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 Navigation System Car Sat Nav Computer Head Unit CIC 4G0035061B
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Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9268752
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Audi TT 8J Audio Amplifier Radio Lear Sound Unit 8J0035223B
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Radio CD Player VW Volkswagen Golf 5 Passat B6 Head Unit 1K0035186R
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Volkswagen Transporter T5 Body Control Comfort Unit Module BCM 7H0959433B
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Ford Transit Battery Cover Fuse Box Trim Panel Lid YC15-10A687-A9W
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BMW X3 Series E83 Rear Bumper Wiring Loom PDC Harness Towing Hitch Hook
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Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635400534
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Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469002718
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Audi A6 C6 Body Control Comfort Unit Module BCM Unit ECU 4F0907289G
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Display Screen Mercedes W176 W246 Central Information Dashboard Dash A2469016002
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VW Volkswagen Polo Mk5 6R Radio Multimedia Display Navigation Unit 6C0919603A
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Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel
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Mercedes Vito W447 114 CDI 136HP 651.950 Engine Unit ECU A6519002803 Automatic
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Ford Transit Mk6 Starter Motor Engine Actuator Diesel 2.4 TDCi YC1U-11000-AC
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9239323
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Audi Q7 4L Door Control Module Unit ECU Rear Left Right N/O/S 8K0959795B
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Mercedes W176 Center Console Wiring Loom Electrical Harness A1765405905
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BMW E87 LCI E90 118i 318i Petrol N43 ECU Kit 7599881 DME CAS3 Key Manual
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Vauxhall Opel Astra G Engine Control Unit ECU Module Petrol Automatic 09391340
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Audi A4 B8 A5 8T 2.0 TDI CGLD Engine Control Unit ECU 03L906018JH Manual
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Seat Module Mercedes W164 W203 W211 C219 Front Memory Control Unit A2118704926
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BMW Z4 E85 2.5i M54 192HP Engine ECU Control Unit Module DME 7527072 Manual
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BMW 3 X1 F30 LCI F48 Telematics Telephone Control Module ATM ECE 3G 6809306
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BMW F32 GPS Navigation Display Screen Android Auto CarPlay 10,25"
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Hyundai H-1 Safety Module Air Bag SRS Control Unit ECU Module 95910-4H600
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Seat Ateca FR 2.0 TDI Engine Alternator Generator Valeo 14V 140A 04L903021D
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715451701
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Mercedes ML W166 Door Control Module Unit ECU Front Right O/S A1669007609
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BMW E65 E66 CD Audio System Controller Player MD 9125894
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Peugeot 307 1.4 HDI Diesel DV4-TD Engine Control Unit ECU 9647158180 Manual
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Audi S3 8Y Diagnostic Interface Data Bus Gateway Control Unit 5QS907530A
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Mercedes W203 Kompressor M271 Positive Battery Cable A2035400330
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VW Golf 6 2.0 TDI Diesel CBD Engine Control Unit ECU Manual 03L906022LF
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BMW F10 F20 F30 Reversing Camera ECU Control Unit Module 90847906
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Mercedes W204 Door Wiring Front Left N/S Door Cable Harness A2045402410
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BMW 1 3 Series E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9132539
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BMW F10 F11 F20 F21 F22 F30 F31 F32 Navigation Sat Nav Head Unit High 6826790
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BMW X3 Z4 Series E83 E85 E86 Radio Business CD Player 9197127 9205279
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Mini Cooper S R55 R56 LCI N18 1.6 184HP ECU Kit DME 7619333 + CAS3 + Key Manual
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Audi A4 B7 2.7 TDI BPP Diesel Engine Alternator Generator 059903023BX
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Starter BMW E60 M57 Engine Starter Motor 7794952 0986021230
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Mini Cooper R50 R52 R53 Rear Bumper PDC Ultrasonic Sensor Cosmos Black - 303
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Mercedes W204 W176 W212 Tyre Pressure Monitor Control Unit Module A0009008402
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Volkswagen Golf Sportsvan 1.5 TSI DADA 150HP Engine ECU Key + Lock 05E907309 DSG
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Display Screen Citroen Berlingo Peugeot Partner Dashboard Monitor 9803399680
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BMW 3 Series E91 ECU Body Control Module H4 Electronic Box 61359176886 9176886
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM3R Basis Lear 9224616
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Door Module W205 Rear Right O/S Door Control Unit Module ECU A2059006413
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BMW Z4 E85 2.0i N46 150HP Engine Control Unit ECU DME Manual 7565300
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Audi A4 8K 2.0 TDI Diesel Engine Alternator Generator 04L903017E
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Fuse Box BMW E87 E90 E91 E92 E93 Power Distribution Front Control Unit 6906621
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Audi Q7 4L Steering Column Lock Mechanism Control Unit Module ECU 4F0905852B
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Mercedes W204 W211 W212 S212 Engine Starter Motor A2719060200
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Volkswagen VW New Beetle 1.9 TDI BSW Engine Unit ECU Kit 038906019NN Key Manual
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Audi A4 B7 Aerial Antenna Amplifier Module 8H0035225R
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Airbag Module BMW E46 X5 E53 Control Unit ECU Side Air Bag 6905491
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Audi A3 8P Air Module SRS System Control Sensor ECU Unit 8P7959655
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Peugeot Boxer 2.2 HDI Diesel Engine Wiring Cable Loom Harness BU3T-12B637-CCB
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Mercedes W211 Door Module Front Right O/S Control Unit ECU A2118707226
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Mercedes W167 W177 Radio Stereo Player Sat Nav Head Unit ECE A1679000111
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MINI Cooper S R52 R53 Automatic Gearbox Basic Control Unit Module EGS 7570253
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SD Card Mercedes W205 C238 Garmin Map Pilot Navigation Europe A2139063605
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Audi Volkswagen Seat Skoda Petrol Alternator Generator 14V 140A 06J903023D
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BMW F01 F07 GT F10 F11 F13 Power Distribution Fuse Box Rear 9210857
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Mercedes W212 Comand Radio Head Unit CD DVD Player A2129006905
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Mercedes W204 C350 CDI OM642.830 Engine Module ECU Kit A6429002900 Key + Lock
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Engine Wiring BMW i3 I01 Hybrid Rex Sensors Cable Loom Harness 7647591
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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 .