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 F20 F21 F22 F30 F31 F32 F33 Fuse Box Body Control Unit Module REM V5 6819336
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BMW E87 LCI 116i E90 316i N43 122HP Engine Control Unit ECU DME 7579142 Manual
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BMW X5 Series E70 Footwell Light Control Module Unit LEAR FRM3R VDM 6801294
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Mercedes C205 Control Body Comfort Module Unit ECU A2059007147
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BMW E60 E61 LCI 550i N62N 367HP Engine Unit Module ECU DME 7577664 Manual
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BMW F10 F11 On Board Display Central Information Screen Monitor 10" 9243897
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9147387
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BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8574095 Key FEM Automatic
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BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8518424 + FEM + Key Manual
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BMW F20 F30 F32 120d 320d 420d N47N 184HP ECU Kit DDE 8517862 + Key + FEM Manual
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Mini Cooper S R56 LCI R60 N18 1.6 184HP Engine Unit ECU Kit DME 7620985 Manual
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BMW E90 E91 E92 N52N 325i 218HP Engine ECU Kit DME 7577068 + CAS3 + Key Manual
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BMW X5 E70 3.0d M57N2 235HP Engine ECU Kit DDE 7805585 + CAS3 + Key Automatic
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Mercedes Vito W639 OM646.980 Engine ECU Control Unit Module A6461501077 Manual
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BMW E90 E92 335i Petrol N54 306HP ECU Engine Unit Module DME 7586933 Automatic
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VW Volkswagen LT 35 Immobilizer Control Unit Module Temic 2D0953257
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Jaguar XF X250 3.0 D AJV6D Engine Control Unit ECU 9X2Q12A650PAD Automatic
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Mercedes Sprinter W901 W638 Fuse Box Relay Control Unit Module A0005400650
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BMW F10 F11 F20 F21 F22 F30 F31 F32 Navigation Sat Nav Head Unit High 6819950
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Head Unit BMW E90 E91 Radio CD Player Navigation Sat Nav DAB Unit 9273187
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VW Volkswagen LT 35 BBF 95HP Engine Control Unit Module ECU 074906018BD Manual
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Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100
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Peugeot Expert Citroen Dispatch 2.0 HDI 120HP Engine Unit ECU 9664611380 Manual
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Fiat Doblo 1.3 Diesel Multijet 90HP Engine Control Unit Module ECU 55246588
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Citroen C4 1.6 HDI Diesel Engine Control Unit ECU Module EDC 9665674480
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Mercedes Vito W639 OM646.980 Engine ECU Control Unit Module A6461500977 Manual
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BMW F20 F30 F32 120i 320i 420i N20 184HP Engine Unit ECU DME 8631725 Automatic
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Renault Master 2 G9U 754 2.5 dCi Diesel Engine Unit ECU 8200311550 Manual
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BMW X5 E53 Westfalia Towing Hitch Module Uni CAN Control Unit 506737
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BMW F20 F21 LCI M140i B58 Petrol ECU Control Unit Module DDE 8689723 Automatic
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VW Volkswagen LT 35 Glow Plug Module Relay Control Unit Black 2D0911253
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Mercedes Sprinter W901 Central Lock Locking Control Unit Module A0165459232
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Volkswagen VW LT 35 Diesel Engine Starter Motor Unit Napa 069911023LX
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Jaguar XF X250 Diesel Engine Starter Motor 12V DENSO 8X2311001AA
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BMW F20 F23 F11 N55 Engine Wiring Harness Motor Adapter Sensor System 2 7592529
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Engine Wiring Mercedes W906 Diesel OM651 Cable Loom Harness A6511502900
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Alternator Generator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102
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BMW F20 F21 LCI F23 GPS Navigation Display Screen Android Auto CarPlay 10,25"
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BMW Z4 E89 Roadster HiFi Speaker Sound System Amplifier AMP Unit 9118032
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BMW E60 E90 E91 X5 E70 Mini R56 FBAS Video Control Unit TV Tuner Module 9206973
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Mini F55 F56 F60 LCI Navigation Touch Screen 8.8" Display Nav Head Unit 9824925
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Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6461501388
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BMW X3 E83 2.0d Diesel M47N2 Engine Wiring Loom Harness 3417859
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Mercedes Vito W639 Coolant Radiator Fan Relay Control Module A0025424419
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Display Screen Mercedes W176 W246 Central Information Dashboard Dash A2469016002
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Mercedes W176 A200 CDI BlueEFFICIENCY OM651.901 Engine Module ECU A6519007600
