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 Varta VRLA / AGM 12V Accumulator Battery 80Ah 800A 7555718
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VW Volkswagen Polo 6R Battery Fuse Distribution Terminal Unit 6R0937550A
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Mercedes W176 A 180 270.910 122HP Blue Efficiency ECU Kit A2709000900 Key Lock
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Head Unit BMW F20 F21 F22 F30 F31 LCI Radio CD Player Navigation GPS 9441865
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BMW E90 E91 LCI E92 E93 325i N53 218HP ECU Kit DME CAS3 + Key 7612455 Manual
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Mini Cooper R56 R57 LCI R60 N16 122HP Petrol Engine ECU DME 7607685 Unit Manual
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BMW E60 E61 E65 E70 X6 E71 Trailer Towing Control Module 9215050
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BMW E83 E85 Top Hifi Amplifier Audio System Carver DSP 6936952
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Mercedes Sprinter W906 Air SRS Bag Control Module Unit 0285010033 A9064460742
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Mercedes AGM Accumulator Battery 80Ah 800A 12V Varta
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Airbag Module BMW F20 F21 LCI F30 F31 F32 ECU Control Unit Air Bag 6879836
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Audi TT 8J Driver's Side Door Wiring Harness Loom 8J0971029AD
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BMW X6 Series E71 Footwell Light Xenon Control Module Unit LEAR FRM3R XE 9263790
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BMW X5 X6 Series E70 3.0sd E71 35dX M57N2 Engine Wiring Harness DDE Set 7803681
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BMW F20 F30 Front Sport Seat Backrest Heating Mat Element 7243564
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BMW F20 F21 LCI Mini F55 F56 Top Hifi Audio Amplifier Harman Kardon 6846906
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Mercedes W212 Display Screen Multifunction Navigation Dashboard A2129015706
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Audi TT 8J Front Left N/S Door Wiring Harness Cable Lom 8J0971030AE 8J0971030AB
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Mini Cooper SD R55 R56 LCI R60 N47N 143HP Engine ECU DDE 8519663 Automatic
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Mini Cooper One R57 Footwell Light Module High EKS ECU PL3 FRM3R 3456987
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Mini F54 Clubman F60 Countryman KaFAS Camera Windscreen Front Unit7943529
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BMW 7 Series E65 Light Control Unit Module DYN.LWR Lear 6922663
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BMW X3 E83 3.0d M57N2 218HP ECU Control Unit Kit DME 7801217 + EWS3 + Key Manual
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BMW F20 F21 114i N13 102HP Engine Unit ECU Kit DME 7640755 Key FEM Lock Manual
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BMW E60 E61 E63 X3 E83 F25 Cigarette Lighter Power Socket 12V 6917701
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GPS Module BMW E81 E87 E90 E91 LCI Combox Telematics Control Unit 9257162
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BMW X5 F15 Bumper PDC Rear Wiring Loom Parking Sensor Cable 9355462
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Mercedes W204 Automatic Gearbox EGS Control Module Unit ECU A0005454416
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Junction Box BMW F07 GT Electronics Control Module Unit 9267470
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Mercedes W211 Radio Stereo CD Player COMAND Sat Navigation Head Unit A2118276842
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Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9064409913
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Mercedes ML W164 Fuse Box Relay Control Unit Module A1645403272
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Mercedes C Class W203 OM646 Diesel Engine Wiring Harness Loom A6461502033
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Mercedes W205 C220d 654.920 194HP Engine ECU Module Unit A6549003200 Automatic
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BMW 1 3 Series E87 E90 120i 320i N46 ECU Kit DME CAS2 2 Keys 7545042 Manual
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BMW F01 F02 LCI F06 F10 F11 F13 ECU ICM Control Unit Module Airbag 6850783
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BMW E90 E91 E92 E93 330i N53 272HP ECU Engine Control Unit DME 7576719 Automatic
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BMW E83 LCI 3.0sd 286HP M57N2 Engine ECU KIT DDE 7809955 + EWS + Key Automatic
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BMW 3 5 X5 Series E39 E46 E53 Radio BMW Professional TMC 6933091
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Media Connector Cable Mercedes W204 W212 Audio Wire A2128203515
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BMW 5 7 Series E60 E65 Sunroof Sliding Roof Drive Unit Motor Actuator
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Mercedes W213 Alternator Generator 200A 14V A0009063003
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Audi A4 S4 B9 Boot Trunk Subwoofer Rear Bass Speaker Audio Unit 8W9035382B
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BMW F20 F30 125d 325d N47S1 Engine Control Unit ECU DDE 8582521 FEM Lock Key
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Mini R55 R56 R57 LCI R58 R59 R60 MINI CD Radio Audio Player Head Unit 3456805
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Control Unit A2129068800
