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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VW Volkswagen Touareg 7L Air Suspension Gateway Control Module Unit 7L0907553F
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BMW E60 520i M54 170HP Engine Control Unit ECU Kit DME 7541335 CAS2 Key Manual
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AUDI A8 4E S8 D3 CD Changer Control Module 6 CD unit 4E0057110C
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Mercedes W205 Door Wiring Harness Loom Cable Front Passenger Side A2055400010
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Mercedes A B W169 W245 M266 Petrol Engine Wiring Harness Loom A2661502933
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9147387
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Mercedes W203 Fuse Box Rear SAM Module Relay Control Unit A2035450701
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801
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Audi A4 B8 3.2 FSI Alternator Generator 06E903016S
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BMW Z4 E85 E86 Battery Holder Hold Down Bracket 7572873
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VW Golf Mk8 Seat Frame Wiring Front Left N/S Cable Loom Harness 5H2971391BD
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BMW F10 F11 On Board Screen Central Information Display Monitor 10,25" 9241826
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Smart Fortwo C453 Front Bumper Wiring Parking Sensor Loom Harness A4535408304
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Mercedes Vito W447 Fuse Relay Box Control Module A4475404326
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Ford B-Max Door Loom Wiring Harness Cable Driver Side Front AV1T-14A584-CDD
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Audi Q7 4L Automatic Transmission Gearbox Control Unit Module 09D927750HT
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Mercedes ML W163 Cover Footwell Fuse Box Trim Right A1636801080
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Porsche Cayenne 92A Wiring Loom Harness Cable 7P5971693F
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BMW 7 Series E65 E66 Sensor B-Pillar Airbag Right O/S 6929562
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Audi VW Golf MK5 Seat Skoda 1.9 TDI Alternator Mount Support Bracket 038903143AF
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BMW X1 E84 Headlight Lamp Light Front Cable Wire Plug Left N/S 2990003
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Mercedes-Benz CLK W208 Front Left Right Door Interior Handle Bowden Pull Cable
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Volkswagen Touareg 7L 3.0 TDI Diesel Engine Starter Motor 059911024J
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BMW F20 F30 F32 LCI 120i 320i 420i B48 184HP Engine Control Unit ECU DME 8740343
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BMW X5 E70 LCI 40dX N57S 306HP Engine ECU Kit DDE 7810980 CAS3 + Key Automatic
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Head Unit BMW F20 F21 F22 F30 F31 Radio CD Navigation GPS 6840399
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Mini Cooper R50 Engine W10 116HP Engine ECU Kit DME 7513983 EWS Key Automatic
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BMW X3 E83 Z4 E85 E86 Radio Business CD Player Audio Head Unit 6943437
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Battery Terminal Citroen Relay Peugeot Boxer Positive Fuse Box A878
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Alternator Generator Mercedes W176 W246 Diesel Engine Bosch 175A A0009063822
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VW Amarok Mk2 Negative Earth Battery Wiring Loom Cable Connector MB3T-14N143-MC
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Volkswagen Tiguan Skoda Octavia 5E Sun Light Solar Sensor Control Unit 3G0845109
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BMW E81 E87 LCI E90 N43 170HP Engine Control Module ECU Kit DME 7621178 Manual
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Volkswagen Passat B5 Audi A8 D3 A4 B6 Fuse Box Control Unit Module 8D1941824
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Mercedes C140 Body Control Comfort Unit Module BCM Unit ECU A0185458332
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Volkswagen Passat B7 Engine Starter Motor Actuator Starter 0AM911024A
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BMW E87 E90 X3 E83 Hands-free Electronics Charging Module ULF 9145007
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Audi A1 8X Multimedia Radio CD Player Navigation Head Unit 8X0035183
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Radio Head Unit Mercedes C207 W207 COMAND Navi CD Player Navigation A2129009004
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Mini Cooper R50 W10 116HP Petrol Engine Control Unit ECU DME 7527610 Automatic
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Audi A4 B8 Saloon Rear Lamp Tail Light Wiring Harness Plug Left N/S 8K0973706
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Land Rover Freelander 2 L359 Headlight Wiring Front Right O/S DH52-13W029-AB
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Land Rover Discovery L550 Rear Lamp Socket Plug Cable Left N/S FK72-13193-BK
