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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BMW E81 E87 E88 E90 E91 LCI Radio Business CD Player 9227500
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Mini Cooper R55 R56 R57 LCI R60 Radio Boost CD Player Head Unit 3457434
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MINI One 1.6 R50 R52 W10 90HP Engine ECU Kit DME 7545789 + EWS + Key Manual
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Mini Clubman F54 Negative HV Battery Terminal Cable Harness Wiring Loom 6821204
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Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655BT
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Mercedes W221 Remote Trunk Closing Hydraulic Pump Motor Unit A2218001548
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Audi TT 8J Tyre Pressure Control Module Unit 8J0907274
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Mercedes Sprinter W907 314 CDI OM651.958 143HP ECU Engine Unit A6519003603
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Audi A4 B8 8K A5 8T Sound System Audio Amplifier Amp Unit 8T0035223AB
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Wiring Mini R55 R57 LCI R58 R60 Petrol N18 Injection Ignition Harness 7620625
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Air Module BMW E65 E66 Sensor B-pillar Right O/S Control Unit Air 6960222
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BMW F22 F23 F30 F31 LCI 218i 318i B38 136HP Engine ECU DME 8662411 Manual
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BMW E61 E61N LCI Antenna Amplifier Diversity 868 MHZ 9183564 6985531 6934478
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BMW X5 Series E53 PDC Parking Control Module Unit PDC 4104215
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Key Reading Module BMW E60 E87 E90 CAS 3 ECU Control Unit 6943830
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BMW 1 3 Series E87 E90 E91 120i 320i N46 ECU KIT DME 7552176 CAS2 + Key Manual
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Audi A3 8P Multimedia Interface Unit Module Bracket Mount 8P0035785
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Land Rover Freelander Ford Mondeo Focus Airbag Crash Impact Sensor 3M5T14B342AB
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Mercedes W204 S204 Estate Rear SAM Control Unit Module A2049001202
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BMW E88 Cabrio Footwell Light Module Control Unit ECU PL2 FRM3R 9251488
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Audi Q2 GA Rear Centre Loudspeaker Subwoofer 81A035382
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Vauxhall Combo Fiat Punto 1.3 Diesel Starter Motor 51810307A152
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MINI Cooper S R55 R56 LCI R60 Alternator Generator 150A Petrol 7604782
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Mercedes W204 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2045401706
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Headlight Ballast Control BMW F06 F12 F13 F15 F16 LED Adaptive Module 7316210
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Mercedes W204 C207 W212 E250CDI OM651.924 204HP Engine ECU A6519007500 Automatic
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Audi A3 S3 8P Radio Media GPS Sat Audi Navigation Plus Unit 8P0035192H
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Parking Sensor Mercedes W169 W245 PDC Distance Control Unit Module A1699007400
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Rain Sensor Mercedes W211 C219 Front Windscreen Control Unit A2118705426
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Ford Transit Custom Power Stabilisation Voltage Control Module Unit GK2T14B526CE
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Mini F55 F56 Control Unit Module Active Sound Design 8717601
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BMW F20 F21 F30 LCI M140i 340i Alternator Generator 180A BOSCH 8614276
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Control Unit BMW F07 F10 F11 F12 F13 F25 Air Module ECU Unit Continental 9385025
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Ford Transit Mk6 Starter Motor Engine Actuator Diesel 2.4 TDCi YC1U-11000-AC
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High Voltage Inverter BMW i3 I01 Hybrid 60Ah Rex Electrical Machine Electronics
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718207126
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Seat Module Mercedes W213 C238 Memory Control Unit Left Right N/O/S A2139008409
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Audi A3 8P Boot Trunk Subwoofer Rear Bass Speaker 8P3035382E
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Ford Transit Connect Negative Battery Terminal Cable Wiring 9T1T-14A280-MBC
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BMW E60 E61 E63 Passenger Side Door Control Module 6957760
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Audi A3 8V Engine Starter Motor Actuator Starter 0AM911023G
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Mercedes W204 C180 Kompressor 271.952 156HP Engine Control Unit ECU A2711504879
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BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Unit DDE 7811151 Automatic
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Alternator Mercedes W212 S212 Diesel OM651 Alternator 220A Valeo A0009063705
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BMW E65 E66 Sensor B-Pillar Air Module Right O/S 6929561
