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 Q3 8U Air Module Crash Impact Sensor Control Unit 8U0959651
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Remote Key Audi A4 S4 B7 8E Radio Alarm Key Fob Opener Button 8E0837220Q
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BMW 1 Series E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224589
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BMW E60 E90 330d 530d M57N2 ECU Engine KIT DDE 7803369 CAS3 + Key
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4 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525
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BMW E46 E53 Mini R50 R53 6-Disc CD Changer Multichanger Without Magazine 9131852
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BMW F20 Alternator Engine Alternator Generator Denso 170A Petrol N55 7639661
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BMW 1 3 5 7 X5 E60 E65 E70 E81 E87 E90 F10 Starter Motor 2354701
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Mercedes C140 Battery Box Boot Storage Cover A1406934633
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Mercedes W221 Seat Control Module SSG Unit Front Left Seat N/S A2218702986
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BMW E46 E64 Front Seat Module Control Unit Memory 7067801
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BMW E87 E90 N45 116i 316i Petrol ECU Kit DME 7557809 + CAS 3 + Key Manual
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Mercedes-Benz B W245 Parktronic Parking Sensor Wiring Cable Rear PDC A1695407205
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BMW E60 530i M54 231HP Engine ECU Kit Unit DME 7533651 + CAS2 + Key Automatic
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Gearbox Control Mercedes W177 W247 Transmission Unit Module ECU A0009015810
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Mercedes W207 Connection Media Interface Cable iPod Wiring Lead A0018276804
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VW Passat Variant PA 1.6 TDI Diesel Blue Motion Engine Control ECU 03L907425C
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Mercedes W164 ML350 CDI OM642.820 231HP Engine Control Unit ECU A6429002900
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BMW F45 Active Tourer LED Module Cornering Light Front Right O/S Unit 7391400
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Nissan Qashqai Renault Megane II Dacia Duster dCi Engine Alternator 820072829
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Fuse Box Mini R55 R56 R58 1 Electrical System Distribution 9213372
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Head Unit Mercedes W167 W177 Audio Stereo Radio Player Control Unit A1679001414
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Mercedes W221 Fuse Box Front Relay Control Unit Base Module A2215450001
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Head Unit Hyundai H-1 Radio CD Player MP3 AUX RDS Unit 96100-4H920WK
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VW Volkswagen Touran 1T 1.4 TSI Starter Motor Petrol Engine Unit 02Z911023G
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Mercedes W212 E220CDI OM651.924 Engine Unit Module ECU Kit Key Lock A6519005301
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Audi A3 8V Cabrio Folding Top Roof ECU Module Control Unit 8V7959255
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Mercedes W169 200CDI OM640.941 140 HP Engine Module ECU Kit A6401502579 Key Lock
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BMW E87 LCI E90 118i 318i Petrol ECU Engine Control Kit N43 DME 7579142 CAS3 Key
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Mercedes ML W164 Air Module SRS Control Unit ECU A1648207926
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Ford Transit Custom 2.0 EcoBlue 130HP FWD Engine ECU GK21-12A650-CA Manual
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Mini R56 LCI R60 N16 98HP Petrol Engine Control Unit ECU DME 8600124 CAS3 Key
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BMW E81 E87 LCI N43 116i 2.0 122HP Engine ECU Kit 7595179 DME CAS3 Key Manual
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Alternator Generator Peugeot 207 Diesel 12V Electrical Unit 9646321780
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BMW E90 E91 LCI N47N 320d 184HP ECU Engine Control Unit DDE 8518269 Automatic
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Ford Fiesta MK7 Battery Box Tray Housing Holder Bracket 8V2110723BC
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Mini Cooper One R50 R52 Starter Motor 0,9KW BOSCH 4542741
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BMW E90 E91 LCI N47N 318d 143HP Engine ECU Kit DDE 8510832 + CAS3 + Key Manual
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Mercedes H243 H247 Body Control Module BCM Unit ECU A2479005615
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Mercedes Vito W639 Coolant Radiator Fan Relay Control Module A0025424419
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VW Polo 6R 1.4 CGGB 85HP Engine Control Unit ECU Kit 03C906024CN Manual
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BMW E65 E66 Battery Cable Positive Plus Pole 6904905
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Mercedes W906 Fuse Box Control Unit Module ZGS Temic A9069006303
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Ford Transit Airbag Module Air Bag Control Unit ECU 6C1T14B056
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VW Volkswagen Tiguan 5N Bluetooth Interface Control Module ECU 3C8035730
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BMW Mini One R56 N12 1.4 N12B14A 95HP Petrol ECU Kit DME 7589971 + CAS3 + 2 Keys
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BMW F13 Footwell Light Module Control Unit ECU FRM3 9313933
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Mercedes W202 A208 C208 W208 W210 Fuse Box Relay Control Unit A0005400072
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Renault Scenic III 1.5 Dci Engine Alternator Generator 12V 120A 8200960533
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Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Mercedes A238 Control Unit Module Amplifier Premium Sound A2139009020
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Audi RS3 8V 2.5 TFSI Quattro Starter Motor Battery Cable Wiring 8V0971228
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Audi A3 8P 2.0 TDI CBAB 140HP Engine ECU Kit Ignition + Key 03L906022BQ Manual
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Audi Q2 GA NAV Multimedia Navigation Display Screen MMI 8,25" 81A919605B
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BMW F20 F21 F22 F30 F31 Alpine Cd Radio Player Head Unit 9271715
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BMW F10 F20 F30 F31 Mini F55 F56 Front Heated Seat Control Module ECU 7490465
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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 .