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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Audi A5 8T Head Unit Multimedia Screen Display CarPlay Infotainment Unit
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BMW 1 3 Series E87 E90 E91 E92 Seat Control Unit Module ECU 9134662
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Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A A0009067900
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Mercedes-Benz A-Class W176 Mikrophone Roof Control Module A2468200035
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BMW E87 E90 118i 318i N43 Engine Control Unit Module ECU DME 7580279 Automatic
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BMW X3 Series E83 LCI Diesel Battery Positive Lead Red Cable Plus Pole 3452235
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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Bracket Mount 8200527320
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Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924
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Relay Mercedes W124 E280 Fuse Box Light Control Relay A1265420332
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BMW E90 E91 Central Locking Lock Immobilizer Control Unit Module ECU 7233914
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Audi Q5 FY Rear Boot Trunk Lid Tailgate Control Unit Module ECU 8W8959107B
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Mercedes CLS W219 Door Module Front Left N/S Control Unit Module A2198202326
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BMW Mini Cooper One R50 DME Petrol Engine Control Unit ECU Automatic 7514587
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BMW E60 LCI Light Control Module Unit Controller Lear LME6X AHL 9154944
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Mini Cooper One R55 High SPEG DC/DC H3 Fuse Distribution Box 3451927
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Mercedes C207 E250 CDI BE OM651.911 Engine Unit Module ECU Kit A6519005301 Key
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VW Golf Audi A3 8P 2.0 TDI Diesel Engine Starter Motor 02M911024G
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Mini One D R56 LCI N47N 90HP Diesel Engine ECU Kit DDE 8519663 + CAS3 + Key
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Radio Business BMW E81 E87 E90 LCI CD Player 9229240
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Audi A6 C7 Board Supply Comfort BCM Body Control Module Unit ECU 4H0907063CF
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Dashboard Wiring BMW G30 G31 Front Centre Console Loom Harness 9366338
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BMW E81 E87 E90 E91 E92 LCI Parking Control Module Unit PDC 6982395
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BMW E60 E61 E90 E91 E92 N52 325i 525i Engine Control Unit ECU DME 7577968 Manual
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BMW E88 Cabrio Footwell Light Module Control Unit ECU PL2 FRM II 9197163
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Mini R56 LCI One 55kW N16 1.6 75HP Engine ECU Kit DME CAS 3 + Key 7620987
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Mini R55 R56 R57 LCI N12 N14 N16 N18 Engine Alternator Generator Petrol 120A
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BMW Mini Cooper One R56 Cover Multifunction Box Right O/S 2752524
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BMW E87 LCI E90 E91 N47 DDE 7811701 Engine Control Unit Diesel ECU Automatic
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Mercedes W166 Head Roof Curtain Right O/S Side Air Module A1668600602
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Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705
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BMW X5 Series E53 3.0d M57N 218HP ECU Kit DDE 7800131 EWS3 + Key Automatic
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BMW F20 F21 F30 F31 F32 F34 LCI Starter Motor Bosch B48 Petrol 8621838
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BMW 3 6 X3 Series E46 E63 E83 MINI R50 R53 Control Unit Xenon Light 1307329074
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Volkswagen Touareg 7L Onboard Supply Comfort Unit Module Unit ECU 7L6937049M
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Door Module Mercedes GLC X253 Rear Door Left Control Module A2059000828
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Camera Module Bracket Mercedes W213 S213 Rear Housing Left N/S A2135451540
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Communication Module Mercedes W177 W205 W213 X253 Hermes LTE Unit A2389008601
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Audi A7 4G8 ESP Yaw Rate Module Control Unit Sensor ECU 4G0907637K
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Ford Transit Connect Rear Door Wiring Cable Harness Loom FT1T14027LLC
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Mercedes CLK C209 Rear Body Control Module Unit BCM ECU A2098205226
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Audi A1 8X Bluetooth Interface CarPlay MMI Retrofit Multimedia Unit Set MMI2G
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BMW F80 M3 F82 F83 M4 431hp Engine Control ECU Kit DME 8695512 + FEM Module Key
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Alternator BMW E87 E90 E91 E92 Generator Valeo 150A Diesel 7797519 7799180
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BMW F01 F02 F10 F11 CD Radio Head Unit CIC 9289247
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Fuel Pump Control Mercedes C118 C167 W177 W247 Module ECU Receiver A0009008214
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Audi A6 C7 3.0 TDI CLAA Alternator Generator Engine Unit Hitachi 059903018R
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Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386
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BMW 3 5 6 Series E60 M5 E64 M6 E90 E93 M3 Accelerating Sensor
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Engine Starter BMW F20 F21 F22 F30 F32 N47N Diesel Motor Apec 0986024980
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Mercedes-Benz SLS ML G C197 W164 W463 Relay Fuse 5-Pin Green Hella A0025427619
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Radar Sensor Mercedes W176 W207 W246 Front Control Unit Module A0009052804
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Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC
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Mini F55 F56 F57 Visual Boost Surround Central Cover Instrument 9388224
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Audi Q2 GA Front Parking Sensor Assist Control Module Arrow Grey Z7W 5Q0919275B
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Mercedes-Benz M ML W163 Battery Positive Plus Terminal Lead Cable A1635401630
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Third Stoplamp Cover BMW F30 F80 M3 Rear Stop Lamp Brake Trim 7259877
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Light Module BMW E90 LCI ECU LED NSW Control Unit PL2 FRM II 9204532
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Audi TT FV Air Module ECU Control Unit Crash Sensor 5Q0959655P
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VW Volkswagen Polo 5 1.2 TDI Engine Wiring Harness Loom Cable 03P971612
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BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6945144
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Seat Module BMW F10 F11 Front Left N/S Control Unit SM MF/M - HL 9248565
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Audi A3 8P Rear Bumper PDC Parking Sensor Wiring Harness Loom 8P0971085A
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Volkswagen Tiguan 5N Golf Mk5 Alternator Generator Diesel Power 03L903024M
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BMW E46 E89 Mini R50 R52 Parking Control Module Unit PDC 9119428
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Mercedes W246 Air Module Control Unit ECU Module A2469000709
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BMW E46 Radio Business Cassette Player Audio Control Head Unit 6902659
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Parking Sensor Mercedes W169 W245 PDC Distance Control Unit Module A1699007400
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Earth Ground Cable BMW F10 N47N Diesel Battery Cable Engine Wiring 8517616
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BMW E81 E82 E87 E88 E89 E90 E91 E92 Radio Professional CD 9187108
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Vauxhall Opel Combo Positive Battery Cable Lead Wire Cabling 51919499
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BMW X5 E70 3.0d M57N2 235HP Engine ECU KIT DDE 7809944 CAS3 + Key Automatic
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BMW F06 Footwell Light Module Control Unit ECU FRM3 6992947
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Mini Cooper One R50 R53 Radio Boost CD Player Unit Head 6921965
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Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469008214
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BMW F01 F02 LCI F07 GT Control Unit Module Voltage Transformer VSU400 9247159
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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 .