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 F10 Central Gateway Module Control Unit Lear ZGW-02 MID Plus 9267516
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Saab 9-3 1.9 Ttid Z19DTR Diesel Engine Alternator Generator 93169260
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BMW X5 Series E70 Footwell Light Control Module Unit LEAR FRM3R VDM 6801294
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Mercedes W202 W208 Anti Theft Alarm Module Control Unit ECU A2028207426
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CD Changer BMW X5 E53 Z4 E85 6 Disc Control Unit Module With Magazine 6946990
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Mercedes S204 Rear Trunk SAM Central Electric Base Control Module A2049065602
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Ford Transit Mk7 Negative Battery Terminal Sensor Unit BK2T14301AC
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VW Volkswagen Polo 6R Negative Battery Terminal Cable Wiring 6R0971537F
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Volkswagen Polo 6R Fuse Box Module Comfort BCM Body Control Unit ECU 6R0937087P
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Mercedes W213 S213 Multimedia USB SD Card Reader Port Socket Module A2058200526
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Hyundai H-1 2.5 CRDI Alternator Generator 373004A310
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Ford Mondeo Mk4 Rear Bumper Parking Sensor Wiring Harness 6G9T-15K868-AJ
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Speed Sensor Mercedes Sprinter W906 Impuls Control Unit Module A0155429317
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Head Unit BMW F30 F31 F32 X3 F25 Navigation Sat Nav Basic Media Player 9350332
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BMW E91 LCI ECU LED NSW Light Module Control Unit PL2 FRM II 9204532
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Mercedes W164 W169 W211 W245 Disc CD Changer A2118706189
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Citroen Berlingo Peugeot Partner Battery Terminal Earth Cable Wiring 9676811780
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Mercedes W177 W205 W238 W257 Gearbox Control Unit Module ECU A0009005517
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BMW F20 F21 F30 F31 118d 318d N47N Engine Control Unit ECU DDE 8579479 Manual
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Alternator Mini Cooper R55 R56 R57 R57 R58 Generator Petrol 7575650
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Audi A3 8V Negative Battery Cable Terminal Clamp Wire 5Q0915181C
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Volkswagen VW Golf Mk6 Alternator Cable Wiring Harness Loom 1K0971349AQ
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Audi Q3 8U Amplifier BOSE Premium Audio Sound System Module 8X0035223D
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BMW E90 E91 LCI Wiring Cable Harness Gearbox Transmission Module 8507810
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BMW F20 F21 F22 F30 F31 F32 Control Unit Airbag Ecu 9296494
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BMW 3 X5 Series E46 E53 3.0d Diesel M57 Alternator Generator 150A 2248296
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BMW 5 6 Series E60 E61 E63 Airbag ECU Control Unit Centre Vehicle Sensor
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Peugeot 207 1.6 HDI Diesel Engine Starter Motor Engine Unit 9646679980
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BMW E60 E61 LCI 550i N62N 367HP Engine Unit Module ECU DME 7577664 Manual
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BMW E87 LCI E90 N43 118i 318i Petrol ECU Kit 7595179 DME CAS3 + 2 Keys Automat
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Volkswagen Touareg Yaw ESP Rate Sensor Module Unit Control ECU 7H0907652
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Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 8E0959651B
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BMW 5 F10 F11 Battery Cable Wiring Harnes Lead Positive Underfloor 9150990
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BMW X3 Series E83 LCI Diesel Battery Positive Lead Red Cable Plus Pole 3452235
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Audi A8 4E S8 D3 Comfort Unit Control Module 4E0907289E
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BMW F07 F10 F11 F12 Diesel N57 Engine Wiring Injection Wiring Harness 8583575
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Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069003502
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BMW X3 G01 X4 G02 Wireless Charger Centre Console Phone Module Unit 8719905
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Front Seat Module BMW E60 E61 E65 E66 Control Unit ECU 6924879
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Fuse Relay Renault Laguna Master Vauxhall Vivaro 4-Pin Fuse Unit 8200308271
