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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Mercedes CL203 220CDI 646.963 Engine ECU Kit A6461503934 Key + Lock + Ignition
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Audi A5 8T Radio Stereo Head Unit Control Switch Unit Audio Controller 4F0035061
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Mini R56 Footwell Light Module Control Unit Low EKS ECU PL3 FRM3R 3457029
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Telematics Module BMW F10 F20 F30 Bluetooth Communications Control 2447522
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VW Volkswagen Polo 5 1.2 TDI Engine Wiring Harness Loom Cable 03P971612
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Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907063DC
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Mercedes ML W164 Front SAM Body Comfort Module Control Unit A1645404501
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Mercedes-Benz CLK E C208 W210 Holder Bracket Engine Control Unit A2025458140
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BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9315685
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BMW F20 F21 LCI F36 F87 M2 N55 Cable Alternator Starter Base B Wiring 8621486
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BMW E87 E90 E91 118i 318i N46 129HP ECU Kit DME 7565300 + CAS3 + Key Manual
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Audi TTS 8J 2.0 TFSI CDLB 272HP Quattro Engine Control ECU 8J0907115Q Automatic
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Engine Wiring BMW E60 E61 E63 N62N Ignition Loom Harness Cable 7558200
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BMW E46 318i M43 118HP Engine Unit ECU Kit DME 1430940 EWS3 Key Manual
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BMW 7 Series E65 E66 Rear Left Door Module Wiring Loom Harness N/S 6913155
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Audi A4 B8 Avant 2.0 TDI Quattro Alternator Generator 03L903017
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BMW X3 E83 LCI 2.0d N47 177HP Diesel ECU Kit DDE 7811999 + EWS4 + Key Automatic
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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000000
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BMW 3 X5 Series E46 E53 3.0d Diesel M57 Alternator Generator 150A 2248296
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Mini R50 R52 Battery Cable Negative Wire 7522234 7519551
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BMW X3 E83 1.8d 2.0d N47 Engine Wiring Loom Harness Cables Set 3453809
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BMW X5 Series E70 ECU Body Control Module Junction Box High PL4 JBBFEII 9192739
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BMW X5 E70 Suspension Module Self Leveling Air Supply Control Unit 6793163
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BMW E91 LCI Footwell Light Control Module LCM LED Basis 9249083
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BMW X5 E70 X6 E71 CAS3 Control Unit Key Reading Module 9262360
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Part no. 7638322-1
Mini Cooper R56 LCI N16 1.6 122HP Petrol Engine ECU Kit DME 7638322 + CAS3 + Key
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Mercedes W204 Battery Wiring Cable Harness Loom A2045409907
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BMW 3 Series E92 E93 LCI 320d N47N Engine Wiring Loom Harnes Automatic 8508685
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Radio Boost CD Mini R50 R52 R53 Head Unit Audio Player 4154934
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BMW G11 G30 Fuse Box Power Distribution Electrical Control Unit Box Rear 9393144
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BMW X6 E71 35dX M57N2 286HP Engine ECU Unit DDE 8509036 CAS3 Key Automatic
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BMW F80 M3 F82 F83 M4 431HP Engine Unit Module ECU DME 8679840 Dual Clutch
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Mercedes C118 C253 Rear Bumper Switch Sensor Module A2139058101
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BMW F98 Battery Lead Pole Negative Cable IBS Sensor 8736083
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BMW E90 E92 330d 335d M57N2 Engine Injector Module Wiring Harness Cable 7796081
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BMW E87 E90 E91 118i 318i N46 129HP ECU Kit DME 7565300 + CAS2 + Key Automatic
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Mini Cooper R60 Footwell Light Module High EKS PL3 FRM3R Lear 3456952
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BMW 1 Series E88 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9230454
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MINI Cooper R50 W10 116HP Engine ECU Kit DME 7527610 + EWS + Key Manual
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BMW F40 Mini F55 F56 Fuse Box Power Distribution Junction Relay Unit 9270356
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BMW SEBANG AGM 12V Accumulator Battery 80Ah 800A 9381775 7555718
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Part no. 1K0907530F
Volkswagen Touran 1T Central Gateway Module Control Unit Lear 1K0907530F
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Starter Mercedes W204 W212 Diesel OM642 Starter Motor 1005831549
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BMW E39 523i E46 323Ci M52 170HP Engine ECU Module DME 7500255 Automatic
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BMW 1 Series F40 Rear Bumper PDC Cables Wiring Loom Set 5A07A51
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BMW F20 F21 F30 F31 LCI Device Holder Electronics Box 8615264