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Mercedes GLC X253 Relay Battery Control Cut Off Out Relay A0009825323
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BMW E46 Convertible Wiring Harness Fully Automatic Folding Top Left N/S 8243267
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Mini Cooper S R56 LCI N18 1.6 184HP Engine ECU Kit DME 8610006 CAS3 Key Manual
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ECU Engine Control BMW E81 E87 E90 LCI 118d 318d N47 Diesel DDE 7823422 Manual
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VW Volkswagen Sharan Speaker Loudspeaker Front Door Left Right N/O/S 7N0035454A
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Volkswagen Caddy 1.6 TDI CAYD C20 102HP Engine Unit ECU Manual 03L906023PC
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Mercedes E CLS Class W211 W219 Bracket Anti Tow Away Sensor Bracket A2118220114
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Mini Cooper R50 R52 DME Petrol Engine Control Unit ECU 7553735 Automatic
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BMW E87 LCI E90 E91 118i 318i Petrol N43 143HP ECU KIT DME 7599881 CAS3 + Key
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Porsche Cayenne 92A Front Side Door Crash Sensor Left Right N/O/S 7P0959354
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BMW Mini Cooper Cabrio R57 Aerial Roof Antenna Base Unit 3453890
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Fuse Box Cover Mercedes W177 W247 Engine Compartment Housing Holder A2475407600
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Part no. 9168833
BMW E60 E60N E63 E63N Body Control Module ECU Control Unit 9168833
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Mercedes S205 X253 Center Console Wiring Loom Electrical Harness A2055402224
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Part no. 6925966-2
BMW X3 E83 LCi Rear Door Window Lifter Right O/S 6925966
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Part no. A2129000006
Fuse Box Mercedes W212 Front Relay Control Unit Electric Module SAM A2129000006
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Mercedes W211 E220 CDI 646.821 170HP Engine Unit ECU Kit A6461503272 Key Lock
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BMW F80 M3 F82 F83 M4 S55 431HP Engine Unit Module ECU DME 8679840 Drivelogic
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BMW F20 F21 F30 F31 F32 F34 LCI Starter Motor Bosch B48 Petrol 8621838
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BMW X1 E84 18dX Diesel N47N 143HP Engine Control Unit ECU DDE 8519005 Manual
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BMW X5 E53 3.0i Petrol M54 231HP Engine ECU Kit DME 7519308 EWS3 Key Automatic
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Mercedes S212 Estate Roof Antenna Cover Shark Cosmos Black Metallic - 303
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BMW F20 F21 LCI 118i B38 136HP Engine ECU Kit DME Manual Control Unit 9895416
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BMW X5 E70 Footwell ECU Light Control Unit Module Xenon FRM II Lear 9170453
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Mercedes S204 Bootlid Control Unit Trunk Lid Module A2048708926
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SD Card Mercedes W205 C238 Garmin Map Pilot Navigation Europe A2139063605
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Audi VW Volkswagen Seat Relay Unit Module 9 Pins 12V UH2 4B0955531A
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Mercedes X156 GLA200 M270.910 156HP Engine Control Unit ECU Kit A2709002900 Key
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Mini Cooper One R55 R56 N12 DME 7573701 Petrol Engine Control Unit ECU Manual
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Mercedes W213 M274 Petrol Three Phase Engine Alternator Generator A0009067703
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Volkswagen Golf Mk8 Engine Starter Motor Assembly Unit 0AM911022C
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BMW 7 Series E65 E66 1 Rear Bumper PDC Ultrasonic Sensor Titansilber Silver 354
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Kia Ceed Sportage Hyundai Relay Unit 5 Pins 30/20A Blue 95225-1F100
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Seat Leon FR 5F Dashboard Multimedia DIsplay Sat Nav Screen 5F0919606
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Mini Cooper S F55 F56 F57 Petrol Injector Wiring Cable Loom Harness 8678962
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VW Volkswagen Golf SV Online Services Module Control Unit ECU 5NA035284B
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BMW E65 E66 Battery Cable Positive Plus Pole 6904905
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Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469008214
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Audi S5 8T Body Comfort Control BCM Supply Module Unit ECU 8K0907063C
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Bluetooth Interface Audi TT 8J A3 8P Multimedia Steuergerät ECU 8P0862335K
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Part no. 8517015-1
BMW X5 E70 X6 E71 30dX Diesel N57 245HP ECU Kit DDE 8517015 CAS3 Key Automatic
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Mercedes X253 Front Bumper Parking Sensor Wiring Loom Cable Harness A2535402400
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Part no. 7521122-1
BMW E60 E65 E70 E87 E90 F10 F20 F30 N52 N53 Petrol Engine Starter Motor 7521122
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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 .