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 TT 8S Module BCM Body Control Unit Module ECU 5Q0937084BR
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Audi TT FV Impact Body Sound Accoustic Control Module ECU 8S0907159
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BMW X3 E83 LCi Rear Door Window Lifter Right O/S 6925966
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Audi A3 8V Head Up Navigation Multimedia Screen Display Unit 8V0857273N
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Audi A3 8V Front Door Module Control Unit Module Right O/S ECU 5Q0959592E
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Audi A1 8X Air Module Sensor Control Unit Module 8X0959655A
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Audi A7 4G8 3.0 TDI CZVA Adblue Control Module Unit ECU 4G0907355G
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Audi A6 C7 2.0 TDI CGLC 177HP Engine Unit ECU Kit 03L906018LA BCM2 Key Ignition
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AUDI Q7 4L Lane Assist Module Blind Spot 4L0907566A
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Audi Q7 4L Blind Spot Monitoring Radar Unit 4L0907568A
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BMW E87 E90 E91 120i 320i N46 150HP ECU KIT DME 7561834 CAS2 + Keys Automatic
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Audi A4 S4 B9 A5 A5 F5 3.0 Petrol Alternator Generator 14V 150A 06E903024L
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Volkswagen Golf MK 7 Audi A3 8V 1.4 Alternator Petrol 04C903023K
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Mercedes C207 Rear Radio Amp Sound Amplifier Audio Getaway Becker A2078205289
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BMW E60 E61N LCI E65 EDC-K Control Unit Moudule ECU 6759599
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Audi A1 8X A3 8P Alternator Generator 1.4 TFSI Petrol Engine CAVG 03C903023A
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Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475L
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Navigation Module BMW F10 F20 F22 F30 F32 Sat Nav DAB Head Unit High 9318750
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Audi A3 8P 1.6 MPI Petrol Starter Motor Engine 02T911023M
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Audi SQ5 FY Starter Motor Engine Diesel Bosch 06M911021A
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BMW F06 Electric Wiring Cable Loom Harness 9269983
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Volkswagen Touareg 3.0 TDI BKS 225HP Engine Control Unit ECU Kit 7L0907401F Key
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Mercedes C207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900
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BMW F06 Gran Coupe Footwell Light Module Control Unit ECU FRM III 9345377
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Audi A4 B8 Bose Audio AMP Amplifier Module Control Unit ECU 8T0035223AD
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Headlight Ballast Control BMW F06 F12 F13 F15 F16 LED Adaptive Module 7316210
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Audio Amplifier BMW F20 F21 F22 F23 Top HiFi Harman Kardon Control Unit 9343739
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Volkswagen Touareg 7L Control Comfort Unit Module Unit ECU 7L6959933
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Control Unit A2129068800
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Volkswagen Touareg 7L Automatic Gearbox Module Control Unit ECU 09D927750FA
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Fuel Pump Control Audi A4 B9 A5 F5 A6 C8 Pump Unit Module ECU 4K0906121C
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Volkswagen Touareg 7L Power Supply Control Module Unit ECU 7L6937049AF
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Volkswagen Touareg 7L 3.0 TDI Diesel Engine Starter Motor 059911024J
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Volkswagen Touareg 7L Display Screen Multimedia Navigation Unit 7L6035177E
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Audi TT FV Air Module ECU Control Unit Crash Sensor 5Q0959655P
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Audi TT FV Stereo Radio Sound System Speaker Amp Amplifier 8S0035465B
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Audi TT FV Central Gateway Control Unit Module ECU 8S0907468B
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Audi TT FV Entry Keyless Kessy Control Module Unit ECU 3Q0959435B
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Audi TT FV Front Camera Module Lane Assist Control Unit 5Q0980653G
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Audi TT FV 2.0 TFSI CHHC HV Battery Power Central Distribution Point 8S0915459A
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Audi A4 B9 Boot Tailgate Control Module Unit 4M0959107B
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Audi A4 S4 B9 3.0 TFSI 355HP CWGD Quattro Engine Control Unit ECU 06M907309D
