Head Unit 8C1T18C815AC
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Mercedes W205 Petrol Engine Alternator Electrical Cable A2649001000
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 CAS 3 + Key Manual
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Renault Trafic III Opel Vivaro B Air Module Control Unit ECU 93868139 985101902R
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Alternator Generator Mercedes W211 W220 R230 M112 Bosch 150A A0121541302
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MINI Countryman R60 Control Unit Fuse Distribution Box SPEG High 9811672
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BMW 1 3 F20 F21 F30 F31 Parking Assistant PDC Control Unit Module 6851822
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SAM Module Mercedes SLK R172 Rear Fuse Relay Signal Actuation Module
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Mercedes W164 Fuse Box Holder A1645402972
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VW Volkswagen LT 35 Glow Plug Module Relay Control Unit Black 2D0911253
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Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav High Control Module 9365764
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Audi RS6 C7 Acceleration Yaw Rate Sensor Module Control Unit ECU 4G0907637L
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Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489
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Engine Wiring BMW F20 F30 N47S1 EU5 Loom Module Harness Cable 8507915
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Mercedes W211 Rain Light Sensor Control Unit Wiring Loom Cable A2115409605
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BMW F07 GT F10 F11 535d F13 640d LCI N57Z 313HP Engine ECU DDE 8586536 Automatic
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BMW X5 F20 F21 F30 E70 LCI Trunk Lid Reversing Camera Rear 9240351
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Mercedes W204 C220CDI BlueEFFICIENCY OM651.911 Engine ECU Kit A6519007500 Key
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BMW E81 E87 E90 E91 Hands Free Electronics Charging MULF2 9162982
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Mercedes W205 Park Assist PDC Trunk Control Unit Module A0009001808
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BMW E82 E90 E91 E92 N54 135i 335i Alternator Generator 180A 7558220
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BMW 3 5 6 Series E60 E63 R50 R52 Relay Make Contact Orange 8366646
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ECU Kit BMW F20 F21 114d Diesel N47N 95HP DDE 8573260 + Key + FEM + Lock Manual
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Fuel Pump Module VW Volkswagen Sharan 7N Fuel Sender Control Unit ECU 7N0906093
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Mini Cooper R56 Footwell Light Module High EKS PL3 FRM3R 3457402
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BMW Mini Cooper One R50 R53 R55 R56 R57 Input Cylinder Clutch Control 6758825
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BMW X3 Z4 E83 E85 CID Control Unit CD Player Radio Audio System 9197131
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Mercedes W203 C209 Yaw Sensor ESP Rotation Rate Control Unit Module A0035429818
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Nissan Qashqai 1.5 dCi Diesel Engine Wiring Loom Harness 24011BB04A
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Air Module Sensor BMW Z4 E64 E85 B Pillar Right O/S 6962888
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Peugeot Boxer Citroen Relay 4H03 TMF 130HP Engine Control Module ECU 9691854880
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BMW E60 E90 E92 335i 535i N54 306HP Petrol Engine Control Unit ECU DME 7573863
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Mercedes Vito W447 Battery Cable Diesel OM651 Alternator Wiring A4475406353
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BMW X5 E70 X6 E71 Module Control Unit Trunk LidRear Tailgate Lift 7317419
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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Generator 8200404459
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Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069005504
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Mercedes W205 Ignition Control Unit A2139001223
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BMW E81 E87 E90 E91 LCI E92 E93 Autoradio CD Radio Business 9229241
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Volkswagen VW Golf V 1.6 TDI Diesel Engine Starter Motor 022911024K
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Mercedes Citan W415 109 CDI Fuse Box Module Unit 284B63788R
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BMW F20 F21 F30 LCI Sound Speaker Mid Range Stereo HiFi 9264943
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BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 6957109
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Mercedes-Benz S-Class W220 Battery Lead Cable Positive Pole A2205400030
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Roof Antenna Mini Cooper R57 Convertible Cabrio Aerial Base 9149080
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BMW E60 E90 E91 N52 325i 525i 218HP Engine Control Unit ECU DME 7553166 Manual
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Audi A1 8X Air Module Control Sensor SRS System ECU Unit 8XA959655A
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BMW E60 X3 E83 E87 E90 Unit Glow Plug Module Diesel M47N2 7786821
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Control Unit Module BMW F20 F21 F30 F31 F32 Rear Body REM 6819332
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BMW F10 M5 F12 M6 Engine Wiring Harness Valvetronic Servomotor Cyl.1-4 7843335
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Mercedes ML W164 W251 SAM Module Control Unit ECU A1649004600
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BMW F45 i8 Mini F60 B38 B38X Hybrid Engine Alternator Generator 7649390
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BMW G20 320d B47D 190HP Engine Control Unit Module ECU Kit DDE 8475468 Key BDC
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Renault Trafic Scenic 1.9 DCI Diesel Starter Motor Valeo 8200628419
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Mercedes R231 Seat Control Unit Module Driver A2319003606
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Mini Cooper R50 R52 W10 116HP Engine ECU Kit DME 7557395 + EWS + Key Manual
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Mercedes W124 M103 Alternator Generator BOSCH 14V 70A A0131541002
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BMW 1 3 Series E87 E90 E92 Front Seat Adjustment Switch Left N/S 6954129
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Mercedes W169 W245 M266.920 95HP Engine Control ECU Kit A2661539779 Manual
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PDC Display Mercedes W204 W207 W212 Parking Sensor Control Screen A2045420523
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Airbag Module Mercedes W207 C207 Coupe Air Bag SRS Control Unit ECU A2079014200
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BMW E90 E91 E92 E93 325i N53 218HP ECU Kit Control Unit DME 7576719 Automatic
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Audi A5 8T Body Control Comfort Unit Convenience Module BCM1 ECU 4H0907063DB
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BMW E93 Xenon Footwell Light Module Control Unit ECU PL2 FRM II 9204526
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Mercedes W168 ESP + HBA Electronic Stability Program Control Module A1685453532
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Mercedes W210 Petrol M112 Automatic Transmission Control Module A0245458432
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BMW E60 E61 E81 E87 LCI E90 E91 E92 E93 Alternator Petrol 180A 7550469
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Mercedes SLK R171 Fuse Box Rear SAM Relay Control Unit Module A1715451901
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Mercedes-Benz E-Class W210 Estate Radio Aerial Antenna Amplifier A2108200789
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Mercedes GLC X253 220d OM651.921 170HP Engine Unit ECU Kit A6519006401 Automatic
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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2219013000
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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.
- Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
- Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
- Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
- Starters – Key components of the starting system that enable the engine to be started.
- Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
- Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
- Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
- Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
- 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:
| Symptom | Possible cause | Item to check |
|---|---|---|
| Difficulty starting the engine | Worn out starter or battery | Starter motor, battery |
| Dimming the lights | Inefficient alternator | Alternator, voltage regulator |
| Electric windows not working | Damaged relays or harness | Relays, 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
- Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
- Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
- Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
- 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
| Question | Answer |
|---|---|
| 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 .