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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Audi A4 B8 2.0 TDI Alternator Generator 03G903016G
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Mercedes W204 Air Module Crash Sensor Module A2048203126
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Audi Q7 4L 3.0 TDI BUG Power Supply HV Battery Control Unit ECU 4L0910181
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Audi TT FV 8S 2.0 TFSI CHHC 230HP Quattro Engine ECU Kit 06K907425B BCM Key
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BMW 5 6 Series E60 E63 On-board Navigation Display Monitor Screen 6,5" 6957342
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Starter Motor Mini Cooper One F54 F55 F56 F57 F60 B37 B47 Engine 8570845
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Audi A6 C6 Body Control Comfort Unit Module BCM Unit ECU 4F0907289G
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BMW Z4 E85 2.0i N46 150HP ECU Control Unit Module Kit DME 7565300 EWS Key Manual
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BMW E60 Light Control Module Unit Lear LM F6X Lear 9116260
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Mini Cooper R56 Footwell Light Control Unit Module LOW ECU PL3 FRM II 3452093
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Audi A3 8P Automatic Gearbox Control Module Unit ECU 09G927750DG
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Body Control Unit BMW F01 F10 F11 F12 Module ZGW-01 High Central Gateway 9213187
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BMW E90 E92 E93 Switch Cluster Steering Column Cruise Control 9110887
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BMW E30 E31 F01 F02 F10 F11 Top View Mirror Camera 9240274
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Mini F55 Air Module Control Unit ECU 7911249
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Earth Ground Cable BMW F10 N47N Diesel Battery Cable Engine Wiring 8517616
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BMW E39 Audio Amplifier Radio Sound System Hifi AMP Control Module 8362444
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BMW E90 E91 LCI N47N 320d 163HP Engine ECU KIT DDE 8510829 + CAS3 + Key Manual
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Ford Transit Custom Mk8 Dashboard Display Screen Monitor H1BT-18B955-FF
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FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9324776
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Ford Transit MK7 2.4 TDCI 100HP Engine Control Unit ECU 6C11-12A650-AL Manual
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BMW 5 Series E60 525i M54 192HP ECU Engine Control Unit DME 7541335 Automatic
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BMW F30 F31 320i N20 184HP Engine Control Unit ECU DDE 7649131 Manual
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BMW E90 Footwell Module Light Module Control Unit ECU Resource 6961135
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Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A A0009067900
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BMW E87 E90 E91 118i 318i N46 129HP ECU Unit KIT DME CAS2 Key 7561834 Automatic
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Alternator Generator BMW F10 F20 F30 LCI Diesel Engine Unit Denso 180A 7640875
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Audi Q2 GA A3 8V Front Door Control Module Unit Right O/S 5Q0959393K
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Mercedes W212 Display Screen Information Navigation Dashboard A2129002216
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Parktronic Wiring Mercedes W177 Front Bumper Parking Assist Harness A1775403803
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Audi A5 8T 5 Door Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104AF
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Mercedes CLK W209 Automatic Gearbox EGS Control Unit Module ECU A0325452332
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Audi A3 8V Control Unit PDC Parking Sensor Daytona Grey - Z7S 5WA919297B
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BMW 7 Series E65 E66 Audio System Controller MD MiniDisc 6941677
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Xenon Adaptive Headlight Module BMW F22 F23 Control Unit Driver Module 7363090
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Mercedes W203 Door Module Front Right O/S Control Unit ECU A2038205626
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BMW F10 F11 520d ed N47N 184HP Engine ECU Kit DDE 8517862 Key CAS4 Manual
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Mercedes-Benz C CLK Class W203 C209 Fuse Box Cover Engine A2035450403
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Citroen Dispatch Jumpy 9HM DV6UC 1.6 HDi 90HP Engine Module Unit ECU 9663786880
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Volkswagen Golf Mk5 2.0 TFSI Petrol Alternator Generator 06F903023HX
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Mini Cooper S R56 Rear Bumper PDC Cables Wiring Loom Set 9140177
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BMW Mini Cooper R55 R56 R57 N12 Engine Extension Cable Blow By 7568769
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Mini Cooper F54 F55 F56 ECU Body Domain Controller BDC Module Unit 5A402F3
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Mercedes Sprinter W906 OM646 Engine Diesel Alternator Generator A6461540002
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Audi A4 B7 Body Comfort Control BCM Supply Module Unit ECU 8E0959433CQ
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Audi Q7 4L Door Control Module Unit ECU Rear Left Right N/O/S 8K0959795B
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BMW E36 316i Engine Petrol M43 102HP ECU Kit DME 1432521 Automatic Gearbox
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BMW G01 Fuse Distribution Box Holder Control Unit Bracket Carrier 9397076
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 65126943437 6943437
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BMW 6 Series E63 E64 Negative Battery Cable Minus Pole IBS Control Unit 9215951
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Mercedes W203 W211 C209 M271 Petrol Engine Alternator A2711540802
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BMW 1 Series E82 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9267200
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Microphone Mercedes W447 W907 W910 Hands-free Interior Mic Unit A4478200035
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Audi A4 B6 BCM Body Control Module Unit ECU 8E0907279F
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LIM Module BMW i3 I01 Hybrid Electric 60Ah 94Ah 120Ah Control Unit 9380352
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BMW E82 Footwell Light Control Unit Module ECU Lear FRM3R PL2 9230453
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BMW X3 E83 Positive B Battery Terminal Point Case 8387540
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Fuse Box Mercedes W204 Rear SAM Relay Control Unit Module A2049009501
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BMW F10 F11 520d Diesel N47N 184HP Engine ECU Control Unit DDE 8510137 Automatic
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BMW 1 Series E81 Footwell ECU Light Control Module MAX Kuester FRM3R PL2 9224599
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Mini Cabrio R57 ECU Air Control Unit Module Controller 3454345
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Light Module BMW E90 Control ECU Unit ECU PL2 FRMFA Lear 6987999
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BMW Z4 E85 Rear Bumper Antenna Mounted Aerial Unit FM 6912244
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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Generator 8200404459
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BMW E46 330i M54 231HP Engine Control Unit Module ECU DME 7509942 Manual
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Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Unit 3456760
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BMW X3 E83 Radio Navigation System CID Control Unit CD Player 9118823
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VW Volkswagen Scirocco Mk3 Power Starter Motor Relay 12V 50A Plug 7N0951253
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Audi A4 B8 A5 8T Connector AUX Adapter Port Socket Plug 8K0035474B
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Mercedes W177 AMG Automatic Gearbox Transmission Control Module ECU A0009009021
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Opel Combo Corsa Display Screen Dashboard Multifunction Monitor Unit 009164455
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VW Volkswagen Polo 6N 1.4 APQ Petrol Starter Motor 085911023JX
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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 .