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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Seat Ibiza 6J Central Body Comfort BCM Interface Module 6C0937089D
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*Mercedes-Benz A-Class W169 Body Control Unit Module SAM A1695405545
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Audi A3 8P Sat Navi Stereo Radio Audio MMI Head Unit CD Bosch Unit 8P0035152F
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BMW E81 E87 E90 E91 LCI 118d 318d N47 Diesel ECU KIT DDE 8506375 CAS3 + 2 Keys
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BMW E82 E88 Cabrio 125i N52N 218HP ECU Kit DME 7587164 CAS3 Key Manual
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BMW E90 E92 Steering Switch Cluster Column Indicator Wiper Stalk 9123041
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BMW X5 Series E53 Onboard Computer System Monitor Cassette Player 8378943
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Audi A7 4G Rear Reversing Camera Module View Camera Control Unit ECU 4G0907441B
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Audi TT Mk3 8S 2.0 TDI CUNA 184HP Engine Control Unit ECU 04L907309A Manual
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Gateway Module Audi A3 8P Volkswagen Tiguan Central Control Unit ECU 7N0907530J
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BMW F10 F12 F13 M5 M6 S63N 560HP ECU Control Unit Module DDE 7633959 Twin-Clutch
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BMW E90 E91 LCI E92 Professional Navigation Sat Nav CIC Head Unit 9257187
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High Voltage Inverter BMW i3 I01 Electric 60Ah Electrical Machine Electronics
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BMW F20 F21 F30 F31 Fuel Pump Control Unit Module 7374942
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Audio Amplifier Mercedes W205 W222 GLC X253 Sound Burmester Unit A2229004511
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Door Module Mercedes W205 Front Right O/S Door Control Module Unit A2059000628
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BMW X3 X5 Series E53 E83 PDC Parking Distance Control Unit Active Module 6921414
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Mercedes ML W166 Fuse Box Front Relay Control Unit Module A1665402450
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PDC Wiring BMW E81 E82 E87 LCI E88 Front Bumper Loom Cables Set 9283693
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BMW F20 F21 LCI F22 M140i M240i B58 340HP Engine ECU KIT DME 8740344 FEM + Key
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Mercedes W205 S205 W447 Seat Module Front Memory Control Unit A2059004607
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BMW F20 125d F30 325d N47S1 218HP Engine Control Unit ECU DDE 8579785 Automatic
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Audi A5 8T Body Comfort Control BCM Onboard Supply Module Unit ECU 8K0907063P
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VW Volkswagen Golf Mk7 Multimedia MMI Sat Nav Radio Display Screen 3G0919605D
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BMW E60 E63 E64 E90 LCI Dashboard Dash Onboard Display Monitor Screen 8.8"
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Module Mercedes SLK R171 Automatic Transmission Control Module A0005457916
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Audi A5 8T 3.0 TDI CCWA 240HP Quattro Engine ECU Kit Ignition + 2 Key 8R0907401J
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Control Unit Seat Ibiza 6J VW Polo 6C 6R Air Module Unit ECU Bosch 6C0959655J
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BMW X3 Z4 E83 E85 CID Control Unit CD Player Radio Audio System 9197131
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Mercedes W204 Fuse Box Grouping Fuse Placement Map Card Diagram A2045842982
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BMW E90 LCI Footwell Light Module Control Unit ECU FRM3R LED PL2 9249085
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VW Golf Audi A3 8P 2.0 TDI Diesel Engine Starter Motor 02M911024G
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BMW 5 E60 E61 Front Door Wiring Loom Harness Passenger Side 6966555
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Mini Cooper S R55 R56 LCI R60 N18 1.6 184HP ECU Engine Module 7619333 Manual
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Part no. 9287535-1
Key Reading Module BMW E60 E61 E81 E87 E90 E91 CAS 3 ECU Control Unit 9287535
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Mercedes W639 109 CDI OM646.980 95HP Engine Unit ECU Kit A6461501177 Key Lock
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BMW E60 E61 535d M57N Engine Control ECU Kit DDE 7796678 + CAS2 + Key Automatic
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BMW E93 LCI ECU Body Control Module H3 Junction Box PL2RR JBBFE IIIR 9247474
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Mercedes W906 Right O/S Wing Door Mirror Wiring A0008271378
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BMW E60 E90 325i 525i N53 218HP ECU Kit Control Unit DME 7588620 CAS3 Key Manual
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PDC Parking Sensor BMW F20 F30 F82 Ultrasonic Sensor Estoril Blue Metallic B45
