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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Ford Fiesta MK7 1.6 TDCI Diesel Engine Control Unit ECU 8V2112A650KE Manual
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Audi Q7 4L Diagnostic Interface Gateway Control Module Unit ECU 4F0907468N
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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000300
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Audi A4 B8 Rear Door Module Control Unit ECU Left N/S 8K0959795A
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Battery Cable BMW F45 Mini F54 F56 B48 Alternator Starter Wiring 8602973
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Mini Cooper One R55 R56 N12 DME 7573701 Petrol Engine Control Unit ECU Manual
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Mercedes W211 Body Control Module BCM Comfort Module Unit A2115453532
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BMW E46 Inclination Indicator Alarm Tilt Sensor Control Module 8386932
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Alternator Generator Mercedes W164 OM642 180A Electrical Unit Diesel A6421540502
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BMW E87 E90 E91 E92 E93 Fuse Box Power Distribution Front 6906621
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Ford Transit Connect 1.8 TDCi Engine Control ECU Module Manual AT1112A650BD
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Audi A3 8P Battery Box Tray Housing Holder Bracket Cover Mount 1K0915333H
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BMW Mini Cooper One D R55 R56 Engine Starter Motor Diesel Valeo 7805098
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Fuse Box Mercedes GLE W166 C292 W463 Relay Control Unit Module A1669068201
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Radio CD Player Mercedes W211 CLS C219 COMAND Navigation Head Unit A2118204497
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BMW X5 E53 X3 E83 Control Unit Xenon Adaptive Headlight Ballast 6939069
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Starter Mercedes W204 W212 W906 Diesel OM651 Starter Motor Bosch A6519062800
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BMW E81 E87 LCI 130i N52N 258HP Engine ECU Kit DME 7581123 + CAS3 + Key Manual
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Volkswagen Tiguan 5N Air Module Control Unit ECU Module 5N0959655A
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BMW Z4 E85 2.2i 2.5i 3.0i M54 Wiring Loom Harness Engine Module 7532036
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BMW Z4 E89 20i N20 184HP Petrol Engine ECU Kit CAS3 + Keys 8661466 Automatic
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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module A6394460332
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Audi A4 B7 Door Harness Loom Cable Wiring Rear Left Right N/O/S 8E0971687L
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BMW E60 E61 E63 E64 Parking Control Module Unit PDC 9185139
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Mercedes ML W164 SLK R171 W211 C219 CD Changer 6 Disc Player Unit A2118705390
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BMW 3 X5 Series E46 E53 M54 Automatic Gearbox Basic Control Unit EGS 7508145
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Mini R50 R52 R53 Radio Boost CD Player Unit Head 6941509
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BMW E60 E90 LCI 325i 525i N53 218HP Engine Control Unit ECU DME 7578020 Manual
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Battery Cable VW Polo 6R Audi A1 8X Starter Alternator Wiring 6C0971349MD
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BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9292948
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CAS4 Module BMW F01 F10 F11 Key Reading Control Unit 9257036
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Alternator Generator Mercedes W176 W246 OM651 Diesel Engine 175A A0009063322
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Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640
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ESP Sensor Mercedes W164 W221 Yaw Rotation Rate Sensor A0055422018
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Mercedes ML W164 Transfer Case Box Module Control Unit ECU A1645408662
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Relay Box Mercedes ML W166 Engine Compartment Relay Module A1669063801
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Mercedes W221 Audio Sound Speakers Amplifier Control Unit ECU A2219008103
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BMW X3 X5 Z4 E39 E46 E53 E83 E85 GPS Navigation Computer DVD 6920182
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Volkswagen Seat Skoda Audi 2.0 TDI Diesel Engine Starter Motor Valeo 02E911024H
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Audi A7 4G8 ESP Yaw Rate Module Control Unit Sensor ECU 4G0907637H
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Seat Wiring BMW X3 F25 X4 F26 Cable Loom Harness Passenger's Side 9316662
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BMW E90 Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
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Mercedes W204 W212 C218 Sound Audio Amplifier Harman Becker A2128700194
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Mini Cooper F56 Wiring Driver's Loom Front Right O/S Door Cables 9338910
