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 TT 8N Battery Fuse Box Power Distribution 8N0937550A
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Mini Cooper F55 F56 Control Unit Module Active Sound Design Amplifier 6827161
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Audi A4 B7 A6 C6 Alternator Generator 1.9 TDI Diesel 06F903023HX
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BMW X5 X6 E70 E71 Negative Battery Cable 9215954 61129215954
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126
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BMW E92 Driver's Seat Memory Wiring Cables Loom Harness 6943523
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Toyota RAV4 2.0d 1CD-FTV Diesel Engine Control ECU Manual Gearbox 89661-42A10
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Mercedes W213 M274 Petrol Three Phase Engine Alternator Generator A0009067703
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BMW E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9251487
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Mini Cooper S R55 R56 R57 N14 1.6 174HP ECU Kit DME 7641003 CAS3 + Key Manual
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Mercedes W906 Fuse Box SAM Module Control Unit ZGS Temic A9069006303
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Audi A4 B8 A5 8T Q5 8R Quattro Alternator Generator 2.0 TDI 03L903017
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BMW 5 7 Series E60 E61 E65 Front Passenger Seat Angle Adjustment Drive 9146329
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Mercedes W246 B180 CDI 651.901 109HP Engine ECU Kit A6519007600 Ignition + Key
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BMW E60 Light Control Unit Module LCM LM E6X MAN. LWR Lear 6983536
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BMW 3 Series E92 N52N 325i 218HP ECU Kit DME CAS3 + Key 7567362 Manual
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Audi A4 B9 A5 F5 Q7 4M Q5 FY VW Volkswagen Touareg Mk3 Starter Motor 057911024
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Mercedes W202 C208 W208 Alarm Sensor Module Unit A2088206010
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Alarm Sensor BMW E84 E91 Ultra Sonic-Module System Control Unit 9260874
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BMW E65 E66 Dashboard Control Display Screen 8,8" Control Unit 9130563
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Sam Module Mercedes S205 Relay Fuse Box Rear Control Module In Trunk A2059007437
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BMW E87 LCI E90 120i 320i N43 170HP ECU Kit DME 7579142 CAS3 Key Automatic
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Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003702
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CAS4 Module BMW F01 F10 F11 Key Reading Control Unit 9257036
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Audi A1 8X A3 8P Q3 Mk1 Diesel Engine Starter Motor 02M911024P
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Audi Q5 8R Rear Bumper PDC Parking Sensor Wiring Harness Loom 8R0971104CC
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511502790
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Audi A4 B8 A5 8T Q5 8R Audio Amplifier Sound Module Control Unit 8R0035223H
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Mercedes W205 W213 Door Module Front Left N/S Control Unit ECU A1679002718
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Mercedes W207 W212 W906 Engine Diesel 200A 14V Alternator Generator LRA03818
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Sam Unit Mercedes S203 W203 Rear Module Fuse Box A2095450701
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BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6976154
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Airbag Module BMW F10 F12 F13 X3 F25 ECU Control Unit Air Bag 6837358
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Gateway Module Mercedes W211 Control Unit ECU A2115408545
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718205226
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VW Volkswagen Sharan Speaker Loudspeaker Front Door Left Right N/O/S 7N0035454A
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Mini Cooper S JCW R56 N14 1.6 211HP ECU Kit DME CAS3 Key 7590857 Manual
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BMW E87 Footwell Light Module ECU Control Unit PL2 FRM 9204536
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9366412
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BMW Mini Cooper R55 R56 N12 1.6 Petrol Engine ECU Kit DME 7588502 CAS3 Key
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BMW E88 Cabrio 125i N52N 218HP ECU Kit DME CAS3 Key 7587164 Automatic
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BMW X5 E53 Light Check Module Control Unit ECU Lear LCM IV 6928931
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Audi A5 8T 3.0 TDI CCWA Diesel Alternator 059903016J
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Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 8,8" 9294300
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Audi TT 8J 2.0 TFSI CESA Petrol Engine Starter Motor 02E911023S
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Audi Q7 4L Positive Battery Terminal Cable 4L0971225D
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Audio Speaker BMW F20 F21 F23 F30 Mid-Range Sound Speaker Stereo HiFi 9288769
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BMW E46 Control Unit Module Mirror Memory 6913364
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Mercedes W169 Fuse Box Cover Trim Panel A1695450003
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BMW F10 F11 LCI Xenon Adaptive Headlight Ballast Control Module Unit 7355073
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Mercedes W211 OM646 Battery Cable Starter Alternator Wiring Harness A2114406209
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BMW E81 E87 E90 Hands Free Electronics Charging Module MULF 6934552
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Mercedes W216 W221 Central Gateway Control Unit Module VST A2219006702
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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 .