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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Part no. A6461506378
Mercedes W906 OM646.985 109HP Engine Unit Module ECU Kit Key A6461506378
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COMAND Head Unit Mercedes CLA C117 W176 W246 Nav Sat Radio Player A2469000616
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BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124
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Ford Fiesta MK7 Body Control Module BCM Control Unit ECU 8V5115K600EG
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BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8614302 + FEM + 2 Keys
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Audi Q7 4M Engine Starter Motor Actuator Starter Valeo 3.0 TDI Diesel 057911022
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BMW Mini Cooper S R52 R53 Auxiliary Wiring Harness Servo Pump 7530357
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Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105400230
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BMW E90 E91 320d N47 Engine Control Unit Module ECU Kit DDE 7811700 CAS3 Key
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BMW F01 F07 F10 F11 Tyre Pressure RDC Control Unit Module 6857938
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BMW 1 3 Series E81 E87 E91 Switch Cluster Cruise Control Stalk Unit 9123038
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BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Unit DDE 7811151 Automatic
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Mini Cooper F56 B38 1.5 136HP Petrol Engine ECU Kit DME 8655106 BDC + Key Manual
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BMW E60 E65 E70 E81 E87 E90 F10 Engine Starter Motor 2354701
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BMW 1 Series E87N LCI Light Module LOW LCM Footwell Module PL2 FRM II 9166706
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Audi A6 C6 Door Module Front Driver's Side Control Unit ECU 4F0959793R
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Audi TT 8N Mk1 1.8T Petrol Engine Starter Motor Assembly 0001121022 02M911023
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Audi A6 C7 BCM Body Control Module Unit ECU 4H0907063GH
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BMW F20 F21 F22 F30 Radio Professional CD Bluetooth Player 9281517
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Audi Q7 4L Power Distribution Box Control Unit Plus Housing Cover 7L0937401B
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Mercedes W207 W212 Head Unit Sat Nav Navigation Display Screen
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Head Unit Mercedes SLK R172 Radio Media Sat Nav Unit Switch Panel A1729000814
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BMW X3 F25 Engine Wiring Start/Stop Manual Gearbox Module Loom Cable 7811232
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Mercedes C207 Coupe Module Rear Window Regulator Lifter Control Unit A2079003600
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BMW 1 Series F20 F21 LCI Antenna Aerial Noise Suppression Filter 9227470
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Audi A3 S3 8V VW Golf 7 Seat Leon 3 Parking Assist PDC Control Module 5QA919283A
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Alternator BMW F20 F21 F30 F31 F36 Petrol N55 Generator 210A 7616120
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Range Rover L405 Ambient Lighting Door Wire Wiring Left N/S CK52-14A205
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Mercedes V177 Head Unit Media Player Audio Radio Controller A1679001014
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BMW X3 E83 2.0i N46 150HP Engine ECU DME 7561834 Manual
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Mini One D R50 Diesel W17 88HP Engine ECU Kit DDE 7792544 + EWS + Keys Manual
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BMW F40 Mini F55 F56 Fuse Box Power Distribution Junction Relay Unit 9270356
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Audi A1 S1 8X Fuse Relay Box Module Unit 6C0941824D
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Wiring Harness Mercedes W246 M270 Petrol Engine Wiring Harness Loom A2701506733
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BMW E87 LCI E90 N43 118i 318i ECU Control Unit Kit DME 7595179 CAS3 + Key
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Volkswagen Touareg PDC Parking Sensor Control Unit Module 7L0919283F
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VW Polo 4 9N 1.4 TDI Seat Skoda Diesel Engine Alternator Generator 045903023A
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Audi A4 B8 2.0TDI CAHA 170HP Quattro Engine ECU Kit Ignition + 2 Key 03L906022RM
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Part no. 7557395-9
MINI Cooper R50 R52 W10 1.6 Petrol Engine Control Unit ECU DME 7557395 Automatic
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Audi A4 B9 Boot Tailgate Control Module Unit 4M0959107B
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Mini Cooper R58 Fuse Distribution Box PL3 SPEG H8 DC/DC 3457168
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5X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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BMW E87 Front Bumper PDC Wiring Loom Cable Harness Parking Sensors 7837455
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Mercedes W204 CD Player Radio Stereo Navigation Sat Nav Head Unit A2049009410
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Mercedes S205 X253 Center Console Wiring Loom Electrical Harness A2055402224
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Mini One D R56 LCI N47N 90HP Diesel Engine ECU Kit DDE 8519663 + CAS3 + Key
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Mercedes ML W163 Seat Module Control Unit Front Left Right N/O/S A1635452132
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9278074
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Audi A4 B8 Parking Brake Handbrake Module Control Unit 8K0907801D
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BMW X5 E70 Alternator Generator Engine Unit Valeo 220A 14V 7801124
