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. A4479002405
Head Unit Mercedes W447 Radio Navigation Audio 15 Control Unit A4479002405
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VW Volkswagen Caddy Golf MK6 Stereo Radio CD Changer Player Head Unit 5K0035156A
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Battery Cable BMW X3 F25 Wire Lead Positive Alternator Starter B+ 9243645
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BMW X3 E83 Telematics Bluetooth Control Unit Module Computer 9207074
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Audi A3 RS3 8V 5Dr Door Harness Loom Wiring Rear Left Right N/O/S 8V4971687K
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BMW Z4 E89 sDrive 20i N20 184HP Petrol Engine ECU Kit CAS3 + Key 7645762 Manual
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Peugeot 207 Partner 1.6 HDI Alternator Generator Support Bracket 9684613880
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BMW E65 E66 Steering Wheel Electronics Control Unit Module 6958039
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BMW F20 F21 F30 F31 116d 316d 118d 318d Diesel N47N Engine ECU 8573258 Manual
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BMW F20 F21 F30 F31 Rear Body Control Unit Module REM 9329703
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Audi A4 B7 Comfort Convience Module Control Unit 8E0959433CH
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On Board Navigation BMW E60 E61 E90 E91 Display Monitor Screen 6,5" 6962424
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Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465407632
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VW Polo 6R 1.4 CGGB 85HP Engine Control Unit ECU Kit 03C906024CN Manual
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Door Module Mercedes GLC X253 Rear Door Left Control Module A2059000828
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Mercedes W204 Display Screen Information Navigation Dashboard A2049007408
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Volkswagen Golf Sportsvan 1.5 TSI DADA 150HP Engine ECU Key + Lock 05E907309 DSG
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BMW E88 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9240524
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Audi A4 B9 Front Door Control Module Unit Driver's Side 8W0959593E
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Ford B-Max Alternator Generator 14V 150A 1.0 GTDI EcoBoost CV6T-10300-BC
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Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit ECU Manual CC1112A650AC
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Audi A4 B9 8W TDI Diesel Adblue Dosing Module Control Unit 4M0907355E
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045454501
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Mercedes A B Class W169 W245 Rain Light Sensor Control Unit Module A1718203926
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Mercedes V177 C118 W247 Fuse Box Relay Control Unit Module A1775404507
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BMW E81 E87 LCI N43 116i 2.0 122HP Engine ECU Kit 7595179 DME CAS3 Key Manual
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BMW 3 X1 F30 LCI F48 Telematics Telephone Control Module ATM ECE 3G 6809306
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BMW E39 Audio Amplifier Radio Sound System Hifi AMP Control Module 8362444
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Switch Cluster BMW E82 E88 E90 LCi Cruise Control Stalk Unit 9110882
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Mercedes GLE C292 Coupe Trunk Lid Module Automatic Closing A2929007101
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BMW 7 Series E65 E66 Dashboard EXCH Control Display Screen 8,8" 6960096 9110639
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Volkswagen Golf Mk7 Front Door Module ECU Control Unit Driver's Side 5Q0959593F
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Audi Q7 4L Yaw Rate Speed Sensor Module 7H0907652A
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Audi Q7 4L 4.2 TDI Quattro Positive HV Battery Terminal Cable Harness 7L0971225
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COMAND Head Unit Mercedes CLA C117 W176 W246 Nav Sat Radio Player A2469000616
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Audi A4 B8 Becker K-Box Radio Receiver Module Control Unit ECU 4F0035541N
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Ford Transit Mk4 Starter Motor Engine Actuator Diesel 92VB-11000-BA
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BMW 5 Series E60 Light Control Module Unit Lear LME6X MAN. LWR (LCM) 6936103
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BMW X6 71 Amplifier HiFi Stereo System Sound 9312471
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BMW E92 Coupe Footwell Xenon Light Control Module Lear FRM3R PL2 9286882
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MINI Cabrio R52 R53 Battery Cable Lead Positive Plus Pole Wiring 6942507
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Ford Transit Custom Mk8 Relay 5 Pin 12V 6X4T-14B192-AA
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Mercedes W204 W207 C218 W212 E220 Navigation 20 Control Module Unit A2079005400
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Mercedes W164 Diesel OM642 Engine Wiring Loom Harness Cable A6421500856
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BMW X3 E83 LCI 2.0d N47 177HP Engine Control Unit ECU DDE 8506373 Automatic
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BMW i3 I01 Holder Audio Amplifier Telephone Bracket Mount Trim 9251524