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Head Unit Mercedes GLA X156 Radio Media Player Navigation Switch A2469000816
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Audi Q7 4L A1 8X Negative Battery Cable Lead Monitoring Module 8K0915181D
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Airbag Module Citroen Berlingo Peugeot Partner Air Bag Control Unit 9803916880
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Audi Q3 8U Tailgate Lift Boot Lid Control Unit Module Trunk 8U0959107A
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BMW X5 E53 3.0i M54 1,4KW Starter Motor 7501738
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BMW F21 Door Wiring Front Passenger Door Loom Cables Harness F22 9340997
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Ford Transit Connect Mk2 Alternator Generator 165A 1.5 Diesel JX6T-10300-KB
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Mercedes W205 W213 C253 Fuse Box Front Relay Control Unit Module A2059065806
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Audi A6 C7 Gateway Interface Electrical Control Unit Module ECU 4G5907468K
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BMW X4 F98 G02 Active Sound Design Module Control Unit Harman Kardon 9835622
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Vauxhall Opel Combo Positive Battery Cable Lead Wire Cabling 51919499
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Mercedes W168 Alternator Generator A0121544502
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Mercedes S212 Roof Antenna Estate Shark Trim Obsidian Black - 197 A2128270028
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BMW F40 X1 F48 Mini Countryman F60 Engine Starter Motor 12V 8686185
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MINI Cooper R53 W11 170HP Engine ECU Kit DME 7527610 EWS Key Manual
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IBS Cable BMW E60 Negative Battery Lead Wiring Harness Control Unit 9115488
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BMW E90 E91 E92 Professional CCC Navigation System Controller 9159041
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BMW 3 5 7 X3 Series E46 E60 E65 E83 M54 Alternator Generator 7541694 155A BOSCH
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Ford Mondeo MK3 2.0 TDDi Diesel Engine Starter Motor 2S7T-11000-DC
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Mercedes SLK R171 Petrol M271 Fuse Box SAM Relay Control Module A2129007324
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BMW F10 F11 F01 LCI Central Gateway Module ECU Control Unit LEAR ZGW-02 9291449
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BMW G20 320d B47D 190HP Engine Control Unit Module ECU Kit DDE 8475468 Key BDC
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BMW E81 E82 E87 E88 E89 E90 E91 E92 Radio Professional CD 9177199
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BMW X3 E83 Z4 E85 CID Control Unit CD Player Radio Audio System 9166376
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Air Module Unit BMW F10 F11 F30 F31 F25 F12 F13 X3 F25 ECU Control 9319493
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Audi A4 B8 Saloon Trunk Lid Tail Light Lamp Wiring Rear Right O/S 8K5945094AA
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BMW F07 GT Light Control Footwell Module Unit ECU FRM III 9236459
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Audi A4 B9 8W Q5 FY Audio External Connector AUX USB Port 8W0035708
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Audi A3 8P Multimedia Stereo Sat Nav CD Player Radio Head Unit 8P0057186SX
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BMW E65 E66 Battery Cable Positive Plus Pole 6904905
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Mercedes W203 W209 Fuse Box Rear SAM Module Relay Control Unit A2035453801
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BMW 3 5 X3 X5 Series E39 E46 E53 E83 Control Unit Control Unit EWS IV 9145349
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BMW 3 5 7 X3 X5 Z4 Series E38 E39 E46 E53 E85 E83 Control Unit EWS III
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Ford Focus Mk3 BCM Body Control Module Fuse Box Electrical Unit DV6T-14A073-HJ
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Mercedes W164 W212 Alarm Sensor Warning Buzzer Module Unit A1648220230
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BMW X3 F25 30dX Diesel N57N 258HP Engine Module ECU DDE 8577839 Automatic
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BMW E82 Coupe ECU Body Control Module Junction Box L1 PL2 JBBFE II 9177978
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Mercedes-Benz W169 W245 CD Player Radio Audio Head Unit A1698204789
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BMW F01 F02 F03 F10 F11 F20 F21 F30 F31 Bluetooth Module Combox Media 9257150
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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 .