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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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9278074
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BMW 1 3 Series E81 E82 E84 E87 E88 E90 E91 E92 Power Distribution Box 6936653
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Audi A4 B7 Bluetooth Interface Phone Conectivity Control Module 8P0862335H
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Mini Cooper R56 Engine N12 Wiring Loom Harness Injection Valve Ignition 7585946
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Mercedes C204 Sound Audio Amplifier Unit Harman Becker A2129005213
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Ignition Coil Mercedes W202 W203 M111 Cable Connector A0001501780
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BMW 5 6 7 E60 E61 E63 E65 N62 N62N Alternator Supporting Bracket Mount 7533837
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Alternator Generator Mercedes W221 OM642 Diesel Engine 220A A0131540602 11304N
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Mini Cooper R60 Footwell Light Module High EKS SZT ECU FRM3R PL3 Lear 3457429
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BMW F45 Alternator Generator 14V 180A DENSO 8680374
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VW Volkswagen Polo 6R PDC Parking Sensor Control Unit Module 6R0919475C
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Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469002718
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CD Player BMW E81 E82 E87 E88 E90 E91 E92 Radio Professional Head Unit 9258167
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BMW MINI Cooper R55 R56 R57 Engine Computer Mount Support Bracket Holder 2754241
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BMW 3 Series E46 M47N Cable Alternator Starter Base B+ 7787581
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Mercedes-Benz Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600604
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Mercedes W205 W213 Ignition Central Lock Control Unit Module ECU A2139005528
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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Audi A4 S4 B9 3.0 TFSI 355HP CWGD Quattro Engine Control Unit ECU 06M907309D
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BMW X3 G01 Led Light Daytime Running Module Control Unit ECU Right O/S 7466108
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BMW 3 Series E90 E91 LCI N47N 320d ECU Basic DDE Control Unit 8512047 Manual
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Mini Cooper F56 B38 1.5 136HP Petrol Engine ECU Kit DME 8655106 BDC + Key Manual
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BMW F80 M3 F82 M4 S55 450 HP Engine Control Unit ECU DME 8699973 Dual Clutch
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 + CAS3 + Key Manual
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Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter NAPA A6519062300
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Audi A3 8P Starter Motor Engine Diesel Actuator Unit 02A911023 LRS00791
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Mercedes Sprinter W906 Engine Wiring Loom Harness Cable CDI Diesel A6515460161
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Mercedes W176 W246 180 CDI 607.951 109HP Engine Unit ECU Automatic A6079002300
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Audi Q7 4L Engine Starter Motor Actuator Starter 079911021D
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Audi Q5 8R Multimedia Radio Control Module Head Unit 4G0035061Q
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Distance Radar Module Mercedes GLE W166 C292 Control Unit A0009059906
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Audi Q7 4L Diagnostic Interface Gateway Control Module Unit ECU 4F0907468N
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BMW F20 F21 F23 F30 F31 F32 Telematics Control Unit Module ATM ECE 4G 2622598
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Audi A3 8V Volkswagen VW Golf Mk7 Negative Cable Ground Wire Harness 5Q0971250N
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Fuse Box Mercedes W169 W245 Sam Control Module Unit ECU A1699010100
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Wiring Mercedes A209 Rear Trunk Lid Wiring Harness A2094400705
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BMW E38 Headlight Light Check Module Control Unit ECU Lear LCM II 8372875
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Mercedes-Benz W906 313 CDI OM651 Diesel Engine Control Unit CRD ECU A6519000601
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Audi A4 B8 2.0 TDI CNHC Diesel Alternator Generator 04L903017A
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Sam Unit Mercedes S203 W203 Rear Module Fuse Box A2095450701
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BMW 3 5 7 X3 X5 Z4 Series E38 E39 E46 E53 E85 E83 Control Unit EWS III
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Audi A4 B8 Door Module Rear Left Right N/O/S Control Unit Module ECU 8K0959795C
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BMW 5 Series E60 Light Control Module Unit Lear LME6X MAN. LWR (LCM) 6943287
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VW Tiguan 5N Central Gateway Control Unit Module Relay ECU 1K0907530S
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Seat Ibiza 6J Relay Black Control Unit 7 Pin 12V 3U0941597A
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Mercedes W203 C209 Battery Starter Alternator Wiring Harness Cable A2035403533
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BMW E81 E87 E90 E91 E92 E93 Active Steering Control Unit Module 1277022065
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BMW X5 Z4 E46 E53 E85 Drive Window Lifter Motor Left N/S Front 8362063
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BMW F20 F21 LCI M140i B58 Petrol ECU Control Unit Module DDE 8689723 Automatic
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Audi Q7 4L Amplifier BOSE Premium Audio Sound System Module 4L0035223J
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Light Module BMW F11 Control Footwell Lightning ECU Unit FRM3 9251975
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BMW 1 3 5 Series F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module
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Audi A4 B7 Audio Sound System Amplifier Bose 355013 5631B6
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Mini R50 R53 Radio Boost CD Player Head Unit Autoradio Player 4154934
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Alternator Generator Mercedes Sprinter W906 Engine Diesel 180A 14V A0009068802
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Land Rover Freelander 2 2.2 Diesel DOHC Engine ECU Module 6G9112A650AE Manual
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Mini Cooper One R56 Footwell Light Module ECU HIGH Lear PL3 FRM II 3452092
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BMW 4 F33 F83 M4 Cabrio Front Door Driver's Side Wiring Loom Cables 9337212
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SD Card Mercedes X156 W176 W205 Garmin Map Pilot Navigation Europe A2139062610
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Mercedes W176 Multimedia Box Wiring Loom Electrical Harness A1765401201
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Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D
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Mini Cooper R56 LCI R58 N16 1.6 122HP Engine ECU Kit DME 8617050 CAS 3 + Key
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BMW E92 325i N52N 218HP ECU Control Unit Kit DME 7567362 CAS3 + Key Manual
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BMW Z4 E86 Coupe 3.0si N52 265HP ECU Kit DME 7571510 EWS + Key Manual
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BMW F20 F30 F36 Rear Electronic Module REM Fuse Box Control Unit V2 ECU 6809050
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Audi A5 8T CD Player Radio Multimedia MMI Head Unit ECU 8T2035666D
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VW Volkswagen Polo 5 1.2 TDI Engine Wiring Harness Loom Cable 03P971612
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Audi Q7 4L Fuse Relay Box Module Electrical Control Unit 4L1937503
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Volkswagen Seat Skoda Audi 2.0 TDI Diesel Engine Starter Motor Valeo 02E911024H
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Starter Mercedes W177 M282 Petrol Engine Starter Motor A2829062400
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BMW E91 Touring HiFi Amplifier Speaker System Control Unit Module 9143161
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Head Unit Mercedes C205 Radio Player USB Sat Nav Harman A2059008430
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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 .