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Audi A1 8X Front Door Loom Wiring Harness Cable Driver's Side O/S 8X0971035BE
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Chrysler Grand Voyager 2.8 CRD ENR Engine Water Inlet Hose Tube Line 5066883AB
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BMW E70 E71 Car Infotainment Multimedia Computer Head Unit 9221825
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BMW E70 E71 Seat Control Unit Module ECU 9196933
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MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970
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BMW 3 5 7 X3 Series E46 E60 E65 E83 M54 Alternator Generator 7541694 155A BOSCH
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Porsche Macan 95B Air Module Control Unit ECU 95B959655G
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BMW E46 Wing Mirror Memory Control Unit Module ECU 8386427
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Peugeot 3008 Wiring Loom Harness Cable 9665290180
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Ford Transit MK7 Body Control Unit Module BCM Fuse Box CC1T14A073BD
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Audi A3 8P Cable Door Harness Wiring Loom Passenger Front Left N/S 8P4971030K
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Land Rover Discovery 4 L319 Family Entertainment Controle Module BJ32-11E001-AD
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Audi A4 B9 Engine Starter Motor Actuator Starter 04L911021B
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Land Rover Range Rover L322 Air Module Control Unit AH42-14D374-AF
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VW Volkswagen Touareg 7P Rear Boot Lid Tailgate Control Module Unit 7P6959107C
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BMW E46 M43 Engine Wiring Loom Harness Ignition Module Cable 1437967
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ESP Module Mercedes W210 Electronic Stability Program Control Unit A0275455632
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Mercedes-Benz E-Class S211 W211 Rear Bottom Left Holder Bracket A2115460343
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Ford Mondeo Mk4 Steering Column Lock Control Unit Module 7G91-3F880-FC
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Mercedes W212 Engine Alternator Generator A0009062100
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Audi A5 8T Seat Module Control Unit ECU Front Left Right N/O/S 8T0959760
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Audi A4 B7 Window Antenna Amplifier Module 8E5035225D
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Mercedes R171 Seat Air Module Control Unit Front Left N/S A1718600105
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Starter Motor Ford Galaxy Mondeo S-Max TDCi Diesel Engine Starter 6G9N-11000-FA
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Land Rover Discovery 4 L319 L538 L405 TV Tuner Hybrid Module AW93-14F641-AE
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BMW F46 Gran Tourer Rear Taillight Wiring Harness Plug Right O/S 6984746
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Audi Q3 RSQ3 F3 Negative Cable Battery Terminal Wiring Loom 5QA915181D
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Audi A6 C7 Gateway Convenience Module Unit Body Control ECU 4H0907064FN
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Engine Wiring BMW F45 Harness Cable Supply Module Control Unit 8583683
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BMW E90 E91 E92 E93 LCI Diesel Alternator Generator 175A 150 14V 8507623
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Audi Q3 8U Q5 8R HELLA XCelerate Ultra AGM Start Stop Car Battery 80Ah 800A 12V
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VW Golf Mk5 Seat Well Cable Front Left N/S Wiring Loom Harness 1K0971391ES
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Mercedes ML W166 GLE C292 SAM Module Control Unit ECU A1669006120
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Audi A5 F5 Camera Control Module Unit ECU 4M0907428F
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Ford Transit Custom Mk1 Alternator Generator 150A 2.2 TDCi Diesel CC1T-10300-BE
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BMW E65 E66 Dashboard Control Display Screen 8,8" 6986301 9137123
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Mercedes W169 A150 M266.920 95HP Engine Control Unit ECU Kit A0034466040 2 Keys
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Audi A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335D
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Mercedes W204 W207 W212 Alternator Generator Engine Diesel 180A 14V A0009067702
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Part no. 7L0959933D
Porsche Cayenne 9PA Body Comfort Module Control Unit ECU 7L0959933D
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Part no. 6H22-10E921-BC
Land Rover Discovery 4 L319 Aerial Antenna Amplifier Module 6H22-10E921-BC
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Renault Trafic III Vauxhall Vivaro B Positive Battery Cable Lead Wire 240801846R
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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 .