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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BMW 3 5 Series E60 E90 Dashboard Onboard Monitor Display Screen 8.8 CCC 6957343
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Fuse Box Mercedes ML W164 W251 OM642 Diesel Relay Module Unit A1645450201
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Audi A4 B7 Aerial Antenna Amplifier Module 8H0035225R
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BMW X5 E53 3.0d M57N 218HP ECU Kit DDE + EWS3 + Key 7794626 Automatic Gearbox
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On Board Navigation BMW E60 E63 Display Monitor Screen 8,8" 6952328
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Audio Amplifier BMW F30 F31 LCI F32 Top Hifi Harman Kardon Control Unit 9393186
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9170454
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BMW X5 E53 3.0d M57N 218HP ECU Engine Control Unit DDE 7794626 Automatic
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BMW 3 Series E46 Cable Loom Door Rear Left Right N/O/S Wiring Harness 8378338
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Navigation System BMW X3 E83 Z4 E85 Mini R50 R52 DVD GPS Computer Unit
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Mercedes GLA X156 Tailgate Lift Boot Lid Control Unit Module A2469003615
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Mercedes W906 OM651.955 Diesel Engine Wiring Harness Loom Cable A6511502620
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Volkswagen Polo 6N Aerial Roof Antenna Base Antenna Unit 1J0035505A
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Renault Trafic Vauxhall Vivaro Relay 4-Pin Blue Unit 252301716R
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Mini Cooper R56 LCI R60 N16 Engine Control ECU DME 8600124 CAS3 Key Manual
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BMW 3 X3 X5 Z4 Series E46 E53 E83 E85 E86 Video Module High 6966615
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Mercedes V251 SAM Body Control Module Rear Unit A1649007000
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BMW E60 E60N E61N LCI M-Audio System Controller CD Player Navi 9186213
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Central Information Display BMW F20 F21 F22 F23 Screen 6,5" 9322122
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MINI Cooper R55 LCI Footwell Light Module Unit High EKS PL3 FRM3R 3456952
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BMW X3 F25 Light Module Control Footwell Lightning ECU Unit FRM3 9286157
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BMW 1 3 E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9216273
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BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9237047
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Mercedes W204 W207 W221 Parking Sensor Display Control PDC A0015424723
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Alternator Generator BMW F07 F10 F11 FN57N N57Z Diesel Engine Valeo 8570673
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Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 4E0955559C
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Mercedes W204 W207 W212 W221 Starter Motor A6429060900
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BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9383700
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530D
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Radio Head Unit Mercedes W207 W212 COMAND Navi CD Player Navigation A2189005607
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Radio Boost Mini R50 R53 Dolby Cassette Tape Player Control Unit Module 6918529
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BMW E93 LCI Footwell Light Control Unit Module Lear FRM3R PL2 9230450
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Volkswagen Polo 6C Starter Motor Actuator 1.4 TDI Diesel Engine 02Z911021C
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BMW E46 E60 E61 E65 E83 E53 M57N Starter Motor LRS01964BN
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Volkswagen Polo MK5 6R 1.2 TDI CFWA Engine Unit Module ECU 03P906021A
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Mercedes W176 PDC Parking Distance Sensor Module Control Unit ECU A2469008311
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Mercedes A238 Control Unit Module Amplifier Premium Sound A2139009020
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Mercedes Sprinter W906 OM646 Engine Diesel Alternator Generator A6461540002
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Mercedes V177 Seat Control Module CSMM Front Right O/S A2479005807
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BMW F40 F45 X1 F48 Mini F55 F56 Control Unit SAS Module ECU 9505275
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Audi S5 8T Quattro 4.2 FSI Petrol V8 CAUA Alternator Genarator Valeo 079903015F
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Mini Cooper R55 R56 R57 CCC CD Navigation Sat Nav Head Unit 9170730
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MINI Cooper One F55 F56 F57 Rear Antenna Aerial Amplifier DAB 9270034
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PDC Module Citroen C4 Berlingo Peugeot Parking Assist Control 0263004204
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Mercedes ML W166 Diesel OM642 Engine Automatic Transmission Wiring Harness
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BMW 3 5 Series E60 E90 330d 530d M57N2 ECU Engine Kit DDE 7801712 CAS2 + Key
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BMW 6 Series E63 E64 Front Central Bass Subwoofer Speaker HiFi 6929101
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BMW F30 335i F32 F33 435i N55 306HP Engine Control Unit ECU 8639582 Automatic
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BMW 3 5 X3 Series E46 E60 E65 E83 5 M54 Petrol Engine Starter Motor 2354693
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BMW E90 E91 LCI N47N 320d ECU Kit Basic DDE Control Unit 8512047 + CAS3 + Key
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Mercedes W221 S500 Audio Amplifier Sound System Control Module A2218205289
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Audi A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181C
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Volkswagen VW Polo 9N Negative Battery Terminal Ground Cable Wiring 6Q0971235
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Mercedes C140 Seat Belt Module Control Unit ECU A1408202526
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Volkswagen VW Passat B7 Driver's Seat Control Unit Module ECU 3C8959760E
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BMW 5 7 X5 E34 E38 E39 E53 Petrol Engine Starter Motor 1729981
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BMW F20 F30 F32 120d 320d 420d N47N 184HP ECU Kit DDE 8517862 + Key + FEM Manual
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BMW E93 Convertible Cabrio Rear Bumper TV Aaerial 9152325
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Audi A3 8P Convertible Roof Control Module ECU 8P7959255
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Mercedes S204 Fuse Box Terminal Connection Unit A2045450369
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BMW E81 E82 E87 E88 E89 E90 E91 E92 Radio Professional CD 9187108
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BMW F10 F11 F12 Central Gateway Module ECU Control Unit Lear ZGW-02 High 9267514
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Mercedes W205 Petrol Engine Alternator Electrical Cable A2649001000
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BMW E60 E61 E90 E91 LCI Display Screen 8.8" Monitor Sat Nav 9211969
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Microphone Mercedes W447 W907 W910 Hands-free Interior Mic Unit A4478200035
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Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 6500CY
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Opel Insignia A 2.0 CDTI Diesel Engine Alternator Generator 14V 100A 13502583
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Ford Transit Airbag Module Air Bag Control Unit ECU 6C1T14B056
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BMW E46 Convertible Rollover Sensor Control Unit Module 8385223
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BMW E87 ECU Body Control Module L2 JBBFE PL2 61359131779 9131779
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BMW 3 Series E90 E92 Antenna Amplifier Diversity TV Function 868 MHZ 6928936
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Mercedes W211 Multimedia Wiring Loom Electrical Harness Cable A2115409910
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BMW 5 X3 X5 Series E53 E60 E61 E83 PDC Parking Sensor Ultrasonic Schwarz Black
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Mini Cooper R55 R56 N12 1.6 120HP ECU Kit DME + CAS3 + Key 7600020 Automatic
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Peugeot 5008 2.0 HDI DW10C Diesel Engine Control Unit ECU 9667082380
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7812502 + CAS3 + Key Automatic
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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 .