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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Starter Mercedes Sprinter W906 Diesel Engine Starter Motor Valeo A0061517401
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Seat Ibiza Volkswagen Polo Mk5 6R 1.2 Petrol Alternator Generator 03D903025J
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Module Mercedes W639 Automatic Transmission Control Module Unit A0325453832
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BMW X5 E60 E61 E65 E70 Front Left N/S Seat Angle Adjustment Drive 9146329
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BMW F10 F11 LCI Xenon Adaptive Headlight Ballast Control Module Unit 7355073
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Alternator BMW F20 LCI Mini F30 F56 F60 Alternator Generator DENSO 150A
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Door Module Mercedes C219 Front Door Left N/S Control Module A2198201926
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Audi SQ5 8R 3.0 TDI CGQB Diesel Engine Alternator Generator 059903018Q
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Alternator Generator Mercedes W204 W207 Petrol Engine Bosch 150A A0009062003
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BMW 1 X1 Series E81 E84 E87 RR1 Battery Lead Cable Negative IBS 6948335
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Opel Combo Corsa Display Screen Dashboard Multifunction Monitor Unit 009164455
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Volkswagen Sharan 7N Air Module ECU Sensor Control Unit 7N0959655C
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BMW 5 E60 E61 Wiring Loom Harness Co-Drivers Passengers Side 6982360
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BMW 3 Series E90 E91 E92 AUX USB Lead Cable Wire 61129202724 9202724
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Alternator Mini R55 R56 R57 R57 R58 LCI Generator Petrol 7574365
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BMW Z4 E89 Roadster Control Unit EMF Rear Wheel Brake Module 6794260
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Audi A5 8T 2.0 TFSI CNCD Quattro 224HP Engine ECU Kit 8T2907115 Key Ignition
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BMW X3 F25 Sat Navi Radio CD Player Head Unit 9294196
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Mini Cooper R50 R53 R56 R57 R58 Fuel Tank Heat Insulation Plate 2757771
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Ford Transit Custom Rear Bumper Parking Sensor Wiring Harness Loom BK2T15K867DC
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Alternator Mercedes W204 W207 OM651 14V 150A Engine Start/Stop A0009060401
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BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8518424 + FEM + Key Manual
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BMW E87 E90 E91 118i 318i N46 129HP ECU Kit DME 7565300 + CAS3 + Key Manual
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511502790
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BMW F10 F11 Seat Loom Cable Lordosis Lumbar Pump Control Front Right O/S 9230617
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Mercedes CLC CL203 Trunk Lid Tailgate Left N/S Wiring Cable Harness A2035406609
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BMW G20 320d B47D 190HP Engine Control Unit Module ECU Kit DDE 8475468 Key BDC
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Ford Fiesta MK7 Battery Box Tray Housing Holder Bracket 8V2110718AB
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BMW E87 LCI E90 118i 318i N43 143HP ECU Engine Control Unit DME 7580279 Manual
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Mini One R50 1.6 W10 90HP Engine Control Unit ECU Kit DME 7557395 Manual
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Ford Transit Mk8 Airbag Module ECU Control Unit Air Bag BK3T-14B321-AD
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BMW 6 Series E63 E64 LCI Rear Bumper PDC Loom Cables Wiring Set 9126978
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Mercedes-Benz C CLK W202 W208 Left N/S Parking System Warning Display Screen
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Audi A3 8V Air Module Control Sensor ECU Unit 5Q0959655L
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Ford Transit Mk7 2.2 TDCi Euro 4 Diesel Engine Wiring Loom Cables 6C1T12B637JF
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Audi A5 8T Headlight Lightning Control Module LCM Unit ECU 89500248
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Mini Cooper S R55 R56 LCI N18 1.6 184HP ECU Kit DME 7612190 + CAS3 + Keys Manual
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VW Volkswagen LT 35 Glow Plug Module Relay Control Unit Black 2D0911253
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BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8574095 Key FEM Automatic
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Mini Countryman F60 Audio Amplifier Hifi Unit Active Sound Design System 5A4E600
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC Unit 9258278
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Mercedes CL203 CLC200 CDI 122HP M646.963 Engine ECU Kit A6461501934 Key Lock
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BMW E60 E81 E87 E90 E91 E92 E93 CAS3 Control Unit Key Reading Module 9278745
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BMW E64 E85 Sensor B Pillar Air Module Right O/S 6940300
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BMW Z4 E85 M54 Roadster Wiring Loom Harness Engine Ignition Module
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Volvo V70 2.4 D5244T4 Diesel Engine Control Module ECU 30729826A Automatic
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715451001
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Audi Q7 4L S8 D3 Interface Control Unit Module 4E0035785B
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Alternator Generator Mercedes W211 S211 OM646 Diesel Engine 200A A0131545902
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Ford Transit Connect 1.8 Diesel Engine Control ECU Module Manual 4S4112A650BC
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Battery Cable Mercedes Vito W639 Negative Lead Wiring Harness A6395460121
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Module Mercedes SLK R171 Automatic Transmission Control Module A0005457916
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BMW E81 E87 E90 E91 E92 LCI Parking Control Module Unit PDC 6982395
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BMW 5 F10 F11 On-board Central Information Display Screen Monitor 6,5" 9289007
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Mercedes W176 A180 CDI OM607.951 BE 109HP Engine ECU A6079002200 Manual
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Diversity Antenna Amplifier Mini F57 Convertible DAB Module Unit 9309991
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Mercedes W204 SAM Module Fuse Box Relay Control Unit A2045450169
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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 .