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 A3 8P Side Air Module Control Unit ECU 8P0959655N
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VW Golf 3 GTI 2.0 16V ABF 150KM Petrol Manual Engine Unit Module ECU 037906024BE
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Land Rover Freelander 2 Yaw Rate Sensor 6G9N-14B296-AB
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Alternator BMW M3 E46 Z3M E36 Petrol S54 Generator Valeo 120A 7831436 7830791
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Mercedes W204 Rear Left Door N/S Control Unit Module A2048207785
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Mercedes-Benz C-Class W204 Bluetooth Hands-free Mobile Phone Adapter B6 787 5877
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Head Unit BMW F20 F21 F30 Radio Professional CD Player Control Module 9310455
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BMW E64 E89 B-pillar Sensor Left N/S 6942101 6945157
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Audi A4 B7 2.0 TFSI BGB Quattro 200HP Engine ECU Kit Ignition 8E0910115H + Keys
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Rear Bumper Antenna BMW E93 E93N LCI 2 Aerial Telephone 6970701
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 9173686
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BMW X5 E70 Front Bumper PDC Wiring Loom Cable Harness 6970675
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Mini Cooper One R55 R56 R57 Radio Boost CD Player Head Unit 3455263
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Mercedes W906 311CDI OM646.985 109HP Engine Unit Module ECU A6461506378 Manual
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Mini One R56 N12 1.4 95HP Engine Control Unit Module ECU DME 7600020 Automatic
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Ford Transit Mk7 Engine Alternator Generator Unit Diesel AC1T10300BB
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Mercedes W166 Prefuse Box F32/4 Power Distribution Box A1665402950
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Mercedes H243 Bonnet Actuator Left Right N/O/S Pedestrian Protection A2479069901
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BMW F45 F46 F55 F60 B37 B47 Engine Starter Motor 8581788
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7811702 + CAS3 + Key Automatic
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BMW E60 E61 Positive Battery Cable Plus Pole Lead 6955061
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Rain Sensor Mercedes W204 W212 Light Solar Condensation Control Unit A2079012200
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BMW E89 Max Brose Footwell Light Module Control Unit ECU FRM3R 9249086
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Radio CD BMW E87 E90 E91 LCI Professional Bluetooth Player Control Unit 9258173
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Mercedes SLK R171 Air Module Bag SRS Control Unit ECU A1718205826
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Mercedes W204 C180 Kompressor 271.952 156HP Engine Control Unit ECU A2711504879
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Mercedes W205 X253 Wiring Cable Harness Center Console A2054403008
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On Board Monitor BMW E60 E63 E90 Dashboard Display Screen 8.8" 9114362
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Parking Sensor Display Mercedes W176 W204 W246 Dashboard Panel PDC A1725420023
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Ford Transit Mk8 VI Glow Plug Controller Unit Module Relay GK2112B533AA
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BMW X5 E70 ECU Body Control Module Unit JBBFEII PL4 LOW 9146036
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Mercedes W168 Battery Support Holder Front Mount Bracket A1686100336
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Mercedes GLE C292 Coupe Trunk Lid Module Automatic Closing A2929007101
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AUDI Q5 8R Quattro 3.0 TDI Diesel CCWA CCWB Starter Motor 059911022
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Mercedes C140 Gearbox Module Transmission Basic Control Unit A0175450632
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BMW X5 E60 E61 E65 E70 Front Left N/S Seat Angle Adjustment Drive 9146329
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BMW Z4 E85 Petrol M54 Wiring Loom Harness Engine Automatic Gerabox
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Mini Cooper S R52 R53 W11 170HP Engine ECU Kit DME 7545789 + EWS + Key Manual
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Mercedes-Benz B W245 Front Bumper Parking Distance Sensor Parktronic Primed
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Audi Q7 4L 3.0 TDI V6 Diesel Engine Cable Wiring Duct Channel Cover 059971341E
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Audi A4 B9 Front Door Control Module Unit Driver's Side 8W0959593E
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Mercedes CLC CL203 Trunk Lid Tailgate Left N/S Wiring Cable Harness A2035406609
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Control Unit BMW F20 F21 F22 F30 F31 F32 Control Unit Airbag ECU Module 9258350
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BMW Z4 E89 Head Unit Stereo Professional Navigation System Computer CIC 9214939
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Mini Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS 3 + Key Automatic
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Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A A0009067900
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Mercedes-Benz A-Class W176 Mikrophone Roof Control Module A2468200035
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Gearbox Module Mercedes S203 W203 C200 Automatic Control Unit ECU A0325453232
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Audio Module Mercedes C238 Premium Sound E Control Unit A0009000518
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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Bracket Mount 8200527320
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Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924
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Mercedes X253 Central Control Unit Electronic Module A2139006633
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Relay Mercedes W124 E280 Fuse Box Light Control Relay A1265420332
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Audi Q5 FY Body Control Comfort Unit Module BCM Convenience Unit ECU 4N0907064AP
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Mercedes CLS W219 Head Unit CD Player Navigation Radio Audio Unit A2119060700
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Audi A4 B8 Door Module Front Drive Side Control Unit ECU 8K0959793E
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Renault Master III Radio CD Player Bluetooth Head Unit USB MP3 281156951R
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BMW E65 Battery B Engine Compartment Terminal Point Cover 8387568
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Mini Cooper One R50 R52 Petrol W10 Compact Alternator RTX 7515029
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Mini Cooper One R55 High SPEG DC/DC H3 Fuse Distribution Box 3451927
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Mini Cooper One R50 Radio Remote Alarm Key Fob Button 433 MHz 6919270
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Rear Module Mercedes C238 PDC Parking Assistant Parktronic Control A0009006616
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BMW X5 E70 X6 E71 Alternator Generator 170A 170AMP 14V VALEO BM57N2 7796125
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SD Card Mercedes X156 W176 W205 Garmin Map Pilot Navigation Europe A2139062610
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BMW E60 E61 Centre Console Switch Centre DSC PDC 6944962
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VW Golf Audi A3 8P 2.0 TDI Diesel Engine Starter Motor 02M911024G
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Mini Cooper One F57 Convertible Folding Top Control Unit Module CVM 7457434
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BMW E60 E61 MINI R50 Rear Bumper PDC Ultrasonic Sensor Hyper Blue
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Mercedes W639 Vito 111 CDI OM646 Engine Unit Module ECU A6461532591 Manual
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Audi A6 C7 Fuel Pump Control Unit Module 4G0906093F
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Mercedes Sprinter W910 Wiring Loom Cable Harness A9105409455
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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 .