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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Head Unit BMW F07 GT Car Infotainment Computer Sat Nav Multimedia DAB 9275510
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Land Rover Range Sport L320 Diesel Engine Alternator Generator AH22-10300-AB
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Mini Cooper One R57 Footwell Light Module High EKS ECU PL3 FRM3R 3456987
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Renault Master III Radio CD Player Bluetooth Head Unit USB MP3 281156951R
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Mini F56 Active Sound Design Radio Audio Amplifer Control Unit Module 8799259
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Mini R56 LCI R60 Radio MINI CD Player Head Unit Controller 3456363
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MINI Cooper D One R50 Alternator Generator 7790879
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BMW X5 E53 Support Bracket Navigation Computer 8385987
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Porsche Boxster 986 Air Module Control Unit Controller ECU 99661821900
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Audi A5 8T A4 B8 8K 2.0 TFSI CDNC 211HP Engine ECU Kit 8K2907115P Key + Ignition
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Mercedes W205 Alternator 14V/200A Valeo Diesel Engine M626 A0009063701
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BMW X3 G01 Led Light Daytime Running Module Control Unit ECU Right O/S 7466108
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Audi A8 D4 Reader Radio CD System Audio MMI Multimedia Head Unit 4H0035670T
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BMW F10 F11 520d Diesel N47N 184HP Engine ECU Control Unit DDE 8510137 Automatic
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BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Wiring Loom Module Harness Cable 7848265
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BMW 3 X3 X5 Series E46 E53 E83 Navigation System Video Module Unit
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Audi A3 8P Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655A
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BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9258164
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Mercedes W221 S500 4-Matic M273.968 Engine Control Unit ECU Kit A2731536591 Key
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BMW X3 X5 E53 E60 E61 E83 PDC Parking Sensor Ultrasonic Schwarz Black 6989069
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Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D
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Volkswagen Polo 6R Engine Wiring Loom Harness 03E971612AD
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BMW Z4 Series E85 Battery Lead Positive Cable Plus Pole 6935667
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BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Unit DDE 7811151 Manual
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Mercedes W212 OM651 Diesel Engine Wiring Harness Loom Cable A6511503633
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Volkswagen LT 2.5 Touareg 3.0 TDI Diesel Engine Starter Motor 069911023MX
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BMW Z4 E89 LED Footwell Control Module ECU 9286885
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BCM Module BMW F20 F21 F30 F31 F32 Body Control Unit Module REM V2 9329701
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VW Volkswagen Transporter T5 Comfort Convenience Body Module BCM 7H0937049T
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Distance Radar Module Mercedes GLE W166 C292 Control Unit A0009059906
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Mini Cooper One R50 R53 Radio Boost CD Player Unit Head 6921965
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VW Volkswagen Golf 1K Mk5 Window Lifter Motor Module Front Right O/S 1K0959792G
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Audi A8L 4H Tailgate Lift Boot Lid Control Unit Module Trunk 4H0959107AB
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Ford Transit Connect Earth Ground Cable Battery Lead Wiring Loom FV6T14324BFA
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Light Module BMW F11 Control Footwell Lightning ECU Unit FRM3 9251975
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Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0009001900
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Audi A3 8P 1.6 MPI Petrol Starter Motor Engine 02T911023M
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Audi A6 C6 Body Control Comfort Unit Module BCM Unit ECU 4F0907289G
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Starter Motor BMW F90 M5 G11 G30 Petrol Engine Starter Actuator DENSO 8657337
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BMW Mini Cooper R56 Footwell Light Module High EKS ECU LEAR PL3 FRM3R 3457428
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Mercedes W906 W907 Cut Off Electric Relay Module Wiring Cable A0025424019
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Mercedes W205 C350e Hybrid Electric Drive Battery High Voltage Wiring Harness
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Airbag Module Mercedes W207 C207 Coupe Air Bag SRS Control Unit ECU A2079014200