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AdBlue Control Unit BMW G20 X3 G01 X4 G02 Module ECU 5A0DB23
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Radio Player Mercedes W169 W245 Audio 20 Stereo CD Head Unit Display A1698705994
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Mercedes W176 M270 Petrol Engine Wiring Harness Loom Cable A2701504400
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Audi A5 8T Volkswagen Touareg TV Tuner Digital Video Control Module 4F0919129D
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BMW E92 LCI Footwell Xenon Light Control Module Lear FRM3R PL2 9263798
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VDP Module BMW G11 G12 Rear Dynamic Air Suspension High2 Unit Module 6889573
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Mercedes W251 Radio Sat Nav Navigation System Head Unit Screen A2518708089
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Mini Cooper R56 LCI Footwell Light Module High EKS ECU FRM3R PL3 3457389
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Audi S5 8T Parking Electric Brake Handbrake Module Control Unit 8K0907801L
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Part no. 8579482-4
BMW F20 F21 116d ed Diesel N47N 116HP ECU Kit DDE 8579482 + Key + FEM Manual
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Audi A5 S5 8T PDC Parking Distance Assist Sensor Module Control Unit 8K0919475G
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VW Seat Skoda Polo MK5 Diesel Engine Alternator Generator 140A 14V 03P903023D
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BMW 3 Series E92 Front Left N/S Door Wiring Cables Harness Loom 6957124
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Part no. 8512292-3
BMW E90 E91 LCI N47N 320d 177HP Engine ECU Kit DDE 8512292 CAS3 + Key Manual
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Audi A7 4G8 ESP Yaw Rate Module Control Unit Sensor ECU 4G0907637K
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BMW 5 Series E60 E61 M54 520i 525i 530i Engine Wiring Harness Loom 7529729
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BMW E65 730i M54 231HP Engine Control Unit Module ECU DME 7532140 Automatic
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BMW E87 E90 118i 318i N46 129HP Engine Control Unit ECU Kit DME 7552176 CAS2 Key
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BMW 5 6 E60 E63 LCI Body Control Module ECU Control Unit KBM Basis 6957528
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BMW 5 Series E60 E61 Centre Console Switch Centre DTC PDC 6952477
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BMW F20 F21 F22 F30 F31 Head Unit Media DAB Navigation Business Headunit 8798216
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MINI One R50 R52 W10 90HP Engine Control Unit Module ECU DME 7553735 Manual
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Mercedes W251 Rear Passengers Entertainment Control Unit A2518703390
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Communication Module BMW M4 F82 Telematic Bluetooth Control Unit 8734753
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Mercedes W470 Nissan Navara Distance Control Sensor Radar 4135A-ARS4B
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BMW E46 X3 E83 Power Distribution Fusebox Cover Fuse Box 8364542
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BMW X5 Series E53 3.0i M54 231HP ECU Engine Control Unit DME 7545150 Automatic
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Audi A5 F5 Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8W6971104A
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Audi A3 8V Air Module Control Unit SRS System ECU 5Q0959655AR
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Mercedes W447 OM622 Diesel Engine Alternator Generator A0009064022
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Audi A5 8T Onboard Comfort Supply BCM Control Module Unit ECU 8K0907063DD
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Body Control Module BMW X5 E70 ECU Junction Box LOW PL4 JBBFEII 2 9138471
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Mercedes W168 A140 ESP + HBA Electronic Stability Control Module A1685453532
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Mercedes W204 C180 156HP Kompressor 271.910 Engine ECU Kit A2711504279 Key Lock
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VDP Module BMW G30 Rear Dynamic Air Suspension High0 Control Unit Module 6867110
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BMW E65 E66 E67 Rear Seat Headrest Adjustment Actuator Drive 7123326
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BMW E90 E91 E92 335i 306HP Engine N54 ECU Kit DME 7575875 + CAS3 + Key Automatic
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Ford Transit Custom Rear Reverse View Parking Camera Unit ECU GK2T19G490AB
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BMW X5 E70 3.0sd M57N2 286HP Engine ECU Kit DDE 7823800 CAS3 Key Automatic
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Mercedes C118 C205 C253 Automatic Gearbox Control Unit Module ECU A0009008324
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Volkswagen Golf 1K GTI 2.0 TFSI CCZB 211HP Engine Control ECU 5K0907115 Manual
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BMW X3 X5 E53 E60 E61 E65 E83 Power Steering Speed Sensor 6762235
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Mercedes Sprinter W906 100Ah Auxiliary Additional Generator Battery A0009820008
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Volkswagen Touran 1T Module BCM Body Control Unit Module ECU 3C0937049E
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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 .