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 CL203 Fuse Box Control Unit Module SAM A2035454901
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Audi Q3 8U PDC Parking Assistance Control Module Unit ECU 8X0919475M
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BMW E90 E91 E92 Professional CCC DVD Navigation System Controller 9148016
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7586134 + CAS3 + Key Manual
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Mercedes W906 Positive Battery Cable Wiring Loom Harness A9064408234
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BMW E90 E91 LCI N47N 320d 163HP Engine ECU KIT DDE 8510829 + CAS3 + Key Manual
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Mini R55 R56 LCI R60 R61 D N47N Engine Injector Module Wiring Harness Cable
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BMW F20 F21 F22 F30 F31 F32 Control Unit Airbag Ecu 9296494
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BMW E90 E91 LCI 320d N47N 184HP ECU KIT DDE + CAS3 + Key 8512047 Manual
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Mercedes Vito W447 Front Fuse Box Relay Control Unit Module A4479060117
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BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9150718
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Fuse Box Mercedes SLK R171 W203 W209 Front Relay Control Unit A2035400050
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BMW X3 E83 Light Control Unit Module LEAR LM II LWR 3451625
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Audi A3 8P BCM Body Control Module Unit ECU 8P0907279N
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Mercedes W204 Radio Control Function Button Knob Controller Unit A2048707658
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Seat Ibiza Skoda Fabia Volkswagen Polo Mk5 6R 1.2 Petrol Alternator 03D903025J
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BMW 5 6 Series E60 E61 E63 E64 Steering Wheel Airbag Wiring Loom Cable Plug
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Mini Cooper R60 Countryman High PL3 SPEG H6 Fuse Distribution Box 9809381
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Mini Cooper One R56 Footwell Light Module High EKS ECU PL3 FRM II 3452677
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Display Screen BMW F30 F31 F32 F33 Central Information 8,8" 6822626
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Mercedes W203 Diesel Engine Starter Alternator Electrical Cable A2035402206
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BMW X5 E53 X3 E83 Control Unit Sliding Lifting Roof Panorama 6955925
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BMW 3 Series E91 E92 E93 Hifi Speaker Tweeter Rear 6942461
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BMW 3 Series E90 E92 E93 M3 LCI Control Unit For Fuel Pump ECU 7842024
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BMW X3 F25 Holder Audio Amplifier Telephone Bracket Mount Trim 9188582
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Mini Cooper Cabrio 1 R57 Aerial Roof Antenna Base Unit 3453891
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BMW X5 Series E70 ECU Body Control Module Junction Box High PL4 JBBFEII 9172364
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BMW F10 F20 F22 F30 Navigation Sat Nav Head Unit High 9351679
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BMW Mini Cooper R56 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456395
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126
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Mini Cooper One R56 High SPEG DC/DC Fuse Distribution Box 3455527
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Door Module Mercedes W213 C238 Front Left N/S Control Unit ECU A2139002022
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BMW E87 E90 E91 Professional CCC Navigation System Controller 9117563
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BMW F20 Head Unit Navigation GPS Sat Nav Infotainment DAB High F10 F30 9274570
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BMW E81 E87 E90 E91 E92 E93 Active Steering Control Unit Module 1277022189
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Mercedes W204 Dashboard Dash Navigation Central Display Screen Monitor
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YAW Rate Sensor BMW E81 E87 E90 E91 Accelerator Speed Module 6781575
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Mercedes W203 W211 Diesel Engine Starter Motor A0051511301
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BMW X1 F40 F48 Mini F55 F56 F57 Engine Starter Motor 8647866
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BMW 1 Series E87 LCI Footwell Light Control Module ECU LOW PL2 FRM II 9204524
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Audi A3 8V A4 B9 Telephone Antenna Amplifier Module Unit Booster 4M0035507
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549F
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BMW E65 E66 CD Audio System Controller Player 9130764
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BMW X3 E83 Radio Navigation System CID Control Unit CD Player 6932812
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BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6872837
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MINI One R50 R52 W10 90HP Engine Control Unit Module ECU DME 7553735 Manual
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Mercedes W203 W210 W220 DIesel Glow Plug Relay Module Unit A0285454032
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VW Volkswagen Golf 6 Polo Radio Head Unit RNS 310 Media Player Unit 3C0035270
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Mercedes W213 Front Door Module Control Module Unit Right O/S A2139002422
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BMW F20 E90 LCI Mini R56 LCI Glow Plug Wiring Wiring Harness Engine Module
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BMW E87 LCI Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 6827064
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BMW X3 Series E83 3.0i M54 Automatic Gearbox Basic Control Unit EGS 7532988
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Display Screen Mercedes W907 W910 Head Unit Touch Monitor 7" A9079001703
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Navigation Screen Mercedes W212 1 Head Unit Sat Nav Center Display A2129005000
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BMW E46 E60 LCI E83 E87 M47N2 Diesel Starter Motor 7787356
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BMW E65 E66 Wiring Loom Cables Rear Bumper PDC 6907313
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Mercedes R171 Convertible Roof Top Control Unit Module ECU A1718204226
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005908
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BMW E60 E81 E90 LCI Adapter Cable CIC System 9185171
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Mercedes Vito W639 Door Module Front Right O/S Control Unit ECU A6399003200
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Mini Navigation Head Unit R55 R56 R57 LCI R60 R61 CHAMP 2 Sat Nav DAB 9283529
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Mercedes W204 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2045401706
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BMW 1 3 X1 E81 E82 E84 E87 E90 E91 E92 2 Radio Business CD Audio Player 9177209
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Mercedes W205 Ambient Color Light Module ECU A2229005118
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BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9237047
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Mini Cooper R56 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456987
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Mercedes W203 ECU Control Unit Crash Impact Sensor Module Air Module A2038207385
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Air Module Mercedes W639 W906 Control Unit ECU Air Sensor 0285011060
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Radio Head Unit Mercedes W176 W246 Audio 20 Media Player Navigation A2469008819
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BMW E88 Cabrio Hydraulic Pump Convertible Folding Top Roof Unit 7171303
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Mini R55 R56 R57 LCI N12 N14 N16 N18 Engine Alternator Generator Petrol 120A
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BMW 5 6 Series 1 E60 E61 E63 E64 Battery Cable Holder Mounting B Base 6932006
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Mercedes Vito W639 Airbag SRS Module Control Unit ECU Air Bag A0009010201
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BMW 3 Series E91 Light Module ECU Footwell Module PL2FRMFA Lear 6987998
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BMW E87 ECU Body Control Module L2 JBBFE PL2 61359131779 9131779
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BMW 1 3 E81 E87 E90 E92 Comfort Access Passive Go Control Unit Module 6987184
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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 .