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Mini Cooper R57 Cabrio Convertible Wiring Loom Harness Rear Trunk Lid 9144846
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BMW 3 5 7 X5 Series E38 E39 E46 E53 Rain Light Sensor Windscreen Wiper 6904012
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BMW E60 E61 E90 E91 E92 N52 325i 525i Engine Control Unit ECU DME 7577968 Manual
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BMW 5 6 SERIES E60 E60N E61 E61N E63 B terminal point engine compartment 6923945
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Mercedes-Benz C M Class W163 W203 ESP Yaw Rotation Rate Sensor A0025428918
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VW Polo 6R Seat Ibiza Mk4 Starter Motor Bosch 1.2 Petrol CGPB 02T911023R
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BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9315684
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BMW X3 3 Series E46 E83 LCI 1 Start Point Housing Bracket Base B 8385157
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Toyota RAV4 Diesel Starter Motor Engine Actuator DENSO 28100-64300-84
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Mercedes Citan W415 109 CDI OM607.951 Engine Control Unit ECU 237104376R Manual
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Audi A7 4G Seat Cable Front Left Right N/O/S Wiring Loom Harness 4G8971365
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BMW Z4 Series E89 Front Bumper PDC Loom Cables Wiring Set 9225771
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BMW F01 Front Bumper PDC Wiring Loom Cable Harness F02 9221713 9221712
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Door Module Mercedes W213 C238 Front Left N/S Control Unit ECU A2139002022
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Volkswagen Golf 1K Door Wiring Harness Loom Cable Front Drivers Side 1K0971120CH
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Mercedes W203 ECU Control Unit Crash Impact Sensor Module Airbag A2038700026
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Mercedes W211 E220 CDI 646.821 170HP Engine Unit ECU Kit A6461503272 Key Lock
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BMW E87 E90 118i 318i N46 129HP Engine Control ECU DME Kit 7565300 Automatic
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Injection Wiring BMW F90 M5 F91 M8 S63M Cyl. 5-8 Loom Valve Ignition 7856775
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Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049005112
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059003729
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BMW X5 E70 Light Module Footwell Control Unit ECU FRM II MAX Lear 9242522
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BMW E60 E90 X5 E70 3.0sd 335d 535d M57N2 Engine ECU KIT DDE 7810980 CAS3 + Key
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Mercedes W163 CL203 W203 Petrol Alternator Generator Valeo 120A A0111546402
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Mercedes W204 W212 W251 Starter Motor 642872 Diesel Engine Starter A0061519801
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Mercedes Sprinter W906 Battery Alternator Starter Wiring Harness A9064401241
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Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A A0009067900
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Mini F56 B38 1.5 136HP Petrol Engine ECU Module DME 8655106 Manual
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BMW Mini Cooper One R56 Footwell Light Module LOW ECU PL3 FRM II 3450938
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Engine Control Unit BMW F20 F30 F31 118d 318d N47N 143HP ECU DDE 8582280 Manual
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BMW X5 X6 E70 E71 CCC CD Professional Navigation System Controller 9159047
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BMW F10 F11 Cable Harness Door Driver's Side Right O/S Wiring 9237082
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Audi A5 8T CD Player Radio Multimedia MMI Head Unit ECU 8T2035666D
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BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6939712
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Audi A3 8P 1.6 TDI 105HP CAYC Diesel Engine ECU Kit 03L906023M 2 Keys Manual
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BMW 1 3 Series E81 E87 E90 E91 E92 E93 Parking Control Module Unit PDC 6973117
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Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
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Mercedes W906 311 CDI 109HP OM646.985 Diesel Engine Control Unit ECU A6461506372
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Part no. A1719000100
Radio Head Unit Mercedes SLK R171 CD Player Control Unit Module A1719000100
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Part no. 7553166-5
BMW E60 E90 E91 N52 325i 525i 218HP Engine Control Unit ECU DME 7553166 Manual
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Alternator Mercedes W212 S212 Diesel OM651 Alternator 220A Valeo A0009063705
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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 .