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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Ford Transit Mk8 Stereo Player Radio Head Unit LK2T-18D804-HH
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IVECO Eurocargo Loud Speaker Audyon 30W 8ohm 504078661
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Mercedes W164 Air Suspension Level Control Unit Module Airmatic A2515452432
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Seat Ibiza BLT 1.9 TDI Diesel Engine Unit Module ECU Manual 038906019NJ
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Saab 9-3 Stereo Radio Sound AMP Amplifier Control Unit Module 12773378
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Mercedes EQA H243 Relay High Voltage Performance DC 250 A Contactor A7899823000
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Audi A4 B8 A5 8T Power Steering Wiring Harness Cable Loom 8K2971111A
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Skoda Octavia Mk3 III 5E Front Camera Module Lane Assist Control Unit 5Q0980653E
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Mercedes ML W164 Fuse Box Battery Jump Start Terminal A1645400050
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BMW F11 Trunk Lid Boot Tailgate Lamp Plug Socket Wiring Rear Right O/S 8377240
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Pioneer SPH-DA120 Head Unit Apple Carplay Android Auto Bluetooth Media Player
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Mercedes W221 Door Module Front Left N/S Driver Control Unit ECU A2168206525
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Land Rover Range Rover Sport L320 PDC Module Parking Assist Unit CH2215K866BA
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SAAB 9-3 Radio Stereo CD Player Head Unit 12779270
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Mini Cooper R60 R61 N16 122HP Engine Control Unit ECU DME 8625068 Automatic
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Audi Q7 4L Trailer Hook Tow Bar Control Module Unit 4E0907383C
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Audi Volkswagen Varta Car Battery AGM 12V 75Ah 800A 7P0915105A
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Mini Cooper R60 ECU Footwell Light Module Unit AHL EKS PL3 FRM3R Lear 3456393
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Volkswagen Golf Mk7 VII Front Right O/S Door Loom Wiring Harness 5G4971121MT
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BMW E60 E87 E90 120d 320d 520d M47N2 Engine Control ECU Kit DDE 7803373 CAS3
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Ford Transit Custom Radio Stereo CD Player Head Unit JK2T18D832BL
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BMW F10 F11 525d N47S1 218HP Engine Unit Module 8582555 CAS4 Keys Automatic
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BMW E60 E61 Door Wiring Loom Harness Co-Drivers Passengers Side 9163145
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Volkswagen Golf Mk6 1.4 TSI CAXA 122HP Engine Control ECU 03C907309A Manual
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BMW X5 X6 E70 E71 Gearbox Emergency Release Unlocking Device Automatic 7590203
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BMW 7 Series E65 E66 E67 Control Unit Voice Input System Module 6924092
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SAM Module Mercedes C205 GLC X253 Coupe Rear Control Unit A2229007109
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Mercedes W447 114 CDI OM651.950 136HP Engine Control ECU Kit A6519002803 Manual
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Mercedes W211 Air Module Control Unit ECU Module A2118203385
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Mini Cooper R55 R56 R57 CCC CD DVD Navigation Sat Nav Head Unit 9185540
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Peugeot 207 CD Player Radio Stereo Audio Head Unit 96639628XT00
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Telematics Module BMW F20 F21 Bluetooth Teleservices GPS Control Unit 2622605
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Renault Master 3 2.3 DCI M9T Engine ECU Kit 237105093R USM 2 Keys Lock Manual
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BMW F30 LCI 320d ed B47 163HP Engine ECU Kit DDE 8591073 FEM + Key Manual
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Peugeot 3008 1.6 HDI Diesel Engine Wiring Cable Loom Harness 9678303780
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Audi S3 8Y Keyless Entry Control Module Unit ECU 5WA959436Q
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Audi Q5 FY Rear Door Wiring Harness Loom Cable Left Right N/O/S 80A971687Q
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Audi A1 8X Front Passenger Door Wiring Harness Loom Cable Left N/S 8X2971030K
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Headlight Module BMW F36 Headlamp Control Unit FLE2 MAX 7429125
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Audi A4 B8 A5 8T Front Lamp Headlight Range Control Module 8K5907357B
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Multimedia Module Mercedes W204 Ipod Connection Interface Unit A0048270345
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Audi SQ5 8R 3.0 TDI CGQB Quattro 313HP Engine Control ECU 8K5907589 Automatic
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Hifi Amplifier BMW F06 F12 LCI F13 LCI System Sound System Module 9313044
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Mercedes W213 Door Control ECU Module Front Left N/S A2139005213
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Starter Mercedes W177 W247 C118 1.5 OM608 Diesel Starter Motor A6089060100
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Mercedes W206 Front Windscreen Windshield Lane Assist Camera A2069008015
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BMW Z4 E89 Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 6827064
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SAM Module Mercedes Ml W164 Fuse Box Front Relay Control Unit A1645407662
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Mercedes W176 W246 A180 B180 270.910 122HP Engine ECU Kit Key Lock A2709002100
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Renault Master 3 Radio CD Player Bluetooth Head Unit USB MP3 281154729R
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BMW F21 Crush Control Air Module Unit ICM Plus ECU 6862758
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511507386
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BMW F10 F11 F30 Petrol N20 ECU DME Engine Control Unit Module 7644747 Manual
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Mercedes W211 Front Fuse Box SAM SRB Module Relay Control Unit A2115454201
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Audi A3 8P CFFB 2.0 TDI 140HP Diesel Engine ECU Kit 03L906018AB Ignition + 2 Key
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Mercedes-Benz E-Class W210 Electrical Fuse Relay Box Storage Trim A2105402124
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Volkswagen Golf 5 1.9 TDI 105HP BXE Engine Control Unit ECU Manual 03G906021PM
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Mercedes W204 C250 CDI 651.911 204HP Engine Unit ECU Kit A6519007500 Automatic
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Mini Clubman F54 Battery Cable Negative Terminal Wiring 6832695
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7812502 + CAS3 + Key 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 .