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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VW Volkswagen Crafter 1 Wiring Loom Harness Cable 2N0971068
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BMW Z4 E85 2.2i M54 170HP Engine Control ECU Kit DME 7541335 EWS3 + Key Manual
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Mini Cooper F54 F56 F60 JCW B48E 306HP Engine ECU Kit DME 5A4C367 BDC Key
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Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002
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BMW E60 E87 E90 120d 320d 520d M47N2 ECU Control Unit Kit DDE 7801711 CAS2 Key
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Audi A4 B8 Seat Exeo Servotronic Relay Control Unit 9 Pin 8E0907307F
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BMW E60 E90 523i 323i Petrol N52 177HP ECU Kit DME 7567178 CAS3 + Key Automatic
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Mercedes W204 C180 BlueEFFICIENCY M274.910 Engine ECU Kit A2749000700 Key
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Alternator Generator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102
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BMW F20 F21 F22 F30 F31 Engine Starter Motor N20 N26 N55 Petrol 7638194
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Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129005622
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Porsche Macan 95B Audi A8 D4 Starter Motor 12V DENSO 95860411300 06M911024
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Mercedes W204 Radio Control Function Button Knob Controller Unit A2048707658
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BMW E81 E87 LCI E90 118d 318d N47 143HP Diesel ECU KIT DDE 7810001 CAS3 + Key
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Audi A7 4G Front Camera Assistance Line Unit 4H0907217F
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BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6952986
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BMW X5 E70 Front Seat Control Unit Module ECU Left Right N/O/S 9149834
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BMW F20 F21 F30 F31 Driver Assist ACC Lane Change Switch Button Panel 9268478
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Head Unit Mercedes SLK R172 Radio Media Sat Nav Unit Switch Panel A1729000814
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Peugeot Expert Citroen Berlingo Diesel Engine Alternator Generator 5705AS
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BMW F45 F46 Mini F55 F56 F57 Parking Assistant PDC Control Unit Module 6805061
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BMW E81 E87 E91 Switch Cluster Steering Column Wiper Stalk 6962678
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BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8574351 CAS3 Key Automatic
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Audi A3 8P Boot Trunk Subwoofer Rear Bass Speaker 8P3035382E
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Radio Head Unit Ford Transit Connect 6000 CD Media Player Unit 6C1T18C815AH
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Audi S3 8V Module BCM Body Control Unit Module ECU 5Q0937084CP
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Display Screen Mini F55 F56 F60 Multimedia Navigation Sat Nav Unit 6,5" 8803370
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Mini F55 F56 PDC Parking Distance Sensor Module Control Unit ECU 9366920
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Footwell Module BMW E93 Light Control LCM PL2 FRM II 9166708
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Audio Amplifier BMW F20 F21 F22 Harman Kardon Active Sound Design Unit 9390396
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Skoda Octavia 5E Sat Navi Stereo Radio Audio Head Unit Player Screen 5E0919605J
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ABS Sensor Mercedes W211 C219 Front Brake Wiring Harness Right O/S A2115400006
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BMW 3 Series E87 LCI Footwell Light Module ECU Control Unit LED XE FRM 9204536
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059003729
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Mercedes W169 W245 Sam Control Module Fuse Box Unit A1699010100
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Mini R56 Head Unit CCC Navigation Navi Sat Nav Controller R55 R57 9159045
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Radio Player BMW F10 F11 F20 F21 F25 F30 F31 Alpine CD Champ 2 Head Unit 9298939
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Door Module Mercedes W205 W213 C253 Control Unit Rear Right O/S A1679003718
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BMW E81 E87 LCI E90 118d 318d N47 Diesel ECU KIT DDE 7811701 CAS3 + Key Manual
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Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2048204697
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AUDI Q7 4L Lane Assist Module Blind Spot 4L0907566A
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Mercedes W169 W245 CD Player Radio Audio Head Unit Player A1698205189
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Audi S3 8P Body Control Comfort Unit Module BCM Convenience Unit 8P0959433C
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Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102
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Mini Cooper R56 SPEG PL3 M2 SPEG Fuse Distribution Box 3453736
