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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Renault Trafic II Vauxhall Vivaro A 1.9 Diesel Engine Starter 7700116260
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BMW X5 Series E70 Footwell Light Control Module Unit LEAR FRM II NSW 9170452
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Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Head Unit BMW F20 F21 F22 F30 F31 LCI Sat Nav Radio Media Navigation 8708257
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Battery Clamp VW Golf 8 CD1 Audi A3 8Y Battery Base Bracket Holder 5Q0803219C
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Diversity Antenna Amplifier Mini F57 Convertible DAB Module Unit 9309991
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Mini One D R56 LCI R60 90HP N47N Engine ECU Kit DDE 8517727 CAS3 Key Manual
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Audi A4 B9 Gateway Control Module Unit ECU 4M1907468D
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Mercedes W176 W205 Exhaust Control Valve Flap Actuator Module Unit A0325456926
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Audi A1 8X 1.6 TDI CXMA 115HP Engine ECU Kit 04L907309E Ignition + Key Manual
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Mini R55 R56 Engine N14 1.6 174HP Engine Control ECU Kit DME 7610081 Manual
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BMW F20 M135i N55 326HP Engine Control Unit ECU DME 8665279 Manual
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BMW X5 E70 X6 E71 30dX Diesel N57 245HP Engine ECU Kit DDE 8506570 CAS3 + Key
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BMW F20 F21 Aerial Antenna Amplifier Diversity DAB 9226885
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Audi S5 8T Amplifier Speaker Bang & Olufsen Control Module Unit 8T0035223AN
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High Voltage Inverter BMW i3 I01 Hybrid 60Ah Rex Electrical Machine Electronics
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Mercedes W203 ECU Control Unit Crash Impact Sensor Module Air Module A2038207385
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BMW F12 F13 F20 F21 Alternator Generator 14V 210A N55 Petrol Engine 7591529
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BMW 1 3 Series E81 E87 LCI E90 N47 120d 320d 177HP ECU Kit DDE 7811700 CAS3 Key
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Fuse Box Mercedes W205 W213 GLC X253 Hybrid Power Distribution Unit A2135401115
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Citroen C3 Picasso Negative Battery Terminal Cable Wiring Lead 9687656980
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Audi TT FV 8S Crash Impact Sensor Pedestrian Protection Module Front 8S0959121
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Engine Wiring BMW X5 E53 3.0d M57N Loom Cable Harness Injector Module 7796819
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Mini F55 F56 Cooper D B37 Diesel Engine ECU Kit DDE 8582719 BDC + Key Automatic
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BMW 5 7 X5 Series E53 E60 E61 E65 E66 Handset Phone Mobile EVEREST 6953468
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Audi A7 4G 3.0 TDI Alternator Generator 059903018TX
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On Board Monitor BMW E60 E63 Navigation Display Screen 6,5" 6952327
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Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003100
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Audi A4 B9 Tow Bar Trailer Towing Control Module Unit 4E0907383J
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BMW E60 E63 E64 Body Control Module ECU Control Unit 6969011
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Mercedes-Benz C CLK Class W203 C209 Fuse Box Cover Engine A2035450403
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Telematics Module BMW F20 F21 Bluetooth Teleservices GPS Control Unit 2622605
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BMW E91 NSW PL2 FRMII Lightning Control Unit Module (LCM) 9159811
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Seat Leon Cupra 5F Suspension Control Unit Module ECU 5Q0907376B
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BMW 7 Series E65 Cable Harness Door Rear Right O/S Wiring Loom 6918780
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BMW F22 F30 F32 220i 320i 420i Petrol N20 184HP ECU Kit DME 8631725 + Key + FEM
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BMW X5 Series E53 Radio BMW Business Cassette Player 6918871
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Mercedes W221 DSM ISM Automatic Gearbox Control Unit Module ECU A1644460710
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Volkswagen Crafter SY Anti Theft Alarm Sensor Module Control Unit 5Q0951172A
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BMW X3 F25 ECU ICM Control Unit Air Module Bag Safety 6860962 0265020494
