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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MINI One D R50 W17 1ND Engine Wiring Loom Harness Module 7790365
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Alternator BMW F20 F21 F30 F31 F36 Petrol N55 Generator 210A 7616120
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BMW E60 E61 E63 E85 Air Module Control Unit Module ECU ACSM 9172018
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Mini R50 One D W17 1.4 Diesel Engine Starter Motor 7791335
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BMW E81 E87 E90 E91 120d 320d N47 Engine Control Unit ECU DDE 7811700 Automatic
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Mercedes SLK R171 Crash Sensor Air Bag Impact Module Control Unit A0038212851
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207226
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Seat Leon Mk3 Headlight Module Left Right N/O/S Headlamp Ballast 7P5941591AD
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Land Rover Freelander 2 Bluetooth Module Control Unit ECU 7G9N-10D893-AA
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BMW F20 F21 F30 F31 LCI Gearbox Transmission Harness Wiring Loom Cable 8586569
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BMW E60 E81 E87 LCI E90 120d 320d 520d N47 Engine Control Unit ECU DDE 7810000
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Mercedes C238 Head Unit Radio CD Player Audio Sat Nav Control A2229009519
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VW Polo 4 9N 1.4 TDI Seat Skoda Diesel Engine Alternator Generator 045903023A
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Mini Cooper One R56 High SPEG H1 Fuse Distribution Box 3450435
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Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129008007
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Audi Q7 4L 3.0 TDI Quattro Engine Starter Motor Actuator Starter 059911024H
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Mercedes W639 113 CDI 651.940 136HP Engine Module ECU Kit A6519009302 Key Lock
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Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702751
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Mercedes W213 PDC Parking Sensor Wiring Loom Cable Rear Bumper A2135406303
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Battery Cable BMW F12 F13 Underfloor Positive Plus Lead Wiring Harness 9151341
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Camera Module BMW F10 F20 F12 F87 Reversing Camera Rear View Control 6994555
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Audi TT FV 2.0 TFSI CHHC HV Battery Power Central Distribution Point 8S0915459A
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BMW X5 E70 Alternator Generator Engine Unit Valeo 220A 14V 7801124
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Volkswagen Touran 1T Central Gateway Module Control Unit Lear 1K0907530F
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BMW 1 3 Series E81 E87 E91 Switch Cluster Cruise Control Stalk Unit 9123038
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Renault Master III DCI Alternator Support Bracket Mount 117103585R
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Mercedes S204 Estate SAM Module Fuse Box Relay Control Unit A2129005812
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Audi A4 B8 Head Unit Radio CD Player Symphony Stereo Audio Player 8T2035195
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Navigation Head Unit BMW E60 E61 CCC CD Professional System Controller 6974913
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BMW X5 E70 Navigation System Car Computer CIC DAB X6 E71 9273182
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Audi A4 B8 Sat Nav Multimedia DAB Radio Control Head Unit 4G0035056
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Wiring Harness BMW F20 F21 F30 Motor Sensor System Module 2 7622980
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VW Volkswagen Transporter T5 1.9 TDI Diesel Engine Control Unit ECU 038906016AJ
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Engine Wiring Mercedes W906 OM651.955 Euro 5 Cable Loom Harness A6511505520
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Mercedes-Benz A-Class W168 Sensor Mat Seat Occupation Recognition A1688207310
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Mercedes W447 W907 W910 Engine Control Unit Module ECU A6549009400
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Mini Cooper R50 W10 116HP Engine Control Unit ECU Kit DME 7557395 Key EWS
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Ford Transit Connect Engine Control Unit ECU 9TGH Module 1.8 TDCi 9T11-12A650-GH
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Bluetooth Interface Audi TT 8J A3 8P Multimedia Steuergerät ECU 8P0862335K
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BMW F32 F33 F36 435i N55 306HP Engine Control Unit ECU DME 7540686 Automatic
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Mini R50 Battery Cable Positive Plus Pole Wiring W17 Diesel 6942505
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Mini One R56 N12 95HP ECU Engine Control Kit DME 7589971 + CAS3 + Key Automatic
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Audio Module Mercedes C238 Premium Sound E Control Unit A0009000518
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Mercedes W211 Negative Battery Terminal Cable Wiring A2115420418
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BMW 5 Series E60 E61 Centre Console DSC PDC Switch Center Cluster 6938310
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Starter Motor Mercedes W639 W906 OM651 Engine Diesel Bosch A6519060000
