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. A2218206689
Mercedes W221 S500 Audio Amplifier Sound System Control Module A2218205289
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Audi A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181C
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Mercedes C140 Seat Belt Module Control Unit ECU A1408202526
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Volkswagen VW Passat B7 Driver's Seat Control Unit Module ECU 3C8959760E
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Mercedes W169 W245 Door Control Module Front Left N/S A1699000500
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BMW 5 7 X5 E34 E38 E39 E53 Petrol Engine Starter Motor 1729981
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BMW F20 F30 F32 120d 320d 420d N47N 184HP ECU Kit DDE 8517862 + Key + FEM Manual
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BMW E93 Convertible Cabrio Rear Bumper TV Aaerial 9152325
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Audi A3 8P Convertible Roof Control Module ECU 8P7959255
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Mercedes S204 Fuse Box Terminal Connection Unit A2045450369
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BMW E81 E82 E87 E88 E89 E90 E91 E92 Radio Professional CD 9187108
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Radio Player Mini F55 F56 CD Bluetooth DAB Alpine Control Unit Module 9344050
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Mercedes W205 Petrol Engine Alternator Electrical Cable A2649001000
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BMW E60 E61 E90 E91 LCI Display Screen 8.8" Monitor Sat Nav 9211969
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Microphone Mercedes W447 W907 W910 Hands-free Interior Mic Unit A4478200035
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Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 6500CY
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Mercedes W213 S213 Multimedia USB SD Card Reader Port Socket Module A2058200526
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Opel Insignia A 2.0 CDTI Diesel Engine Alternator Generator 14V 100A 13502583
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Ford Transit Airbag Module Air Bag Control Unit ECU 6C1T14B056
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BMW E46 Convertible Rollover Sensor Control Unit Module 8385223
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BMW E81 E87 LCI E90 E91 120d 320d N47 ECU KIT DDE 8506438 CAS 3 Key Automatic
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Ford Transit Mk8 2.0 Ecoblue Diesel Glow Plug Wiring Loom GK2T-6M091-AB
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BMW E87 ECU Body Control Module L2 JBBFE PL2 61359131779 9131779
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BMW 3 Series E90 E92 Antenna Amplifier Diversity TV Function 868 MHZ 6928936
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Mercedes W211 Multimedia Wiring Loom Electrical Harness Cable A2115409910
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BMW 5 X3 X5 Series E53 E60 E61 E83 PDC Parking Sensor Ultrasonic Schwarz Black
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Mini Cooper R55 R56 N12 1.6 120HP ECU Kit DME + CAS3 + Key 7600020 Automatic
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Peugeot 5008 2.0 HDI DW10C Diesel Engine Control Unit ECU 9667082380
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7812502 + CAS3 + Key Automatic
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BMW F20 F21 F30 F31 Petrol N20 Electrical Fuse Box Cover Lid Panel 8616568
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Mercedes W221 Cover Fuse Box Case Trim Panel Lid A2215401682
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BMW E87 E90 Radio Business CD Player Audio Control Unit E81 E91 9200101
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BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8518424 + FEM + Key Manual
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BMW F20 F21 F22 F30 F31 F32 F33 Fuse Box Body Control Unit Module REM V5 6819336
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BMW E60 E61 E63 E64 PDC Parking Control Module Unit ECU 9116264
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Audi A3 8P TT 8J PDC Parking Distance Control Unit Module 8E0054635D
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Skoda Octavia 5E Front Door Control Module Unit Passenger Side 5Q4959392B
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BMW F20 F21 F22 F30 F31 F32 F33 F36 Fan Motor Relay 9207913
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Fuel Pump Module Audi A4 B7 A6 C6 Q7 4L Sender Control Relay Unit ECU 8E0951253
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BMW 7 Series E65 E66 Seat Occupancy Sensor Mat Electronic Control Unit 6917134
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Mercedes Vito W639 Parking Sensor Warning Device Display A0015422623
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BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 MID 9282286
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BMW F10 F20 F30 Reversing Camera ECU Control Unit Module 90847906
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BMW E60 E61 CCC CD Professional Navigation System Controller 6949171
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Volkswagen VW Passat B6 Fuse Box Relay Electrical Module Unit 3C0937125
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Mercedes W906 311 CDI 646.985 109HP Engine Unit Module ECU A6461500477 Manual
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Ford Transit Connect ECU Control Unit Impact Sensor Module Airbag 9T1T-14B321-BE
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Battery Relay Mercedes W211 CLS W219 Module Control Unit 12V A0025426419
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Mercedes CLK W209 Automatic Gearbox EGS Control Unit Module ECU A0325452332
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BMW E87 E90 N46 120i 320i 150HP Engine Unit ECU kit DME 7565300 CAS3 Key Manual
