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 A5 8T Crash Impact Sensor Unit Module Air Unit 8K0955557B
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VW Volkswagen Crafter I Headliner Roof Alarm Movement Sensor A6388200310
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GPS Navigation BMW E81 E90 LCI Business System Car Infotaiment Computer CIC
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Audi A6 C7 Fuel Pump Control Unit Module 4G0906093F
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BMW E60 LCI Radio Player Audio System Controller Head Unit 9195756
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Rear Module Mercedes C238 PDC Parking Assistant Parktronic Control A0009006616
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BMW E60 E61 Radio Player M-ASK M-Audio System Controller CD Head Unit 6983843
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BMW Mini Countryman R60 Footwell Light Module High EKS ECU LEAR PL3 FRM 3457403
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BMW E65 E66 Navigation Sat Nav GPS System DVD Player 6948983
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BMW 7 Series E65 E66 Dashboard Dash Sun Solar Sensor Speaker Cable 6910381
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Mini Cooper R58 Coupé Footwell Light Module High EKS PL3 FRM3R 3457402
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BMW Z4 Series E85 Roadster Driver's Side Door Wiring Loom Cable 6933950
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Mercedes-Benz W245 Front Bumper Parking Sensor Parktronic Wiring Cable Harness
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Headlight Ballast Control BMW F06 F12 F13 F15 F16 LED Adaptive Module 7316210
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BMW E60 E63 Body Control Module ECU Control Unit 9136039
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BMW E60 E61 LCI 550i N62N 367HP Engine Unit Module ECU DME 7577664 Manual
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Part no. E82 Wiring Loom Set PDC rear -1
BMW 1 Series E82 Wiring Loom Set Rear Complete Harness PDC Parking Sensor
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BMW E70 E81 E90 E91 Mini R56 R57 R60 R61 Bluetooth Module Combox Media 9248178
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Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064CQ
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Screen Ring Mini F55 F56 F57 Navigation Display Head Unit Trim Cover 9843968
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Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 8E0959651B
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Alternator Mercedes R172 SLC 43 AMG Petrol OM276 200A Valeo A0009068806
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BMW X3 E46 E83 Navigation Computer GPS System DVD Player Unit 6971353
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BMW X3 E83 LCI Crash System Control Unit Module ECU 3453791
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BMW E90 E91 LCI N47N 318d 143HP Engine ECU Kit DDE 8510832 CAS3 + Key Manual
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Seat Module BMW F20 F30 F32 F33 X1 F48 X5 F15 Front Control Unit ECU 9459681
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Door Cable Mercedes W212 Wiring Loom Front Left N/S Passenger Side A2124401651
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Wiring Mercedes W203 W209 W211 M272 Engine Wiring Module Harness A2721501433
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Audi A3 8V Body Control Comfort Unit Module BCM Unit ECU 5Q0937084AJ
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BMW E61 Light Control Unit Module LEAR LM E6X MIT AHI 6983539
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Head Unit Mercedes W167 W177 Audio Stereo Radio Player Control Unit A1679001414
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Volkswagen Golf Mk7 Seat Leon 5F Media Port Socket Connection Adapter 5G0035222
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Mini Cooper One R57 Footwell Light Module High EKS ECU PL3 FRM3R Lear 6827072
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Range Rover L538 Automatic Gearbox Transmission Control Unit CEJ32-14C336-AA
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Audi A1 8X 1.4 TFSI CAVG 185HP Petrol Engine ECU Kit Ignition + Key 03C906027CF
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Mercedes W204 OM651 14V 150A Alternator Generator Engine Start/Stop A0009060401
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Hyundai H-1 2.5 D4CB Engine Starter Motor 361004A000
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Radio CD BMW E81 E87 E90 E91 E92 LCI Professional DAB 9243925
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Mercedes C140 W202 Engine Cooling Radiator Fan Control Unit Module A0165459632
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Mercedes A238 Convertible Folding Top Roof ECU Module Control Unit A2389000501
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Mercedes W177 W213 Engine Wiring Harness Loom E220d Diesel A6541500800
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Skoda Octavia 5E MMI Multimedia Interface Unit Module Control ECU 5E0035842A
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Mini Cooper S R53 Petrol W11 Engine Control Unit ECU DME Manual 7527610
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Mercedes W118 W177 W247 Front Radar Distance Control Unit Module A0009056121
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BMW 7 Series E65 E66 DVD Navigation System Computer Unit EXCH 9122860
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Seat Wiring Mercedes C117 W176 W246 Loom Harness Cable Left N/S A2465409711
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BMW X5 E53 Radio Stereo Screen Multifunctional Display Head Unit 6914605
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BMW X5 X6 E70 E71 M57N2 Alternator Generator 180A VALEO 7801173
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Ford Transit Custom Mk1 Fuel Tank Sender Wiring Harness Loom GK2T-14A069-AB
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BMW X5 E53 Amplifier Hifi Speaker System 65128379376 8379376
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BMW E90 E90N E91 E91N E92 E92N E93 LCI NOX Wiring Loom Cable 7541009
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Audi S5 F5 Blind Spot Radar Distance Control Module Right O/S Master 4M0907566D
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BMW 1 2 Series F20 F21 F30 Brake Disc Protection Plate Front Right O/S 6873418
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Audi TT 8J 3.2 V6 BUB Ignition Wiring Harness Guide Trim 022971615B
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Mercedes C205 Keyless Go Module Unit Bracket Mount Holder Support A2055455440
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Tailgate Lift Module BMW G20 G30 G12 Rear Boot Trunk Lid Control ECU 5A19DB2
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BMW 1 3 Series E81 E87 E90 E91 E92 E93 Parking Control Module Unit PDC 6974020
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VW Volkswagen Touareg 7L Headlight Headlamp Adapter Cable Wiring Loom 7L6971071B
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Range Rover L322 3.0 Starter Motor Diesel Engine Denso 7787925
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Mercedes S204 Rear Trunk SAM Central Electric Base Control Module A2049065602
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BMW X1 E84 Radio Navigation Head Unit Android CarPlay Display 10.25 XRC8667
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BMW X5 E53 Basic Body Control Unit Module GM3 6960249
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Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069003502
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BMW 4 Series F33 F83 M4 Switch Folding Top Sliding Up Down Roof 9366374
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BMW G20 Axle Differential Module Control Unit ECU 5A11E72
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Negative Cable Mercedes C117 W176 Battery Lead Minus Pole Wiring A1765400009
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Audi A4 B8 Radiator Fan Relay Radiator Electrical Module Control Unit 8K0959501E
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Engine Wiring BMW F20 F21 F22 F30 F31 F34 F32 F33 F36 Harness Loom 8507902
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BMW Mini Cooper One R56 ECU Footwell Light Module High EKS PL3 FRM3R 3455896
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Driver Seat ECU Mercedes W203 A209 W211 Memory Control Unit Module A2118704626
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Mercedes W204 Stereo Radio Autoradio CD Player Head Unit A2049003211
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Valvetronic Wiring BMW F20 F30 LCI B48 Petrol Engine Actuator Cable Loom 8636066
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Engine Wiring Renault Trafic 2 Loom Module Harness Cable 275850906R
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Engine Wiring BMW F10 F11 520d N47N Diesel Loom Harness Cable 7823648
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Trunk Lid Module BMW X5 E70 X6 E71 Control Unit Rear Tailgate Lift 7230669
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Speed Sensor Mercedes Sprinter W906 Impuls Control Unit Module A0155429317
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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 .