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 VW Volkswagen Seat Relay Unit Module 9 Pins 12V UH2 4B0955531A
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MINI Cooper R50 R52 W10 1.6 Petrol Engine Control Unit ECU DME 7557395 Automatic
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BMW X1 E84 2.0dX N47 177HP Engine ECU Kit DDE 8510591 CAS3 + Key Automatic
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Mercedes W176 W246 USB Interface Multimedia Adapter Connector A1728201700
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Mercedes W203 C180 Kompressor M271.946 Engine ECU A2711532291 Automatic
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BMW F20 F21 F30 F31 Fuel Pump Delivery Control Unit Module 7450992
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Engine Wiring Mercedes W204 OM651 Diesel Harness Loom Cable A6511500156
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Door Module Mercedes CL203 W203 Front Left N/S Control Unit A2038201385
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Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698206926
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BMW E60 E61 E90 E91 E92 N52 325i 525i Engine Control Unit ECU DME 7577968 Manual
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Mercedes W203 Gearbox Transmission Control A0325451232
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Mercedes W212 E350 CDI OM642.850 Engine Control Unit Module ECU A6429002900
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Mercedes W211 Rain And Light Sensor Control Unit Module ECU A2118206026
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Mercedes Vito W639 Positive Battery Terminal Cover Cap Trim Red A6395450191
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Audi A6 C5 Yaw Sensor ESP Rotation Rate Control Unit Module 8E0907637A
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Mercedes W204 W212 C218 Sound Audio Amplifier Harman Becker A2128700194
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BMW X3 F25 20dX 190HP B47 Engine Control Unit Module ECU DDE 8588946 Automatic
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BMW 1 Series E87 ECU Body Control Module H2 Junction Box PL2 JBBFE II 9187539
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BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 8SK 9380333
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BMW F25 F26 Head Unit Basis Media Navigation System Controller DAB 6821164
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Gateway Module Mercedes W211 Control Unit ECU A2115408545
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BMW F01 F07 F10 F11 F12 F25 CAS4 Module Control Unit Key Reading 6809374
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Land Rover Range Rover L322 3.0d M57 306D1 Gearbox Control Unit Module TGB000091
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Land Rover Range Rover Engine L322 3.0d M57 306D1 Unit Module ECU DDE 7791367
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MINI Cooper R50 R52 1.6i W10 116HP Engine ECU Control Unit DME 7539808 Manual
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BMW X3 Series E83 Wiring Passenger Side Loom Front Door Cables 3427751
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BMW E84 ECU Body Control Module Junction Box PL2RR JBBFE IIIR 9267421
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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 6809049
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BMW E91 NSW PL2 FRMII Lightning Control Unit Module (LCM) 9159811
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BMW 1 2 Series F20 F21 F22 LCI Battery Cable Lead Positive Underfloor 9348761
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Navigation System BMW X3 E83 Z4 E85 Mini R50 R52 DVD GPS Computer Unit
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Alternator Generator Mercedes R171 W209 M272 Petrol Engine 150A A2721540002
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Gateway Module BMW F10 F11 Central Module Control Unit Lear ZGW-02 ECU 9267515
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Renault Trafic Scenic Diesel Starter Motor Mitsubishi 233003248R
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PDC Module Mercedes W176 W246 Parking Assist Distance Control Unit A0009003210
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Starter Motor Ford Transit Connect 1.8 TDCI Diesel Engine Actuator 2T1411000CC
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BMW 4 Series F32 F82 F83 M4 KaFAS Camera Assist Speed Limit Control 9384686
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BMW E60 Light Control Unit Module LM E6X MAN.LWR Lear 9112631
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Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0005458916
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Airbag Module BMW F10 F12 F13 X3 F25 ECU Control Unit Air Bag 6837358
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BMW F30 F32 LCI 335dX 435dX N57Z 313HP Control Unit ECU Kit DDE 8586536 FEM Key
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Mercedes W176 W205 Exhaust Control Valve Flap Actuator Module Unit A0325456926
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Mercedes W447 Door Module Front Left Control Unit A4479007906
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Mercedes W203 W209 Relay Unit Module 2 Pins White Hella A0005461366
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Alternator BMW E53 E83 M57N2 Generator Diesel Engine Power 150A 7797661
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Mercedes W203 C200 Kompressor M271.940 163HP Engine ECU A2711534691 Automatic
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BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9269020
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Mercedes W164 Gateway Control Unit Gateway Module ECU A1645402601
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Audi A4 B7 2.0 TDI Battery Cable Wiring Harness 8EO971824E
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Audi A4 B7 2.0 TDI Starter Motor Engine Diesel 03G911023A
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Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter NAPA A6519062300
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BMW F20 F21 F22 F30 F31 F32 Mini F55 F56 F57 Head Unit Basic Media DAB 8794297
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BMW F10 F11 Radio Player Alpine Audio CD Champ 2 Head Unit 9272002
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Mercedes W176 180 CDI OM607.951 Blue Efficiency ECU Kit A6079002300 Key Lock
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Mercedes W204 Navigation Radio Player Head Unit Hazard Seat Switch A2049009907
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Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800
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BMW 1 Series E88 ECU Body Control Module H3 Junction Box PL2RR 9247474
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BMW X5 E53 3.0d M57N 218HP ECU Engine Control Unit DDE 7794626 Automatic
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Audi A4 B8 Door Wiring Harness Loom Front Cabling 8K0971029M
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Audi A4 B7 Door Wiring Harness Loom Front Cabling 8E1971029AA
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Audi A4 B7 Door Harness Loom Cable Wiring Rear 8E1971687L
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BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238
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BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238
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BMW E60 E81 E87 E90 E91 X3 E83 Relay Changer Make Contact Salmon Red Set 1742690
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BMW E60 E81 E87 E90 E91 X3 E83 Relay Changer Make Contact Salmon Red Set 1742690
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Alternator Generator Mercedes W176 W246 OM651 Diesel Engine 175A A0009063322
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Mercedes Vito W639 Parking Module PDC Distance Control Unit Sensor A6399003300
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Mercedes ML W164 Parking Module PDC Distance Control Unit Sensor A1645453716
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Mercedes W176 W245 Front Left N/S Door Wiring Loom Harness A2465403805
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Mercedes W176 W245 Front Right Door Wiring Loom Harness A2465403005
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Peugeot 3008 Head-Up Display Hud Project Dash Screen Control Unit 96665877ZD
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Speed Sensor Mercedes Sprinter W906 Impuls Control Unit Module A0155429317
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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 .