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BMW 3 6 X3 Series E46 E63 E83 MINI R50 R53 Control Unit Xenon Light 1307329074
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Part no. 6998485
Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Module Control Unit ECU 6998485
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Mini Cooper R55 R56 R57 CCC CD Navigation Sat Nav Head Unit 9170730
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Radio CD Player Mercedes W211 CLS C219 COMAND Navigation Head Unit A2118204497
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Part no. 7834160
BMW E60 M5 E63 E64 M6 S85 Alternator Generator 170A 7834160
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BMW F20 Driver Side Door Cable Harness Wiring 9335291
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Mercedes-Benz M-Class ML W163 Gearbox Transmission Control Unit ECU A0305454632
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Negative Battery IBS Cable BMW X5 F15 M F85 X6 F16 M F86 Terminal Wiring 6819309
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BMW X5 Series E70 ECU Body Control Module Junction Box High PL4 JBBFEII 9172364
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Radar Unit Mercedes W176 W205 W246 GLC C253 Front Bumper Sensor A0009058104
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BMW E60 E65 Petrol 530i 730i M54 Engine Control Unit DME 7527072 Automatic
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Ford Focus Mondeo Diesel Engine Alternator Generator Engine Unit 6G9N-10300-UD
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Airbag Module BMW X1 F48 F45 F46 Air Bag Control Unit ECU 9390576
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Part no. 04L903021G
Audi Q2 GA Diesel Engine Alternator Generator Assembly Bosch 04L903024T
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Part no. 8K0971228H
Audi A4 B8 3.0 TDI Starter Alternator Wiring Loom Cable Harness 8K0971228H
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Part no. 8512498-1
BMW X1 E84 20dX N47 177HP Engine Control ECU Kit DDE 8512498 Automatic
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Part no. 9843968
Screen Ring Mini F55 F56 F57 Navigation Display Head Unit Trim Cover 9843968
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Part no. 7810001-2
BMW E81 E87 LCI E90 118d 318d N47 143HP Diesel ECU KIT DDE 7810001 CAS3 + Key
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BMW E53 4.4i M62 286HP Engine ECU Kit DME 7508698 + EWS3 + Key Automatic
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Mini Cooper One R56 Footwell Light Module High EKS ECU PL3 FRM II 3452677
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BMW 7 Series E65 Dynamic Drive Pump Wiring Loom Harness ARS Valve Block 6907314
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BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8574095 Key FEM Automatic
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Audi Q7 4L Body Comfort Control BCM Onboard Supply Module Unit ECU 4L0910553L
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Part no. 80A915459
Audi Q5 FY Battery Positive Cable Clamp Control Module Terminal 80A915459
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Audi A4 B8 2.0 TFSI Petrol Engine Starter Motor 06H911021
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Audi A6 C6 Body Control Comfort Unit Module BCM Convenience Unit 4F0907279B
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Autoradio CD Player BMW E81 E82 E87 E88 E90 E91 E92 Radio Professional 9187108
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BMW E87 E90 CAS2 ECU Control Unit Module 61356943791 6943791
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BMW F20 F21 F22 F30 F31 F32 Radio Professional CD Player 9281519
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BMW E84 Footwell Light Module Control Unit ECU PL2 FRM3R 9224592
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Audi A4 B8 A5 8T Q5 8R Audio Amplifier Sound Module Control Unit 8R0035223H
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Mercedes W205 Ignition Control Unit A2139001223
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Ford Transit Starter Motor Engine 2033125
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Engine Module Wiring BMW F07 GT F10 F11 Diesel N57N Injectors Harness 7823755
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Bluetooth Module BMW E81 E87 E90 E91 LCI Combox Telematics 9257161
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BMW 1 Series E88 ECU Body Control Module H3 Junction Box PL2RR 9247474
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Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402
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Mini Cooper S F55 F56 Petrol B46C B48C Engine Wiring Cable Loom Harness 8678958
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Positive Cable Mercedes W906 Battery Starter Alternator Plus A9065403627
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Mercedes W204 Display Screen Information Navigation Dashboard A2049007408
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Mercedes W906 Door Module Front Left Right N/O/S Control Unit ECU A9069000501
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Mercedes W207 A207 SAM Control Unit Module Fuse Box Rear A2129004222
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BMW F45 F46 Mini F55 F56 F57 KaFAS Camera Front Lane Assist ECU Module 9393780
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Mercedes-Benz Vito W639 Radio Fan Adapter Control Unit Module A6398200942
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Audi Q3 8U Sat Navi Stereo Radio Audio Head Unit CD Player 8U1035192A
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Mercedes A238 Convertible Folding Top Roof ECU Module Control Unit A2389000501
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Part no. 7599881-19
BMW E87 LCI E90 E91 120i 320i Petrol N43 170HP ECU KIT DME 7599881 CAS3 + 2 Keys
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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 .