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BMW X1 E84 E90 LCI 20dX 320xd N47 177HP ECU Kit DDE 8512498 CAS3 Key Manual
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Audi A7 4G Multimedia CD Radio Control Head Unit 4G1035192A
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Radio Business BMW X3 E83 Z4 E85 E86 CD Player Head Unit 4154935
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Audi A4 B8 A5 S5 8T Door Module Control Unit Front Left N/S 8K0959793D
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Bluetooth Head Unit Mini Cooper R55 R56 R57 Radio Boost CD USB 3457050
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Mercedes W212 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2128205313
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Mini F54 F55 F57 B48 136HP Petrol Engine Control ECU Kit DME 8674258 Manual
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Ford Transit Mk7 2.4 TDCi Diesel Engine Wiring Loom Harness Cables 6C1T12B637CG
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BMW F40 Steptronic Double Clutch Gearbox Transmission Control Module 8486560
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Radio Panel Mercedes W176 W242 W246 Radio Multimedia Switch Control A2469009412
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BMW 1 3 F20 F21 F30 F31 Parking Assistant PDC Control Unit Module 6851822
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BMW 7 Series E65 E66 Sensor Front Right Door Airbag O/S 6947416
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Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800 Manual
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Part no. 06F903023HX
Volkswagen Golf Mk5 2.0 TFSI Petrol Alternator Generator 06F903023HX
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Volkswagen VW Passat B6 Fuse Box Relay Electrical Module Unit 3C0937125
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BMW E92 LCI Body Control Module ECU Junction Box L1 PL2RR JBBFE IIIR 9229872
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Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698207126
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BMW X3 E83 Wiring Harness Engine Loom Wire Gearbox Module 3412244
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BMW E60 E81 E82 E87 E90 E91 E92 ECU Key Reading Module Control Unit CAS3 9147220
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BMW X5 E70 Front Bumper PDC Wiring Loom Cable Harness 6970675
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Audi A1 8X Bluetooth Interface CarPlay MMI Retrofit Multimedia Unit Set MMI2G
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VW Volkswagen Crafter 1 Wiring Loom Harness Cable 2N0971068
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BMW F20 F21 F22 Body Control Module Unit FEM 8707679
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Mercedes C292 Negative Cable Battery Terminal Sensor A1669055901
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BMW X5 E38 E39 E46 E53 GPS Navigation System Computer Unit 6922720
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BMW X5 Series E53 Battery Positive Lead Red Cable Wire Plus Pole 6906911
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BMW E90 E91 LCI 330d Diesel N57 245HP ECU Engine Kit DDE 8510221 CAS3 + Key
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Battery Cable VW Polo 6R Positive Alternator Starter Wiring B+ 6R0971349Q
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Mini Cooper R55 R56 R57 LCI Radio Boost CD USB Bluetooth Head Unit 3457050
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BMW E70 E71 F01 F02 F10 F11 F30 F31 Diesel Starter Motor NAPA 8581098
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Mercedes ML W164 W251 Fuse Box Relay Module Control Unit A1645403572
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BMW E60 E90 325i 525i N53 218HP ECU Engine Control Module DME 7588620 Automatic
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Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
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BMW E87 E90 E91 118i 318i N46 ECU Kit DME 7565300 CAS3 + Key Manual
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Renault Trafic F83 M9R 2.0 DCI Engine Control Unit Module ECU 8200935115 Manual
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Fuel Pump Control Audi A4 B9 A5 F5 A6 C8 Pump Unit Module ECU 4K0906121C
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Mini Cooper R56 LCI ECU Footwell Light Module FRM3R LOW EKS Lear 3456394
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Mini Cooper R56 LCI R60 N16 122HP Engine Control Unit ECU DME 8600124 Manual
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Porsche Boxster 986 Air Module Control Unit ECU 99661821901
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BMW 3 Series E90 E91 LCI 320d N47N 184HP ECU Kit DDE 8506566 CAS3 + Key Manual
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BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9868383
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Toyota Yaris MK1 Display Screen Monitor Radio Nav Navigation Unit 861100D040
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Renault Trafic II Vauxhall Vivaro A 2.0 DCI Alternator Generator 8200404459D
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Mercedes W176 W246 USB Interface Multimedia Adapter Connector A1728201700
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BMW F20 F21 F30 LCI F22 F32 G30 X3 F25 Starter Acoustic Vibration Plug 8571349
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Audi A4 B9 2.0 TDI DETA Quattro Engine Control Unit ECU 04L907309L Automatic
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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 .