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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Fuse Box Mercedes C118 W177 W247 Engine Compartment Relay Box Module A1775404307
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Mercedes W203 C180 Kompressor M271.946 Engine ECU A2711532291 Automatic
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Audi A6 C6 3.0 TDI 240HP CDYA Quattro Engine ECU Kit 4F9910402A Ignition + Keys
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Trunk Lid Module BMW X5 E70 X6 E71 Control Unit Rear Tailgate Lift 7230669
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Volkswagen Touran 1T Parking Control Unit Module Sensor 1K0919283A
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Mercedes W176 W246 Radio COMAND Nav CD Player Control Head Unit A2469003519
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Alternator Audi A6 C6 3.0 TDI Diesel Engine Generator 059903015R 1068673
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Audi Q5 FY Gateway Control Module Unit ECU 8W5907468F
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Mercedes W901 OM602 Ignition Lead Electrical Cable Harness A9015407309
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Mini One R55 R56 Petrol N12 1.4 95HP Engine ECU Kit DME 7640004 CAS3 Key Manual
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BMW 5 7 X5 E34 E38 E39 E53 Petrol Engine Starter Motor 1729981
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Mercedes W140 Electric Seat Adjustment Control Unit Module ECU A1408205126
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Engine Wiring Mercedes W168 668942 Diesel Module Loom Harness Cables A6681500033
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BMW F20 F30 F36 Rear Electronic Module REM Fuse Box Control Unit V2 ECU 6809050
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Mini Countryman F60 BMW F45 X1 F48 Air Module Control Unit ECU 7911252
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Ford Transit MK8 Fuse Box Relay Body Control Comfort Module BCM BK2T14B476BU
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Seat Control Unit BMW X5 E70 E87 E90 E91 E92 Module Memory ECU 9162959
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BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9868386
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BMW 3 Series E92 ECU Body Control Module Junction Box L1 PL2 JBBFE II 9176877
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Mini Cooper S R55 R56 R57 N14 1.6 ECU Basic Control Unit DME 7610011 Manual
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BMW X3 X5 Z4 E39 E46 E53 E83 E85 GPS Navigation Computer DVD 6920182
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Audi Q7 4L 3.0 TDI V6 Diesel Engine Cable Wiring Duct Channel Cover 059971341E
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Audi A6 C7 Front Seat Control Module Unit Right O/S 4G8959760
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Renault Master III Radio CD Player Bluetooth Head Unit USB MP3 281156951R
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BMW X6 E71 Antenna Amplifier Diversity Control Unit Module 868 MHZ 9130160
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Mercedes-Benz A E M Class W163 W168 W210 CD Player Audio 10 Stereo Radio Unit
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Head Unit BMW X3 E83 Z4 E85 Mini R50 DVD GPS Navigation System Computer 9159129
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Alternator Nissan Qashqai 2.0 dCi Diesel Engine Alternator 12V 150A 23127JG71B
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M-Audio Controller BMW E60 E61 E63 E64 Radio Player M-ASK CD Head Unit 6955346
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Mercedes W213 Door Module Front Right O/S Control Unit A2139004409
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BMW 5 X3 Series E60 E61 E83 PDC Parking Ultrasonic Sensor Bluewater 6989245
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BMW E88 Cabrio Wiring Loom Set PDC Rear Complete Harness Parking Sensor
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BMW X5 X3 E53 E83 Control Module Unit Sliding Lifting Roof
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Volkswagen Touareg 7L Power Supply Control Module Unit ECU 7L6937049AF
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Door Module Mercedes W205 Rear Right O/S Door Control Module A1679004811
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BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9167201
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Mercedes W177 A35 AMG 306HP 260.920 4Matic Engine ECU Control Unit A2649001200
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Starter BMW E90 Petrol N52 N53 Engine Starter Motor Unit 7521116
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BMW F10 F11 530d N57 245HP Engine Control Unit ECU Module DDE 8511385 Automatic
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Audi Q3 8U Battery Positive Terminal Cable Plus Pole Wiring Harness 5N0971228F
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BMW E46 M47N M57N Alternator Generator 150A Valeo 7789980
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BMW F20 F21 M135i N55 231HP Petrol Engine Control Unit ECU DME 8626472 Manual
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Radio Player Mini Cooper One R55 R56 CD Audio Player Head Unit 3454566
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Audi A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335D
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Vauxhall Opel Combo Positive Battery Cable Lead Wire Cabling 51919499
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Mercedes ML W166 Head Unit Radio Player Sat Nav Tel SD Card Unit A1669009808
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Door Module Mercedes W213 C238 Front Left N/S Control Unit ECU A2139002022
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Mercedes W213 Center Console Cupholder Lamp Wiring Harness A2135402045
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Ford Transit MK7 Fuse Box Body Control Module ECU BCM Unit 8C1T-14A073-CG
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BMW Z4 E89 2.3i 3.0i N52N Petrol Engine Wiring Loom Harness Cable 7598076
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Mercedes W221 Power Supply Battery Control Module Unit A2215400401
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BMW F97 F98 G01 G02 G20 G30 Engine Starter Motor 8671505
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Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802F
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Mini Cooper R56 R57 High SPEG PL3 H4 Fuse Distribution Box 3455442
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Mercedes SLK R171 Air Module System Control Unit ECU A1718206526
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BMW X1 F48 Dashboard Monitor Display Central NAV Information Screen 6,5" 8803369
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Audi A3 8Y Rear Door Control Module Unit ECU Driver's Side Right O/S 5Q0959595L
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BMW E60 E90 325i 525i N52 218HP Engine ECU Kit DME 7561684 CAS2 + Key Manual
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Volkswagen Phaeton 3D Engine Alternator Generator 14V 190A 5.0 Diesel 07Z903021F
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Ford Transit Custom MK8 Body Control Module Unit BCM ECU BK2T14B476AU
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BMW E46 M43 M57 Battery Cable Alternator Starter Base B+ Lead 1707017
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Adblue Module Mercedes W164 W212 W221 Control Unit ECU A6429009900
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Audi Q7 4L On Board Onboard Supply Module Control Unit ECU 4F0907280B
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Mini Cooper S R53 W11 170HP Petrol Engine ECU Kit DME 7542310 EWS3 + Key Manual
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BMW F40 X1 F48 Mini Countryman F60 Engine Starter Motor 12V 8686185
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Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105
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Cover BMW F13 F12 F11 Engine Control Unit ECU Box Top Cover Shield 7555178
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VW Polo MK5 1.2 TDI CFWA Alternator Wiring Starter Motor Harness 6R0971349AH
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Volkswagen Golf CD1 Tailgate Trunk Lid Wiring Harness Rubber Cover 5G6971829B
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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 .