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 X3 F25 Light Module Control Footwell Lightning ECU Unit FRM3 9286157
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Radio Professional BMW E81 E87 E90 E91 LCI Autoradio CD Bluetooth 9289115
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Mercedes C253 Windscreen Camera Control Unit Module A2479002516
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Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902
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Audi Q7 4L Audio Amplifier Sound System Unit Module ECU 4L0910223H
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BMW X3 E83 1.8d 2.0d N47 Engine Wiring Loom Harness Cables Set 3453809
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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Generator 8200404459
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 9173686
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BMW Z4 E85 Roadster 2.5i N52 177HP ECU Kit DME 7571510 EWS + Key Manual
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BMW F10 F20 F30 F32 Fuel Pump Control Module Unit 7426095
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Amplifier BMW F30 F31 F32 Top Hifi Audio Sound Amplifier Harman Kardon 9366164
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BMW E60 E61 Front Right Door O/S Wiring Cables Harness 9175863
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Mini Cooper F55 F56 Dual Clutch Transmission Gearbox Control Unit Module 8486547
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Wiring Loom BMW X3 G01 X4 G02 B57 Harnes Diesel Engine Automatic Gearbox 8588547
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BMW X3 F25 N47N Diesel Engine Wiring Loom Harness Cable 8513414
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Ford Transit Mk7 Relay 5-Pin Black Unit FoMoCo 6G9T14B192DA
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Ford Transit MK7 Battery Holder Bracket Mount Strap Clamp 6C1T10A721AB
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Audi A4 B8 Door Wiring Harness Loom Front Left N/S Cabling 8K0971030M
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Land Rover Range Rover L322 3.0d M57 306D1 Gearbox Control Unit Module TGB000091
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Mini One D R55 R56 LCI N47N 90HP Diesel Engine ECU Kit DDE 8516739 CAS 3 Key
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Mercedes W211 Door Module Front Left N/S Driver Control Unit ECU A2118208185
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BMW E93 Convertible Rear Bumper PDC Cables Wiring Loom Set 9133625
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Land Rover Range Rover Sport L320 Air Suspension Valve Block Module RVH000055
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Ford Transit MK7 Positive Battery Management System Unit Module CC1T-10C652-AC
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BMW 5 6 Series E60 E61 E63 M-ASK M-Audio System Controller CD Player 6965046
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BMW E60 E61 E65 E66 Seat Control Module Ecu Sensor 6927275
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Part no. A6519005301
£Mercedes W212 E220CDI OM651 Diesel Engine Control Unit Module ECU A6519005301
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Mercedes W212 Light Sensor Sunlight Sensor Front A2518206510
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Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9147387
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BMW X3 X5 E53 E83 PDC Parking Distance Control Unit Active Module 911942
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Mercedes-Benz W203 W210 Sprinter W906 Glow Plug Relay A6461536579
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Body Control Unit BMW F01 F10 F11 F12 Module ZGW-01 High Central Gateway 9213187
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Wiring Loom BMW F01 F07 F10 F11 Cable Seat Driver's Side Set 9219987
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Audi A6 C7 Front Door Control Module Unit ECU Driver's Side 4G8959793E
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Audi A4 B8 Door Module Front Drive Side Control Unit ECU 8K0959793E
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Camera Module BMW F10 F20 F12 F87 Reversing Camera Rear View Control 6994555
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Audi S4 B8 Alarm Siren Body Sound Impact Actuator Speaker 4H0907601A
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Mercedes C E Class W203 W211 Bluetooth Control Unit Module ECU A2118702726
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Air Module Mercedes ML W166 Interior Safety SRS Control Module A1669001311
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BMW E81 E87 LCI E90 118d 318d N47 143HP Diesel ECU KIT DDE 7810001 CAS3 + Key
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Mini Cooper One R56 High SPEG Fuse Distribution Box SPEG High 3448964
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Mercedes W203 W209 W639 CD 6 Disc Changer With Magazine A2038703389
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Mercedes ML W164 Fuse Box Relay Control Unit Module A1645403272
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BMW X5 E53 Radio Stereo Screen Multi Functional Display Head 6914606
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Unit DDE 7823973 Manual
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Mercedes Sprinter W906 Engine Wiring Loom Harness Cable CDI Diesel A6515460161
