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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Part no. 04E903023K
Audi Seat Skoda Volkswagen 1.4 TSI Petrol Alternator Generator Valeo 04E903023K
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Mercedes SLK R171 Fuse Box Rear SAM Relay Control Unit Module A1715451901
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BMW X5 E53 Automatic Gearbox Basic Control Unit Module EGS 7544721
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Mercedes W204 W211 W212 S212 Engine Starter Motor A2719060200
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BMW E91 Touring HiFi Amplifier Speaker System Control Unit Module 9143161
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Volkswagen Passat B7 Central Gateway Control Unit Module Relay ECU 7N0907530AN
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Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760C
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Mercedes A-Class W168 Door Cable Harness Wiring Front Passenger A1685405008
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Audi A5 8T A4 B8 8K 2.0 TFSI CDNC 211HP Engine ECU Kit 8K2907115P Key + Ignition
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Renault Trafic 3 R9M 450 1.6 DCI Diesel Engine Unit ECU 237103984R Manual
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BMW X1 E84 Display Screen Dashboard Navigation Monitor On-Board CID 6,5" 9289583
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Mini Cooper S R56 LCI N18 1.6 184HP ECU Kit DME + CAS3 + Key 7648190 Manual
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Pedestrian Protection Sensor BMW F10 F11 Front Bumper Crash Impact Unit 9261962
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Audi TT 8J Front Left N/S Door Wiring Harness Cable Lom 8J0971030AE 8J0971030AB
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BMW E60 E87 E90 LCI 120d 320d 520d N47 Engine ECU Kit DDE 7807530 CAS 3 + 2 Keys
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Mercedes C238 E53 AMG 4-Matic M256.930 435HP Engine ECU A2569001200 Automatic
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Mercedes W221 Rear Armrest DVD Player Control Headunit A1669062300
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BMW F83 Camera Kafas Front Windscreen Camera 9281714
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BMW i3 I01 Holder Audio Amplifier Telephone Bracket Mount Trim 9251524
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BMW E90 Light Control Footwell Module ECU MAX Brose FRM3R PL2 Lear 9390491
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Peugeot 307 1.6 HDI Diesel Engine Wiring Cable Loom Harness 9658277780
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BMW Mini Countryman R60 Footwell Light Module High EKS ECU PL3 FRM3R 3457528
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BMW X3 E83 Z4 E85 E86 Radio Business CD Player Multimedia Unit 9197127
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Mercedes E CLS Class W211 W219 Bracket Anti Tow Away Sensor Bracket A2118220114
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ECU Mercedes C205 C250d Diesel OM651.921 204HP Engine Control Unit Automatic
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Mercedes W164 ML280 CDI OM642.940 Engine Control Unit ECU Kit A6421506691 Key
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Mini F54 F55 F56 F57 F60 Petrol Engine Starter Motor 7649090
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Wiring Loom Cable BMW E46 X5 E53 X3 E83 Seat Occupancy Sensor 8240500
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Bluetooth Module BMW E81 E87 E90 E91 Hands-free Control Unit MULF2 9149656
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Audi A4 B9 Front Door Module Control Unit ECU Passenger Side 8W0959592N
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BMW 1 3 Series E87 E90 M47N2 118d 318d 122HP ECU KIT DDE + CAS2 + Key 7799854
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Mercedes Sprinter W907 W910 Front Door Module Control Unit Left N/S A1679008405
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BMW F20 F30 F31 118d 318d N47N 143HP Engine Unit ECU DDE Kit 8582280 FEM + Key
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Mercedes Sprinter W906 Becker Map Pilot Navigation Module Sat Nav Navi Europe
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Earth Ground Cable BMW G20 G21 G30 G31 G11 Line Strap Battery Lead 6870078
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Alternator BMW M3 E46 Z3M E36 Petrol S54 Generator Valeo 120A 7831436 7830791
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BMW F01 F07 F10 F11 Tyre Pressure RDC Control Unit Module 6857938
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Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402
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BMW E87 E90 Radio Business CD Player Audio Control Unit E81 E91 9200101
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VW Polo 6R 1.4 CGGB 85HP Engine Control Unit ECU Kit 03C906024CN Manual
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Mercedes Vito W639 Automatic Gearbox EGS Control Unit Module ECU A0015455716
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Door Cable BMW E93 Convertible Wiring Loom Front Cables Passenger Side 6926332
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BMW E87 LCI Footwell Light Control Module ECU LOW PL2 FRM II 9159806
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BMW X2 F39 F40 F44 F45 F46 F52 Air Quality AUC Sensor 9872066
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511507386
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BMW X3 F25 Front Seat Control Unit Module ECU Left Right N/O/S 9369123
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BMW F31 F34 328i N20 245HP Engine Control Unit Module ECU DME 8610635 Automatic
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BMW F10 F30 F32 LCI 335dX 435dX 535dX N57Z 313HP Control Unit ECU DME 8586536