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Mercedes R171 W204 W212 Starter Motor Bosch M272 Engine Petrol A0061516001
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BMW X5 E53 Radio Stereo Screen Multifunctional Display Head Unit 6914605
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Mini Cooper R50 R52 R53 W10 1.6 Petrol Engine Starter Motor 7570488
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VW Volkswagen Polo 5 1.2 TDI Engine Wiring Harness Loom Cable 03P971612
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Mini R50 R52 Petrol W10 Compact Alternator Generator 105A 7515029
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Pedestrian Protection Sensor BMW F10 F11 Front Bumper Crash Impact Unit 9261962
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BMW F33 F83 M4 Convertible Folding Top Roof ECU Module Control Unit CTM 9381020
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BMW Z4 E85 E46 Hall Effect Switch Cable Microswitch 8236846
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Engine Wiring Mercedes W204 W212 OM651 Diesel Harness Loom Cable A6511504633
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BMW Z4 E85 Roadster 2.5i N52 177HP ECU Kit DME 7571510 EWS + Key Manual
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BMW E93 Footwell ECU Light Control Unit Module FRM3R PL2 Lear 9224594
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Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049069801
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BMW F10 Light Control Footwell Module ECU Unit FRM3 9251975
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Mercedes-Benz A B W169 W245 Door Cable Harness Wiring Loom Front Left N/S
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4 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525
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BMW F10 F20 F30 F31 Mini F55 F56 Seat Heating Module Control Unit ECU 7490465
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BMW E53 4.4i M62 286HP Engine ECU Kit DME 7508698 + EWS3 + Key Automatic
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MINI Cooper S R52 R53 W11 170HP Engine Control Unit ECU DME 7542310 Manual
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BMW E81 E87 LCI E90 E91 118i 318i N43 143HP Engine ECU DME 7580279 Automatic
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BMW F80 M3 F82 F83 M4 431HP Engine Unit Module ECU DME 8679840 Dual Clutch
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Mercedes Vito W447 Door Module Front Right O/S Control Unit ECU A4479008006
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BMW F20 F21 F30 F31 F34 GT Rain Sensor Front Windscreen Light Unit 9293279
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Mercedes SLK R171 Rain Sensor Front Windscreen Light A1718204026
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BMW X1 E84 Body Control Module M Junction Box PL2RR JBBFE IIIR 9329800
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BMW 1 3 Series E87 E90 E91 E92 Seat Control Unit Module ECU 9134662
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Mercedes W204 USB Port Cable Multimedia Interface Cable MI2-Ipod A0028272104
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Mercedes W177 Electrical Wiring Harness Starter & 3-Phase Alternator A1775406500
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3 x BMW E88 E89 E93 Convertible Cabrio DWA Alarm System Module 6989713
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Mercedes-Benz B W245 Parktronic Parking Sensor Wiring Cable Rear PDC A1695407205
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VW Polo MK5 1.2 TDI CFWA Alternator Wiring Starter Motor Harness 6R0971349AH
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Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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Mercedes Vito W447 Front Passenger Side Fuse Box Control Unit Module A4475407880
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Mercedes SLK R171 Rear SAM Control Unit Module Relay Fuse Box A1715450701
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Body Control Module BMW X5 E70 ECU Junction Box LOW PL4 JBBFEII 2 9138471
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Renault Master II Trafic II 2.5 dCi Engine Starter Motor Elstock 8200634602
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VW Seat Skoda Polo MK5 Diesel Engine Alternator Generator 140A 14V 03P903023D
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Mini Cooper R56 N12 W16 Alternator Generator Napa 7575650
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Iveco Daily MK3 Starter Motor Engine Diesel Bosch 504086888
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BMW E60 LCI E90 325d 525d M57N2 ECU Kit Basic Control Unit DDE 8506951 CAS3 Key
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Earth Ground Cable Mercedes Vito W447 Positive Battery Lead Wiring A4475401755
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BMW F33 F83 M4 Convertible Neck Warmer Control Unit Heater Module ECU 7427905
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Mercedes W906 313 CDI OM651.955 129HP Engine ECU Kit A6519002600 Key Lock Manual
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BMW Mini Cooper S R52 R53 Auxiliary Wiring Harness Servo Pump 7530357
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Mercedes W177 Fuse Box Power Distribution Junction Relay Unit A1779061002
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Telematics Module BMW F10 F20 F30 Bluetooth Communications Control 2447522
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Volkswagen LT 35 Door Module Central Locking System Module Unit 2D0959800
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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 .