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 W164 ML280 CDI OM642.940 Engine Control Unit ECU Kit A6421506691 Key
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Mercedes CLK C209 Fuse Box Relay SAM Module Control Unit A2095452001
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Navigation Head Unit BMW F20 F21 F30 F31 LCI F32 Radio CD Player High 2 9867503
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Mercedes W204 W207 Fuse Box Prefuse Box Module Relay Holder A2075402550
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Mercedes Vito W639 SAM Module Electric Control Unit A6395450601
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Audi A3 8V Front Door Module Control Unit Module Right O/S ECU 5Q0959592E
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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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BMW 5 X5 Series E61 E61 LCI E70 Telematics Bluetooth Control Unit Module 9171347
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Engine Wiring BMW F46 Mini F56 B47 Loom Harness Injection Valve Ignition 8516253
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MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970
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BMW F20 F21 114i N13 102HP Engine Unit ECU Kit DME 7640755 Key FEM Lock Manual
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BMW F10 F11 Seat Loom Cable Lordosis Lumbar Pump Control Front Left N/S 9230554
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BMW G20 Reverse Rear View Camera 5A63731
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Mercedes Sprinter W907 W910 Front SAM Body Control Module Unit ECU A9079000806
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Relay Box BMW E60 E61 E63 E64 Rear Power Distribution Fuse 6906558
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Audi A4 B8 A5 8T Parking Module Electric Brake Control Unit 8K0907801H
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Vauxhall Movano A G9T722 Engine Control Unit ECU Module Diesel Manual 8200091428
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Mercedes-Benz S-Class W220 Door Control Module Left Rear N/S A2208216279
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BMW 3 X1 F30 LCI F48 Telematics Telephone Control Module ATM ECE 3G 6809306
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Volkswagen Golf CD1 Tailgate Trunk Lid Wiring Harness Rubber Cover 5G6971829B
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Crash Impact Sensor Mercedes C118 W177 W247 Front Acceleration Unit A1679052401
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Mercedes W906 313 CDI OM651.955 129HP Engine ECU Kit A6519002600 Key Lock Manual
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BMW E65 E66 CD Audio System Controller Player 9130764
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Audi A5 8T Display Screen Radio Multimedia Navigation Display 8T0919603C
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Audi A3 8P TT 8J A4 B7 Ipod Interface Multimedia Storage Compartment 8E0857925B
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BMW E60 E61 E63 Control Unit Gateway Module ECU 6975686
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Audi A3 8V Head Up Navigation Multimedia Screen Display Unit 8V0857273N
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BMW F20 F21 F22 F30 F31 LCI Head Unit Media DAB Navigation Professional 8804457
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BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU Kit DDE 8513184 2 Keys CAS4
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Speaker Amplifier Audi A4 B8 A5 8T Stereo Radio Sound System Amp 8R0035223G
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Battery Cable BMW F12 F13 Underfloor Positive Plus Lead Wiring Harness 9151341
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Mini Cooper One R55 R56 R57 Radio Boost CD Player Head Unit 3453634
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BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME 7568842 CAS3 Key Automatic
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GPS Module BMW E81 E87 E90 E91 LCI Combox Telematics Control Unit 9257162
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Ford Transit Heat Shield Insulation Alternator Engine Cover CC11-199049-AA
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Mercedes W203 C220CDI OM611.692 116HP Engine Unit ECU Kit A6111537779 Key Lock
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BMW 3 Series E93 E93N LCI Cabrio Battery Cable Plus Pole 9160101
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BMW F30 LCI F31 F32 Top Hifi Audio System AMP Amplifier Harman Kardon 9393194
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VW Polo 9N Battery Terminal Fuse Distribution Cable Cover Power Board 6Q0937517
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715451001
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Volkswagen Tiguan 5N Engine Starter Motor 02M911024C
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BMW 5 Series E60 E61 LCI Battery Cable Lead Positive Underfloor 6927704
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BMW E60 E63 E87 E90 Control Unit Sensor Fuel Pump ECU 7169960
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VW Volkswagen Crafter 1 Wiring Loom Harness Cable 2N0971068
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Audi A5 8T Crash Impact Sensor Unit Module Air Unit 8K0955557B
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BMW E60 E61 Front Seat Occupancy Sensor Mat 6940422
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BMW X3 E83 2.0d Diesel M47N2 Engine Wiring Loom Harness 3417859
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Audi A3 8V 1.4 TSI Petrol Starter Motor Engine Actuator Unit 0AM911023R
