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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Mercedes A238 SAM Control Module Unit ECU A2139008123
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VAG VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 191937503
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Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655BT
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Audi TT FV Central Gateway Control Unit Module ECU 8S0907468B
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Starter Motor Renault Trafic II Opel Vivaro A Diesel 2.5 dCi 8200106788
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Mercedes R171 Door Control Module Front Left N/S A1718206126
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BMW G30 Dashboard Central Information Display 10,25" On Board Monitor 8801702
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Audi A4 B6 Headlight Headlamp Range Control Unit Module 4Z7907357
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Audi A6 C7 3.0 TDI Quattro CLAA 204 HP Engine Control ECU 4G0907311E Automatic
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Mercedes W204 Multifunction Display LCD Screen GPS Navi Unit A2048204797
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BMW E81 E87 E90 E91 E92 6-disc CD Changer With Magazine 6977759
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Audi TT 8J 2.0 TFSI BWA 200HP Engine Control Module ECU Manual 8J0907115N
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BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8573257 + Key + FEM
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BMW E60 E90 Dashboard Dash Onboard Display Monitor Screen Display 8.8" CCC
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BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147221
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Wiring Harness Mercedes W203 M271 Kompressor Petrol Engine Camshaft A2711502733
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Ford Transit Connect 1.5 TDCI 101HP Engine Unit ECU Kit KV6A-12A650-YA Manual
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BMW E61 Body Control Module Unit ECU BCM KBM High 6957529
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Head Unit Mercedes W167 W177 Audio Stereo Radio Player Control Unit A1679001414
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Wiring Cable BMW E90 E91 E92 N52 Engine Gearbox Module Loom Harness 7572413
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Audi A3 8P Convertible Folding Roof Module Control Unit ECU 8P7959255
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BMW X3 G01 Fuse Relay Box Control Unit ECU 6828076 8795477
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Mercedes Sprinter W907 W910 Body Control Module ECU A9079007404
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BMW X3 F25 X4 F26 Navigation Sat Nav Radio Audio Head Unit 9282043
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Mini Cooper S F55 F56 B48 Petrol Engine Control Unit ECU DME 8642707 Manual
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Fuse Box Mercedes W207 Front Relay Control Unit Module SAM A2129004911
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Mercedes W447 W907 W910 Engine Control Unit Module ECU A6549009400
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Porsche Macan 95B Rear View Camera Control Unit 95B980551L
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Mini Cooper S R60 N18 184 HP Engine Control Unit Module DME 8621260 Manual
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Porsche Boxster 986 Wiring Cables Harness Loom Front Left N/S 99661230310
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Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 8K0955559D
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Mercedes W204 C63 AMG 457HP M156.985 Engine Unit ECU Kit A1569005000 Key Lock
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BMW E46 Inclination Indicator Alarm Tilt Sensor Module 6923215
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Headlight Control Unit BMW F30 F31 LCI Module FLE2 7434273
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Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
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BMW X3 E83 Wiring Harness Engine Loom Wire Gearbox Module 3412244
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BMW E87 LCI E90 120i 320i Petrol N43 Engine ECU KIT DME 7579142 CAS3 Key Manual
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Ford Transit MK8 Radio Stereo Audio USB Head Unit Panel BK3D-18D815-BE
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Mercedes W176 A180 CDI OM607.951 109HP Engine ECU A6079001800 Automatic
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Skoda Octavia 3 5E Front Bumper Wiring Harness Loom 5E0971095CN
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Mercedes Vaneo W414 Front Left Right Door N/O/S Control Unit Module A4148200526
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BMW 1 3 E87 E90 E91 M47N2 Engine Injector Module Wiring Harness Cable 7804722
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Mercedes W168 W203 W209 Audio Sound System Amplifier Unit A1698208089
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Mini Cooper R50 R53 VICS Receiver Control Unit Module Japan 6916228
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BMW F20 F30 F32 120d 320d 420d 184HP N47N Engine ECU Kit DDE 8582155 FEM Key
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BMW 5 Series E60 M57 2 Engine Starter Motor 7794952 0986021230
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BMW F10 F11 520d Diesel N47N 184HP ECU Kit DDE 8577764 Key + CAS4 Automatic
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Mercedes R171 Door Control Module Front Right O/S A1718206226
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BMW 3 E91 ECU Body Control Module Junction Box M PL2RR JBBFE IIIR 9264577
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Mercedes SLK R172 Radio Comand CD Navi Player Control Head Unit A1729002113
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BMW Z4 E89 Roadster Cabrio Convertible Top Module CTM 09221135 9221135
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Audi S3 8V Starter Alternator Wiring Harness 5Q0971230HH
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BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS 6948336
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BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Kit DDE 7811151 CAS3 Key
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BMW E87 LCI ECU Light Module Footwell NSW PL2 FRM II Lear 9153778
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Body Control Unit BMW F01 F10 F11 F12 Module ZGW-01 High Central Gateway 9247397
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BMW F40 MINI F56 F57 F60 Control Unit Box Cover Trim Bracket 8581370
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BMW X1 F48 Telematics Control Module ECU Unit 5A049E6
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BMW X5 E70 LCI X6 E71 30dX N57 245HP Engine Module ECU Kit DDE 8517015 Automatic
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Mercedes R170 Alternator Generator M111 Petrol Engine 90A A0091547602
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Mercedes W221 SAM Module Control Unit ECU A2215404762
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Screen Cable Mercedes W212 Wire Connector Monitor Display A2125405808
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BMW E60 LCI E90 325d 525d M57N2 197HP Engine ECU Unit DDE 7809941 Automatic
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Seat Control Module BMW E60 X5 E70 ECU Seat Unit Controller 9184559
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BMW E39 M5 Xenon Headlight Control Module Unit ECU 8387114
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Opel Vivaro B 1.6 CDTI Alternator Generator 150A 95519888
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BMW 1 3 Series E87 E90 118d 318d M47N2 122HP ECU KIT DDE 7799854 CAS2 + 2 Keys
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Audi TT FV 8S Negative Battery Cable Lead Monitoring Module 8W0915181
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Renault Trafic F83 M9R 2.0 DCI Engine Control Unit Module ECU 237101754R Manual
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Air Module BMW E65 E66 Driver's Seat Sensor Control Unit 6929557
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Mercedes W203 W209 270CDI OM612.962 170HP Engine Unit ECU A6121537779 Automatic
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Relay 12V V23134A1052C643 V23134-A1052-C643
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Audi A6 C5 AVF 1.9 TDI 130HP Diesel Engine Control Unit ECU Module 038906019LM
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Mercedes W203 W204 W211 Automatic Gearbox Transmission Control Unit A0034464110
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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 .