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Mercedes S205 Estate W213 W222 Towing Hitch Trailer Hook Module Unit A2139009216
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BMW 1 3 X1 Z4 Series E81 E87 E88 E89 E90 E91 E92 E93 Radio Business CD 6952296
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715451001
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BMW F20 F21 LCI M140i B58 Petrol ECU Control Unit Module DDE 8689723 Automatic
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Audi RS4 B8 Starter Motor Petrol Engine Electrical Unit Actuator 079911021G
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BMW E60 E90 X5 E70 3.0sd 335d 535d M57N2 Engine ECU DDE Kit 7810980 Automatic
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BMW E90 Body Control Module BCM ECU Junction Box Footwell 6135 9176880
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Audi TT FV Entry Keyless Kessy Control Module Unit ECU 3Q0959435B
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BMW E60 LCI Saloon Light Control Module Unit Lear LM II E6X LWR 9180756
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BMW X6 71 Amplifier HiFi Stereo System Sound 9312471
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Navigation Head Unit BMW F20 F21 F30 F31 LCI F32 Radio CD Player High 2 9867503
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Mini Cooper Convertible R57 Fuse Box Electrical Control Unit 3450646
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Head Unit BMW F07 GT Car Infotainment Computer Sat Nav Multimedia DAB 9275510
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MINI One R50 R52 W10 90HP Engine Control Unit ECU Module DME 7557395 EWS Manual
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VW Volkswagen Polo 6R Air Module Bag Control Unit 6R0959655K
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Part no. A1769001101
Mercedes W176 W246 Comfort Module Central Gateway Control Unit VST A1769001101
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Audi Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B
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BMW 1 3 Series E81 E87 LCI E90 116i 316i N45N ECU Kit DME 7567321 + CAS3 + Key
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Mercedes W207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900
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Audi A3 S3 8P Headlight Range Module Xenon Lamp Control Unit ECU 8P3907357B
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BMW F30 F32 F36 335dX 435dX N57Z 313HP Engine ECU Unit Kit DDE 8578082 Key FEM
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Audi Q7 4M Gateway Interface Control Unit Module ECU 4KE907468F
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Mercedes W220 Headlight Head Lamp Control Module Unit A2208203685
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key Lock
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Mini One R56 LCI R60 90HP Diesel N47N Engine ECU Kit DDE 8506666 + CAS3 + Key
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Mini One R56 LCI N16 1.6 98HP Engine Control Unit Module ECU DME 8617050 Manual
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Ford Transit Mk7 Diesel Engine Alternator Generator Unit 2.2 TDCi 6C1T-10300-BD
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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BMW E60 E61 LCI E81 E82 E84 E87 LCI E90 E91 N47 Diesel Starter Motor 7798006
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BMW E60 LCI E87 E90 120d 320d 520d N47 177HP ECU KIT DDE 7811700 CAS3 Key Manual
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Navigation Head Unit BMW E81 E87 E90 LCI Car Computer Sat Nav CIC 9273188
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Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907064EC
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Peugeot Boxer 2.2 HDI Diesel Engine Wiring Cable Loom Harness BU3T-12B637-CCB
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Battery Clamp VW Golf 8 CD1 Audi A3 8Y Battery Base Bracket Holder 5Q0803219C
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Mercedes W203 Fuse Box SAM Control Unit Module Relay A2035454501
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Mercedes W447 W907 W910 Engine Control Unit Module ECU A6549009400
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Mercedes SLK R171 Roadster Fuse Box Control Unit SAM Module Relay A1715451301
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Engine Wiring BMW i3 I01 Hybrid Rex Sensors Cable Loom Harness 7647591
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Part no. 7595179-3
BMW E81 E87 LCI E90 N43 118i 318i Petrol ECU Kit DME 7595179 CAS3 + Key
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Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519003203 Manual
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BMW 3 Series E93 ECU Body Control Module H3 Junction Box PL2 JBBFE II 9160190
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Ford Transit Connect 1.8 TDCi Engine Control ECU Module Manual AT1112A650BD
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Volkswagen Golf CD1 Alternator Engine Generator Valeo 05E903018G
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Mini Cooper S R55 R56 LCI N18 1.6 184HP ECU Kit DME 7619333 + CAS3 + Key Manual
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BMW F01 F10 CIC Professional Sat Nav Infotainment Radio Head Unit 9239155
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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 .