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Audi RS3 8V Potential Power Distribution Junction Box Jump Point 1K0937517
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BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9119495
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Mini F55 Body Control Unit Basic Module Body Domain Controller BDC LR01 8795005
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Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705
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BMW E90 E91 325i E60 LCI 525i N53 218HP ECU Kit DME 7586940 CAS3 + Key Manual
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Mini Cooper D R55 R56 LCI N47N 1.6 112HP Diesel ECU Kit DDE 8519663 CAS3 Keys
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Porsche Macan 95B Body Gateway Module ECU Control Unit 95B907530L
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BMW E81 E87 E88 E90 E91 Radio Business CD Player 9202152
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Audi A4 B7 2.0 TFSI BUL Quattro 220HP Engine Control ECU Kit 8E0910115H Manual
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Mercedes W221 Safety Module Air Bag SRS Control Unit ECU A2218708292
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BMW F30 LCI B48X 330e Hybrid Electric High Voltage Battery 8677631
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Alternator Generator Mercedes W203 W204 M271 Engine Valeo 120A 14V A2711541402
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Audi Q3 8U 2.0 TDI CFGC 177HP Quattro Engine Control Unit ECU 03L906018PH
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BMW 1 Series E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224589
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Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519000700 Manual
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Volkswagen Golf VI Audi A3 8P Engine Starter Motor 1.6 TDI 0AM911023L
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MINI One D R50 W17 1ND Engine Wiring Loom Harness Module 7790365
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Smart Fortwo C450 SAM Control Unit Module Fuse Box Q0011868V013000000
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Mercedes W203 C220 CDI 646.963 150HP Engine ECU Kit A6461500091 + Key + Lock
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BMW X5 E70 Footwell Light Control Module Unit LEAR PL4 FRM II 9176824
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Mini R55 R56 R57 R60 Gearbox Module Control ECU Automatic Unit 7619713
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Audi Q7 4L Air Suspension Level Height Adjustment Compressor Pump 4L0698007A
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Mini R57 LCI R59 Convertible Airbag ECU Control Unit Module 9809353
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Ford Focus Mk3 Front Door Cable Wiring Harness Loom Right O/S F1ET14A584CDH
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Audi A4 B9 Q5 FY Body Control Comfort Unit Module BCM Unit ECU 8W0907063CH
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BMW 3 5 X3 Series 4 E46 E60 E65 E83 M54 Petrol Starter Motor 2354693
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BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9243913
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BMW F45 Mini F55 F56 Head Unit Basic Media DAB Headunit 9381320
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Mazda 6 GJ Engine Starter Motor 2.2 Diesel M001T81582
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BMW F30 Fuel Pump Module Fuel Pump Control Unit ECU 8699235
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BMW X5 E53 Receiver Heating Remote Control 6944104 70545B
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Body Control Module BMW F20 F21 F30 F31 F32 Comfort Unit FEM ECU LR01 9315682
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Porsche Boxster 986 2.7 9622 220HP Engine Control ECU Kit 99661860500 Manual
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BMW E46 Saloon Petrol Positive Battery Cable Plus Pole Lead Wiring 8373945
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Audi A3 8V 1.4 TFSI CZEA Engine Control Module Unit ECU 04E907309A Manual
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BMW E90 E91 E92 Professional CCC Navigation System Controller 9185536
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BMW F11 Parking Brake Module Wiring Cable Harness Loom 9325545
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BMW F20 Head Unit Navigation GPS Sat Nav Infotainment DAB High F10 F30 9274570
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CD Changer BMW X5 E70 X6 E71 Mini R55 R56 R57 6 Disc Changer Unit 9125237
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Audi S3 8Y Electric Rear Bumper Wiring Harness PDC Loom Cable 8Y4971104AL
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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 .