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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Porsche Macan 95B Body Control Unit Module BCM 7PP907279CT
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Mercedes W221 Safety Module Air Bag SRS Control Unit ECU A2218708292
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Volkswagen Touareg 7L Keyless Entry Module Control Unit ECU 3D0909135N
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Mercedes ML W164 Front Fuse Box SAM Relay Control Unit Module A1645400072
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Audi A6 C6 Amplifier Audio Sound Control Unit Module Controller 4F0910223M
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Mini R55 R56 R57 R60 Gearbox Module Control ECU Automatic Unit 7619713
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High Voltage Inverter BMW i3 I01 Hybrid 60Ah Rex Electrical Machine Electronics
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Audi Q5 FY Front Windscreen Windshield Lane Assist Camera 80A907217A
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Mercedes Sprinter W906 OM651 OM642 Diesel Adblue Control Unit ECU A0009002914
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BMW X5 E53 3.0d M57N 218HP ECU Kit DDE + EWS3 + Key 7794626 Automatic Gearbox
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Audi RS3 8Y 2.5 TFSI Quattro 400HP DNWC Engine Unit ECU 07K907309L Automatic
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Mini Cooper R55 R56 R57 LCI R58 R59 CHAMP 2 Navigation 9270726
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VW Volkswagen Scirocco Mk3 Radio Head Unit Media CD Player RNS 315 3C0035279M
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Parking Brake Module BMW F10 M5 F12 F13 M6 Control Unit Lock Module 2284105
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Mercedes X218 CLS350 Airmatic Suspension Self Leveling Module A2189008903
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Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 6,5" 9231321
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BMW E87 E90 N45 116i 316i 1.6 Petrol Engine ECU DME 7557809 Manual Transmission
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Mercedes ML W163 Alternator Generator A0001502550
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Volkswagen Sharan 7N Sliding Door Catch Upper Locking Plate Right O/S 7N0843638
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BMW X5 E70 CAS3 Key Reading Module Unit Control ECU 9278746
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BMW E87 LCI E90 116i 316i 1.6 Petrol N43 122HP ECU Kit DME CAS3 Key 7579142
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Jaguar XF X250 Diesel Engine Starter Motor 12V DENSO 8X2311001AA
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Mini Cooper One R55 High SPEG DC/DC H3 Fuse Distribution Box 3451927
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Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655H
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BMW F20 F21 F30 F31 Driver Assist ACC Lane Change Switch Button Panel 9268478
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BMW 3 Series E46 Cable Loom Door Rear Left Right N/O/S Wiring Harness 8378338
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Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800
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Ford B-Max Dashboard Display Multifunction Screen Monitor C1BT-18B955-BD
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Mercedes W204 Display Screen Information Navigation Dashboard A2049007408
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BMW E60 E61 E83 Front PDC Parking Sensor Schwarz 2 Black 668
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BMW E46 Door Cable Convertible Wiring Loom Front Cables 6913092
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Mini Cooper S R60 ALL4 N18 1.6 184HP Engine Control ECU Unit DME 7620985 Manual
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Mini Cooper One R50 R52 W10 Petrol Alternator Generator 110A 7550997 7515426
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Mercedes Sprinter W906 Engine Wiring Loom Harness Cable CDI Diesel A6515460161
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Citroen Relay III Alternator Generator Valeo 9805343480
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BMW E60 E87 E90 120d 320d 520d M47N2 ECU Control Unit Kit DDE 7801711 CAS2 Key
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BMW E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 9128184
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On Board Monitor BMW X5 E70 X6 E71 Sat Nav System Screen Display 8,8" 1138730
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BMW X6 71 Amplifier HiFi Stereo System Sound 9312471
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Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129003314
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Audio Amplifier BMW F20 F21 F22 Harman Kardon Active Sound Design Unit 9390396
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Rain Sensor Mercedes SLK R172 W204 Front Windscreen Control Unit A2049017901
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BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8518168 CAS3 + Key Manual
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Land Rover Freelander L359 Relay 4-Pin Black 12V 40A FOMOCO 5M5T-14B192-DA
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Ford Transit Custom Mk8 Radio Stereo MMI Multimedia Head Unit MK2T-18D804-HF
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BMW E90 LCI Junction Box Body Control Module H1 PL2RR JBBFE IIIR 9226328
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Audi Q2 GA Towing Hitch Trailer Hook Module Control Unit 5H0907383D
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Volkswagen Polo 6R Wiring Loom Driver Door Front Right O/S 6R2971120AD
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Mini R60 Cooper SD N47N 143HP Engine ECU Kit DDE CAS3 + Key 8583423 Automatic
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BMW E81 E87 LCI E90 118d 318d N47 143HP Diesel ECU KIT DDE 7810001 CAS3 + Key
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BMW Z4 Series E89 LED Xenon Footwell Light Module Control Unit ECU FRM3R 9340337
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Ford Transit Connect Body Control Module BCM Control Unit ECU 7T1T-14A073-BB
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Audi A8 D4 4H Relay Fuse Bracket Holder Junction Box 4H0907348C
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BMW E81 E87 LCI E90 N43 170HP Engine Control Module ECU Kit DME 7621178 Manual
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BMW E60 E63 E64 530i 630i N52 258HP Engine Control Unit Module ECU DME 7546990
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Mini Cooper R56 Footwell Light Module High EKS PL3 FRM3R 3457402
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Engine Wiring BMW Z4 E85 E86 N52 Cable Loom Harness 7556886
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Mercedes W639 113 CDI 651.940 136HP Engine Module ECU Kit A6519009302 Key Lock
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BMW E87 Light Module ECU PL2 FRMFA 61359128183 9128183 9128223
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Mercedes W212 Valve Block AMG Air Suspension Control Unit Module A2123200558
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BMW E60 E87 LCI E90 120d 320d 520d N47 ECU Kit Control Unit DDE 7809000 CAS3 Key
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Ford Transit MK8 2.2 TDCI Diesel Engine Control Unit Module ECU BK31-12A650-BB
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BMW E31 E32 E34 E34 E39 Petrol Engine Starter Motor 1729982
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BMW E87 LCI E90 320i N43 170HP ECU Engine Control Unit DME 7580279 Manual
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Mercedes W204 W212 Radio Control Function Button Knob Controller A2048709558
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Battery Cable Mercedes W176 W246 Negative Harness Lead Terminal A2469069600
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AdBlue Module Mercedes W166 Diesel OM642 Exhaust Gas Cleaning Unit A6429007201
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BMW E81 Footwell Light Module Control Unit ECU PL2 FRM3R 9263797
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Range Rover L405 Rear Seat 18 Way Adjust Control Module Right O/S CK52-14G043-AC
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VW Volkswagen Golf 1K Steering Wheel Sensor Control Module Unit ECU 1K0953549BC
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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 .