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 W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803
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Audi A6 C6 Alternator Main Cable Wiring Harness Loom 8K0971228AJ
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BMW X1 E84 2.0dX N47 177HP Engine ECU Kit DDE 8510591 CAS3 + Key Automatic
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Audi S1 8X Front Lamp Headlight DRL Ballast Control Module Unit 4G0907397R
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Volkswagen VW LT 35 Diesel Engine Starter Motor Unit Napa 069911023LX
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Audi TT 8N Headlight Module Ballast Relay Control Unit 4B0919471A
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Audi A6 C6 4F Control Unit Air Module ECU Bosch 4F0959655G
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Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0009001900
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BMW F10 F11 530d N57 245HP Engine Control ECU Kit Module DDE 8510643 CAS4 Key
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Mini Cooper R55 R56 N12 DME Petrol Engine Control Unit ECU 7600020 Automatic
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Mercedes A-Class W168 Door Cable Harness Wiring Front Passenger A1685405008
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Engine Sound Generator Mercedes W177 W213 GLC C253 Front Rear Unit A2239016902
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Mini Countryman R60 Fuse Distribution Box SPEG High DC/DC H7 9809382
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Mercedes Sprinter W906 OM646 Diesel Engine Wiring Harness Loom Cable A6461504233
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MINI Cooper R50 R52 W10 1.6 Petrol Engine Control Unit ECU DME 7557395 Automatic
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Mercedes-Benz C CLK W203 C209 Sam Control Module Fuse Box Rear A2035453201
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BMW 1 3 5 Series E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147216
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VW Golf 6 2.0 TDI Diesel CBD Engine Control Unit ECU Manual 03L906022LF
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Renault Trafic 3 Vauxhall Vivaro B Airbag Module Air Bag Unit ECU 985106142R
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BMW E53 PDC Parking Control Module Unit PDC 6916407 66216916407
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Air Module Mercedes W639 W906 Control Unit ECU A9064461142
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Renault Master III DCI Alternator Support Bracket Mount 117103585R
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Audi Q3 8U PDC Assistance Parking Distance Control Module Unit ECU 8X0919475N
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Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035462
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Mercedes ML W164 Cable Loom Wiring Parking Sensors Rear Bumper A1645402405
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Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100
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Renault Traifc Vauxhall Vivaro Alternator Bracket Mount Holder 117109477R
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Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU A6421501500 Automatic
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BMW 1 3 Series E87 E90 120i 320i N46 ECU Kit DME CAS2 2 Keys 7545042 Manual
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Starter Generator BMW i3 I01 Hybrid 60Ah 94Ah 120Ah Rex Petrol Engine 7625712
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BMW 3 5 7 Series E30 E34 E36 E38 E46 Petrol Engine Starter Motor 2354709
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BMW X1 E84 18dX Diesel N47N 143HP Engine Control Unit ECU DDE 8519005 Manual
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BMW X3 F25 X4 F26 Integrated Supply Module 8645515
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BMW 3 E91 ECU Body Control Module Junction Box M PL2RR JBBFE IIIR 9264577
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BMW 1 Series E87 LCI ECU Body Control Module Unit H2 PL2RR JBBFE IIIR 9227184
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Audi A6 C7 Gateway Convenience Module Unit Body Control ECU 4H0907064FN
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Audi A1 8X Bluetooth Interface CarPlay MMI Retrofit Multimedia Unit Set MMI2G
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BMW E60 Seat Control Unit Module Left Right N/O/S Temic 6927270
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BMW 3 X3 Series E46 E83 Engine Electronics Complete Control Unit Box 7534921
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BMW 5 X3 X5 Series E53 E60 E61 E83 PDC Parking Sensor Ultrasonic Schwarz Black
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BMW 5 E60 E61 Front Door Wiring Loom Harness Passenger Side 9175879
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Mercedes Sprinter W906 Air SRS Bag Control Module Unit 0285010033 A9064460742
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BMW E87 E90 N45 116i 316i 116HP Petrol ECU Kit DME 7557809 + CAS 2 + Key Manual
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Hyundai H-1 2.5 D4CB Engine Starter Motor 361004A000
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BMW F20 M135i N55 326HP Engine Control Unit ECU DME 8626762 Automatic
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Mini Cooper R56 SPEG PL3 M2 SPEG Fuse Distribution Box 3453736
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Renault Trafic F83 M9R 2.0 DCI Engine Control Unit Module ECU 8200935115 Manual
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Radar Sensor Mercedes W204 C117 Rear Blind Spot Right left N/O/S A0009053303
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Hands Free BMW E81 E87 LCI E90 Electronics Charging MULF2 9207361
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MINI One D R50 W17 1ND Engine Wiring Loom Harness Module 7790365
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VW Golf MK6 Body Control Comfort Unit Module BCM 1K0937085
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Volkswagen Fox 5Z Air Module Control Unit ECU Module 1C0909605K
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Audi Q2 GA Front Parking Sensor Assist Control Module Arrow Grey Z7W 5Q0919275B
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BMW E60 Light Control Unit Module LEAR LM E6X LWR 6943283
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Ford Transit MK7 Positive Battery Management System Unit Module CC1T-10C652-AC
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Mercedes ML W163 SRS Control Module Sensor Unit Temic A1635422218
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GPS Module BMW E81 E87 E90 E91 LCI Combox Telematics Control Unit 9257162
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Audi A4 B8 Starter Alternator Wiring Loom Cable Harness 8K0971228F
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Mini Clubman R55 Footwell Light Module High EKS ECU PL3 FRM II 3452677
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Mini Cooper One R56 High SPEG DC/DC M3 Fuse Distribution Box 3451925
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Module Mercedes W177 W247 Instrument Cluster Control Module A2479001608
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BMW X5 E53 3.0i M54 1,4KW Starter Motor 7501738
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BMW E81 E87 LCI Front PDC Parking Distance Control Loom Wiring 9150889
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Mini F56 Interior Electrical Cable Excitement Package Wiring Harness 6809545
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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479005807
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Battery Cable BMW F45 Mini F54 F56 B48 Alternator Starter Wiring 8602973
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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 .