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 B9 Tow Bar Trailer Towing Control Module Unit 4E0907383J
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Alternator Mini Cooper R55 R56 R57 LCI R60 Diesel N47N Generator 158A 7576956
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Renault Trafic II 2.0 DCI Master III 2.3 DCI Alternator Plate Cover 231769503R
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BMW G20 Radio Audio Amplifier Remote Receiver Control Module Unit 5A4CE55
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Audi A3 8L TT 8N Battery Cable Positive Wire Lead Terminal 1J0971228AE
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BMW E60 E90 E91 330i 530i N52 Engine ECU Kit DME 7559178 CAS2 + Key Automatic
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BMW E90 E91 LCI N47N 318d 143HP Engine ECU Kit DDE 8510832 + CAS3 + Key Manual
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Mini Cooper S ALL4 R60 N18 Engine Unit ECU Kit DME 7639049 CAS 3 Key Manual
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MINI Cooper R50 W10 116HP Engine ECU Kit DME EWS Key 7545789 Automatic
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Mercedes C207 Cable Wiring Power Steering Rack Loom Harness A2045400010
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Audio Amplifier BMW F20 F21 F22 F23 Top HiFi Harman Kardon Control Unit 9343739
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Body Control Module BMW F20 F21 F30 F31 F32 Comfort Unit FEM ECU LR01 9315682
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Differential Lock Module BMW F13 M6 F80 M3 Rear Axle Control Unit ECU 8065118
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Mini Cooper D R55 R56 R60 N47N 112HP Diesel Engine ECU DDE 8519663 Automatic
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BMW F07 F25 CIC Sat Nav Professional Infotainment Radio Player Head Unit 9275509
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BMW E87 LCI CCC CD Professional Navigation System Controller 9185532
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Negative Cable Mercedes C117 W176 Battery Lead Minus Pole Wiring A1765400009
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Mercedes-Benz W169 Front Bumper Parking Distance Sensor Parktronic Polar Silver
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Mercedes-Benz B W245 Front Bumper Parking Distance Sensor Parktronic Primed
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Mercedes W204 W212 C218 Sound Audio Amplifier Harman Becker A2128700194
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Mini F55 F56 Cooper SD B47 Diesel Engine ECU Kit DDE 8585225 BDC Key Manual
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BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS 3 Key 8506434
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Vauxhall Opel Astra G Display Screen Multifunction Unit Dashboard 009133265
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BMW 3 Series E36 Electrical Fuse Relay Box Cover Panel Trim 1387613
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Volkswagen Crafter 30-35 2E Amarok 2.0 TDI Engine Starter Motor 2H0911023F
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Peugeot 307 1.6 HDI Diesel Engine Wiring Cable Loom Harness 9658277780
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Audi Q5 8R Multimedia Radio Control Module Head Unit 4G0035061Q
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Starter Motor Audi S8 D3 4E VW Touareg Starter Motor Bosch 1.7KW 07C911023H
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Mercedes X156 GLE W166 Surround View Camera Control Unit Module A1569003303
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Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698700689
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BMW F20 F21 F30 F31 F32 Towing Hitch Trailer Hook Module Control Unit 9463373
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Audi A5 S5 8T Door Module Control Unit Front Passenger Side 8T0959792J
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Audi A4 B9 Front Centre Dashboard Tweeter Speaker 8W0035454A
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Mercedes SLK R171 Roadster Soft Top Folding Roof Control Module A1718204926
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BMW E87 E90 E91 120i 320i N46 150HP ECU Kit DME 7565300 CAS3 + Key Manual
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AUDI Q7 4L Lane Assist Module Blind Spot 4L0907566A
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Starter Renault Trafic II Opel Vivaro A 2.0 dCi Starter Motor Remy 233002654R
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Audi Q5 8R 2.0 TDI Alternator Generator 14V 180A Valeo 03L903016A
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Body Control Module BMW X3 F25 ECU Junction Box JBBFE III 3 Lear 9304587
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Opel Vivaro A Renault Trafic MK3 1.6 dCi Engine Alternator 185A 93461046
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Audi Q2 GA Volkswagen T Roc Battery Terminal Positive Cable 5Q0971228AC
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Mercedes W164 W204 Fuel Pump Module Control Unit ECU Petrol A2215401601