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BMW X5 E53 3.0i M54 231HP ECU Kit DME 7519308 Manual + EWS3 + Key
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BMW F30 LCI 330e G11 740e G30 530e Hybrid B48X Engine Starter Motor 8643641
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Headlight Ballast BMW E60 E61 E90 E91 Xenon Adaptive Control Module 6941634
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Audi S6 C6 Steering Wheel Multifunction Wiring Loom 4F0971589A
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Alternator BMW X3 E53 X5 E83 M57N2 Generator Diesel Power 150A 7797661
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Mercedes GLC X253 Rear Bumper Wiring Loom PDC Harness Parking Sensor A2535402605
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Audi S4 B8 3.0 TFSI CGWC 333HP Quattro Engine Control Module ECU Kit 8K5907551B
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Mercedes W245 B200 CDI OM640.941 140HP Engine ECU Kit A6401508334 Key
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Mercedes W205 X253 Wiring Cable Harness Center Console A2054403008
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Battery Box Bracket Mercedes W205 W213 W238 Trim Holder Right O/S A2056200018
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Audi A4 B7 4.2 FSI V8 Petrol Engine Alternator Generator 079903018X
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Mercedes C253 Fuel Pump Module Control Unit ECU A0009002218
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Part no. 8586536-1
BMW F30 F32 LCI 335dX 435dX N57Z 313HP Control Unit ECU Kit DDE 8586536 FEM Key
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Alternator BMW M3 E46 Z3M E36 Petrol S54 Generator Valeo 120A 7831436 7830791
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Part no. 9198302
BMW F10 F11 F20 F21 F30 F31 130A Electric Fan Motor Relay 9198302
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Part no. A0009062700-1
Mercedes W639 W906 W907 OM642 Diesel Engine Alternator Generator A0009062700
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Chrysler Grand Voyager Automatic Gearbox Control Module Unit ECU P04727535AC
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Volkswagen Golf VI Passat B6 Tiguan Starter Motor Diesel Engine 02M911024Q
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BMW E46 E60 E61 E65 E83 E53 M57N Engine Starter Motor 63223537
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BMW E60 E87 E90 Telematics Bluetooth Control Unit Module 9231093
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Yaw Sensor Audi A4 B8 A5 8T ESP Rotation Rate Unit Module 8K0907637D
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BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS 6970685
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Volkswagen Touareg 7L Alternator Mounting Bracket Carrier Holder 070903143C
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BMW E60 E61 E63 E64 Power Distribution Fuse Relay Box Rear 6906588
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Audi A1 8X Multimedia Radio CD Player Navigation Head Unit 8X0035183F
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BMW X5 X6 E70 E71 Rear Differential Control Module Unit QMV 7595847
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BMW E81 E87 E90 E91 LCI Professional CD Radio With Bluetooth 9243922
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Audi A8L 4H Front Door Control Module Left N/S Unit ECU 4H0959792G
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Audi A5 F5 45 TFSI DKNA Body Control Module BCM Unit ECU 8W0907063DG
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Audi A6 C7 Front Lamp Headlight Control Module Unit ECU Controller 4H4907357E
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Gearbox Cable BMW F45 F46 F39 B48 Automatic Transmission Wiring Harness 8642585
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BMW F30 F32 LCI N57N N57Z Diesel Engine Alternator Generator 230A Valeo 8570675
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BMW F10 F11 X5 E70 Alternator Generator Unit Valeo 230A Diesel Engine 7807187
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Mercedes Vito W639 OM646.982 109HP Engine Module ECU Unit A6461503278 Manual
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Part no. 03C903023F
Volkswagen New Beetle 1.4 TSI Petrol Engine Alternator Motor 14V 110A 03C903023F
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Starter Motor Mercedes W203 W209 W211 W906 Engine Diesel A0051516601
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Mercedes W203 Kompressor M271 Positive Battery Cable A2035400330
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Part no. 6989082-TS
BMW X3 E60 E83 Front PDC Parking Distance Sensor Titansilber Silver 6989082
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Part no. 8634124-1
BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124
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Audi A4 B7 2.0 TDI Starter Motor Engine Diesel 03G911023A
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Part no. 8652746-1
Mini Cooper S R60 ALL4 N18 1.6 184HP ECU Kit DME + CAS3 + Key 8652746 Manual
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Part no. 6956586
BMW 1 Series E87 Footwell Light Module ECU Control Unit NSW PL2 FRMFA 6956586
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Part no. 4542789
Mini Cooper One R50 R52 R53 W10 1.6 Petrol Engine Starter Motor 4542789
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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 .