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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Part no. 4G0907397R
Audi S1 8X Front Lamp Headlight DRL Ballast Control Module Unit 4G0907397R
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Part no. 9164352-1
BMW E90 E91 E92 IBS Negative Minus Battery Lead Cable Wire 9164352
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Mini Cooper R60 Countryman High PL3 SPEG H6 Fuse Distribution Box 9809381
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Mini Cooper One R50 Heat Resistant Battery Box Cover 6915175
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BMW 3 6 X3 Series E46 E63 E83 MINI R50 R53 Control Unit Xenon Light 1307329074
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Mini Cooper One R50 R52 R53 Power Distribution Fuse Box Front 6906614
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BMW E91 Light Control Module ECU PL2 FRMFA Lear 61359128183 9128183
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Mini Cooper R56 LCI N16 1.6 Petrol Engine ECU Kit DME 7607685 + CAS 3 + Key
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BMW F20 F21 F30 F31 LCI Professional Navigation Sat Nav Unit Head Unit 8794119
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Parking Brake Control Audi A4 B8 A5 8T Q5 8R Electric Brake Module 8K0907801E
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BMW X1 E84 Footwell Light Control Unit Module ECU Lear FRM3R PL2 9308365
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Part no. A1408206026
Mercedes C140 Comfort Convenience Control Module Unit ECU A1408206026
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Part no. 1K0909605T
VW Volkswagen Golf Mk5 V 1K Air Module Control Unit ECU 1K0909605T
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Part no. A0121544502
Mercedes W168 Alternator Generator A0121544502
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Mercedes ML W164 SLK R171 W211 C219 CD Changer 6 Disc Player Unit A2118705390
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Part no. 7603567-1
Battery Cable BMW X5 X6 E70 E71 IBS Negative Battery Lead Cable 9164357
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Part no. 9253480
BMW 3 Series E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359253480 9253480
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Part no. A1715451701-1
Fuse Box Mercedes SLK R171 Roadster SAM Relay Box Control Module A1715451701
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Part no. 9159041
BMW E90 E91 E92 Professional CCC Navigation System Controller 9159041
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Part no. 3420786
BMW X3 E83 Light ECU Control Module Unit Lear LM MAN.LWR 3420786
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Part no. A2058200526-1
SD Card Reader Mercedes W213 S213 Multimedia USB Port Socket Module A2058200526
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Part no. A1648705094
Mercedes ML W164 Audio Stereo Radio CD Player Head Unit A1648705094
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Part no. MMI2G-CARPLAY-A1
Audi A1 8X Bluetooth Interface CarPlay MMI Retrofit Multimedia Unit Set MMI2G
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Part no. 9231093
BMW E60 E87 E90 Telematics Bluetooth Control Unit Module 9231093
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Part no. 9476858
Airbag Module BMW G20 G21 SRS Control Unit Module ECU 9476858
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Part no. 8T0862335F
Audi A4 B8 Bluetooth Multimedia Interface Control Module Unit ECU 8T0862335B
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Part no. A2049017801
Mercedes W204 W212 Windscreen Rain Sensor Control Unit A2049017801
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Part no. 9216273-1
Auto Radio BMW E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9216273
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Part no. 9348726-1
BMW F20 F21 F30 F31 Air Module Control Unit ECU 9348726 0285012518
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Part no. A2661541202
Mercedes-Benz A B Class W169 W245 Alternator Generator Petrol 90A A2661541202
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Part no. 9250454
BMW 5 Series F10 Light Control Footwell Module ECU Unit FRM3 9250454
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Part no. 9119491
BMW E90 ECU Body Control Module Unit Junction Box H1 PL2 JBBFE 9119491
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Part no. 9221719
Mini Cooper R55 R56 R60 CAS 3 ECU Control Unit Key Reading Module 9221719
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Part no. 6943062
BMW E60 E63 E64 LCI Body module ECU 61356943062 6943062
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Part no. 9270050
PDC Parking Sensor BMW F01 F10 F11 Front Rear Bumper Sophisto Grey 9270050
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Part no. 6949289
Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6949289
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Part no. 6965050
CAS2 Module BMW E60 E61 E63 E64 Car Access Control Unit ECU 6965050
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Part no. 8376443
BMW X3 X5 Z4 E46 E53 E83 E85 Switch Cluster Steering Column 8376443
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Part no. 9243913
BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9243913
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Part no. A2038201585-1
Mercedes W203 Door Module Control Unit Front Left N/S A2038201585
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Part no. A6421540402
Mercedes W164 W204 W211 OM642 Diesel Alternator Generator A6421540402
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Part no. A1669056001
Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A1669056001
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Part no. 7316535
BMW 1 2 3 Series F20 F22 F30 Sliding Sunroof Drive Motor Unit Webasto 7193398
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Part no. 3448827
Mini R55 R56 Radio Boost CD Player Head Unit 3448827
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Yaw Rate Sensor Mercedes W169 W245 W211 W219 Turn Rate Sensor A2165420018
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Part no. 9166707
BMW E87 LCI Light Module NSW LCM Footwell Module PL2 FRM II 9166707
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Part no. 6921593
MINI Cooper One R50 R53 Wave Radio Cassette Headunit Tape Player 6921593
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Part no. 9134855-1
Battery Lead BMW E81 E87 Battery Cable Negative IBS 9134855 61129134855
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Part no. 9178862
BMW 1 3 Series E87 E90 Hands-free Electronics Bluetooth Module MULF2 9178862
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Part no. 9211494
