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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BMW Z4 E85 E46 Hall Effect Switch Cable Microswitch 8236846
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Audi A6 C6 2.0 TDI BRE 140HP Engine Control Module ECU Set 03G906016HS Manual
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Mercedes ML W166 Fuse Box Electric Distribution Control Module A1665460143
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Starter Mercedes W177 W247 C118 1.5 OM608 Diesel Starter Motor A6089060100
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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM 4479009808
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Audi A4 B8 Petrol Engine Starter Motor Actuator 1.8 2.0 TFSI 06H911021D
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BMW 1 Series E87 CAS2 ECU Control Unit Key Reading Module 6943771
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Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489
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BMW F22 F30 LCI Control Unit Airbag ECU NO CRASH DATA 9348728
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Battery Cable Mercedes W176 W246 Negative Harness Lead Terminal A2469069600
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Mercedes-Benz M-Class ML W163 Fuel Pump Bracket Holder Housing A6110920140
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Ford Transit Mk7 Airbag Module ECU Control Unit Air Bag 6C1T-14B056-AD
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Distributor Box Mercedes W204 W207 W221 Connector Block Control Unit A0045467640
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MINI Cooper One Clubman R55 LCI Rear Bumper PDC Cables Wiring Loom Set 9271376
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Peugeot Boxer 2.2 HDI Diesel Engine Wiring Cable Loom Harness BU3T-12B637-CCB
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Skoda Octavia Mk3 5E MMI Multimedia SAT NAV Radio Stereo Head Unit 5Q0035874C
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Audi A4 B8 A5 8T A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181
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Audi TT 8J ESP YAW Lateral Acceleration Sensor 7E0907655A
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BMW F20 F21 F22 Body Control Module Unit FEM 8707679
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BMW X5 Series E53 Radio BMW Business Cassette Player 6918871
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BMW F10 F11 550i F12 F13 650i N63 408HP ECU Kit DDE 8610680 Key CAS4 Automatic
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Mercedes-Benz C CLC Class CL203 S203 W203 Fuse Box Module SAM Unit A2035454701
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Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802F
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BMW E93 LCI ECU Body Control Module H4 Junction Box PL2RR JBBFE IIIR 9298947
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BMW X5 E46 E53 Side Air Module Control Unit ECU 6912755 6962530
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BMW Z4 E85 Roadster Cabrio Convertible Roof Module Folding Top 6954776
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BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147226
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Fuse Box Mini R55 R56 R58 1 Electrical System Distribution 9213372
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BMW E82 Amplifier Hifi Audio Speaker System 9164379
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Mercedes R172 R231 Headlight LED Ballast Control Unit Module A1769009203
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BMW 1 Series E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9240523
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Mini Cooper R57 R57N LCI Roof Operating Unit Light Switch 3450543
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Piaggio X8 X9 Vespa Granturismo Immobilizer Module Control Unit CDI 58054R
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Mercedes-Benz M ML W163 Rear Bumper Parktronic Wiring Loom Harness A1635402209
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BMW E81 E87 E90 E91 LCI 118d 318d N47 Diesel ECU KIT DDE 8506375 CAS3 + 2 Keys
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Volkswagen Golf 7 1.6 TDI CLHA 105HP Engine ECU Kit 04L907309B Key + Ignition
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Audi A5 8T Harman Multimedia Sat Navi Radio CD Player Head Unit 8R2035666L
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Mini R55 R56 R57 Flat Cable Wiring Wire CAS 9158040
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Control Unit A2129068800
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Mercedes ML W163 270 CDI Automatic Transmission Control Module A0305452632
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BMW E90 E91 E92 Professional CCC Navigation System Controller 6949171
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BMW E60 Light Control Module Unit Lear LM II E6X LWR LCM 9137775
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Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760E
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Mercedes W211 Automatic Gearbox Transmission Module Control Unit ECU A0355454232
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BMW F90 M5 F92 M8 G11 G15 G20 G29 G30 G32 Fuel Pump Control Unit Module 7461741
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Audi A6 C7 Front Seat Control Module Unit Right O/S 4G8959760
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Headlight Module BMW F06 F12 F13 Xenon Headlamp Control Unit AHL 7316211
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Audi A3 8P Door Window Lifter Regulator Motor Front Right O/S 8P0959801F
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Mini F56 Module Active Sound Design Audio Control Module Harman Becker 9363496
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BMW F10 F11 On Board Screen Central Information Display Monitor 10,25" 9241826
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Mercedes ML W163 Module SAM Electronics Control Unit A1635457032
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Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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BMW F32 F36 F80 F82 M4 LCI Headlight Indicator Light LED Module Left N/S 7493231
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Audi S1 8X 2.0 TFSI CWZA 231HP Quattro Engine Control Unit ECU 06K907425C
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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 .