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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Mercedes W203 W204 W212 OM642 Glow Plug Relay Unit Control Module A6429002700
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Trim Panel Mercedes W176 Rain Sensor Light Solar Condensation Cover A1768210136
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Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 1308204070
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VW Touran 1T 2.0 TDI BKD 140HP Engine Module ECU Kit 03G906021KF Manual
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Mercedes W906 311CDI OM646.985 109HP Engine Unit Module ECU A6461506378 Manual
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BMW 5 6 Series E60 E63 E64 M5 M6 Gearbox SMG Wiring Loom Harness 7836357
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BMW F20 120d F30 320d N47N Engine Control Unit ECU DDE 8578944 Manual
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BMW F36 LCI Petrol 420iX B48 Engine ECU Kit DME 8489449 Keys FEM Automatic
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BMW X1 E84 2.0dX N47 177HP Engine ECU Kit DDE 8510591 CAS3 + Key Automatic
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Mercedes C117 W176 W246 Battery Positive Plus Pole Terminal Lead A2469067901
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SAM Module Mercedes W207 A207 C207 Rear Control Unit ECU A2129004401
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Audi RS6 C7 4.0TFSI CRDB 560HP Engine Control Unit ECU 4G0906560 Automatic
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Mercedes Sprinter W906 Fuse Box Relay Electrical Rifle Box Unit A9065400350
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Land Rover Range Sport L320 3.0 D Alternator Mount Support Bracket AH3210239BA
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Audi A6 C6 MMI Multimedia Sat Nav Navigation Control Head Unit 4E0035652A
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BMW F30 328i N20 245HP Engine Control Unit Module ECU Kit DME 7646763 FEM Key
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Audi A4 B9 Front Centre Dashboard Tweeter Speaker 8W0035454
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Audi A4 B9 2.0 TFSI CVKB 190HP Engine Control Unit ECU 06L907309A Automatic
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Audi Q7 4L 3.0 TDI V6 Diesel Engine Cable Wiring Duct Channel Cover 059971341E
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BMW 7 Series E65 E66 DVD CD Changer Multichanger Without Magazine 6967639
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Audi Q7 4L PDC Parking Distance Sensor Control Module Unit ECU 4L0919283E
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Mercedes W205 SAM Module Control Unit Bracket Cover Holder Carrier A2055451540
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BMW X3 E83 Light Control Unit Module LEAR LM II LWR 3451625
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BMW E87 E90 M-Audio Sat Nav Radio Head Unit Navigation Business 6983845
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Mercedes W204 Front Crash Bar Impact Absorber Foam A2048853637
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Mercedes Vito W639 Parking Sensor Warning Device Display A0015422623
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Alternator Mercedes W164 OM272 Engine Alternator 180A 14V Valeo A0141540402
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BMW E39 Petrol M52 523i Body Control Module 8381963
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Audi A4 B8 Parking Brake Control Module Unit ECU 8K0907801K
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BMW F20 F21 F30 116d 316d Diesel N47N Engine ECU DDE 8570933 Key Lock FEM Manual
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Fuse Box Audi A3 8P Volkswagen Golf Mk5 Cover Trim Panel Housing 1K0937125C
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Valvetronic Control Unit BMW X5 E53 E60 E61 E65 VVT Valvetronic Module 7510154
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BMW E87 E90 E90N E91 E92 E93 Alternator Generator Diesel 7802471
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Sterling Power Battery-to-Battery Charger Unit Non Waterproof 12/12V 60A BB1260
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Mini Cooper R57 Cabrio Convertible Wiring Loom Harness Rear Trunk Lid 9144846
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Bluetooth Module Mercedes W213 Multimedia Control Unit ECU A2139004710
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Skoda Octavia Fabia III Rain Sensor Control Unit Module 5Q0955547
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Engine Wiring BMW F07 F10 F11 520d N47N Automatic Loom Harness Cable 8513830
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Alternator Mercedes Vito W639 Sprinter W906 14V 180A Generator Valeo A6461541102
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BMW E90 Radio Professional CD Audio Player Dash Control Unit 6983018
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Audi A3 8V A4 A5 B8 Alternator Generator Electrical Unit Diesel 03L903023K
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Light Control Module BMW E87 Footwell Control Module Unit 6961131
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Mercedes W203 C180 Kompressor M271.946 Engine Control Unit ECU A2719000600
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BMW E46 E53 Mini R50 R53 6-Disc CD Changer Multichanger Without Magazine 9131852
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Chip Power Chiptuning Box CRS KCR11 Control Unit Module Tuning Set
