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 Sprinter W906 Battery Cover Frame Bracket Mount Holder A9065410740
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Audi A8L 4H Onboard Comfort Control Module CCM Unit ECU 4H0907063CD
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Cable BMW E39 Petrol Engine M52 Alternator Starter Cable Wire B+ 7503505
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Audi A4 B7 4.2 BBK Petrol Engine Alternator Generator 079903021E
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Door Module Mercedes W204 W212 Front Right O/S Control Unit A2129009328
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Door Module Mercedes W169 W245 Control Unit Front Right O/S A1699000400
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PDC Module BMW X3 F25 X5 F15 Mini F55 F56 Parking Distance Control Unit 6836883
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BMW E60 E87 LCI E90 E91 N47 Preheating Control Glow Plug Unit Diesel Hitachi
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Alternator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102
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BMW 7 Series E65 E66 Antenna Tuner Amplifier Professional 6976780
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BMW 1 3 5 F10 F20 F30 Can Bus Interface Data Terminating Resistor 586509
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BMW E66 E67 Airbag ECU Control Unit Gateway Module 6983067
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Volkswagen Sharan 7N Fuse Box Module Comfort BCM Control Unit ECU 5K0937084J
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BMW X1 E84 18dX N47 ECU Engine Control Unit Kit DDE 8512499 CAS3 + Key Manual
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Alternator Generator BMW E87 E90 E91 Diesel Engine Electrical Unit 150A 7802471
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BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS 6970685
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BMW F20 F21 F30 F31 F34 GT Rain Sensor Front Windscreen Light Unit 9293279
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Mercedes C205 Control Body Comfort Module Unit ECU A2059007147
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Mercedes W204 C180 156HP Kompressor M271.952 Engine ECU Kit A2711502779 Key
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Light Module BMW F10 LCI Control Footwell Lightning ECU Unit FRM3 9313930
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Cover BMW F13 F12 F11 Engine Control Unit ECU Box Top Cover Shield 7555178
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BMW F10 F11 535d F13 640d N57Z 313HP ECU Kit DDE 8578115 Key CAS4 Automatic
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Wireless Charger BMW F90 M5 G30 Centre Console Phone Module Unit 6801509
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Mini Countryman R60 Light Module Footwell Module PL3 FRM3R Lear ECU 3457587
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Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6395407735
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BMW F07 F10 Alternator Generator 221A Valeo N57N N57Z Diesel Engine 8570672
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Renault Trafic Display Screen Sat Nav Navigation Unit Dashboard 259151852R
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BMW E87 E90 E91 118i 318i N46 129HP ECU KIT DME CAS2 Key 7561834 Manual Gearbox
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BMW 1 Series E81 Footwell ECU Light Control Module LOW PL2 FRM II Lear 9197162
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Mercedes ML W163 270 CDI Engine Control ECU Kit Key Automatic A6121536379
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Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200
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BMW E60 E65 E70 E87 E90 F10 F20 F30 N52 N53 Petrol Engine Starter Motor 7521122
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BMW E90 E91 E92 Longitudinal Dynamic Module Cruise Control 6775949
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BMW 3 Series E90 LCI Footwell Light Control Module LCM LED Basis 9230448
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Audi A6 C6 Body Control Comfort Unit Module BCM Unit ECU 4F0907289G
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BMW X5 Series E53 Power Distribution Fusebox Cover Fuse Box 8380407
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BMW 5 Series E60 Wiring Switch Engine Hood Bonnet Cable 6948729 61126948729
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Nissan Qashqai Diesel Engine Starter Motor Actuator Starter 23300JG70A
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Mercedes C140 Fuse Box Relay Cover Lid Control Unit Bracket Trim A1405400282
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Audi A4 B7 2.0 TFSI BGB Quattro 200HP Engine ECU Kit Ignition 8E0910115H + Keys
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BMW E87 E90 LCI N47 118d 318d Diesel ECU Kit DDE 8512499 CAS3 + Key Manual