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Ultrasonic Sensor BMW F70 G60 U06 Rear Parking PDC Set Portimao Blue - C31
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Mercedes W221 Remote Trunk Closing Hydraulic Pump Motor Unit A2218001548
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Audi A3 8V A1 S1 8X VW Jetta A6 Golf 5G Golf R 5G Petrol Alternator 04C903023M
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Volkswagen Touareg Diesel Engine Starter Motor Actuator Starter 070911023C
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BMW F45 Air Duct Front Slam Panel Flap Control Motor Drive Unit C47829-102
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BMW 3 Series E90 E91 Front Right O/S Driver Side Door Wire Wiring Loom 6938210
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Volkswagen Touareg 7L Positive Cable Battery Point Box Jump Unit 7L0937401
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Citroen Berlingo Module Control Unit Brown 12V 20A 4 Pins 8200263342
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BMW F20 F21 LCI M140i B58 Gearbox Wiring Cable Aquamist Water Methanol 8631672
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9218356
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BMW 3 6 X3 Series E46 E63 E83 MINI R50 R53 Control Unit Xenon Light 1307329074
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BMW E60 LCI E87 E90 120d 320d 520d N47 177HP ECU KIT DDE 7811700 CAS3 Key Manual
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Part no. 8P0971085B
Audi A3 8P Front Bumper PDC Parking Sensor Wiring Harness Loom 8P0971085B
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Part no. 7599881-12
BMW E81 E87 LCI Petrol N43 116i 2.0 122HP ECU Kit 7599881 DME CAS3 Key Manual
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Airbag Module BMW F45 X1 F48 Mini F54 F55 F56 Air Bag Control Unit ECU 9367835
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Audi A8 D4 Dynamic Air Suspension Control Unit Module ECU WABCO 4G0907553G
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BMW X3 Series E83 2.0d Engine M47N2 150HP ECU Kit DDE 7803373 EWS3 + Key Manual
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Part no. A2139005023
Ignition Switch Mercedes C238 Electronic Anti Theft Control Module A2139005023
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Part no. A2731532979-1
Mercedes W221 S500 M273.961 388HP Engine Control Unit ECU Kit A2731532979 Key
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Mercedes W447 114CDI SAM Comfort Control Unit Module Box ECU A4479009509
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Mercedes GLE C292 Coupe Front Bumper Wiring Harness A1665405515
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BMW E93 LCI Convertible Light Module Footwell Module PL2 FRM3R Lear 9308366
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AUDI A8 S8 D3 Reversing Camera Control Module Rear View Unit ECU 4E0910441
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Mercedes Vito W639 Door Module Front Right O/S Control Unit ECU A6399003200
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BMW E60 E61 E63 Control Unit Gateway Module ECU 6975686
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207026
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BMW F10 F11 LCI On-Board Screen Central Information Display 10,25" 9321016
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Head Unit Hyundai H-1 Radio CD Player MP3 AUX RDS Unit 96100-4H920WK
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BMW E90 LCI M-Audio Controller System Control Unit Module Navigation 9186215
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Mercedes W205 Parking Sensor Wiring Front Bumper PDC Loom Cable A2055404007
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Mercedes W164 ML 280 CDI 642.940 190HP Engine Unit ECU Kit A6421509678 Key Lock
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Audi Q7 4M Rear Bumper PDC Parking Sensor Wiring Harness Loom 4M0971104CB
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BMW G30 G31 F90 M5 G11 Antenna Aerial Diversity Amplifier Unit 8735982
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BMW Z4 E89 23i N52N 204HP sDrive Engine ECU Kit CAS3 + Key 7624048 Manual
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Volkswagen Golf Mk5 2.0 TFSI Petrol Alternator Generator 06F903023HX
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Fuel Pump Module BMW E60 E81 E87 E90 E91 LCI Control Unit ECU 7180427
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BMW Z4 E89 Roadster Convertible HiFi Speaker System Amplifier 9133913
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Mercedes W204 Front Fuse Box Relay Module Sam Control A2129005712
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Remote Control Receiver BMW X5 G05 U06 Mini F65 Receiver Radio Module 5B4E029
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Mercedes-Benz Sprinter W906 Front Left N/S Door Wiring Loom Harness A9060005999
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Part no. A0009002013
Mercedes W213 C238 Tyre Pressure Monitor Sensor Module Unit TPMS ECU A0009002013
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Mercedes ML W164 Lumbar Module Front Seat Control Unit A0009105202
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BMW E90 E91 E92 E93 AHK Towing Hitch Tow Bar Control Module Unit ECU 6773731
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Voice Control Module Mercedes W221 Linguatronic Input System Dutch A2218703787
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Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702951
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Part no. 6R0971349Q
Battery Cable VW Polo 6R Positive Alternator Starter Wiring B+ 6R0971349Q
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Part no. 3456859
Mini Cooper R58 High PL3 SPEG H8 Fuse Distribution Box Control Unit 3456859
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Part no. A1679008405
Mercedes Sprinter W907 W910 Front Door Module Control Unit Left N/S A1679008405
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Seat Exeo Engine Starter Motor Unit 2.0 TDI Diesel 3R0911023A
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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 .