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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Audi A6 C6 Multi Use Relay Unit Module 4 Pins 373 8D0951253A
PLN 42.95
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Ford Transit MK6 2.4 TDDi Diesel Engine Control Unit ECU Manual 6C11-12A650-AK
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Ford Transit Mk7 Engine Alternator Generator Unit Diesel AC1T10300BB
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Door Cable Mercedes W212 Wiring Loom Front Right O/S Driver Side A2124401251
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Mercedes-Benz A-Class W176 CLA C117 Rear View Camera Control Module Unit ECU
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BMW E60 E61 Driver's Side Door Air Module Control Unit Module 6976157
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Seat module BMW G11 G20 G30 G01 G02 Seat Control Unit Module ECU 9891562
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Porsche Cayenne 92A Front Side Door Crash Sensor Left Right N/O/S 7P0959354
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BMW Mini Cooper S R56 Automatic Gearbox ECU Control Unit EGS Module 7579136
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Mini Cooper One R56 High PL3 SPEG H5 DC/DC Fuse Distribution Box 3455528
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VW Golf Mk5 1K Body Control Comfort Unit Module Convenience Unit 1K0959433AK
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BMW E60 E61 E63 E64 M-ASK M-Audio System Controller Navigation Radio 6942638
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Mercedes W907 Positive Battery Terminal Cover Cap Trim Red A9069820109
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Audi A4 B8 2.0 TDI CAGA Diesel Engine Starter Motor Bosch Unit 03L911021C
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Sound Speaker BMW F30 F31 F32 F33 HiFi System Mid-range Unit 9264944
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Front Apron BMW F30 F31 F32 Front Bumper PDC Wiring Cable Loom Set 9283653
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Wiring Bracket BMW E60 E61 X3 E83 Diesel Engine Harness Cable Loom Mount 7799470
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BMW F10 LCI Light Control Footwell Module ECU Unit FRM3 9345374
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Ford Mondeo Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-AA SET X2
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BMW 3 5 X5 Series E39 E46 E53 3.0i M54 Generator Alternator 120A VALEO 7501593
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Audi Q3 8U Air Module ECU Sensor Control Unit 8U0959655D
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MINI S R52 R53 W11 Engine Control Unit Module ECU DME 7553735 Manual
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BMW X1 E84 ECU Body Control Module M PL2RR JBBFE IIIR Junction Box 9305739
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Ford Focus Diesel Engine Alternator Generator Engine Unit 8V21-10300-AB
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Starter Motor Audi Q3 8U Volkswagen Passat B7 Engine Starter Actuator 02E911024C
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Radio BMW E81 E87 E90 E91 E92 LCI CD Professional DAB 9246503
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BMW F20 F22 F30 Rear Electronic Module REM Fuse Box Control Unit V5 ECU 6809053
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BMW 5 E60 Light Control Module Unit Lear LME6X MAN LWR LCM Delphi 6941592
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Audi A4 B8 Loudspeaker Front Door Left Right N/O/S Bang&Olufsen 8T0035415B
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Ford Transit MK7 2.2 TDCi Diesel Glow Plug Wiring Loom Cable BK2Q6M091AE
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Audi A3 8V Control Unit PDC Parking Sensor Daytona Grey - Z7S 5WA919297B
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Mercedes-Benz A-Class W176 Mikrophone Roof Control Module A2468200035
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Mercedes W176 Radio Control Function Button Knob Controller Unit A2469009802
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Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit 2KW 7788680
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Mercedes W176 Front Pressure Impact Crash Sensor Module With Hose A1769051600
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Mercedes Vito W639 Cover Fuse Box Battery Trim Panel Lid A6395450003
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Mercedes W204 Battery Fuse Box Positive Distribution Terminal A2075401550
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Seat Ibiza 6J Relay Black Control Unit 7 Pin 12V 3U0941597A
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BMW E60 E61 E63 E64 E65 E66 Air Recirculation Control Sensor AUC
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Mercedes Universal TYCO Relay Module 12V V23134-B52-X309 A0025422319
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Mercedes ML W166 GLE C292 Relay Current Power Limiter Fuse Box A1669067701
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VW Volkswagen New Beetle Fan Control Module Relay 1J0919506K
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BMW E60 E63 E64 LCI Body module ECU 61356943062 6943062
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Mercedes Vito W639 Earth Cable Battery Terminal Wiring A6395400431
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Mercedes Vito W639 Door Front Left N/S Control Unit Module ECU A6398201026
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BMW 3 4 Series F30 F31 F32 Rear Bumper PDC Cables Wiring Loom Set 9315897
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BMW 1 Series E81 NSW ECU Light Module Footwell Module PL2 FRM II 9175650
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Wiring Harness Mercedes W176 A45 AMG Petrol M133 Low Temperature Pump Adapter
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Mercedes W207 Connection Media Interface Cable AUX Wire A0018276604
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Mercedes ML164 Alternator Wiring Starter Motor Harness OM642 A1645400436
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Engine Wiring Harness Mercedes W203 W211 M271 Loom Wiring Cable A2711502433
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Audi A4 B8 AV10NEO Display Screen Radio Multimedia Navigation Sat 8T0919603A
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Audi A8L 4H Tailgate Lift Boot Lid Control Unit Module Trunk 3AA962243
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BMW X3 E83 2.0d M47N2 Diesel Engine Control Unit ECU DDE 7796571 Manual
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Seat Module BMW E60 E61 E65 E66 Front Left Right N/O/S Control Unit ECU 6927315
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Fuse Box Audi A3 8P Volkswagen Golf Mk5 Cover Trim Panel Housing 1K0937125C
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Alternator BMW X3 E53 X5 E83 M57N2 Generator Diesel Power 150A 7797661
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BMW 1 3 X1 Z4 Series E81 E84 E87 E88 E89 E90 E91 E92 Radio Business CD 6975015
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Mini Cooper D F55 F56 B37 116HP Diesel ECU Engine Unit DDE 8587952 Manual
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Mercedes W166 Front Door Module Left N/S Control Unit ECU A1669005012
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BMW E65 E66 CD Audio System Controller Player 9130764
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Mercedes-Benz C CLK E S Class W210 Changer Player A0028207989
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Mercedes ML W163 Module SAM Electronics Control Unit A1635457032
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Mercedes GLE C292 Coupe Parking PDC Sensor Display Device Unit A0005427700
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Radio Boost CD Mini R50 R52 R53 Head Unit Audio Player 4154934
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Mercedes W221 Seat Control Module Front Right O/S A2218707493
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BMW X1 Series E84 Rear Bumper PDC Cables Wiring Loom Set 9230404
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BMW 1 3 5 Series F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module
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BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9394669
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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 .