BMW E88 Cabrio Convertible Folding Top Roof ECU Module CVM6 9211494
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Part no. A2469007018
Mercedes W176 W246 Display Screen Radio Navigation Sat Nav Unit A2469007018
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Part no. 9216337
BMW F20 F21 Amplifier Holder Audio Catch Bracket Trim Panel 9216337
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Part no. 8782591
Mini F55 F56 Roof Antenna AM FM GPS TEL 8782591 65208782591
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Part no. 9362848
BMW 1 3 Series F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module
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Part no. 6977723
BMW E87 Light Module Control ECU Unit LCM Footwell Module PL2 FRMFA 6977723
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Part no. A6399003100
Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003100
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Part no. 9299265
BMW 1 2 3 Series F20 F21 F22 F30 Radio Professional CD Bluetooth Player 9299265
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Part no. 7428425
LED Module BMW F20 F21 LCI Headlight Front Lamp Headlamp 7428425
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Part no. 1477831
BMW Mini Cooper One R50 R52 Intake Silencer Air Filter Box 1477831
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Part no. 9145439
BMW E46 X3 E83 Diesel Auxiliary Heating Electric Flow Heater 9145439
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Part no. A0009006207
Mercedes-Benz A B E W176 W212 W246 Fuel Pump Module Control Unit A0009006207
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Part no. 6963038
BMW Z4 E85 Body Control Unit Module GM5STAR12 LOW 6963038
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Part no. 6974021
BMW X1 E81 E87 E88 E90 E91 Parking Control Module Unit PDC 6974021
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Part no. 7802471
BMW E87 E90 E90N E91 E92 E93 Alternator Generator Diesel 7802471
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Part no. 9290989
BMW F30 F31 F32 Bluetooth Player Unit Radio Professional CD 9290989
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Part no. 9287535
CAS3 Module BMW E60 E87 E90 E91 E92 Key Reading Control Unit 9287535
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Part no. 9159807
BMW 1 Series E87 LCI ECU Light Module Footwell NSW PL2 FRM II Lear 9159807
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Part no. 1508931
Mini Cooper S R53 Positive Battery Cable Plus Pole Wire 1508931
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Part no. 4154935-1
Radio Business BMW X3 E83 Z4 E85 E86 CD Player Head Unit 4154935
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Part no. A1769052400-1
Mercedes W176 Pressure Crash Impact Sensor A1769052400
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Part no. A1699000500
Mercedes W169 W245 Door Control Module Front Left N/S A1699000500
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Part no. 6943791
BMW E87 E90 CAS2 ECU Control Unit Module 61356943791 6943791
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Part no. 9311113
Mini R55 R56 R57 LCI R60 R61 Navigation Head Unit CHAMP 2 Sat Nav DAB 9311113
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Part no. 7640005-4
Mini One R55 R56 N12 1.4 95HP Petrol ECU Kit DME 7640005 CAS3 + Key Manual
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Part no. 9352861
FEM Unit BMW F20 F22 F30 F32 Control Unit Module ECU Fuse Box 9352861
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Part no. 7513338
Mini Cooper R50 R52 Automatic Gearbox Transmission Signal Control Module 7513338
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Part no. 6965279
BMW E82 E88 E90 Switch Cluster Cruise Control Stalk Unit 6965279
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Part no. A2038202686
Mercedes W203 W639 Audio 10 CD Player Audio Stereo Radio Head Unit A2038202686
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Part no. 3451925
Mini Cooper One R56 High SPEG DC/DC M3 Fuse Distribution Box 3451925
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Part no. 8K0959795C
Audi A4 B8 Door Module Rear Left Right N/O/S Control Unit Module ECU 8K0959795C
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Part no. 7801200
BMW E60 X3 E83 E87 E90 Unit Glow Plug Module Diesel M47N2 7786821
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Part no. 7806987-5
BMW E60 LCI E90 E91 325d 525d Engine M57N2 197HP ECU Kit DDE 7806987 CAS3 + Key
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Starter Motor Mercedes W203 W209 W211 W906 Engine Diesel A0051516601
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Audi Q3 S Line Multimedia Radio Sat Nav Screen Display Head Unit 8U0857273E
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BMW E60 E61 E63 E65 Amplifier Stereo HiFi Harman/Becker 6920461
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BMW Mini Cooper S R55 R56 Engine Wiring Loom Harness Injection Valve Ignition
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BMW E90 Radio Professional CD Player 65126971703 6971703
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player Control Unit 9146710
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Part no. A2045458132
Steering Lock Module Mercedes W204 W207 W212 Control Unit A2045458132
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Part no. 9142414
Mini R50 R52 R53 Radio Boost CD Player Head Unit 9142414
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Part no. 4E0919887M
Sat Nav Audi S8 D3 A6 C6 DVD Drive Navigation Control Unit 4E0919887M
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Part no. A2661540802
Mercedes-Benz W169 W245 Alternator Generator Petrol 90A A2661540802
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Part no. 9147226
BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147226
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Part no. 3450824
Mini Cooper One R56 High SPEG Fuse Distribution Box H1 3450824
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Part no. 6778966
BMW X5 E70 Air Suspension Supply Control Unit Module ECU 6778966
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Part no. 1477831-1
Mini Cooper One R50 R52 Air Intake Silencer Filter Box 1477831
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Part no. A2469009802
Mercedes W176 Radio Control Function Button Knob Controller Unit A2469009802
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Part no. 6906600
Fuse Box Mini Cooper R50 R52 R53 JCW Housing 1509011
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Part no. 7523897
Mini Cooper One R50 R52 Alternator Generator 100A Petrol 7523897
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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 .