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 5 6 Series E60 E63 E64 Body Control Module ECU Control Unit 6957140
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BMW 1 Series e81 BODY CONTROL MODULE L2 61356968836 6968836
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BMW Mini Cooper One R50 DME Petrol Engine Control Unit ECU Automatic 7514587
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Audi S8 D3 Petrol BSM 5.2 FSI Fuel Pump Control Module 4E0906093B
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BMW Z4 E85 Petrol M54 Wiring Loom Harness Engine Gearbox Manual 7524109
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Mercedes W168 Alternator Generator A0121544502
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BMW E46 Radio Business Cassette Player Audio Control Head Unit 8383149
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Module Mercedes C205 Front Door Right O/S Control Module Unit A2229001614
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BMW F01 F10 F11 F12 Body Control Unit Module Gateway ZGW-01 9247398
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BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9315094
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Audi TT 8J 2.0 TDI 170HP CBBB Quattro Engine Module Unit ECU 03L906022DH Manual
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Dashboard Monitor BMW F30 F31 Display Central Information Screen 6,5" 9270393
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Mercedes W221 Front Door Module Right O/S Control Unit ECU A2219007601
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Audi A4 B7 4.2 FSI V8 Petrol Engine Alternator Generator 079903018X
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Mini Paceman R61 Footwell Light Module High EKS ECU PL3 FRM3R 3457528
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Mercedes CL203 Head Unit CD Player Radio Audio Controller Unit A2039000000
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BMW E90 ECU Body Control Module H1 PL2 JBBFE2 9177981
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Mini Cooper One R56 Footwell Light Module High EKS ECU PL3 FRM II 3452677
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BMW E90 Light Control Module ECU Unit PL2 FRMFA Lear 9128183
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Radar Unit Mercedes W176 W205 W246 GLC C253 Front Bumper Sensor A0009058104
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Citroen Relay Peugeot Boxer Fiat Ducato Fuse Box Control Unit 1367661080
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Audi A4 B8 2.0 TDI CAGA Diesel Engine Starter Motor Bosch Unit 03L911021C
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Mercedes C238 E53 Coupe Window Lifter Comfort Module Unit Rear A2389000401
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Seat Leon Mk2 1P Interior Headliner Ultrasonic Motion Alarm Sensor 1P0951171
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Audi Q7 4L Engine Starter Motor Actuator Starter 079911021D
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MINI Clubman R55 LCI Instruments Cover Trim Panel Dashboard Dash 9239915
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Mercedes W176 Starter Motor 12V Bosch M270 Petrol Engine A2709060700
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BMW F40 F45 Mini F55 F56 Front Suspension Strut Protective Cap Cable VDC 6876863
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Audi A4 B9 Camera Control Module Unit ECU 8W0907428C
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Audi A4 B8 A5 8T Radio Media Player Audio CD Head Unit Player Concert 8T2035186C
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BMW E87 E90 F20 F30 Engine Starter Motor Actuator N47 N47N Diesel 8570238
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Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P
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Mercedes C209 CLK220 CDI 646.966 Engine ECU Kit A6461505091 Keys Lock Automatic
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Volkswagen Golf Mk5 V Body Control Comfort Unit Module 1K0959433AJ
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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module A6394460332
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BMW X3 E83 2.0i N46 150HP Engine ECU DME 7561834 Manual
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Audi Q7 4L Front Seat Memory Control Module Unit ECU Left Right N/O/S 4F0959760D
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Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824
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BMW E90 LCI Professional CD Radio Player 9246500
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Seat Module Mercedes W176 W246 Control Unit Front Left Right N/O/S A2468200526
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Audi S5 8T Gateway Control Unit Module ECU 8T0907468P
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BMW F20 F21 F22 Body Control Module Unit FEM 8707679
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BMW 3 E91 ECU Body Control Module M Junction Box PL2RR JBBFE IIIR 9329800
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Audi A1 8X 1.4 TSI CAXA 122HP Engine Control Unit ECU Kit 03C906016BG BCM + Key
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BMW E60 E61 E63 E64 Body Gateway Module KGM LOW
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Audi A6 C7 Front Seat Control Module Unit Right O/S 4G8959760
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Mini Cooper R56 Footwell Light Module High EKS ECU PL3 FRM3R 3456051
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Audi A3 8P Air Module ECU Sensor Control Unit 8P0959655L
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BMW F87 LCI M2 370HP N55 Engine Control Module Unit ECU DME 8693361 Automatic
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Head Unit BMW F20 F21 F22 F30 F31 LCI Sat Nav Radio Media Navigation 8708257
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Wiring Mercedes W176 W242 W246 C117 Petrol M270 Engine Harness Loom A2701501533
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BMW 7 Series E65 E66 E67 Sensor B-Pillar Airbag Right O/S 6970894
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Audi Q7 4M Alternator Mass Cable Wiring Harness Loom 4M0971228CH
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Mercedes C205 Fuse Box Relay Control Unit Module A0035421819
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Renault Trafic II Vauxhall Vivaro A 2.0 DCI Alternator Generator 8200404459D
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BMW E90 E91 E92 330d M57N2 231HP Engine ECU KIT DDE 7809944 CAS + Key Automatic
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MINI Cooper One R56 PL3 SPEG H5 Fuse Distribution Box 3455440
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Gateway Control Unit Mercedes W204 W212 Gateway Module ECU VST A2129001227
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Seat Ateca Door Module Control Unit Front Passenger's Side Door 5Q4959592K
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BMW X3 E83 LCI Battery Positive Lead Red Cable Plus Pole Wire 3414878
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Volkswagen VW New Beetle 1.9 TDI BSW Engine Unit ECU Kit 038906019NN Key Manual
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Mercedes C118 W177 W247 Battery Box Trim Housing Cover Support A1776204201
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BMW X3 E83N E70 LCI E71 PDC Parking Ultrasonic Sensor Schwarz 7687127
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Audi S5 8T Air Module Control Unit SRS System ECU 8K0959655B
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BMW E90 Max Brose Footwell Light Module Control Unit ECU 9340339
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Mercedes W203 Fuse Box Rear SAM Module Relay Control Unit A2035450701
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BMW E60 M-Audio System Controller Navigation Head Unit 6948351
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BMW 3 Series E90 LCI Footwell Light Control Module LCM LED Basis 9230448
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BMW E60 LCI E90 325d 525d M57N2 ECU Kit Basic Control Unit DDE 8506951 CAS3 Key
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Mercedes W212 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2128205313
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Alternator Ford Transit MK2 Sierra Scorpio 2.0 Engine Generator 1406067
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ECU Module Mercedes W169 W211 W245 Yaw Rate Sensor Unit ESP A0045429118
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Module Mercedes W177 W247 Instrument Cluster Control Module A2479001608
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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 .