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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BMW 7 Series E65 E66 Driver Seat Airbag Sensor Control Unit Module 6946107
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045454501
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Audi TT FV Central Gateway Control Unit Module ECU 8S0907468B
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Parktronic Mercedes Sprinter W901 W903 Front Bumper PDC Wiring Loom Harness
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Audi RS3 8Y 2.5 TFSI Quattro 400HP DNWC Engine Unit ECU 07K907309L Automatic
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Audi Q7 4L Air Suspension Control Module ECU 4L0910553B
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio Professional CD Audio Player 9150109
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Audi Seat Skoda Volkswagen Gateway Control Unit Module ECU 3Q0907530AA
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Mini Cooper R50 R52 W10 1.6 Petrol Engine Control Unit ECU DME 7557395 Manual
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Door Module BMW E39 Passenger Door Control Module Hella 8378766 6904242
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Land Rover Freelander 2 Radio CD Player Stereo Audio Head Unit 6H5218845AC
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BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9243913
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Mercedes GLA X156 Central Display Infotainment Sat Nav Media Screen A1669008222
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Audi A3 8P 1.6 TDI 5 Speed Manual Diesel Engine Starter Motor 02Z911024A
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BMW E88 E90 E92 Switch Cluster Steering Column Indicator Wiper Stalk
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BMW F13 M6 NBT EVO HU Multimedia MMI Sat Nav Display CD Player Head Unit 2448971
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Audi A8L 4H Voltage Converter Stabilizer Control Module Unit ECU 8K0959663C
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BMW X1 E84 Footwell Light Module Control Unit ECU PL2 FRM3R 9263797
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Mercedes W164 ML350 CDI OM642.820 231HP Engine Control Unit ECU A6429002900
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BMW Z4 E85 E86 Air Module ECU Control Unit Module 9118749
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BMW E64 E89 B-pillar Sensor Left N/S 6942101 6945157
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Land Rover Freelander 2 L359 2.2 Alternator Support Bracket Mount 9661310080
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Fuse Box Citroen Berlingo Peugeot Partner BSM Control Unit Module 9675878480
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Volkswagen New Beetle 1.9 TDI BSW Engine Starter Motor 02A911024D
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Rear Bumper Antenna BMW E93 E93N LCI 2 Aerial Telephone 6970701
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Mercedes W204 Front Fuse Board Box Relay Unit Case A2049060405
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Audi TT FV LED Headlight Ballast Module Daytime Running Lights Unit 4G0907697F
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Mercedes-Benz E CLS Class W211 W219 Control Module Bracket Holder A2115452240
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BMW E81 E87 LCI E90 N43 170HP Engine Control Module ECU Kit DME 7621178 Manual
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BMW X5 E70 Footwell Light Control Module Unit LEAR PL4 FRM II 9176824
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BMW F20 F21 114i N13 102HP Engine Unit ECU Kit DME 7640755 Key FEM Lock Manual
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Mercedes W205 W213 C253 Battery Cable Negative Lead Wiring Harness A0009058912
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Volkswagen Polo 6R Audi A1 8X Alternator Generator 14V 110A 04E903015A
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BMW E93 Xenon Footwell Light Module Control Unit ECU FRMFA 9133281
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BMW F10 F11 F12 X3 F25 Electric Parking Brake Control Unit EMF Module 6862808
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Body Control BMW F22 F23 F30 F32 F33 F36 BCM Module Unit ECU 9868384
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Mercedes Sprinter W906 Air SRS Bag Control Module Unit 0285010033 A9064460742
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Peugeot 207 Display Screen Dashboard Multifunction Monitor Unit 966448398000
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VW Volkswagen Golf Mk7 Front Impact Crash Air Module Sensor 5Q0959655AA
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BMW Mini Cooper S 1 R55 R56 R57 N14 1.6 ECU Kit DME CAS 3 Key 7610011 Manual
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Chrysler Grand Voyager 2.8CRD Diesel 163HP Engine Unit ECU P04727770AC Automatic
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BMW F10 LCI Central Looking Control Module Unit ECU 9313996
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BMW E87 Front Bumper PDC Wiring Loom Cable Harness Parking Sensors 7837455
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Mercedes C238 Headlight Ballast Control Unit Module A2229000821
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BMW E46 318i M43 118HP Engine Unit ECU Kit DME 1430940 EWS3 Key Manual
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Mini Clubman F54 Negative HV Battery Terminal Cable Harness Wiring Loom 6821204
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BMW X5 E70 CAS3 Control Unit Key Reading Module 6943838
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Mercedes W176 W242 W246 Alternator Generator Bosch A180 Petrol A0009061903
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Mercedes CL203 Fuse Box Control Unit Module SAM A2035454901
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BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Unit DDE 7811151 Automatic
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Mercedes C140 Headlight Module Ballast Relay Control Unit LCM A1405420732
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BMW 1 3 Series E81 E87 E88 E90 E91 LCI Radio Business CD Player 9227500
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Mercedes W207 A207 SAM Control Unit Module Fuse Box Rear A2129004222
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BMW F01 F10 F11 F12 Body Control Unit Module Gateway ZGW-01 9247398
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Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469003818
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Audi A4 B7 Air Module Control Unit ECU Impact Sensor 8H0959655G
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BMW F20 F21 LCI M140i B58 Gearbox Wiring Cable Aquamist Water Methanol 8631672
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BMW E82 Footwell Light Module LOW PL2 FRM II 61359197176 9197176
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BMW F30 Fuel Pump Module Fuel Pump Control Unit ECU 8699235
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Skoda Octavia 5E Front Lamp Headlight Range Control Module Unit ECU 7P6907357A
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Audio Amplifier BMW F10 F11 F12 F13 Harman Kardon Top HIFI Sound Unit 9261703
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Mini R50 R52 Alternator Generator 110A Benzin 7550997 7550319
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BMW Z4 F20 F30 E89 Petrol Alternator Generator 170A 7605478
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Audi Q7 4L Quattro S Line Keyless Entry Antenna Control Module 4L0907335
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Radio CD BMW E87 E90 E91 LCI Professional Bluetooth Player Control Unit 9258173
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BMW F07 GT F10 F11 535d F13 640d LCI N57Z 313HP Engine ECU DDE 8586536 Automatic
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Engine Wiring BMW X5 E53 3.0d M57N Loom Cable Harness Injector Module 7796819
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Mini Cooper R55 R56 Petrol N12 DME Engine Control Unit ECU 7600076 Manual
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Key Reading Module BMW E60 E61 E81 E87 E90 E91 CAS 3 ECU Control Unit 9287535
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Audi TT 8J Driver's Side Door Wiring Harness Loom 8J0971029AD
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Central Information Display BMW F20 F21 F22 F23 Screen 6,5" 9322122
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BMW E81 E87 E90 LCI 118d 318d N47 143HP ECU Kit DDE 8510592 CAS3 Key Manual
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Alternator Generator BMW F07 F10 N57N N57Z Diesel Engine 230A Valeo 8570672
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Mini Cooper Cabrio R57 High SPEG PL3 DC/DC H5 Fuse Distribution Box 3455242
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BMW E87 LCI E90 N43 118i 318i ECU Control Unit Kit DME 7595179 CAS3 + Key
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Mercedes-Benz CLK-Class C209 W209 Aerial Antenna Amplifier Unit A2098204189
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Mercedes W205 SAM Module Fuse Box Relay Control Unit A2059008204
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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 .