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 B9 Antenna Amplifier Aerial Control Module Unit 4M0035456A
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Mercedes W163 ECU Start Engine Control Unit Immobilizer Ring A1635454032
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Headlight Module BMW F40 LED Headlamp Control Unit Lear FLM 2 LOW 7933357
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Head Unit BMW F30 F31 F32 Radio Professional CD Player Control Module 9357988
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Navigation Head Unit BMW E81 E87 E90 LCI Car Computer Sat Nav CIC 9273188
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Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500133
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BMW E60 E81 E87 LCI E90 Hands Free Bluetooth Module High MULF2 9229740
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Body Control BMW F30 F35 F35 LCI BCM Comfort Module Unit BCM 8709210
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BMW E85 Battery Lead Positive Cable Plus Pole Wiring Cabling 6935667
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BMW E90 E91 LCI N47N 320d 184HP Engine Control ECU Kit DDE 8518269 + CAS3 + Keys
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Radio Stereo BMW F20 F30 F31 Professional CD DAB Nav Head Unit 9299272
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BMW X5 E53 3.0d M57 184HP ECU Kit DDE 7789376 + EWS3 + Keys Automatic
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Module BMW E82 Junction Box Body Comfort Control Unit 9286780
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BMW E87 E90 E91 Power Distribution Fuse Box Front 6906613
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BMW F01 F02 Air Suspension Control Unit Rear Axle 6857942
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key Lock
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Audi A4 B8 3.0 TDI CAPA Diesel Alternator 04L903017A
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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BMW E60 E61 Rear PDC Parking Sensor Orientblau Orient Blue 8019683
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BMW F07 GT Light Control Footwell Module Unit ECU FRM III 9236459
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BMW X5 SERIES E53 GROUND CABLE ALTERNATOR PETROL 1438941
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Audi Q3 8U Boot Tailgate Control module Unit 8U0959107
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Peugeot Partner Citroen Berlingo Mk2 Wiring Cable Loom Diesel Engine 9803029180
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Vauxhall Opel Astra G Display Screen Multifunction Unit Dashboard 009133265
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BMW X3 F25 X4 F26 Integrated Supply Module 8645515
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BMW E60 LCI E90 325d 525d M57N2 ECU Kit Basic Control Unit DDE 8506951 CAS3 Key
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SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049005201
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BMW 5 7 X3 X5 X6 F10 F11 E70 E71 F01 F02 Rain Light Solar Sensor Unit 9123152
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Mercedes C118 W177 W247 Battery Box Tray Trim Housing Cover A2475411000
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BMW E60 M5 E63 E64 M6 S85 Starter Motor 7835126
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VW Volkswagen Caddy Maxi Fuse Box Control Unit Power Distribution 1KO937125D
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BMW E46 Led Indicator Side Light Signal 7165845
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Audi TT 8J Petrol Engine Starter Motor 2.0 TFSI BWA 02E911023J
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BMW X5 E70 CCC Navigation System CD Player Sat Nav Head Unit 9191568
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Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273H
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BMW 1 Series F20 F20N LCI Front Door Wiring Loom Harness Driver Side 9291956
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Audi A8 4E S8 D3 Comfort Module Electric Steering Column Unit 4E0907279S
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BMW X1 F48 Mini Cooper F55 F56 F60 Connecting Line CID/HU-H 9380947
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Ford Fiesta MK7 1.6 TDCI Diesel Engine Control Unit ECU 8V2112A650KE Manual
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Audi Q7 4L Diagnostic Interface Gateway Control Module Unit ECU 4F0907468N
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Mercedes C204 Wiring Cable Harness Front Driver Door Wiring Loom A2044400538
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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000300
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Audi A4 B8 Rear Door Module Control Unit ECU Left N/S 8K0959795A
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Battery Cable BMW F45 Mini F54 F56 B48 Alternator Starter Wiring 8602973
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Mini Cooper One R55 R56 N12 DME 7573701 Petrol Engine Control Unit ECU Manual
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Mercedes W211 Body Control Module BCM Comfort Module Unit A2115453532
