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 A4 B6 B7 A1 8X 1.9 TDI 2.0 TDI Engine Alternator Generator 06F903023FX
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BMW F10 F11 Head Unit Basis Media Navigation System Controller Headunit 9226365
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Audi Seat Skoda Volkswagen Gateway Control Unit Module ECU 3Q0907530AA
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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9274021
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Mini F54 F55 F56 F60 Navigation Media Radio Sat Nav Head Unit 5A4F856
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Mini Cooper R56 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456987
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Central Gateway Module BMW F10 F11 F12 ECU Control Unit Lear ZGW-02 High 9284420
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BMW Mini Cooper R56 Footwell Light Module High EKS ECU LEAR PL3 FRM3R 3457428
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BMW Mini Cooper R57 R57N Cabrio Aerial Roof Antenna Base 9149080
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Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465408032
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Head Unit BMW F20 F21 F30 Radio Professional CD Player Control Module 9310455
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BMW X5 X6 Series E70 E71 Board Monitor Sat Nav System Screen 8,8" 9166782
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Mercedes W204 W212 Tyre Pressure Check Monitor Control Unit Module A0009003704
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Audi A4 B8 Radio Media Player Audio CD Head Unit Player Concert 8T2035186B
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BMW X5 E70 LCI Light Module Footwell Module FRM3R Lear ECU Unit 9249073
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Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035053B
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Opel Astra Vectra Zafira Immobilizer Antenna Immobilizer Module Unit 24445098
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Mini Cooper One R50 R52 R53 W10 1.6 Petrol Engine Starter Motor 7570488
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Engine Control Unit Peugeot Partner B9 Module ECU 9HN 1.6 Diesel 9807885980
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Ford Transit Custom Starter Motor Engine Actuator Diesel 2.2 TDCi CC1T-11000-DC
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BMW E60 E90 LCI 325i 525i N53 218HP Engine Control Unit ECU DME 7578020 Manual
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Mercedes C E Class W203 W211 Bluetooth Control Unit Module ECU A2118702726
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Volkswagen VW Phaeton 3D Battery Relay Protection Solenoid Module 3D0919433
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BMW F10 F11 520d Diesel N47N 184HP Engine ECU Kit DDE 8513242 CAS4 Key
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio CD Professional 65126957351 6957351
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Mercedes GLA X156 Comunication Module Telematic Bluetooth Control A2229001821
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BMW X3 F97 G01 X4 F98 Led Light Daytime Running Module Control Unit DRL 7466102
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Engine Wiring BMW E90 E91 LCI N47N Loom Harness Cable Automatic Gearbox 8510249
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Mercedes W212 Radio Head Unit Navi CD Player Control Unit A2129000217
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Mercedes W176 Steering Wheel Wiring Loom Harness 307873750AA
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BMW Z4 E85 2.5i Engine M54 192HP Engine ECU Kit EWS3 + 2 Keys 7527072 Manual
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Electronics Charging BMW E81 E87 E90 E91 Hands Free MULF2 9195246
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Mercedes W221 Steering Column Wheel Angle Sensor Control Unit A2215457832
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Audi A5 8T Head Unit Radio Player Navigation Control Module 4G0035061H
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BMW F45 F46 F55 F60 B37 B47 Engine Starter Motor 8581788
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BMW E81 E87 E90 LCI E92 Navigation System Car Computer CIC 9218330
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BMW E89 Light Led Module Footwell Unit Lear FRM3R PL2 9241006
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Mercedes W168 Battery Support Holder Front Mount Bracket A1686100336
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VW Golf VII 2.0 TFSI DJHA 310HP Quattro Engine Unit ECU Kit 06K907425B Automatic
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Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635400534
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Part no. 6976888-1
Head Unit BMW X3 E83 Z4 E85 E86 Radio Business CD Player 6976888
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BMW Z4 Series E85 Sensor B-Pillar Airbag Right O/S 6933988
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BMW X1 E84 E60 E61 E63 E64 Body Gateway Light Control Comfort Module 9390485
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Mini Cooper R55 R56 R60 CAS 3 ECU Control Unit Key Reading Module 9221719
