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 Vito Viano W639 Alternator Generator Diesel 200A A0131541002
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Audi A6 C7 Onboard Supply BCM Body Control Module Unit ECU 4H0907063BA
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Audi A5 8T 1.8 TFSI Starter Alternator Harness Wiring Cable 8K2971228G
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Audi Volkswagen Seat Skoda Engine Alternator Generator 2.0 TDI CAGA 06F903023P
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VW Volkswagen Phaeton 3D Main Fuse Socket Electrical Control Unit 3D0937576
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Audi A5 8T Gateway Control Module Unit ECU 8T0907468F
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Audi A4 B8 Starter Alternator Wiring Loom Cable Harness 8K0971228F
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Volkswagen Golf Mk6 Alternator Generator Electrical Unit Valeo 03L903023F
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BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V5 REM 9293313
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BMW X3 F25 Battery Cable 30dX 35dX Wiring Alternator Starter Cable B+ 8515491
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Display Screen Mercedes C253 Vito W447 W448 Head Unit Touch Monitor A2539005009
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BMW X3 F25 Body Control Module ECU Junction Box JBBFE III V8 9345330
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Mercedes W205 C253 Door Module Rear Left N/S Control Unit ECU A2229001912
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Mercedes A B Class W169 W245 Holder Bracket Engine Control Unit A1695450140
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Audi A4 B7 Body Comfort Control Body Power Supply Module Unit BCM ECU 8E0907279J
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Volkswagen VW Passat B5 TDI Diesel Engine Starter Motor Actuator 068911024G
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Audi Q5 8R 2.0 TFSI CNCD 224HP Engine Unit ECU Kit 8R2907115 Key Ignition Manual
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Audi A3 8V 1.6 TDI CRKB 110HP Engine ECU Kit Ignition + Key 04L907309E Manual
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Mercedes-Benz A B W169 W245 Starter Alternator Battery Lead Cable A1694402805
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BMW E60 E61N LCI E65 EDC-K Control Unit Moudule ECU 6759599
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MINI Cooper One Clubman R55 LCI Rear Bumper PDC Cables Wiring Loom Set 9271376
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BMW E60 E61 X3 E83 E87 E90 120d 320d 520d 150HP M47N2 Engine ECU Kit DDE 7799855
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Smart ForTwo C453 Bonnet Hood Opening Release Sensor 296B20856R
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VW Volkswagen Caddy Maxi 1.6 TDI Diesel Starter Motor 02Z911024K
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Porsche Cayenne 955 Comfort Control Unit Module ECU 7L5937049AA
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BMW Z4 E89 Roadster 23i N52N 204HP Engine Conrol Unit ECU DME 7609656 Manual
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BMW 3 X3 Z4 Series 2 E46 E83 E85 Engine Electronics Unit Box 7534922
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Nissan Qashqai Renault Megane II Dacia Duster dCi Engine Alternator 820072829
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BMW 3 Series E46 M47N 320d Engine Wiring Harness Module Diesel Manual 7787557
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BMW 3 5 E34 E36 1 Windscreen Wiper Wash Wi-Wa Control Unit Module ECU 8366381
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Glow Plug Cable BMW G20 X3 G01 B47 Wiring Harness Engine Glow Module 8580192
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Positive Cable BMW F20 F21 Under Bonnet Battery Wiring Loom 4752820
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BMW X3 F25 Diesel 2.0dX N47N Engine ECUs Kit DDE 8572418 Key Lock CAS4 Manual
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Alternator Generator Mercedes W213 C238 C253 OM656 Engine Valeo 250A A0009064508
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Ford Transit Battery Relay Module Control Unit 12V 8C1T-10B728-AC
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Mercedes W169 W203 W639 W906 Relay 5-Pins Green Control Unit 12V A0045450405
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Audi A3 8V Module BCM Body Control Unit Module ECU 5Q0937084AA
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VW Volkswagen Golf 1K 2.0 TFSI BWA Starter Motor 02M911023G
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BMW E90 E91 E92 Professional CCC DVD Navigation System Controller 9148016
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Mini Cooper One R55 R56 Petrol N12 DME 7588502 Engine Control Unit ECU Manual
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Mercedes Vito W639 646.980 Engine Unit ECU Kit A6461500977 Key Lock Automatic
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Mercedes-Benz W245 Front Bumper Parking Distance Sensor Parktronic Kosmos Black
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Rear Bumper Antenna BMW E93 E93N LCI 2 Aerial Telephone 6970701
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Starter Mercedes Sprinter W906 Diesel Engine Starter Motor Valeo A0061517401
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Mercedes W204 W207 C218 W212 E220 Navigation 20 Control Module Unit A2079005400
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Audi A8 D4 Seat Cable Front Left Right N/O/S Seatbelt Warning Wiring 4H0971365J
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VW Volkswagen Touareg 7L Radio Player Navigation Sat Nav Head Unit 7L6035191R
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BMW X3 E83 LCI 2.0d N47 177HP Engine Control Unit ECU DDE 7811111 Manual
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BMW 5 Series E60 E61 Centre Console Switch Centre DSC 6933529
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BMW E89 Max Brose Footwell Light Module Control Unit ECU FRM3R 9249086
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Renault Master III Opel Movano B 2.3 DCI CDTI Alternator Generator 231001822R
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BMW 3 F30 LCI 330e Hybrid Battery Cooling Refrigerant Double Pipe 9368337
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Audi A4 B8 B9 A6 C8 Engine Starter Motor Denso 2.0 TFSI Petrol 06Q911024
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BMW 3 E46 M47N 320d Engine Wiring Harness Module Diesel Automatic 7787558
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Audi Volkswagen Varta Car Battery AGM 92Ah 850A 7P0915105C
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BMW E46 E60 LCI E83 E87 M47N2 Diesel Starter Motor 7787356
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Battery Cable BMW E60 E61 E63 E64 N62N Alternator Starter Base B+ Lead 7545877
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Skoda Octavia 5E Air Module Control Unit ECU Module Sensor 3Q0959655AQ
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Mercedes CLA C117 W166 Head Unit Sat Nav Navigation Display Screen A1669001420
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Speed Sensor Mercedes Sprinter W906 Impuls Control Unit Module A0155429317
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BMW E38 E39 Basic Control Unit Module ABS ASC Computer ECU 1164130
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Mini One 1.6i R50 W10 90HP Engine ECU Kit DME 7520019 + EWS + Key Automatic
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Mini Cooper 3 R50 R52 R53 W10 1.6 Petrol Engine Starter Motor Lucas 7570488
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TAB AG70 AGM Start Stop Car Battery 70Ah 760A 12V
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Mini Cooper R50 R52 6-Disc CD Changer Multichanger Unit With Magazine 9112761
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Audi A4 B7 Engine Alternator Mount Support Bracket 1.9 2.0 TDI 03G903143D
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Mercedes W204 Navigation Radio Player Head Unit Computer A2049009907
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BMW F20 F21 LCI F22 F23 F30 B38 136HP Engine Control ECU DME 8486839 Automatic
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Porsche Boxter 986 Crash Impact Sensor Module 99661822100
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Audi A4 B9 Front Door Module Control Unit Passenger Side 8W0959592G
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Volkswagen Golf Mk7 Air Module Control Unit ECU 5Q0959655M
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Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129005722
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Audi A5 8T A4 B8 8K 2.0 TFSI CDNC 211HP Engine ECU Kit 8K2907115P Key + Ignition
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BMW E46 E60 E61 E65 E83 E53 M57N Starter Motor LRS01964BN
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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 .