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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Audi A3 S3 8V Front Door Wiring Harness Loom Cable Passenger Side 8V4971030AD
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Mini Cooper One R52 Body Control Unit Basic Module BC1RD 6976989
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Audi A5 8F Cabrio Air Module Control Unit ECU Crash Control Sensor 8F0959655C
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Renault Clio Trafic Laguna Captur Relay Blue 4 Pin G.Cartier 20240077 8200766081
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Mercedes W212 Control Unit Module Bracket Holder Mount A2125452640
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Mercedes Sprinter W906 Radio CD Player Audio Bluetooth Head Unit A9069005103
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Mercedes Vito W639 115 CDI 646.982 Engine Control Unit ECU A6461501091 Automatic
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BMW X5 E70 Front Seat Control Unit Module ECU Left Right N/O/S 9149834
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Audi A3 8V Diesel Engine Starter Alternator Electrical 14V 140A 03L903023L
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Citroen Berlingo Peugeot Partner CD Player MP3 Radio Stereo Head Unit 9666968177
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Fiat Doblo Engine Wiring Loom Cable Harness 55230143
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Audi A4 S4 B7 Servotronic Steering Control Unit Module 8E0907307G
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BMW E46 Radio Business Cassette Player Audio Control Head Unit 8383149
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Mercedes W204 C207 W212 E250CDI OM651.924 204HP Engine ECU A6519007500 Automatic
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BMW E61 LCI Body Gateway Module KGM HIGH 27 D-Can LEAR 9197317
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BMW E90 E91 LCI N47N 320ed 320d ed 163HP ECU Engine Control DDE 8510829 Manual
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BMW X3 X5 E53 E63 E83 Front Seat Belt Tensioner Buckle Connector Cable 8255704
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BMW X1 E84 18dX N47 ECU Engine Control Unit Kit DDE 8512499 CAS3 + Key Manual
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Mini Cooper Countryman R60 R61 Aerial Roof Antenna Base Module 9803844
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BMW Z4 Series E85 E86 Body Control Unit Module GM5 Star12 Delphi 6919275
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Part no. ACCUSTART Standard 70Ah Accumulator
ACCUSTART Standard Accumulator Battery 70Ah 640A 12V
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Mercedes X117 CLA 45 AMG 4-Matic M133.980 Engine Control ECU Kit A2709002100
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BMW E60 E61 535d M57N Engine Control ECU Kit DDE 7796678 CAS2 2 Keys Automatic
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Audi A3 8V MMI Multimedia Interface Unit Module Control ECU 8V0035036E
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Seat Leon Mk3 5F Deployment Crash Impact Sensor Front Centre 3Q0959651
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BMW 5 Series E60 E61 LCI 525d M57N2 Engine Wiring Loom Harness DDE Automatic
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Mini Cooper S R53 W11 170HP Engine ECU Kit DME 7553735 + Key + EWS Manual
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BMW Mini Cooper One R56 LCI High PL3 SPEG H4 Fuse Distribution Box 3457163
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BMW X3 F25 Engine Wiring Start/Stop Manual Gearbox Module Loom Cable 7811232
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BMW X5 F15 LCI High Voltage Battery Cable Wiring Harness Loom EME 9399624
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Alternator Audi A6 C6 3.0 TDI Diesel Engine Generator 059903015R 1068673
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VW Sharan 7N Voltage Stabilizer Converter Electric Control Unit Module 3AA919041
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A/C Module BMW X3 G01 G20 G30 Climate Control Unit Air Conditioning 5A9C7F9
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BMW E81 E82 E83 E84 E85 E87 E90 Petrol Denso Starter Motor 7524843
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Radio Head Unit Mercedes W176 Media Player Navigation Unit A2469002318
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Mercedes C219 CLS350 CDI OM642.920 Engine Module ECU A6421501230 Automatic
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Ford Transit Mk6 Indicators Flasher Hazard Lights Relay Fuse Unit 1C1T13350BA
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BMW 3 Series E46 Cable Loom Door Rear Left Right N/O/S Wiring Harness 8378338
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Peugeot 307 3008 1.6 HDI Negative Battery Terminal Cable Wiring 9676811880
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Mercedes Vito W639 Coolant Radiator Fan Relay Control Module A0025424419
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BMW 5 Series E60 520i M54 170HP ECU Kit DME 7533651 + CAS2 + Key Automatic
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Ford Transit Engine Starter Motor Actuator Starter CC1T14000AB
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Part no. 8588448
BMW 1 3 Series F20 F21 F30 LCI Wiring Harness Engine Glow Plug Module 8588448
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Part no. 7604782-1
MINI Cooper S R55 R56 LCI R60 Alternator Generator 150A Petrol 7604782
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Part no. CVS-012-5
CVS-012-5 Expansion Module Electrical Unit Light Control Module
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Part no. 8X0907063AF
Audi Q3 S Line BCM Body Control Module Unit ECU 8X0907063AF
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SAM Module Mercedes W164 W251 X164 Control Unit Fuse Relay Box Rear A1645409962