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BMW E70 E90 E91 E92 DVB-T TV Tuner Module Control Unit Video FUBA 9240643
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BMW 3 Series E93 LCI Footwell Xenon Light Control Module Lear FRM3R PL2 9240528
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BMW 5 Series E60 E60N E61 E61N LCI Rollover Battery Protection 6927100
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BMW F20 F30 F45 LCI 118d 218d 318d B47 150HP Engine Control Unit ECU DDE 8473185
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Mercedes ML W164 Rear SAM Module Control Unit Fuse Box A1645400701
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Mini Cooper One R57 Footwell Light Module High EKS ECU PL3 FRM3R Lear 6827072
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BMW E81 E87 E90 LCI 118d 318d N47 ECU Engine Control Kit DDE 8506434 Automatic
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Part no. Halfords 76Ah Accumulator-1
Halfords 12V Calcium Accumulator Battery 76Ah 680A HCB096
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BMW G30 Lid Boot Hatch Trunk Tailgate Smart Opener Control Unit Module 5A74F44
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Mini Cooper R57 PL3 SPEG H4 Fuse Distribution Box 3455533
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Part no. VARTA Blue Dynamic 95Ah Accumulator
VARTA Blue Dynamic Accumulator Battery 95Ah 800A 12V G3
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BMW X5 E70 X6 E71 Junction Box Body Control Module Electronics Unit 9172367
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Mercedes W164 Fuse Box Holder A1645402972
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Mini Cooper S R53 W11 170HP Engine ECU Control Unit DME 7553735 Automatic
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BMW X6 Series E71 ECU Body Control Module Junction Box PL4 9227172 61359227172
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Radio Player Pionieer DEH-3400UB CD USB ipod mp3 Player Unit 50W x4
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Parking Brake Module BMW F10 M5 F12 F13 M6 Control Unit Lock Module 2284105
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Mercedes R172 Head Unit Radio CD Player Audio A1729005507
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Mercedes W205 SAM Module Front Body Comfort Control Unit ECU A2059006330
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BMW E87 E90 E91 E92 E93 Diesel Alternator Valeo 150A Diesel 7790548
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BMW E81 E84 E87 E90 LCI 18d 118d 318d N47 ECU Kit DDE 8506434 CAS3 Key Automatic
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Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A A0009067900
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BMW F20 F21 F30 F31 N13 114i 116i 118i 316i Petrol Engine Starter Motor 7638193
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Navigation A2129008716
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BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key
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Mercedes Sprinter W906 Central Lock Locking Control Unit Module ECU A9069005501
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Radio Professional CD BMW E81 E82 E87 E88 E90 E91 E92 E93 Audio Player 9283702
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BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8638198 Automatic
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SD Card Reader Mercedes W213 S213 Multimedia USB Port Socket Module A2058200526
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Engine Wiring BMW F80 M3 F82 F83 M4 S55 Loom Module Harness Cable 7848467
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BMW E90 E91 E92 335i N54 306HP Petrol Engine Control Unit DME 7583332 Automatic
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Renault Clio 2 Radio CD Player Stereo Head Unit 8200057681B
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BMW F45 Mini F55 F56 Head Unit Basic Media DAB Headunit 9381320
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BMW F30 Body Control Module Unit ECU 6824384
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BMW 5 Series E60 E61 Radio M-ASK M-Audio System Controller CD Player 6955348
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BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6945144
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Part no. 7615981-4
Mini Cooper R55 R56 LCI 1.6 N16 122HP Engine Unit ECU DME 7615981 2 Keys CAS3
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Mercedes CL203 220 CDI 646.963 150HP Engine ECU Unit A6461509777 Automatic
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Mercedes W169 A150 M266.920 95HP Engine Control Unit ECU A0024463140 Automatic
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USB SD Card Module Mercedes C205 W213 Multimedia Reader Port Socket A2138200400
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BMW 3 5 X5 Series E39 E46 E53 3.0i M54 Generator Alternator 120A VALEO 7501593
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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 .