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Audi A3 8V 2.0 TDI CRLB 150HP Engine ECU Kit Ignition + 2 Keys 04L907309A Manual
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CD Changer Mercedes W203 W209 W220 6 Disc Player With Magazine A2208274642
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Mini R56 R57 R58 Display Screen Instrument Cluster Speedo Android HC-8613
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Mini Cooper R60 Footwell Light Module Unit High EKS ECU PL3 FRM3R Lear 3456987
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VW Volkswagen Golf 6 Polo Radio Head Unit RNS 310 Media Player Unit 3C0035270
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Audi A3 8V 2.0 TDI DFGA Diesel Starter Motor 02E911022C
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BMW F20 F21 F30 F31 F32 Radio Professional CD DAB Head Unit 9299268
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Part no. 6976384
BMW X5 E70 Power Distribution Fuse Box Front Control Unit Module 6976384
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Air Module BMW F20 F21 F30 F31 F32 F36 ECU ICM Plus SRS Control Unit 6868255
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Part no. A1765405905
Mercedes W176 Center Console Wiring Loom Electrical Harness A1765405905
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Part no. 6905921
BMW 3 5 7 X5 E39 E46 E53 E65 GPS Receiver Control Unit Module Japan 6905921
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Seat Ibiza IV VW Touareg 7L Phaeton 3D Headlight Control Module Unit 7L6907357C
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CIC Professional Unit BMW F01 F10 Sat Nav Infotainment Radio Player Head 9274569
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Volkswagen Tiguan 5N Sat Navi Stereo Radio Audio Head Unit CD Player 2K0035279C
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Part no. 6R0971228S
Negative Battery Cable Audi A1 8X Volkswagen Polo Mk5 6R Cable 6R0971228S
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Rain Sensor Audi Q3 RSQ3 F3 Front Windscreen 81A955555B
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CD Player BMW E60 E61 LCI E63 E64 Radio Stereo CHAMP Business Head Unit 9187903
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BMW X5 E53 Fuse Box Label Trim Cover Panel Sticker 6920035
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Engine Control Unit BMW F20 F21 F22 118i 218i B38 136HP ECU DME 8699955 Manual
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Citroen Relay III Air Module Sensor Control Unit ECU 12V 46859297
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BMW E46 Control Unit Module Mirror Memory 6916054 61356916054
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Vauxhall Vivaro B Radio Stereo Head Unit Mount Bracket Holder Support 93867998
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BMW 3 Series E92 Footwell Light Control Module Max Brose Lear FRM3R PL2 9230445
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BMW E81 E87 E90 LCI 118d 318d N47 143HP ECU Kit DDE 8510592 CAS3 Key Manual
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Mini Cooper F55 F56 F57 LED Navigation Visual Boost 6,5" Display Screen
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Peugeot 307 1.6 HDI Diesel Engine Wiring Cable Loom Harness 9658277780
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VW Volkswagen Golf Mk8 Online Services Module Control Unit ECU 5WA035284F
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Steering Column Switch BMW E87 E81 E91 Cluster Cruise Control Stalk 9123042
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BMW Mini One R55 R56 N12 1.4 95HP ECU Kit DME CAS 3 Key 7600020
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BMW 3 X5 Series E46 E53 M54 Automatic Gearbox Basic Control Unit EGS 7508145
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715450101
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Mercedes W204 W212 E220CDI OM651 Diesel Engine Control Module ECU A6519005301
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Mercedes W205 SAM Module Comfort Control Unit ECU A2229007009
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BMW F20 120d F30 320d 184HP N47N Engine ECU Kit DDE 8578944 FEM Key Automatic
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Radio Boost CD Player Mini R56 R57 LCI R60 Head Unit Audio Player 3456871
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Mercedes W212 E220CDI OM651.924 Engine ECU Kit Key Lock Ignition A6519005301
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Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F
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REM Control Unit BMW F20 F30 F31 F34 Electrical Body Control Module V2 9362395
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Engine Alternator BMW F20 F21 F30 LCI Generator Lucas 170A N13 Petrol 7605060
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BMW E65 E66 E67 Gateway Sensor Air Module Control Unit 6928267
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Volkswagen Crafter SY Rear Lamp Tail Light Wiring Harness Right O/S 7C0945096J
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Radio Head Unit Ford Transit Connect 6000 CD Media Player Unit 6C1T18C815AH
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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 .