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 Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CD
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Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit
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Audi A7 4G A6 C7 Daytime Running Lights DRL LED Headlight Module Unit 4G0907697J
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CD Player BMW E60 E61 LCI E63 E64 Radio Stereo CHAMP Business Head Unit 9187903
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Mini Cooper R56 Footwell Light Module ECU LOW EKS Lear PL3 FRM II 3453744
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BMW X5 SERIES E53 3.0i M54 Engine Wiring Loom Harness Module 7531986
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Mercedes-Benz A B Class W169 W245 Alternator Generator Petrol 90A A2661541202
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BMW E60 Light Control Unit Module LEAR LM E6X LWR 6943283
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Telematics Module BMW F01 F07 F10 Bluetooth Combox Telematik ECU 9244188
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Starter BMW F10 F07GT F13 F03 X5 E70 Petrol N63 Starter Motor 1.6 KW 7556131
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BMW F98 Engine Starter Motor 8671505
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BMW E87 ECU Body Control Module L2 ECU Junction Box 6971961
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VW Volkswagen Sharan 7N Gateway Control Unit Module ECU 7N0907530S
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BMW E81 E87 E90 E91 E92 E60 E61 Loudspeaker Speaker Logic7 L7 HiFi Audio 9143121
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BMW F10 F11 Plug Bumper Front Trim Dummy Plug Right O/S Panel 7207150
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Volkswagen New Beetle Air Module Control Unit Sensor ECU 6Q0909605AL
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Mercedes R171 SLK200 Module Front Door Right O/S Control Module Unit A1718200626
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BMW F10 F20 F30 Reversing Camera ECU Control Unit Module 9302256
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BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9315094
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Mercedes Vito W447 Head Unit Radio Navigation GPS Nav Display A4479009005
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BMW 7 Series E65 E66 Dashboard Control Display Screen 8,8" 6960096 6967626
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Fuse Box BMW E87 E90 E91 E92 E93 Front Power Distribution Relay Box 6906607
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Mercedes W169 A150 M266.920 95HP Engine Control Unit ECU Kit A0034466040 2 Keys
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Fuse Box Mercedes C118 W177 W247 Battery Relay Terminal A1775404107
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BMW X5 F20 F21 F30 E70 LCI Trunk Lid Reversing Camera Rear 9240351
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Mercedes W221 Audio Sound Speakers Amplifier Control Unit ECU A2219008103
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BMW X5 E53 Basic Body Control Unit Module GM3 6946947
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BMW 1 Series E87 BODY CONTROL MODULE L2 61356968836 6968836
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BMW Z4 E85 Petrol M54 Wiring Loom Harness Engine Automatic Gerabox
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Mercedes SLK R171 Air Module Bag SRS Control Unit ECU A1718205826
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BMW 3 Series F32 F82 M4 Wiring Loom Front Door Cable Passenger Side 9337221
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Audi Q7 4L Front Memory Adjustment Module Control Left Right N/O/S 4L0959760
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Mercedes W168 Alternator Generator A0121544502
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BMW 3 5 Series E60 E90 325i 525i N52 218HP DME ECU 7567178 Kit CAS3 Key Manual
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BMW 1 3 Series E81 E87 E90 E91 E92 Amplifier Sound Audio System Alpine 0445683
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Mercedes W204 Steering Wheel Air Module Driver's Side Black A0008605903
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Dashboard Monitor BMW X5 E70 X6 E71 Onboard Display Screen 8,8" Unit 9232896
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BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8603352 Automatic
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Mercedes W221 S350 BlueTEC OM642.862 Engine ECU Kit Ignition + Key A6421508900
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Mercedes S350 W221 Seat Control Module Front Left N/S A2218707393
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Volkswagen Touran 1T Scirocco III BCM Body Control Module Unit ECU 5K0937087AD
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Audi A1 8X PDC Assistance Parking Distance Control Module Unit ECU 8X0919475AE
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Mercedes W169 W245 A B 160 180 200 CDI OM640 Alternator Generator A6401540502
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Audi A3 8V 30 TDI DGTE Diesel Fuel Pump Module Control Unit ECU 3Q0906121B
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Audi Q3 8U Tailgate Lift Boot Lid Control Unit Module Trunk 8U0959107A
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Head Unit BMW F30 F31 F32 X3 F25 Navigation Sat Nav Basic Media Player 9350332
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Volkswagen Touareg 7L 3.0 TDI Diesel Engine Starter Motor 059911024J
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Mercedes W202 W210 Engine Cooling Radiator Fan Control Unit Module
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BMW X5 E70 CAS3 Control Unit Key Reading Module 6943838
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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 .