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio Professional CD Audio Player 9189200
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BMW X5 E70 M Audio Professional Radio CD Player Navigation Head Unit 9186211
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Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907064EC
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Mercedes SLK R171 Fuse Box Rear SAM Relay Control Unit Module A1715451901
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BMW X3 E83 Telematics Bluetooth Control Unit Module 9181881
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BMW F40 ACSM5 Control Unit Air Module ECU Control Module 5A19AC3
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Mercedes W245 B200 CDI OM640.941 140HP Engine ECU Kit A6401508334 Key
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BMW X3 F25 Battery Cable 30dX 35dX Wiring Alternator Starter Cable B+ 8515491
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Seat Module BMW E60 E61 E65 E66 Front Seat Control Unit Module ECU 6927312
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Mercedes Sprinter W907 W910 Ignition Lock Control Unit Module ECU A9079006906
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BMW E36 E39 E46 Engine Starter Electrical Earth Cable 1724740
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU Kit DDE 8512498 CAS3 + Key Manual
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Mercedes H243 H247 Body Control Module BCM Unit ECU A2479005615
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Mini R55 R56 LCI R60 Alternator Generator Bosch 150A Petrol 7604782
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BMW E81 E87 E90 E91 LCI E92 E93 CD Radio Business 9236531
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BMW F40 Power Distribution Fuse Box LIN Control Unit Module 5A0BD89
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BMW F10 F11 Pedestrian Protection Sensor F-Optic Control Unit 9318777
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Mercedes W169 Front Bumper Parking Distance Sensor Parktronic Polar Silver 761
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On-Board Monitor BMW X5 E70 X6 E71 Sat Nav System Screen 8,8" 9194064
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BMW E87 E90 N46 118i 318i 129HP ECU Engine Module KIT DME 7561834 CAS2 Key
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BMW E61 E65 E66 E67 HKL Bootlid Trunk Lid Control Unit Module
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BMW F10 F11 F20 F21 F22 F30 F31 F32 Navigation Sat Nav Head Unit High 6819950
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BMW 3 Series E90 LCI Footwell Light Control Module LCM LED Basis 9241005
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BMW Z4 E85 2.5i M54 192HP Engine ECU Control Unit Module DME 7527072 Manual
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059003729
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Mercedes W213 OM654 Battery Cable Starter Alternator Wiring Harness A2385406926
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BMW 1 3 Series E81 E87 E90 E91 LCI N47 Diesel ECU DDE engine control 8506375
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Volkswagen Transporter LT 35 2.5 TDI Alternator Bracket Vw 074145169F
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BMW E87 E90 116i 316i Petrol Engine N45 ECU Kit DME 7557809 + CAS2 + Key Manual
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Mercedes CL203 CLC 350 M272.960 272HP Engine Module ECU Kit A2721531291 2 Keys
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Mercedes W213 Dashboard Switch Panel A2139053303
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Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508
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Mercedes CLK W209 Convertible Rain Light Sensor Windscreen Module A2098203026
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Mercedes W204 Display Screen Multifunction Navigation Dashboard A1729004004
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BMW X3 G01 Headlamp LED AHL Adaptive Headlights Control Module FLM 01 7472765
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BMW 5 X5 Series E39 E53 Radio Business CD Player 6908783
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BMW 5 Series E60 E61 Cable Loom Driver's Door Wiring Harness 6972569 6972564
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Audi A3 8P MMI Multimedia Interface Unit Module Control ECU 8P0035785
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Mercedes Sprinter W906 Fuse Box Relay Module Control Unit A9065454401
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BMW E60 E90 E91 330i 530i Engine N52 ECU Kit DME 7559178 CAS2 + 2 Keys Manual
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ECU Unit Mini Cooper R55 R56 LCI R60 Petrol N16 122HP Engine DME 7620987
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BMW Z4 Series E85 Hifi System Amplifier Speaker System Unit 6929689
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Nissan Qashqai Diesel Engine Starter Motor Actuator Starter 23300JG70A
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Audi A5 8T 2.0 CNCD Petrol Starter Motor 06H911024B
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Mercedes GLE250 W166 OM651.960 204HP Engine ECU Kit Ignition + Key A6519004201
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BMW X3 E83 Radio Navigation System CID Control Unit CD Player 6943441
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Mercedes W204 Aerial Antenna Control Unit Bracket Holder Mount A2045452647
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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 .