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 W221 Front Door Control Left N/S Module Unit ECU A2219007301
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Alternator Mercedes W212 W447 X253 C238 Petrol M274 150A Bosch A0009060922
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BMW E92 Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
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Engine Starter Motor BMW X5 E70 LCI F01 N57 Diesel Starter Actuator 8515900
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VW Volkswagen Golf MK5 Steering Wheel Column Control Module Unit 1K0953549F
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Volkswagen VW Golf Mk6 5K Bluetooth Interface Control Module ECU 7P6035730E
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Parking Control Module BMW E81 E84 E87 E90 E91 E92 E93 Unit PDC 6982402
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Audi A3 RS3 8V AMR Module Rear Suspension Damper Control Unit 8V0907376E
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Mercedes C118 W177 W247 Three Phase Alternator A0009062609
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Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223D
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Mercedes CLK W209 Radio CD Player Stereo Audio Head Unit A2098700289
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Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
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Control Unit BMW F20 F21 F22 F30 F31 F32 ICM Module ECU 6879834
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Wiring Mercedes X164 Dashboard Lower Control Panels Switch Harness A1645403706
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8510221 CAS3 + Key
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BMW E90 E91 E92 Professional CCC DVD Navigation System Controller 9148016
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BMW X3 F25 Light Module Control Footwell Lightning ECU Unit FRM3 9286157
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VW Golf V 5 1K Roof Top Antenne Control Unit Module 1K0035507F
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BMW F80 M3 F82 M4 S55 450 HP Engine Control Unit ECU DME 8645445 Dual Clutch
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Audi A3 8P Convertible Roof Control Module ECU 8P7959255
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Mercedes Sprinter W910 OM651.958 143HP Engine ECU Kit A6519003603 Automatic
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Mercedes R231 Control Unit Module Passenger Seat A2319003706
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Mercedes C219 CLS320 CDI OM642.920 Engine Module ECU Kit A6421509078 Automatic
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BMW 7 Series E65 Cable Harness Door Rear Right O/S Wiring Loom 6913164
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Mercedes W906 Glow Plug Relay Module Unit A6519007703
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Mini One R55 R56 N12 1.4 95HP Petrol ECU Kit DME 7640005 CAS3 + Key Automatic
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BMW E60 E90 N52 325i 525i 218HP Engine ECU Kit DME 7555361 CAS2 Key Automatic
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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Mercedes W209 Convertible Air Module SRS Control Unit ECU A2098200085
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Audi S5 8T Body Comfort Control BCM Supply Module Unit ECU 8K0907063C
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Land Rover Discovery 4 L319 Front Bumper Wiring Harness Cable CH22-14369-CB
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126
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Audi A4 B7 2.0 TFSI Starter Motor Engine Motor Actuator Petrol 03L911021E
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Control Unit Mercedes W169 W245 SAM Module Relay Fuse Box A1695456332
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Audi A1 8X Bluetooth Interface CarPlay MMI Retrofit Multimedia Unit Set MMI2G
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BMW 3 Series E93 E93N LCI Cabrio Battery Cable Plus Pole 9130313
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BMW 1 Series F20 F21 318d N47N 116HP ECU Kit DDE 8517874 + Key + FEM Manual
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Mini F55 BDC FCC BSI Fuse Box Power Distribution Control Module Unit ECU 5A402E9
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Control A2059008917
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BMW 1 Series E81 Footwell ECU Light Control Module LOW PL2 FRM3R Lear 9159812
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BMW E81 E87 E90 LCI 118d 318d N47 143HP ECU Kit DDE 8510592 CAS3 Key Manual
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VW Volkswagen Golf Mk8 Online Services Module Control Unit ECU 5WA035284F
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BMW F20 F21 F30 F31 118d 318d 143HP N47N Engine Control ECU DDE 8576341 Manual
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Land Rover Range Rover L322 3.0d M57 Engine Alternator Generator YLE500180
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Mercedes W212 E200 BlueEFFICIENCY M271.860 184HP Engine ECU A2711500391
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BMW F20 F21 F30 F31 Head Unit Basic Media DAB Headunit 8798185
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AUDI Q7 4L Lane Assist Module Blind Spot 4L0907566A
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VW Volkswagen Golf 1K 2.0 TFSI BWA Starter Motor 02M911023G
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Fuse Box Mercedes W169 W245 Sam Control Module Unit ECU A1699010100
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Mini One R50 R52 W10 1.6 90HP Engine Control Unit ECU Module 7557395 Automatic
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Mini Cooper S R55 R56 R57 N14 1.6 174HP ECU Kit DME CAS 3 + Key 7587548 Manual
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Relay Mercedes W124 E280 Fuse Box Light Control Relay A1265420332
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Mercedes W205 SAM Module Comfort Control Unit ECU A2229007009
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Skoda Octavia 5E Windscreen Front Camera Driver Assistance Unit 3Q0980654H
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PDC Wiring Mercedes ML W164 Front Bumper Parking Sensor Loom Cable A1645402305
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BMW F10 F30 330d 530d 258HP Engine Control Unit N57N ECU DDE 8577835 Automatic
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BMW F20 120d F30 320d 184HP N47N Engine ECU Kit DDE 8578944 FEM Key Automatic
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Display Screen BMW E60 E61 E90 LCI 8.8" Monitor Sat Nav 9193745
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Audi A6 C7 3.0 TDI CLAA Alternator Generator Engine Unit Hitachi 059903018R
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Nissan Qashqai Diesel Engine Starter Motor Actuator Starter 23300JG70A
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Mercedes W204 Radio Player COMAND Navi CD Head Unit A2048700196
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Integrated Supply Module BMW F40 X1 F48 Mini F55 F56 Control Unit Z11 8642761
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Mercedes SLK R172 Fuse Box Power Distribution Control Module Unit A1725401450
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BMW E87 E90 E91 120i 320i N46 150HP ECU Kit DME 7565300 CAS3 + Key Manual
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VW Volkswagen Polo 5 1.2 TDI Engine Wiring Harness Loom Cable 03P971612
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Mercedes R172 Cable Beam Engine Wiring Harness Loom A1725400533
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BMW F20 F21 F30 116d 316d N47N 116HP Engine Control Unit ECU DDE 8579479 Manual
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Audi A4 B8 Headlight Range Module Control Unit ECU 8K0907357B
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Door Module Mercedes W221 Front Right O/S Control Unit A2219007401
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Gateway Module BMW F10 F11 Central Module Control Unit Lear ZGW-02 ECU 9267515
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BMW E60 E90 330i 530i N52 258HP ECU Kit DME 7553166 + CAS2 + Key Automatic
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BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9150718
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BMW F32 F36 F80 F82 M4 LCI Headlight Indicator Light LED Module Left N/S 7493231
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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 .