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Mercedes C117 CLA45 AMG M133.980 4-Matic Engine Control ECU Kit A2709002100 Key
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Mercedes W164 W203 W211 C219 Front Seat Module Memory Control Unit A2118704926
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BMW 1 E87 2 Footwell Light Control Module ECU NSW PL2 FRM II Lear 9166711
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CAS3 Module BMW E60 E61 LCI E90 E91 E92 Control Unit Key Reading 9287534
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Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A1669056001
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BMW F20 LCI 118i B38 136HP Engine ECU Kit DME 8662411 + FEM + Key Automatic
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BMW X3 E83 Z4 E85 3.0i M54 231HP Engine Control ECU DME 7543157 Manual
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Mercedes Sprinter W907 W910 Head Unit Multimedia Controller Module A9079008805
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Mercedes W221 S320CDI Parktronic System Sensors Control Module PDC A2215408262
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BMW 3 Z4 Series E46 E89 Mini R50 R52 Parking Control Module Unit PDC 6985501
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Part no. 8K0959792H
Door Control Module Audi S4 A4 B8 A5 8T Front Right O/S Passenger 8K0959792H
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Part no. 8408383
Parking Sensor PDC BMW X5 E53 Front Cover Control Primed 8408383
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Part no. 7L6959933A
Volkswagen Touareg 7L Control Comfort Unit Module Unit ECU 7L6959933A
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Part no. 7520321
Engine Wiring Loom Mini R50 Petrol W10 Module Harness Cables 7520321
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Mercedes W204 Door Wiring Front Right O/S Door Cable Harness A2044401238
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Communication Module Mercedes W205 W213 C253 Hermes LTE Control Unit A2389007704
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Mercedes W212 E300 Hybrid Lithium-ion Battery BMS Accumulator A7893409801
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Part no. 7327886
Tailgate Module BMW F01 F10 Rear Boot Trunk Lid Control Unit ECU 7327886
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Audi Q5 8R Battery Earth Negative Terminal Cable Lead 80A915181A
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Seat Wiring BMW F22 F30 Driver's Side Seat Memory Loom Cable Set 9339296
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BMW X1 F48 F45 G30 Telematics Module Bluetooth Telephone Control Unit 8734740
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126
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Part no. 9191554
Navigation Head Unit BMW E60 E61 CCC CD Sat Nav Player System Controller 9191554
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BMW F01 F02 F10 F11 CD Radio Head Unit CIC 9289247
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Volkswagen New Beetle Yaw Sensor Rate Acceletarion Control Module 1J2907637G
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BMW Disc Professional Navigation DVD Road Map Europe T1000-26026
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Starter Motor VW Golf GTI Audi Seat Skoda Petrol CJX CHHA Bosch 1.1KW 02E911024B
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BMW E90 E9X Led Footwell Light Module Control Unit ECU 9230446
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Mercedes W204 C200 CDI BlueEFFICIENCY 651.913 136HP ECU Kit A6519007500 Key Lock
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Light Module Mercedes W209 W219 W164 Headlight Headlamp Control Unit A2198202526
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YUASA 5000 12V Accumulator Battery 100Ah 900A HSB019
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Chrysler Grand Voyager Automatic Gearbox Control Module Unit ECU P04727535AE
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BMW F20 F21 F30 F31 LCI Radio Stereo Basic Navigation Sat Nav Head Unit 8705960
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BMW 1 X5 Series E53 E87 Hands-free Bluetooth Charging Module MULF Unit 6987546
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Mercedes R170 SLK 230 Kompressor M111.973 Engine ECU A0235458332 Automatic
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Part no. 3456586
Mini Countryman R60 Light Module Footwell Module PL3 FRM3R Lear ECU 3456586
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Keyless Module Mercedes W205 W207 W213 ECU Door Lock Control Unit A2139008707
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BMW F30 Front Light Lamp Adaptive Xenon Control Unit Module LEAR 7316142
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Part no. 9263798-1
BMW E93 LCI Footwell Xenon Light Control Module Lear FRM3R PL2 9263798
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BMW Disc Navigation DVD Road Map Europe T1000-26966
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BMW E81 E87 LCI E90 E91 N43 Petrol Engine Control Unit ECU DME 7578032 Manual
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Audi Q5 FY Body Control Unit Module BCM2 On-board Power Supply 4N0907064AH
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9239226
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Audi A3 8V Dashboard Sat Nav Drive Unit Multimedia Infortaiment 8V0035020J
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BMW E82 Footwell Light Module Control Unit ECU NSW PL2 FRM II 9197177
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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 .