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 12V Accumulator Battery 74Ah 680A A0009823108
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Volkswagen Golf 7 Audi A1 A3 Seat Ibiza Petrol Engine Starter Motor 02M911024J
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Alternator Generator Mercedes Vito W639 Sprinter W906 14V 180A A6461540102
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Mini Cooper S R52 R53 Automatic Gearbox Basic Control Unit EGS 7540984
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Head Unit Mercedes C205 Radio Player USB Sat Nav Harman A2059008430
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Alternator Mercedes W211 Alternator Generator Bosch 14V 180A A2721540102
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Ford Transit Connect Cable Alternator Starter Motor Battery Wiring FV6T-14A280
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Mini One R56 N12 1.4 N12B14A 95HP Petrol ECU Kit DME 7589971 + CAS3 + Key
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BMW X3 E83 3.0d M57N2 218HP Engine Control Unit ECU DDE 7805350 Automatic
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Mercedes-Benz S W221 Fuse Box Power Management Control Unit Module A2215406750
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Mini Cooper F56 Wiring Driver's Loom Front Right O/S Door Cables 9338910
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BMW Z4 E85 2.5i M54 192HP Engine ECU Control Unit Module DME 7527072 Manual
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BMW F20 F21 LCI M140i B58 Petrol ECU Control Unit Module DDE 8689723 Automatic
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BMW X3 F25 CIC Sat Nav Professional Infotainment Radio Player Head Unit 9293404
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Module DDE 8510221 Manual
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Mini Cooper R60 R61 ALL4 N16 122HP Engine Control Unit ECU DME 8652745 CAS3 Key
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Audi A8 D4 4H Front Door Control Module Unit ECU Driver's Side 4H0959793R
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BMW E60 E90 335d 535d M57N2 Engine Control Unit Module ECU DDE 7805586 Automatic
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BMW Varta AGM Car Battery 12V 70Ah 720A 9381780 9878490
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BMW 3 5 Series Mini Cooper E60 E93 R55 R56 R60 IBS Negative Battery Lead
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BMW E81 E87 LCI 116i E90 316i 115HP N45N Engine Unit ECU DME 7585249 Automatic
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Mercedes W204 W212 Tyre Pressure Check Monitor Control Unit Module A0009003704
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Dashboard Monitor BMW G30 G31 Onboard Central Display Screen 10,25" 6810511
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BMW 1 3 X1 Series E81 E82 E84 E87 E90 E91 E92 Power Distribution Box 6971370
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Mercedes W212 E350 CDI OM642 Engine Unit ECU Kit A6421508900 Keys Lock Automatic
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BMW F30 F31 Wiring Loom Harnes Front Passenger Door Cables Harness 9326437
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BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Kit DDE 7811151 CAS3 Key
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BMW G30 G31 X3 G01 Control Unit Module Heater Ionizer ECU 9871349
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Seat Wiring BMW X3 F25 X4 F26 Driver's Side Loom Cable 9316654
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Mercedes W205 Navigation 2015/2016 Update SD Card Road Map Europe A2139060303
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BMW Z4 Series E89 Antenna Base 9140245 65209140245
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Audi TT FV Mk3 8S Gateway Module Interface Data Bus Control Unit 8S0907468D
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Mercedes W447 Glow Plug Relay A622900130
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Halfords 12V Calcium Accumulator Battery 76Ah 680A HCB096
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BMW X5 E38 E39 E46 E53 GPS Navigation System Computer Unit 6922720
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Audi RS6 C7 4G Air Suspension Module Regulation Control Unit WABCO 4G0907553F
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Audi RS4 B8 Body Control Unit Module ECU BCM 8K0907063DJ
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Ford Connect Diesel Engine Wiring Cable Loom Harness 7T1T9H589BD
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Mercedes W639 113 CDI 651.940 136HP Engine Module ECU Kit A6519009302 Key Lock
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BMW E92 LCI Footwell Xenon Light Control Unit Module Lear FRM3R PL2 9240528
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Dashboard Monitor BMW X5 E70 X6 E71 Onboard Display Screen 8,8" Unit 9232896
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BMW F45 F46 X1 F48 Air Duct Front Slam Panel Flap Control Motor Drive E05078-100
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Engine Wiring Mercedes W906 Diesel OM651 Cable Loom Harness A6511502900
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BMW F20 F30 F32 120i 320i 420i N20 184HP Engine Unit ECU DME 8631725 Automatic
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Mercedes W202 C208 W208 Alarm Sensor Module Unit A2088206010
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Mercedes-Benz E W210 Battery Starter Alternator Positive Plus Cable A2105401530
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Audi A5 F5 Headlight Lamp LED Ballast Control Power Module Unit ECU 4K0941572DD
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BMW X3 X5 E53 E83 Four Wheel Drive Transfer Box Control Unit Module 7599883
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Mini Countryman R60 Footwell Light Module High EKS ECU PL3 FRM3R 3457031
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Audi A3 8P 2.0 TDI 170HP BMN Engine Control Unit ECU 03G906018DN Automatic
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BMW X5 F15 X6 F16 30dX N57N 258HP Engine ECU Kit DDE 8586540 BDC Key Automatic
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Display Screen BMW F20 F21 LCI Navigation Infotainment System 8,8" 9387548
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Mercedes W205 Center Console Ambient Lighting Light Wiring Harness A2055402324
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Engine Wiring BMW E39 Petrol Engine M52 Ignition Coil Wiring Harness 1439207
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BMW i3 I01 Hybrid Rex Petrol Fuel Pump Control Unit Module 7429966
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Mercedes W447 Electronic Module ECU Control Unit A4479000002
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Skoda Octavia RS 5E 2.0 TSI CHHB 220HP Engine Control ECU 06K907425B Automatic
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Audi A7 4G Rear Door Control Module Unit ECU Left Right N/O/S 4G8959795H
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Mercedes SLK R172 Fuse Relay Box Cover Cap Top Trim A1725400182
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Ford Transit Mk7 Engine Cooling Fan Radiator Module Control Unit 940002904
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Volkswagen Polo Mk5 6R Radio Multimedia Display Navigation Unit 6C0919603B
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BMW X3 E83 LCI Petrol N52N Cable Alternator Starter Base B+ 3415607
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Ford Transit Custom Adblue Harness Loom Wiring 2.0 EcoBlue GK21-14D378-AA
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BMW F90 M5 G11 G30 Fuse Box Power Distribution Unit Front Right O/S 9350313
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Mercedes W639 Vito OM646 111CDI 116HP Engine Unit Module ECU A6461501191 Manual
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Mercedes Sprinter W907 Battery Cable Alternator Wiring Loom Harness A9075400186
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Audi Q7 4L Onboard Supply Body Control Comfort BCM Unit Module 4F0907279C
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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 .