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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SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035451701
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BMW 3 Series E90 Footwell Light Control Module Lear FRM3R PL2 9230445
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Safety Control Unit BMW F01 LCI F07 F10 F11 F25 Air Module Bag ECU 9350003
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Audi RSQ3 F3 Onboard MMI Multimedia Sat Nav Display Touch Screen 83A919605C
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BMW E87 LCI E90 E92 120i 320i N43 170HP ECU Kit DME 7580279 CAS3 + Key Manual
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BMW X5 X6 E70 E71 Control Unit Module Transfer Box 7569969
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Audi S6 C6 5.2 FSI Quattro BXA 435 HP Control Unit ECU Kit 4F1910552C Automatic
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BMW 3 Series E92 Xenon Footwell Light Module Control Unit ECU PL2 FRM3R 9224593
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BMW F07 GT Body Control Module Electronic Junction Box JBBFE 3 PL6 V12 9226906
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BMW F20 F23 220i Petrol N20 ECU DME Engine Control Unit Module 8617551 Manual
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Mercedes Vito W639 Cover Fuse Box Case Trim Panel Lid A6395400182
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BMW Z4 E89 Cabrio Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
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BMW E82 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9227178
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On-Board Monitor BMW X5 E70 X6 E71 Sat Nav System Screen 8,8" 9194064
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BMW F30 Fuse Box Front Body Control Module ECU BCM Unit 8781423
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Mercedes W166 Switch Rotary Selector Controller Navigation Radio A1669003501
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Audio Amplifier BMW F30 F31 LCI F32 Top Hifi Harman Kardon Control Unit 9393186
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BMW E60 E61 CCC CD Professional Navigation System Controller 6949171
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BMW E70 3.0d M57N2 235HP Engine Control ECU KIT DDE 7806976 CAS3 Key Automatic
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Audi A5 8T Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104AE
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Mercedes W176 W246 Radio COMAND Nav CD Player Control Head Unit A2469003519
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Mini R50 One D W17 1.4 Diesel Engine Starter Motor 7791335
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Renault Trafic III VIvaro B Wiring Connector Additional Horn Cable 240720782R
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Exide Battery Excell EB802 80Ah 700A Accumulator
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BMW F40 F44 Seat Occupancy Mat Control Unit Sensor 7948144
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Mercedes C118 Instrument Cluster SpeedoMeter Module ECU Control Unit A2479003508
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BMW E60 LCI E90 E91 325i 525i N53 218HP ECU Kit DME 7604567 CAS3 + Key Manual
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Driver Seat Module Mercedes R171 W203 W211 Memory Control Unit A2118700526
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Audi A4 B9 Q7 4M A5 F5 Adblue Control Module Unit 4M0907355
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Fuse Box Mercedes W204 S204 SAM Control Unit Module Relay A2049000800
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BMW F20 F21 Stoplamp Third Brake Light Rear Stop Lamp Red 7241551
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Mercedes W204 C200 M271.950 184HP Engine ECU Unit Module A2711502879 Manual
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BMW G20 Axle Differential Module Control Unit ECU 5A11E72
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BMW X5 E70 Rear Bumper PDC Parking Sensor Cables Wiring Harness Loom Set 8039828
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BMW E60 E61 E63 E65 X5 E70 X6 E71 PDC Parking Control Module Module 6978232
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BMW Mini Cooper R50 R52 R53 6-Disc CD Changer Without Magazine 6977767
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Yaw Sensor BMW E60 E61 X5 E70 ESP Rotation Rate Speed Acceleration Unit 6782371
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9239226
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Toyota Hilux Vigo Engine Starter Motor Assembly Unit 03L911024A
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Bosch S4 A05 AGM Accumulator Battery 60Ah 680A 12V
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VW Volkswagen New Beetle Fan Control Module Relay 1J0919506K
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Audi S8 A8 D3 4E Air Shock Absorber Sensor Damper Front Left N/S 4E0616575K
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BMW 1 E87 LCI Max Brose Footwell Light Module Control Unit ECU FRM3R 9240533
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Audi A5 8T CD Player Radio Multimedia MMI Head Unit ECU 8T2035666D
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Mercedes Sprinter W906 Door Module Front Right O/S Control Unit A9068203926
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Audi S5 8T Rear Reversing Camera Module View Camera Control Unit ECU 8T0907441B
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Mercedes R171 272.963 SLK350 272HP Engine Module ECU Kit A2721531291 3 Keys Lock
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BMW F10 F11 F20 F21 F22 F30 F31 F32 Navigation Sat Nav Head Unit High 6819950
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Audi Q3 8U Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8U0971104E
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BMW X3 G01 Dashboard Monitor Nav Onboard Central Display Screen 10,25" 8715335
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BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
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Mercedes SLC 250d R172 OM651.980 204HP Engine Control ECU A6519008102 Automatic
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BMW 3 Series E90 Footwell Light Control Module ECU NSW PL2 FRM II Lear 9153782
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Mercedes W164 W251 High Tone Horn Signal Right O/S A0065424220
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BMW F07 GT Footwell Light Module Control Unit ECU FRM3 9225711
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Mercedes SLK R172 Radio CD Player Sat Nav Comand Head Unit A1729006609
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BMW E60 E61 535d M57N Engine Control ECU Engine Control DDE 7808405 Automatic
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BMW 5 X3 X5 Series E53 E60 E61 E83 PDC Parking Sensor Ultrasonic Schwarz Black
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IBS Cable BMW E60 Negative Battery Lead Wiring Harness Control Unit 6947499
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Door Wiring Mercedes W415 Citan Front Right O/S Loom Cable Harness 241240494
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Mercedes W176 A 250 270.920 211HP Blue Efficiency ECU Kit A2709000900 Key Lock
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BMW X3 X5 Series E53 E83 E87 Hands-free Electronics Charging Module MULF 6945387
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VW Golf MK7 5G Audi A3 8V Engine Starter Motor Valeo 2.0 TDI Diesel 02M911024S
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BMW 1 Series E87 ECU Body Control Module Unit H2 PL2 JBBFE 6964596
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BMW F20 F21 F30 F31 Valvetronic Servomodule Wiring Cable Loom Harness 7619143
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Mercedes W176 W246 200 CDI 651.930 136HP Engine Unit ECU A6519009702 Manual
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Light Module Mini R57 LCI Cooper ECU Footwell FRM3R PL3 High EKS Lear 3457586
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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 .