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 Cooper R55 R56 IBS Negative Battery Lead Cable
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Mercedes CLK W203 C209 Negative Battery Terminal Cable A2035400231
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BMW E60 E81 E87 E90 E91 E92 CAS 3 ECU Control Unit Key Reading Module 6943834
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Gateway Module BMW F11 LCI Central Control Unit Lear ZGW-02 4SK 9380239
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BMW E87 LCI E90 N43 118i 318i Petrol ECU Kit 7595179 DME CAS3 + 2 Keys Automat
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BMW Z4 Series E85 6-disc CD Changer Without Magazine 6946990
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Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069006102
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VW Passat Variant PA 1.6 TDI Diesel Blue Motion Engine Control ECU 03L907425C
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BMW X5 Series E53 GM III General Body Control Module Unit ECU Lear 6913528
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Starter Motor VW Golf GTI Audi Seat Skoda Petrol CJX CHHA Bosch 1.1KW 02E911024B
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Audi A4 B9 Camera Control Module Unit ECU 8W0907428C
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Audi TT FV Navi SD GPS MMI Multimedia Head Unit Module 8S0035021B
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BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186664
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BMW E81 E87 E90 LCI Top Hifi System Amplifier Logic 7 L7 Harman Becker 9218086
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Audi Q5 8R Body Control Module ECU Control Unit 8K0907064KG
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BMW 5 6 E60 E63 LCI Body Control Module ECU Control Unit KBM Basis 6957528
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Telematics Module BMW E81 E87 E90 E91 E92 LCI Combox Navigation 9234942
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005903
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE CAS 3 Key 7811702 Manual
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BMW 3 Series E90 320si 173HP DME 7560955 Petrol N45 ECU Kit CAS2 + Key Manual
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Gateway Control Unit Mercedes W204 W212 Gateway Module ECU VST A2129001227
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BMW X5 X6 Series E70 E71 Transfer Box Control Unit Module ECU 7605031
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BMW E87 LCI E90 118i 318i N43 143HP ECU KIT DME 7599881 CAS3 + Key Automatic
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BMW E60 LCI E90 325d 525d M57N2 197HP Engine ECU Unit DDE 7809941 Automatic
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Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803
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Air Bag Module BMW E65 E66 Sensor Rear Seat Airbag Control Unit ECU 6960226
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BMW X3 X5 E53 E60 E61 E65 E83 Power Steering Speed Sensor 6762235
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BMW E90 E91 LCI N47N 318d 143HP Engine ECU Kit DDE 8510832 + CAS3 + Key Manual
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Diversity Antenna Amplifier Mini F57 Convertible DAB Module Unit 9309991
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BMW E46 320d Diesel Engine M47N 150HP ECU Kit DDE 7791190 EWS3 + Key Automatic
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BMW E39 E46 X5 E53 X3 E83 EWS IV Control Unit Modul 6988104
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Display Screen Peugeot Partner Expert Multifunction Dashboard Clock 9665614680
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BMW X3 F25 20dX 190HP B47 Engine Control Unit Module ECU DDE 8588946 Automatic
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Audi A3 8V Front Impact Sensor Crash Detection Module Unit 5Q0959651B
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Alternator Generator Mercedes W203 W204 M271 Engine Valeo 120A 14V A2711541402
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KIA CEED I 1.6 CRDI Diesel Engine Control Module ECU 39120-2A051 Manual
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BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8603352 Automatic
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Mini Cooper One R57 Footwell Light Module High EKS ECU PL3 FRM3R Lear 6827072
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Tailgate Lift Module BMW F31 F36 Mini F60 Trunk Control Unit Rear ECU 7481616
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Mercedes-Benz W245 Front Bumper Parking Distance Sensor Parktronic Kosmos Black
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Audi A1 8X Multimedia Radio CD Player Navigation Head Unit 8X0035183F
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BMW F33 F83 M4 Convertible Neck Warmer Control Unit Heater Module ECU 7427905
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BMW E60 E90 E91 X5 E70 Mini R56 FBAS Video Control Unit TV Tuner Module 9206973
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Audi A5 F5 45 TFSI DKNA Body Control Module BCM Unit ECU 8W0907063DG