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Mini R60 Rear PDC Ultrasonic Parking Sensor Midnight Grey Metallic 9813237
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Mini Cooper R58 Footwell Light Module Unit High EKS PL3 FRM3R Lear 3456952
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Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698206926
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Navigation Head Unit BMW F20 F21 F30 F31 LCI F32 Radio CD Player High 2 9867503
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Audi A4 B7 Petrol Engine Alternator Generator Electric Unit 14V 140A 06B903016AB
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Audi TT 8J Yaw Rotary Rate Sensor Speed Cluster Sensor 7H0907655A
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Mini F55 F56 EVO HU Head Unit Basic Media Navigation Headunit Module 6819426
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PDC Loom Cables BMW E81 E87N LCI Front Bumper Wiring Set 9128570
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BMW E87 E90 LCI CIC Sat Nav Screen Navigation Professional 9222861
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BMW F10 F30 F31 F32 Side View Camera Front Bumper Video Surround View 9240352
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Mini Cooper R56 N12 1.6 120HP ECU Kit Engine DME 7640005 + CAS3 + Keys Manual
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Citroen Berlingo Peugeot Partner Battery Terminal Earth Cable Wiring 9676811780
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Mini Cooper R57 PL3 SPEG H4 Fuse Control Unit Module Distribution Box 3456857
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Audi Q3 8U Amplifier BOSE Premium Audio Sound System Module 8X0035223D
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Mini One R56 N12 1.4 95HP Petrol ECU Control Unit Kit DME 7589971 + CAS3 + Keys
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Volkswagen Tiguan 5N Golf Mk5 Alternator Generator Diesel Power 03L903024M
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Mini R50 R52 R53 6-Disc CD Changer Multichanger with Magazine 6946989
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Road Top HD Digital Decoder Retrofit Kit Module Camera CarPlay Control Unit
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Battery Cable BMW X3 F25 Red Positive Plus Pole Blow Off 9225099
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Navigation Module BMW F10 F20 F22 F30 F32 Sat Nav DAB Head Unit High 9318750
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BMW F10 F11 F12 Central Gateway Module ECU Control Unit Lear ZGW-02 High 9267514
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Blind Spot Sensor BMW F40 G20 G21 G30 G31 Radar Range Module SRR-01 Rear 7915643
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Alternator Generator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102
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Mercedes ML W166 Radio Stereo CD Player Audio Sat Nav Head Unit A1669000213
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Mini Cooper One R55 R56 R57 Radio Boost CD Player Head Unit 3455263
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Mercedes ML W163 270 CDI Engine Control ECU Kit Key Automatic A6121536379
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Mercedes ML W164 Audio 20 Stereo Radio CD Head Unit Player A1648209289
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BMW 1 2 Series F20 F21 F22 LCI Battery Cable Lead Positive Underfloor 9348761
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BMW E81 E82 E87 LCI E88 123d N47S 204HP Engine Unit ECU DDE 8512500 Manual
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Volkswagen VW Golf V TDI Diesel Engine Starter Motor 022911023F
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Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CC
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Mini Cooper S R53 W11 170HP Engine ECU Kit DME 7553735 + Key + EWS Manual
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BMW 1 Series E87 LCI Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
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MINI Cooper R53 W11 170HP Engine ECU Kit DME 7527610 EWS Key Manual
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BMW X3 E46 E83 Navigation Computer GPS System DVD Player Unit 6971353
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Telephone Control Module BMW F30 F32 F36 Telematics Bluetooth ATM ECE 4G 2622584
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Mini Cooper R55 R56 Petrol N12 DME Engine Control Unit ECU 7600076 Manual
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BMW F46 218i B38 136HP Engine Control Unit ECU Kit DME 8674260 FEM + Key Manual
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BMW 5 7 X5 Series E53 E60 E61 E65 E66 Handset Phone Mobile EVEREST 6953468
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Mercedes W213 E220 CDI OM654.920 Engine Control Unit ECU A6549001400 Automatic
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Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500
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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 .