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Mercedes W204 OM651 14V 150A Alternator Generator Engine Start/Stop A0009060401
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Head Unit BMW F20 F21 F30 Radio Professional CD Player Control Module 9272368
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Mini Cooper R55 Fuse Distribution Box PL3 SPEG H4 Control Unit Module 3456854
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BMW F10 F20 F30 Bus Interface Control Module Unit 60 OHM 6807396
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BMW 5 Series F10 F11 Power Distribution Fuse Box Rear 9210858
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BMW F80 M3 F82 M4 S55 450 HP Engine Control Unit ECU DME 8699973 Dual Clutch
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Mercedes W205 W213 C238 Power Distribution Unit Busbar Connector A2055455100
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Mercedes W211 Rain Light Sensor Control Unit Wiring Loom Cable A2115409605
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Mercedes W221 Door Control Module Unit ECU Front Right O/S A2219008603
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BMW Z4 E89 Audio Amplifier Sound System Top Hifi Unit Module 9232424
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Range Rover L322 3.0 Starter Motor Diesel Engine Denso 7787925
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Ford Galaxy MK3 2.0 TDCI DW10C Engine Unit Module ECU BG91-12A650-NJ
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VW Volkswagen Golf MK6 Steering Wheel Column Control Module 1K0953549CF
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Mercedes W176 PDC Parking Distance Sensor Module Control Unit ECU A2469008311
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BMW E60 E61 E63 Passenger Side Door Air Control Module 6976156
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VW Transporter T5 2.0 TDI CAAA Engine Unit Module ECU Manual 03L907309K
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Audi A8 S8 D3 Electric Parking Brake Module Handbrake Control Unit 4E0907801B
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Mercedes W204 C180 Kompressor 271.952 156HP Engine ECU Kit A2711504879 Keys Lock
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Mercedes W205 W213 C253 Battery Cable Negative Lead Wiring Harness A0009058912
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Audi A5 8T Radio Head Unit Navi CD DVD Player Changer 8T2035110B
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On Board Monitor BMW X5 E70 X6 E71 Sat Nav System Screen Display 8,8" 6911908
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Distronic Radar BMW F20 F21 F22 F30 F34 GT Sensor Control Unit Module 6885585
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Mercedes-Benz CLK E Class C208 S210 W210 Wiper Motor Cable Wiring A2105400535
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Audi A3 8V Front Door Module Control Unit Module Right O/S ECU 5Q0959592E
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BMW 1 3 E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9232250
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Mercedes W205 Control Unit Power Distribution Box Electrical A0009060086
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BMW 5 6 Series E60 E61 E63 M-ASK Business Navigation System Controller 6944108
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BMW E60 E61 E90 E91 330d 530d M57N2 Engine DDE Control Unit 7801712 Automatic
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Alternator Nissan Qashqai 2.0 dCi Diesel Engine Alternator 12V 150A 23127JG71B
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Audi Volkswagen Seat Skoda 2.0 TDI Diesel Starter Motor Engine Bosch 02M911023P
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Mercedes W221 TV Tuner Receiver Control Unit Module A2219008502
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BMW i3 I01 F10 F20 F30 LCI KaFAS Camera Speed Control ECU Module Unit 9359799
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Mercedes W177 Door Control Module ECU Front Right O/S A1779008803
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Engine Wiring BMW F20 F30 LCI 118d 318d 120d 320d B47 Loom Harness Cable 8595284
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SD Card Mercedes W213 C238 C253 Garmin Map Pilot Navi Europe 15 / 16 A2139062604
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Mini Cooper R55 R56 R57 N12 1.6 120HP ECU Kit DME 7589971 + CAS3 + Key Automatic
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BMW X3 E83 3.0d M57N2 218HP ECU Control Unit Kit DME 7801217 EWS3 Keys Automatic
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Headlight Ballast BMW E60 E61 E90 E91 Xenon Adaptive Control Module 6941634
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BMW 5 Series E60 E61 PDC Parking Sensor Front Carbonschwarz Black 6989071
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BMW Mini Clubman R55 Cable Wiring Loom Splitdoor Door Rear Right O/S 9198760
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Mini Cooper F55 F56 136HP B38 Engine ECU Kit DME 9470915 + BDC + Key + Lock
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Mercedes W205 C253 W257 Door Module Rear Left N/S Control Unit ECU A1679003418
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BMW F98 Engine Starter Motor 8671505
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Chip Power Chiptuning Box GS2 K211-K223 Control Unit Module Tuning Set
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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 .