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Mini Cooper R55 R56 Petrol N12 DME Engine Control Unit ECU 7600076 Manual
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Stereo Radio Amp Audi A5 F5 Sound System Speaker Amplifier 8W0035465
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Audi A5 F5 Central Body Control Module BCM Unit ECU 8W0907064GC
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Volkswagen Tiguan 5N Battery Lead Positive Cable Plus Pole Wiring 5N0971228D
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Audi A5 F5 Sat Navi MMI Multimedia Radio SD Reader Head Unit Harman 8W5035035C
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Audi A5 F5 45 TFSI DKNA Body Control Module BCM Unit ECU 8W0907063DG
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Body Control BMW F30 F35 F35 LCI BCM Comfort Module Unit BCM 8709210
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Parking Sensor BMW F20 F21 F22 F23 F30 F34 GT PDC Module Control Unit 7938190
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Audi A3 8V Bang Olufsen Audio AMP Amplifier Module Control Unit ECU 81A035466B
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Audi A3 S3 8V Negative Battery Terminal Earth Cable Lead Wiring 5Q0971250AB
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Audi Q7 4L 3.0 TDI BUG 233HP Quattro Engine ECU Kit 4L0910401M Lock + Key
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Audi S3 8V Front Headlight Lamp Range Control Module ECU 3Q0907338E
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Audi Q7 4L Automatic Transmission Module Controller Unit 09D927750FS
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Audi Q7 4L Navigation Sat Stereo Radio Audio Head Unit CD Player 4E0910888PX
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Audi Q7 4L Door Control Unit Module ECU Front Right O/S 4L0907290A
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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Audi Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B
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Mercedes C207 Parking Sensor Wiring Loom Cable Harness Front PDC A2074400208
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BMW E81 E88 E90 N43 118i 318i 143HP Engine Control ECU DME 7621178 Automatic
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Audi A1 8X 1.6 TDI CXMA 115HP Engine ECU Kit 04L907309E Ignition + Key Manual
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Audi A1 8X Mulitmedia MMI Player Audio Stereo Radio Head Unit 8XA035192C
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Mercedes W207 W212 Head Unit Sat Nav Navigation Display Screen
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Audi A6 C6 Body Control Comfort Unit Module BCM Convenience Unit 4F0907279B
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Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035785A
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Audi A6 C6 6-disc Compact CD Changer 4E0035111A
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Audi A6 C6 CD DVD Navigation Sat Nav Head Unit 4F0035769B
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Audi A6 C6 2.0 TFSI BPJ 170HP Engine ECU Kit 4F2910115B Ignition + Key Manual
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Audi A6 C6 Hifi Audio Sound Speakers Amplifier Control Unit ECU 4F0910223C
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BMW E60 E90 E91 N52 325i 525i 218HP ECU Kit DME 7567178 CAS3 + Key Automatic
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Head Unit BMW F30 F31 F32 X3 F25 Navigation Sat Nav Basic Media Player 9350332
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Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD
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Mercedes W164 C207 Automatic Gearbox ECU Control Unit EGS Module A0002703352
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Chrysler Grand Voyager 2.8 CRD ENR Engine Water Inlet Hose Tube Line 5066883AB
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BMW F20 F30 LCI Diesel B37 B47 ECU DDE Engine Control Unit 8598759 Automatic
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Mercedes W166 Headlight Lamp LED Control Module Left Right N/O/S A2189009203
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Audi A3 8P Side Air Module Control Unit ECU 8P0959655N
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Audi A3 8P 2.0 TDI 170HP BMN Engine ECU Kit Key + Ignition 03G906018DN Manual
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Mercedes X253 Steering Wheel Contact Switch Control Plate A0994644206
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Head Unit BMW F20 F21 F22 F30 F31 F82 LCI Sat Nav Radio Media Navigation 8736162
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Audi A3 S3 8P Engine Bay SAM Relay Fuse Box Module Control Unit ECU 1K0937124P
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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 .