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£Mercedes W212 E220CDI OM651 Diesel Engine Control Unit Module ECU A6519005301
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BMW E88 Cabrio Hydraulic Pump Convertible Folding Top Roof Unit 7171303
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Audi Q5 8R Reversing Camera ECU Control Unit Module 8R0907441A
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BMW E60 Air Module Control Unit Gateway Sensor B Pillar Right O/S 6942100
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BMW E60 E61 E90 E91 On-board Navigation Display Monitor Screen 6,5" 9179808
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Mercedes CL203 W203 Battery Terminal Fuse Box Control Unit Module A2035450803
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BMW X3 Series E83 LCI Front PDC Ultrasonic Parking Sensor Black 9270500
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Mini Cooper R56 Automatic Gearbox Basic Control Unit EGS 7574294 7571340
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Mercedes-Benz S-Class W220 Aerial Roof Antenna Shark Radio A2208201475
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On-Board Screen BMW F10 F11 LCI Central Information Display 10,25" 9321016
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Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2045404150
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Mercedes ML W163 270 CDI Engine Control ECU Kit Key Automatic A6121536379
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Mini R55 R56 R57 R60 Gearbox Module Control ECU Automatic Unit 7619713
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Mercedes W203 W211 Kompressor M271 Petrol Engine Starter Motor A0051513901
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Battery Cover Citroen Berlingo Peugeot Partner Tray Holder Housing 9663615380
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Volkswagen Sharan 7N Sliding Door Locking Catch Plate Left N/S 7N0843639
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Mercedes CLA C117 W166 Head Unit Sat Nav Navigation Display Screen A1669001420
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Mercedes W221 Hood Bonnet Light Solar Sensor Module Unit A2118701310
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Audi Q7 4L Air Module ECU Sensor Control Unit 4L0910655D
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BMW X1 E84 2.0dX N47 177HP Engine ECU Kit DDE 8510591 CAS3 + Key Automatic
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Mercedes W901 OM602 Ignition Lead Electrical Cable Harness A9015407309
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BMW X5 E70 Telematics Bluetooth Control Unit Module ECU Continental 9205930
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Mercedes-Benz W639 Fuse Box Relay Control Unit Electric Module SAM A6395450101
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Display Screen BMW E60 E61 E90 LCI 8.8" Monitor Sat Nav 9193745
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BMW E90 E91 LCI N47N 320d ECU Kit Basic DDE Control Unit 8512047 + CAS3 + Key
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Mercedes-Benz ML W163 270 CDI Engine Control ECU Kit A6121533279 Key Automatic
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Motor Engine Starter Mercedes R172 W204 C207 W212 M271 Petrol A0061517201
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Mini Cooper R50 R52 R53 W10 1.6 Petrol Engine Starter Motor 7570488
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Mercedes Sprinter W907 314 CDI OM651.958 143HP ECU Engine Unit A6519003603
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BMW 1 Series E88 ECU Body Control Module H3 Junction Box PL2RR 9247474
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BMW E46 E85 E87 E90 Petrol Alternator Generator BOSCH 110A 7532964
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BMW 5 Series E60 E61 Radio M-ASK M-Audio System Controller CD Player 6955348
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BMW E60 E61 Radio Player M-ASK M-Audio System Controller CD Head Unit 6983843
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BMW 1 3 5 Series E60 E61 E87 E90 E91 M47N2 M57N2 Starter Motor 7798035
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Audi A4 B7 Cabriolet Roof Motor Wiring Harness Wiring Loom 8H0972387
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Head Unit Mercedes SLK R172 Radio Media Sat Nav Unit Switch Panel A1729000814
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Ford Transit Connect Mk2 Diesel Starter Motor 8V21-11000-AE
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Mini R52 R53 Battery Cable Wiring Lead Positive Plus Pole 6942507
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BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9237047
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Mercedes-Benz Vaneo W414 Radio Aerial Antenna Amplifier Module Unit A4148200089
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Mercedes-Benz A B W169 W245 Starter Alternator Wiring Loom Harness A1694403805
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BMW E88 ECU Footwell Light Module Control Unit PL2 FRM II Lear 9197161
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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 .