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-Benz C-Class W203 Airbag System Control Unit Module ECU A2038206385
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Mini Cooper R56 LCI N16 1.6 122HP Petrol Engine ECU Kit DME 7638322 + CAS3 + Key
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BMW 1 3 5 Series F10 F20 E90 LCI Wiring Harness Engine Glow Plug Module 7811163
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Mercedes Vito W639 Door Front Right O/S Control Unit Module ECU A6398201226
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Mini Cooper R55 R56 N12 1.6 120HP Petrol ECU Kit DME CAS3 Key 7640005
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Fuse Box Cover Mercedes W203 W209 Battery Terminal Housing Trim Cap A2035451003
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Audi A8 4E S8 D3 Head Unit Interface Control Module 4E0910732A
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Mini Cooper R50 1.6 W10 116HP Engine ECU Kit DME 7557395 + EWS + Key Manual
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Mercedes W221 Bluetooth Module Multimedia Control Unit ECU A2168206526
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Audi A7 4G8 Central Gateway Control Lear Module Unit ECU 4G0907468G
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BMW E81 E87 E90 Hands Free Electronics Charging Module MULF 6953044
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BMW X3 F25 ICM Control Unit Air Module SRS Airmodule ECU 6853992
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BMW 5 Series E60 Light Control Module Unit Lear LME6X MAN. LWR (LCM) 6936103
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Body Control BMW F30 F35 F35 LCI BCM Comfort Module Unit BCM 8709210
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Mercedes W207 W212 Parktronic Parking Control Unit Module A0009003706
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MINI Countryman R60 High SPEG Fuse Distribution Box H7 9803979
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Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 8E0959651B
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Mini Cooper R55 R56 R57 CCC CD Navigation Sat Nav Head Unit 9170730
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BMW E90 Max Brose Footwell Light Module Control Unit ECU FRM3R 9241008
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Volkswagen TOURAN 1T Body Control Comfort Unit Module BCM Unit ECU 1K0959433AR
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BMW 3 E92 E92N LCI Amplifier Hifi Speaker System 9143162
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BMW E60 E61 Driver's Side Door Air Module Control Unit Module 6976157
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Mini Cooper R60 Countryman High PL3 SPEG H6 Fuse Distribution Box 9809381
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Audi A3 8V Module BCM Body Control Unit Module ECU 5Q0937084AA
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Mini Cooper R60 Footwell Light Module Unit High EKS ECU PL3 FRM3R Lear 3456987
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Audi A5 8T Wiper Switch Stalk Steering Column Wheel 8K0953502C
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Seat Control Unit BMW X5 E70 E87 E90 E91 E92 Module Memory ECU 9162959
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Part no. 8506666-3
Mini Cooper D R56 LCI 112HP Diesel N47N Engine ECU Kit DDE 8506666 CAS3 Key
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Part no. 3453739
Mini R56 High SPEG DC/DC Fuse Distribution Box H3 3453739
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BMW E90 E91 E92 Professional CCC Navigation System Controller 9185536
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Part no. A2049014504
Rain Sensor Mercedes W204 W212 Windscreen Control Unit A2049014504
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Mercedes W164 W204 W211 OM642 Diesel Alternator Generator A6421540402
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BMW E90 Radio Professional CD Player 65126971703 6971703
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BMW Z4 E89 Roadster Convertible HiFi Speaker System Amplifier 9133913
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Audi A4 B9 Communication Telematics Control Module Unit ECU 4KE035282H
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Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803
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BMW 1 Series E87 ECU Footwell Light Module Control Unit PL2 FRMFA 6955491
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BMW F01 F10 F11 LCI IBS Negative Battery Lead Cable 9253082
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Mercedes W204 Fuse Box Rear Relay Control Unit Module SAM A2045458601
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BMW X3 F25 Engine Wiring Start/Stop Manual Gearbox Module Loom Cable 7811232
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Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6961363
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Audi A8 S8 D3 Electric Parking Brake Module Handbrake Control Unit 4E0907801B
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BMW F10 F11 F12 X3 F25 Electric Parking Brake Control Unit EMF Module 6862808
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BMW X5 E70 LCI Footwell Light Control Module Unit Lear FRM3R XE 9287250
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Part no. 8512415-6
Mini Cooper SD R55 R56 LCI N47N 90HP Engine ECU Kit DDE 8512415 CAS3 MANUAL