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FEM Module BMW F20 F22 F30 F32 ECU Control Unit Fuse Box 9395176
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Audi RS6 C7 Acceleration Engine Sensor Module Control Unit ECU 4H0907508
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Airbag Module Mercedes C118 W177 W247 Front Air Bag Control Unit ECU A1779006604
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Mercedes W221 Rear Door Module Control Unit Left N/S ECU A0038207326
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Mini Cooper R50 1.6 W10 116HP Engine ECU Kit DME + EWS + Key 7557395 Manual
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Jaguar XF X250 Diesel Engine Starter Motor 12V DENSO 8X2311001AA
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BMW Z4 E85 E86 Basic Body Control Unit Module GM5 Star12 LOW 9116445
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Mercedes W639 Vito 111 CDI OM646 Engine Unit Module ECU A6461532591 Manual
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BMW E65 E66 Dashboard Control Display Screen 8,8" Control Unit 9130563
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Mercedes W245 B200 CDI Blue Efficiency OM651.901 136HP ECU Kit A6519009402 Key
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Fuse Box Vauxhall Vivaro B Renault Trafic III Relay Control Unit Module 93452999
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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM V2 9329701
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Communication Module BMW M4 F82 Telematic Bluetooth Control Unit 8734753
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BMW E60 LCI 530xd X5 E70 3.0xd M57N2 235HP Engine ECU Kit DDE 8509035 CAS3 + Key
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Door Module Mercedes W204 W212 Rear Right O/S Control Unit Module A2129001327
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BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9395177
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9257200
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Camera Module Bracket Mercedes W213 S213 Rear Housing Left N/S A2135451540
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Fuse Box Mercedes W204 S204 W212 SAM Control Unit Module Relay A2129006724
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Xenon Control Unit BMW X5 E70 E90 E91 LCI Adaptive Headlight 7189311
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BMW E90 E91 E92 N52N 325i 218HP ECU Kit DME CAS3 Key 7574544 Automatic
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Audi A4 B7 Starter Motor Engine Diesel Bosch 0001125053
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Air Module Mercedes W213 C238 Control Unit Module ECU A2139008822
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BMW 1 3 4 F20 F21 F30 F31 F32 N47N Diesel Alternator 180A 7823343 7823344
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BMW F20 F21 F30 LCI 120d 320d B47 Diesel ECU Engine Unit DDE 8587952 Automatic
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 65124154935 4154935
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BMW F10 F30 F32 LCI 335dX 435dX 535dX N57Z 313HP Control Unit ECU DME 8586536
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Mercedes ML W166 GLE C292 Relay Current Power Limiter Fuse Box A1669067701
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Seat Ibiza Fuse Box Relay Carrier Holder Bracket Mount Tray 6R0915345E
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Audi A3 8V Gateway Module Control ECU Unit 5Q0907530M
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BMW 5 Series E61 Touring Diversity Aerial Antenna Suppression Filter 6953191
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BMW E87 E90 LCI N47 118d 318d Diesel ECU Kit DDE 8512499 CAS3 + Key Manual
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Audi Q3 8U Head Unit Navigation Multimedia Control Unit 8U0035193CX
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BMW X3 E83 Radio Navigation System CID Control Unit CD Player 6932812
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Alternator Generator BMW F10 F11 F20 F21 F30 F31 N55 Denso 14V 210A 7616119
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BMW 1 3 Series E81 E87 E87N E90 E91 Radio BMW Business CD 65129141682 9141682
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CAS2 Module BMW E60 E61 E63 E64 Car Access Control Unit ECU 6965050
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Mercedes W639 W638 W906 Fuse Box Unit Holder Bracket Frame A6385450319
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Audi A3 8P Front Seat Occupation Sensor Left Right N/O/S 8P4963553A
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BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8513242 Automatic
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Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9065403527
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Audi A4 Door Harness Loom Cable Wiring Front Left Right N/O/S 8E1971035DF
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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 .