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 A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907063N
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VW Volkswagen Transporter T5 1.9 TDI Diesel Engine Control Unit ECU 038906016AJ
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Audi S5 8T Amplifier Speaker Bang & Olufsen Control Module Unit 8T0035223AN
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Mercedes SLK R171 Front Fuse Box SAM Relay Control Unit Module A1715450901
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Seat Module Mercedes W176 W246 Front Left N/S Memory Control Unit A1669008606
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BMW F22 F32 F36 Body Control Comfort Module Unit 8707676
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Starter Motor Mercedes Sprinter W906 OM651 Diesel Engine 0986021360
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Air Module BMW X5 F15 X6 F16 ECU ICM Control Unit 6870277
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MINI One R50 R52 W10 90HP Engine Control Unit ECU Module DME 7557395 EWS Manual
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BMW E91 ECU Body Control Module H4 Electronic Box 61359177987 9177987
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Audi A4 B7 Door Harness Loom Cable Wiring Rear 8E1971687L
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Navigation System BMW X3 E83 Z4 E85 Mini R50 R52 DVD GPS Computer Unit
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BMW F07 F10 F11 Alternator Generator 220A Valeo N47N Diesel Engine 8507625
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Mercedes W211 Door Module Front Left N/S Driver Control Unit ECU A2118208185
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Starter Motor Ford Transit 2.4 TDDi Diesel Engine 1S7U11000BC
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Amplifier DAB Mercedes W176 W204 W212 Control Unit Module ECU A1669007616
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Mini Cooper R56 Footwell Light Module ECU LOW EKS Lear PL3 FRM II 3453744
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BMW 5 7 Series E60 E65 Front Seat Flexible Shaft And Transmission Bracket Set
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Mini Cooper D R55 R56 Diesel W16 1.6 109HP ECU Kit DDE 7809794 CAS3 + Key Manual
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Mercedes-Benz A-Class W168 Fuse Box Unit Holder Bracket Frame A1685453340
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Body Control BMW F22 F23 F30 F32 F33 F36 BCM Module Unit ECU 9868384
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BMW F11 Touring Light Control Footwell Module Unit ECU FRM III 9273628
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BMW E46 316i M43 Petrol Engine Wiring Harness Engine Module Wiring 1439874
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BMW E90 E91 LCI 318d Engine N47N 143HP ECU Kit DDE 8510832 CAS3 Key Automatic
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BMW 5 Series E60 Light Control Unit Module LEAR LM E6X MIT AHI 6983539
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Mercedes CLK W202 W208 Battery Negative Earth Cable Wiring A2025400231
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BMW 1 3 Series E81 E87 E90 Hands-Free Electronics Charging Module MULF 9111718
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BMW X5 E70 X6 E71 Safety Control Unit Air Module Bag ECU Bosch 9240083
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BMW E92 LCI Footwell Xenon Light Control Module Lear FRM3R PL2 9263798
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BMW F40 Fuse Relay Power Distribution Box Unit 5A323C8
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BMW F10 F11 Seat Loom Cable Lordosis Lumbar Pump Control Front Right O/S 9230617
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BMW E81 E87 LCI E90 E91 Petrol N43 Alternator Generator 170A Denso 7550468
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BMW E81 E87 LCI Board Monitor Central Information Display 6,5" 9193753
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BMW 1 Series E82 E88 Rear Bumper Wiring Loom PDC Harness 9182571
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Mini Cooper One R56 Footwell Light Module High ECU PL3 FRM II 3448901
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Mercedes W212 Radio Head Unit COMAND Navi CD DVD Player Control Unit A2129068800
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PDC Parking Sensor BMW F20 F21 F30 Ultrasonic Front Tiefseeblau Deep Sea Blue
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BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9134483
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 + CAS3 + Key Manual
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Pioneer SPH-DA120 Head Unit Apple Carplay Android Auto Bluetooth Media Player
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BMW F83 Camera Kafas Front Windscreen Camera 9281714
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Mercedes W124 M103 Alternator Generator BOSCH 14V 70A A0131541002
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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000300
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BMW Mini Cooper One R56 Footwell Light Module LOW ECU PL3 FRM II 3450938
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Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R
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BMW F01 LCI Facelift Footwell Module Unit LED TEMIC FRM III 9285930
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Mercedes C207 Door Module Rear Left N/S Control Unit ECU A2079003700
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Pedestrian Protection Mini F55 F56 F57 Tube Impact Crash Sensor Module 5A2A040
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Mercedes-Benz C CLK Class W203 W209 Airbag Control Unit Module ECU A0018209726
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Audi Q2 GA 35 TDI DTTC 150HP Quattro Engine ECU Kit 05L907309B Ignition + Key
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BMW 1 3 5 Series E87 LCI E90 E60 Hands Free Bluetooth Module High MULF2 9178898
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Audi A4 B7 4.2 BBK Petrol Engine Alternator Generator 079903021E
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Fuse Box Mercedes W204 Front Relay Control Unit Module SAM A2129006624
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Navigation Head Unit BMW F10 F11 F31 Harman Sat Nav Unit 9290358
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Mercedes W207 A207 W212 Digital Satellite Radio Control Unit A2229009211
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Peugeot Boxer Citroen Relay Engine Starter Motor Diesel Valeo 9646972280
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Fuse Box Mercedes C118 W177 W247 Battery Relay Terminal A1775404107
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VW Volkswagen Touran TDI Diesel Engine Control Unit ECU 03G906021MP
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BMW 1 Series e87 ECU BODY CONTROL MODULE H2 61359131778 9131778
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Mercedes W212 Engine Alternator Generator A0009062100
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Fiat Doblo 1.9 JTD Engine Ignition Coil Wiring Harness 1439207
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BMW E81 E87 E90 LCI 118d 318d N47 ECU Engine Control Kit DDE 8518167 Manual
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Mercedes Sprinter W907 314 CDI OM651.958 143HP ECU Engine Unit A6519003603
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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 .