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Mini One R56 N12 1.4 95HP Engine ECU DME Kit CAS3 + Key 7600020 Manual
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Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD
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Door Module Mercedes CL203 W203 Front Left N/S Control Unit A2038201385
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BMW E88 Cabrio Footwell Light Module Control Unit ECU PL2 FRM3R 9251488
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Mercedes W213 Seat Control Module Unit ECU A2139007107
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BMW F30 LCI 330e Hybrid High Voltage Battery Electronics Unit 8661800
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Mercedes W203 Aerial Antenna Amplifier Module Unit A2038206489
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BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9395177
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Mercedes W447 W448 W636 W639 Battery Holder Mount Bracket A6395410212
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Mini Cooper S F55 F56 Petrol B46C B48C Engine Wiring Cable Loom Harness 8678958
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BMW F10 F20 F30 Head Unit Basis Media Navigation Headunit 8791692
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Ford Galaxy Mondeo Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-BA
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BMW 5 7 Series E60 E61 E65 Front Passenger Seat Angle Adjustment Drive 9146329
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Mini Cooper R58 Footwell Light Module High EKS ECU LEAR PL3 FRM3R 3457428
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Part no. 7N0959794G
VW Volkswagen Sharan 7N Rear Left Right Door ECU Module Control Unit 7N0959794G
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Mercedes W211 PDC Parking Sensor Module Control Unit A2115457332
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Audi Seat Skoda Volkswagen 1.4 TSI Petrol Alternator Generator 110A 03C903023G
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Mercedes W203 C200 Kompressor M271.940 163HP Engine ECU A2711534691 Automatic
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Audi A6 C6 2.0 TFSI BPJ 170HP Engine ECU Kit 4F2910115B Ignition + Key Manual
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Mini Cooper One R50 R52 R53 Radio Boost CD Player Unit Head Control 6927904
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BMW Z4 E89 Power Distribution Box Control Unit Module With Fuse 9192124
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BMW E93 LCI Footwell Light Control Unit Module Lear FRM3R PL2 9230450
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Mini Cooper S R56 N14 1.6 174HP ECU Kit DME 7641003 + CAS3 + 2 Keys Manual
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Fuse Box Citroen Berlingo Peugeot Partner BSM Control Unit Module 9675878480
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BMW Z4 Series E89 Front Bumper PDC Loom Cables Wiring Set 9225771
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Mini Cooper D R55 R56 Diesel W16 1.6 109HP ECU Kit DDE 7823934 CAS3 + Key Manual
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Mercedes S205 OM622 Diesel Engine Throttle Body Regulator Actuator A6261410000
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BMW X1 Series E84 Wiring Cable Loom Set Rear Door Left Right N/O/S 9191408
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Mini Cooper R50 R52 R53 Support Bracket Navigation Computer 6914396
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Mercedes W639 Vito 109 CDI OM646 Engine Unit Module ECU A6461507272 Manual
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Ford Ranger Mk3 Radio Audio Sound CD Head Unit Control Navi EB3T-19C107-GH
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BMW F10 F11 Front Bumper PDC Wiring Loom Electrical Cable Harness 9240226
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Audi Q3 8U Boot Tailgate Control module Unit 8U0959107
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BMW F20 F21 F30 F31 N47N 116d 316d 116HP Engine ECU Kit DDE 8518569 + Key + FEM
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Mercedes W639 W906 W907 OM642 Diesel Engine Alternator Generator A0009062700
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BMW E60 525i E90 E91 325i N52 Engine ECU Kit DME 7559178 CAS2 + Key Automatic
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Fuse Box Mercedes W207 Front Relay Control Unit Module SAM A2129004911
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BMW F40 Telematics Control Module Unit TCU 5A872D1
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Skoda Octavia II Body Control Module Convenience Unit BCM ECU 1K0937087J
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BMW 3 Series E36 Cable Harness Door Rear Right O/S Wiring Loom 8379056
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BMW 6 Series E63 E64 Front Central Bass Subwoofer Speaker HiFi 6929101
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Audi A3 8V Control Unit Central Door Locking Module ECU 5Q0959393
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9257200
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Mercedes W221 Gateway Control Unit Module ECU A2215407045
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Radio MP3 Player Renault Trafic Vauxhall Vivaro Head Unit Bluetooth 281155093R
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Audi A6 C6 Electric Parking Hand Brake Module Control Unit ECU 4F0907801B
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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 .