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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Audi Q3 8U Camera Module Rear View Parking Camera Control Unit 8U0907441
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Relay Box Mercedes ML W166 Engine Compartment Relay Module A1669063801
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Mercedes-Benz A-Class W168 Fuse Box ECU Cover Box A1685400024
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Mercedes-Benz E-Class W211 Battery Positive Cable Wiring A2115407907
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Body Control Unit BMW E46 E83 Basic Module GM5 Star12 6963026
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Peugeot 207 Seat Belt Warning Light Display Screen Dashboard 9665103980
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Audi A3 8P CCM Covenience Control Module Unit Relay Board ECU HELLA 8P0959433F
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Mercedes-Benz W203 W210 W220 M112 240 280 320 Engine Starter Motor A0051516501
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Audi A5 8T Park Parking Assist PDC Distance Control Unit Module 8K0919475B
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Audi A4 B9 Body Gateway Module ECU Control Unit 8W0907468C
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Mercedes C238 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2385407716
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BMW G30 G31 Fuse Distribution Box Holder Control Unit Bracket Carrier 9330542
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BMW X5 E60 E61 E65 E70 Longitudinal Seat Adjusment Drive Motor
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Mini Cooper S F55 F56 Petrol B46C B48C Engine Wiring Cable Loom Harness 8678958
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Audi Q5 FY Body Control Comfort Unit Module BCM Convenience Unit ECU 4N0907064AP
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Mini One R55 R56 LCI N16 1.6 98HP Engine ECU Kit DME 7620987 CAS 3 + Key Manual
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BMW E60 LCI 530xd X5 E70 3.0xd M57N2 235HP Engine ECU Kit DDE 8509035 CAS3 + Key
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BMW X6 71 Amplifier HiFi Stereo System Sound 9312471
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BMW F20 F30 Head Unit Display Screen Sat Nav Navigation Set 033830N 10,25"
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MINI R50 R52 One 1.6i 90HP Engine ECU Kit DME 7553735 + Key + EWS Manual
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BMW E92 Seat Covering Panel Sports Left Right Thigh Support Cover Black Leather
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BMW 1 3 Series E81 E82 E87N E88 E90 E91 E92 N43 Starter Motor
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BMW E65 E66 Dashboard Control Display Screen 8,8" Control Unit 9130563
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BMW 1 E87 LCI Max Brose Footwell Light Module Control Unit ECU FRM3R 9241008
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BMW E81 E87 E90 E91 E92 CAS 3 Key Reading Module Control Unit ECU 9147196
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Mercedes-Benz W203 CL203 180 Kompressor Engine Control Unit Module A2711536179
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BMW 1 Series E87 Footwell Xenon Light Control Module Lear FRMFA PL2 6956587
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VW Volkswagen Polo 4 9N Radio CD Player Stereo Audio Head Unit 6Q0035152D
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Mercedes-Benz B-Class W245 180CDI Engine Wiring Harness Loom Cable A6401504033
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Mercedes W221 Sound Audio Amplifier Control Unit Module A2218207689
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Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC
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Mercedes W211 Negative Battery Terminal Cable Wiring A2115420418
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Mini Cooper F54 F55 F56 F60 HSD Line Cable Wire HU - CID 9314634
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Audio Amplifier BMW F20 F21 F22 Harman Kardon Active Sound Design Unit 9390396
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Board Monitor BMW X5 X6 E70 E71 Sat Nav System Screen 8,8" 9194064
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BMW X5 E70 Footwell Light Control Module Unit LEAR PL4 FRM II 9176824
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Mini One R56 LCI 90HP N47N Diesel Engine ECU Kit DDE CAS 3 Key 8506666
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BMW F10 Light Control Footwell Module ECU Unit FRM3 9251975
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Mercedes W205 Ignition Control Unit A2139001223
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Mercedes-Benz W210 E 320 CDI Diesel Engine Control Unit Module ECU A6131530379
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Volkswagen Sharan 7N Engine Starter Motor Lucas 02E911024CX
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Mini One R50 W10 90HP Engine Control Unit ECU Kit DME 7545789 + EWS + Key Manual
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Central Gateway Module BMW F10 F11 F12 ECU Control Unit Lear ZGW-02 High 9284420
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Onboard Display BMW E60 E63 E64 E90 Dashboard Dash Monitor Screen 8.8" 9141809
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Head Unit Mercedes W447 Radio Navigation Audio 15 Control Unit A4479002405
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Audi A4 B7 Aerial Antenna Amplifier Module 8H0035225R
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Display Screen Mercedes C253 Vito W447 W448 Head Unit Touch Monitor A2539005009
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Mercedes C118 CLA200 282.914 163HP Petrol ECU Kit A2829003300 Key BCM Automatic
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BMW 3 5 X3 Series E46 E60 E65 E83 5 M54 Petrol Engine Starter Motor 2354693
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BMW F10 Tailgate Module Rear Boot Trunk Lid Control Unit ECU 7317512
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Mercedes W212 Valve Block AMG Air Suspension Control Unit Module A2123200558
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VW Volkswagen Sharan 7N 2.0 TDI 140HP CFFB Engine ECU Kit 03L906018HJ Key Lock
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BMW E93 Convertible Rear Bumper PDC Cables Wiring Loom Set 9133625
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Audi A4 B8 Door Wiring Harness Loom Front Left N/S Cabling 8K0971030M
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Mini R55 R56 Cooper S EGS Module Automatic Gearbox ECU Control Unit 7598857
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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 .