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BMW E46 Inclination Indicator Alarm Tilt Sensor Control Module 8386932
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Alternator Generator Mercedes W164 OM642 180A Electrical Unit Diesel A6421540502
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BMW E87 E90 E91 E92 E93 Fuse Box Power Distribution Front 6906621
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Ford Transit Connect 1.8 TDCi Engine Control ECU Module Manual AT1112A650BD
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Audi A3 8P Battery Box Tray Housing Holder Bracket Cover Mount 1K0915333H
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BMW Mini Cooper One D R55 R56 Engine Starter Motor Diesel Valeo 7805098
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Fuse Box Mercedes GLE W166 C292 W463 Relay Control Unit Module A1669068201
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Radio CD Player Mercedes W211 CLS C219 COMAND Navigation Head Unit A2118204497
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BMW X5 E53 X3 E83 Control Unit Xenon Adaptive Headlight Ballast 6939069
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Starter Mercedes W204 W212 W906 Diesel OM651 Starter Motor Bosch A6519062800
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BMW E81 E87 LCI 130i N52N 258HP Engine ECU Kit DME 7581123 + CAS3 + Key Manual
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Volkswagen Tiguan 5N Air Module Control Unit ECU Module 5N0959655A
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BMW Z4 E85 2.2i 2.5i 3.0i M54 Wiring Loom Harness Engine Module 7532036
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BMW Z4 E89 20i N20 184HP Petrol Engine ECU Kit CAS3 + Keys 8661466 Automatic
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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module A6394460332
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Audi A4 B7 Door Harness Loom Cable Wiring Rear Left Right N/O/S 8E0971687L
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BMW E60 E61 E63 E64 Parking Control Module Unit PDC 9185139
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Mercedes ML W164 SLK R171 W211 C219 CD Changer 6 Disc Player Unit A2118705390
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BMW 3 X5 Series E46 E53 M54 Automatic Gearbox Basic Control Unit EGS 7508145
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Mini R50 R52 R53 Radio Boost CD Player Unit Head 6941509
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BMW E60 E90 LCI 325i 525i N53 218HP Engine Control Unit ECU DME 7578020 Manual
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Battery Cable VW Polo 6R Audi A1 8X Starter Alternator Wiring 6C0971349MD
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BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9292948
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CAS4 Module BMW F01 F10 F11 Key Reading Control Unit 9257036
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Alternator Generator Mercedes W176 W246 OM651 Diesel Engine 175A A0009063322
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Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640
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ESP Sensor Mercedes W164 W221 Yaw Rotation Rate Sensor A0055422018
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Mercedes ML W164 Transfer Case Box Module Control Unit ECU A1645408662
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Relay Box Mercedes ML W166 Engine Compartment Relay Module A1669063801
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Mercedes W221 Audio Sound Speakers Amplifier Control Unit ECU A2219008103
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BMW X3 X5 Z4 E39 E46 E53 E83 E85 GPS Navigation Computer DVD 6920182
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Volkswagen Seat Skoda Audi 2.0 TDI Diesel Engine Starter Motor Valeo 02E911024H
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BMW 5 Series E60 M-Audio System Controller Navigation Head Unit 6942637
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BMW 3 4 Series F30 F31 F32 Front Bumper PDC Wiring Cable Loom Set 9260019
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BMW F20 F21 F30 F32 LCI Headlight Ballast Control Unit Module FLE2 LOW 8494840
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Mercedes-Benz CLK W208 Front Left Right Door Wiring Loom Harness A2085405606
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Mini Cooper R55 R56 R57 CCC CD Navigation Sat Nav Head Unit 9170730
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Ford Transit Connect Control Unit Central Door Locking Module ECU 9T1T-15K600-DD
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Mini Cooper R55 R56 N12 1.6 120HP Engine Control Unit ECU DME 7588502 Manual
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Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9064409913
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Audi A5 8T 2.0 TFSI CDNB 180HP Engine ECU Kit 8K2907115Q 2 Keys + Ignition
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BMW E38 E53 E86 F15 Mini R50 Diagnoctic Socket Connector Plug Housing 8380698
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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 .