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Mercedes W910 OM651 Engine Alternator Generator Bosch A6519065200
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Audi A6 C6 2.0 TDI Alternator Generator 180A 14V 03G903016A
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BMW 3 5 7 Series F30 LCI 330e G11 G30 Fuel Pump Control Unit Module 7439743
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Audi Q7 4L Blind Spot Monitoring Radar Unit 4L0907568A
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Wiring BMW X5 F15 M Sport Rear Park Assist PDC Wiring Harness Loom 9361150
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BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8574351 Lock CAS3 Key Manual
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Mercedes ML W164 Distronic Radar Sensor Cruise Control Unit Module A2165402945
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Acceleration Sensor Mercedes S124 R129 Front Seat Belt Locking Retractor Module
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BMW F06 F07 Body Control Comfort Module Unit ECU 9299946
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Mercedes C118 W177 W247 Battery Box Tray Trim Housing Cover A1776204300
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BMW E82 X1 E84 E87 LCI 120d N47 177HP Engine ECU DDE 8512498 Manual
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BMW 6 Series E63 E63N E64 LCI Battery Cable Lead Positive Underfloor
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BMW E60 E63 Body Control Module ECU Control Unit 9136039
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Peugeot Partner Glow Plug Relay Control Unit Module 9640469680
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Part no. 6764018
BMW Z4 E85 MINI Cooper One R50 R52 R53 Speed Sensor
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Part no. 7796571-2
BMW X3 Series E83 2.0d 150HP Engine ECU Kit DDE EWS3 Key 7796571 Manual
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Part no. VARTA Silver Dynamic 77Ah Accumulator
VARTA Silver Dynamic Accumulator Battery 77Ah 780A 12V E44
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BMW 3 4 Series F80 M3 F82 M4 Adapter Lead Fanfare Horn Cable 9344840
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Part no. 7503611
BMW X5 Series E53 3.0i M54 Engine Wiring Loom Harness Module 7503611 7503617
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Part no. 6944536
BMW 5 Series E61 Positive Battery Cable Plus Pole Lead 6944536
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BMW Z4 E85 Petrol M54 Wiring Loom Harness Engine Gearbox Manual 7524109
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BMW G11 G12 G20 HV Accumulator Battery Negative Ground Cable Wiring Plug 8621016
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BMW F10 F11 530d N57 245HP Engine Control Unit ECU Module DDE 8511385 Automatic
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Part no. A1669008222
Mercedes GLA X156 Central Display Infotainment Sat Nav Media Screen A1669008222
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Part no. 8F0971030AM
Audi A5 8T Front Door Electric Wiring Loom Harness Passenger's Side 8F0971030AM
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Mercedes W164 ML320 OM642.940 Diesel Engine Unit ECU Kit A6421509478 + Keys
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BMW F80 M3 LCI Telematic Control module Comunication Unit ATM ECE 4G 6820726
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BMW Z4 Series E85 E86 Body Control Unit Module GM5RD 12V 6931707
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BMW 3 5 7 X5 E38 E39 E46 E53 M54 Engine Generator Alternator 120A
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Mercedes W168 ESP + HBA Electronic Stability Program Control Module A1685453532
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Renault 4-Pin Blue Relay 12V 20A G.Cartier 8200766093
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Mini F54 F55 F56 F57 F60 Petrol Engine Starter Motor 7649090
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Mercedes-Benz W169 W245 Petrol M266 Engine Control Module A2661538479 Manual
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Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman 8E5035223
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Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519000700 Manual
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BMW 5 X3 Series E60 E61 E83 Front PDC Parking Distance Sensor Mysticblau Blue
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Mercedes-Benz M ML W163 Rear Window Heater Cable Harness Wiring A1635409108
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Earth Ground Cable Land Rover Freelander 2 Line Strap Battery Lead 7G92-14324-AE
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Audi S8 D3 Multimedia Display MMI Mechanism Carbon Fiber Look 4E0919603K
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Whelen Euro-1 Vehicle Siren Amplifier Booster Module 200W 16A 01-086A664-01
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Module Land Rover Freelander 2 ECU Front Door Lock Control Unit 6G9T-14B533-EL
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Jeep Grand Cherokee 2.7 ENF Engine Control Unit ECU P56044418AB Automatic
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Part no. 7640004-9
Mini One R55 R56 Petrol N12 1.4 95HP Engine ECU Kit DME 7640004 CAS3 Key Manual
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Part no. 9217234
Module Bracket BMW X3 F25 X4 F26 Control Unit Holder Carrier 9217234
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Part no. 8379941
BMW X5 Series E53 Interior Roof Trim Cover Ultra Sonic Module Alarm 8379941
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Part no. 6927706
BMW 5 6 Series E60 E63 E64 Tubing Duct Battery Cable Lead Positive Underfloor
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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 .