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Mini Cooper R56 LCI ECU Footwell Light Module FRM3R LOW EKS Lear 3456394
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MINI Cooper R53 W11 170HP Engine ECU Kit DME 7527610 EWS Key Manual
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Radio CD Player Mercedes W176 W246 COMAND Nav Sat Head Unit A2469006710
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BMW 1 3 Z4 Series F20 F30 E89 Petrol Alternator 170A 7605478
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BMW 3 X3 Series E46 E83 Fuse Distribution Box 8364530
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BMW E81 Footwell ECU Light Control Module MAX Kuester FRM3R 6827065
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Audi A4 B8 3.2 FSI Alternator Generator 06E903016N
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Front Fuse Box Mercedes W204 C207 Relay Control Unit SAM Module A2129000206
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BMW 4 Series F33 F83 M4 Convertible Top Module CTM Unit 9371386
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Mercedes W204 W207 C218 W212 E220 Navigation 20 Control Module Unit A2079005400
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Starter BMW F10 F07GT F13 F03 X5 E70 Petrol N63 Starter Motor 1.6 KW 7556131
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Parking Module Audi A4 B8 A5 8T PDC Sensor Control Unit 8K0919475R
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Audi Q3 8U PDC Parking Assistance Control Module Unit ECU 8X0919475M
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BMW F10 Control Unit Box F07 F11 Engine Ventilation Housing Box 7555176
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BMW F22 F32 F36 Body Control Comfort Module Unit 8707676
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BMW E91 Antenna Amplifier Diversity Module 9193841 6934846
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Mercedes W176 180 CDI OM607.951 Blue Efficiency ECU Kit A6079002300 Key Lock
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AUDI Q7 4L Lane Assist Module Blind Spot 4L0907566A
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Mini Cooper R56 Engine N12 1.6 120HP Petrol ECU Kit DME 7640004 CAS3 + 2 Keys
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BMW E63 E64 Seat Occupancy Sensor Mat Passenger Side Control Unit Module 6982976
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BMW 3 5 7 Series E34 E36 E38 E39 Relay Control Module Unit White 1729004
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Audi A5 8T A4 B8 2.0 TFSI Engine Alternator Generator 06H903017T
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Mercedes Sprinter W906 Fuse Box Relay Module Control Unit A9065454401
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BMW E81 E87 E90 E91 LCI 118d 318d N47 Diesel ECU KIT DDE 8506375 CAS3 + 2 Keys
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PDC Module Mercedes W177 Parktronic Parking Assist Control Module A0009008129
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Ford Transit Mk8 Starter Motor Engine Actuator Diesel 2.2 TDCi CC1T-11000-BB
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BMW X1 Series E84 20i N20 184HP ECU Engine Kit DME 8610678 CAS3 + Key Manual
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BMW F20 118d F30 318d 143HP N47N Engine ECU Kit DDE 8576341 + Key + FEM Manual
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BMW 5 6 Series E60 E61 E63 E64 Power Steering Speed Sensor 6774039
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Control Unit A2129068800
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Cover BMW F13 F12 F11 Engine Control Unit ECU Box Top Cover Shield 7555178
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Mercedes Vito W447 Rain Light Sensor Windscreen Control Unit A4479052505
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Audi TT FV Front Camera Module Lane Assist Control Unit 5Q0980653G
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Audi A3 8V MMI Multimedia CD Player Head Unit Infotainment 8V0035020H
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Battery Cable VW Golf 8 Audi A3 8Y Starter Alternator Wiring Harness 5WA971230CM
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BMW Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6935645
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SAAB 9-3 1.9 TTiD ECU DDE Engine Control Unit Module 55568896
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Mini Cooper One R56 High SPEG Fuse Distribution Box H1 3450824
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BMW 5 Series E61 Body Gateway Module KGM LOW LEAR 9133144
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Seat module BMW G11 G20 G30 G01 G02 Seat Control Unit Module ECU 9891562
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Audi A3 8V 2.0 TDI CRLB Diesel Alternator 03F903023D
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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BMW E88 ECU Footwell Light Module Control Unit PL2 FRM II Lear 9197161
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BDC Module Mini Cooper F56 Body Domain Controller Unit Fuse Relay Module 8796101
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BMW E46 E53 E83 EWS 3 III ECU Immobiliser Ignition Control Unit Module 6905667
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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 .