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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Led Indicator Module BMW F32 F33 F36 F80 F82 F83 Light Signal Blinker 7493232
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BMW X1 E84 Parking Control Module Unit PDC ECU 9252637
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Volkswagen Polo 6R BCM Body Comfort Control Module Unit ECU 6R0937085B
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BMW E90 E91 E92 Professional CCC Navigation System Controller 9170721
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Earth Ground Cable Renault Master Vivaro Line Strap Battery Lead 240804802R
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Parking Control Module BMW E81 E84 E87 E90 E91 E92 E93 Unit PDC 6982402
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BMW E60 E61 Navigation Head Unit CCC CD Sat Nav Player System Controller 9159028
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Mercedes W166 Front SAM BCM Control Unit Module CBC V4 ECU A1669006020
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Audi A4 B8 2.0 TDI Alternator Generator 03G903016G
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Audi A4 B7 Air Module Control Unit ECU Impact Sensor 8H0959655G
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Mercedes W251 W211 Air Suspension Control Module Unit ECU A2515450316
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Mercedes W211 Central Gateway Module Control Unit A2115405645
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Audi A4 B8 1.8 TFSI CDHA 160HP Engine Control Unit ECU Kit 8K1907115C Manual
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Wiring Harness Mercedes Vito W639 Boot Tailgate License Plate Lamp A6394401613
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VW Volkswagen Polo 6R Rear Door Wiring Left Right N/O/S Harness Cable 6R4971693C
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BMW X3 F25 Light Module Control Footwell Lightning ECU Unit FRM3 9286157
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Mini Cooper R50 W10 116HP Engine Control Unit ECU Kit DME 7557395 Key EWS
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BMW F80 M3 F82 M4 S55 450 HP Engine Control Unit ECU DME 8645445 Dual Clutch
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Skoda Octavia 5E Audi A3 8V Body Control Comfort Module BCM ECU Unit 5Q0937084AC
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Alternator Generator Mini Cooper R55 R56 R57 R57 R58 LCI Petrol 7574365
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BMW X3 G01 Led Light Daytime Running Module Control Unit ECU Right O/S 7466108
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Mercedes W177 Ambient Lighting Control Module Unit ECU A1779005104
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Mercedes-Benz M ML W163 Battery Positive Plus Terminal Lead Cable A1635401630
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BMW E65 E66 6-fold CD Changer Multichanger Without Magazine 6923547
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Mini One R55 R56 N12 1.4 95HP Petrol ECU Kit DME 7640005 CAS3 + Key Automatic
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BMW 1 3 E87 E90 E91 E92 M47N2 M57N2 Alternator Bosch Diesel 150A 0 986 080 580
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Mercedes W209 Convertible Air Module SRS Control Unit ECU A2098200085
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Audi A4 S4 B8 3.0 TFSI 333HP CAKA Quattro Engine Control Unit ECU 8K0907551
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Audi TT FV Engine Alternator Generator Electric 14V 150A 2.0 TFSI 06K903023G
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Mercedes SLK R170 W202 W210 Module Control Unit SRS Sensor ECU Bosch A0018200826
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Rain Sensor Audi Q3 RSQ3 F3 Front Windscreen 81A955555B
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BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8625241 + FEM + Key Automatic
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Citroen Relay III Air Module Sensor Control Unit ECU 12V 46859297
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BMW 1 Series F20 F21 318d N47N 116HP ECU Kit DDE 8517874 + Key + FEM Manual
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BMW 1 Series E81 Footwell ECU Light Control Module LOW PL2 FRM3R Lear 9159812
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Communication Module Mercedes R172 C117 W176 Hermes LTE Control Unit A2229004519
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Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519003203 Manual
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Peugeot 307 1.6 HDI Diesel Engine Wiring Cable Loom Harness 9658277780
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Volkswagen Golf CD1 Park Parking Assist PDC Distance Control Module 5R3919294
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BMW F20 F21 F30 F31 118d 318d 143HP N47N Engine Control ECU DDE 8576341 Manual
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Audi A5 8T Stereo DAB CD Player Radio Receiver Head Unit 4G0035061N
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Mercedes W204 Navigation Radio CD Player Head Unit A2049007202
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BMW Z4 E89 Central Information Display Dash Screen Navigation Monitor 9282022
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Mini Cooper S R55 R56 R57 N14 1.6 174HP ECU Kit DME CAS 3 + Key 7587548 Manual
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715450101
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Mercedes W205 Head Radio CD Player Navi Interface Control Unit A2059006222
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Mercedes W204 W212 E220CDI OM651 Diesel Engine Control Module ECU A6519005301
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VW Volkswagen Touareg 7L Radio Player Navigation Sat Nav Head Unit 7L6035191R
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Audi A5 8T 2.0 TDI CAHA 170HP Engine Control Module ECU 03L906022RM Manual
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Volkswagen Golf Mk5 1.9 TDI 105HP BXE Engine ECU Kit 03G906021KH Ignition + Key
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Mercedes W204 Fuse Prefuse Box Relay Electrical Control Unit A2075401650
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BMW F20 F21 Aerial Antenna Amplifier Diversity DAB 9226885
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BMW 1 3 Series E87 LCI E90 E91 N47 DDE 7811701 Engine Control Unit Diesel ECU
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Mercedes W204 Navigation CD Player Radio Sat Nav Head Unit A2049004711
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BMW E70 E71 Seat Control Unit Module ECU 9196933
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Porsche Macan 95B Audi A8 D4 Starter Motor 12V DENSO 95860411300 06M911024
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BMW E60 E61 530i M54 231HP ECU Kit DME 7533651 + CAS2 + 2 Keys Automatic
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Ford Mondeo Mk4 Fuse Box Body Control Module BCM Unit 2.2 TDCi 7G9T-14A073-YC
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BMW E81 E82 E87 LCI E88 N47S 123d 204HP Engine Unit ECU DDE Manual 7811702
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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 .