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Gearbox Module Mercedes S203 W203 C200 Automatic Control Unit ECU A0325453232
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BMW 1 3 Series E81 E87 LCI E90 N47 120d 320d 177HP ECU Kit DDE 7811700 CAS3 Key
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BMW F20 F21 F22 F87 Windscreen Camera Front Window KaFAS Camera 9278358
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Audi RS6 C7 Acceleration Yaw Rate Sensor Module Control Unit ECU 4G0907637L
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Mini Cooper One R50 Fuel Filler Cover Flap 0148459 Chili Red - 851
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Engine Wiring Renault Trafic II Loom Harness Module 240113809R
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Parking Sensor Mercedes W169 W245 PDC Distance Control Unit Module A1699007400
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BMW E81 E87 LCI N43 116i 2.0 122HP ECU Control Unit Kit DME 7640015 CAS3 + Keys
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BMW E65 Passenger Seat Air Module Sensor Control Unit SRS 6960218
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BMW E60 M5 E63 E64 M6 S85 Starter Motor 7835126
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BMW E81 E87 E90 MULF Hands-free Electronics Charging Module 9200821
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BMW 5 Series F10 Light Control Footwell Module ECU Unit FRM3 9250454
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Audi A3 8P Battery Box Tray Housing Holder Bracket Cover 1K0915333B
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BMW E87 LCI E90 118i 318i Petrol ECU Engine Control Kit N43 DME 7579142 CAS3 Key
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio Professional CD Audio Player 9199439
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Engine Wiring Mercedes W169 W245 Loom Cable Harness Injector Module A6401503733
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BMW E81 E87 LCI N43 116i 1.6 122HP ECU Control Unit Kit DME 7595179 CAS3 + Key
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Mercedes W204 SAM Fuse Prefuse Box Relay Control Unit A2045403850
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Mini R56 Footwell Light Module Control Unit ECU PL3 FRM II High EKS 3455701
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Mercedes ML W163 Window Windscreen Rain Light Sensor Module A1638200726
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Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket A2055400840
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Mercedes ML W164 Passenger Side Control Unit Module Fuse Box SAM A1649004101
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Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508
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Seat Leon Mk3 Headlight Module Left Right N/O/S Headlamp Ballast 7P5941591AD
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Mini Cooper R50 W10 116HP Engine Control Unit ECU Kit DME 7557395 Key EWS
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Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Unit Head 3456760
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BMW 1 3 5 Series E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147184
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Volkswagen Caddy 1.6 TDI CAYD C20 102HP Engine Unit ECU Manual 03L906023PC
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BMW 5 6 Series E60 E61 E63 6-disc Compact CD Changer Without Magazine 6986081
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BMW F07 F10 Alternator Generator 221A Valeo N57N N57Z Diesel Engine 8570672
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Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399002900
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BMW F30 LCI B48X 330e Hybrid Electric High Voltage Battery 8677631
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BMW X5 Series E53 4.4i Petrol M62 B44 448S2 Engine Wiring Loom Harness 1438902
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Nissan Qashqai J10 Renault Koleos 2.0 dCi Engine Alternator 23100JD71A
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Airbag Module BMW F45 X1 F48 Mini F54 F55 F56 Air Bag Control Unit ECU 9367835
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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Bracket Mount 8200527320
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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BMW 5 X3 Series E39 E60 E61 E83 PDC Ultrasonic Parking Sensor Black 4687921
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Audi Q7 4L Radio Head Unit Navi CD DVD Player Changer 4L0910110A
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Mini Cooper One R52 Body Control Unit Basic Module BC1RD 6976989
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Ford Transit Custom 2.0 EcoBlue 130HP FWD Engine ECU GK21-12A650-CA Manual
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Mini R52 R53 Petrol W11 Compact Alternator Generator 105A 7515030
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Mercedes Vito W639 Coolant Radiator Fan Relay Control Module A0025424419
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Mercedes ML W164 W251 Air Module SRS Control Unit ECU A1648207426
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Audi A4 B8 A5 8T 2.0 TDI CGLD Engine Control Unit ECU 03L906018JH Manual
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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 .