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Mini Cooper R58 Footwell Light Module High EKS ECU LEAR PL3 FRM3R 3457428
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Volkswagen Touareg 7L 3.0 TDI Diesel Engine Starter Motor 059911024J
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BMW F20 F21 M135i F30 F31 335i N55 Engine Control Unit ECU 8606776 Automatic
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BMW E60 E61 LCI Front Bumper PDC Loom Cables Wiring Set 6928362
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Gateway Module Mercedes W211 Control Unit ECU A2115408545
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Mini R57 LCI Footwell Light Module Unit High EKS ECU PL3 FRM3R Lear 3456588
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BMW X3 F25 Body Control Module ECU Junction Box JBBFE III V9 Lear 9287218
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BMW E60 E61 E65 E87 E90 Trailer Towing Control Module AHM 4R 9186177
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Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902
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Mercedes Sprinter W910 ECU Bracket Control Unit Module Holder Mount A6511400300
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Mercedes W639 Vito 109 CDI OM646 Engine Unit Module ECU A6461507272 Manual
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Mercedes C216 W221 Distronic Radar Sensor Control Unit Module A2165402545
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Starter Motor Mercedes C118 W177 C247 Petrol OM282 Starter Motor A2829062000
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Mercedes W203 W210 W220 DIesel Glow Plug Relay Module Unit A0285454032
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Mini Cooper D R60 ALL4 112HP 1.6 N47N Engine ECU Kit DDE 8517727 + CAS3 + Key
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Head Unit BMW F20 F30 LCI F36 CD Player DAB Radio Sat Nav Navigation 6825837
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Mercedes-Benz E-Class W210 Positive Plus Cable Wiring Cover Cap A2105451303
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Mercedes Vito W639 Parking Module PDC Distance Control Unit Sensor A6399003300
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Volkswagen Touareg 7L Air Module Control Unit Crash Impact Sensor 7L0959655
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Audi A6 C6 Amplifier Audio Sound Control Unit Module Controller 4F0910223M
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Audi TT FV 2.0 TFSI CHHC HV Battery Power Central Distribution Point 8S0915459A
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BMW E90 Footwell Light Module ECU Control Unit PL2 FRM Lear 9204536
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BMW E65 Passenger Seat Air Module Sensor Control Unit SRS 6960218
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Mercedes ML W163 270 CDI Engine Control ECU Kit Key Automatic A6121536379
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BMW 1 3 SERIES E82 E88 E90 LCi Switch Cluster Cruise control Stalk Unit 6962671
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BMW F45 i8 X2 F39 Mini Cooper F60 Alternator Generator B38 B38X Engine 7649390
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Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200
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Screen Ring Mini F56 F60 Navigation Display Head Unit Trim Cover 9354397
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Mercedes W211 Central Gateway Control Unit Module Relay ECU A2115407545
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BMW 1 X1 Series E81 E84 E87 RR1 Battery Lead Cable Negative IBS 6948335
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Radio Player BMW F20 F21 F30 F31 CD DAB Head Unit Audio Player 9335347
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Ventilation Valve BMW F90 M5 F91 M8 S63M Fuel Tank Pipe Cyl. 5-8 7852338
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Vauxhall Combo D 1.3 Cdti A13FD Engine Wiring Harness Loom 00552479600
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Audi RS3 8Y 2.5 TFSI Quattro 400HP DNWC Engine Unit ECU 07K907309L Automatic
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Mercedes-Benz C Class W203 Automatic Gearbox Transmission Control A0345454332
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Mercedes R172 BlueEFFICIENCY 271.861 184HP Engine ECU Kit A2711500391 Keys Lock
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BMW 1 3 Series E87 LCI E90 E91 E92 Radio CD Professional 9144773
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BMW X5 E70 X6 E71 Alternator Generator 170A 170AMP 14V VALEO BM57N2 7796125
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Mercedes W204 Rear Fuse Box Relay SAM Control Unit Module A2045458201
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BMW 1 3 E87 E90 N45 116i 316i Petrol ECU Kit DME 7557809 + CAS 2 + Keys Manual
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Starter BMW E60 520d M57N2 Diesel Engine Starter Motor 7796892
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BMW E87 E90 E91 118d 318d M47N2 122HP Engine ECU KIT DDE 7798179 CAS2 + Keys
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BMW E87 LCI Light Module BASIS LCM Footwell Module PL2 FRM II 9241002
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Mercedes W212 Valve Block AMG Air Suspension Control Unit Module A2123200558
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BMW E81 E88 E90 N43 118i 318i 143HP Engine Control ECU DME 7621178 Automatic
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Mercedes W212 Front Air Vent Centre Cable Wiring Dashboard Loom A2124404250
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BMW E91 LCI Footwell Light Control Module LCM LED Basis FRM3R PL2 9240530
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Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit Module ECU AC11-12A650-BA
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Mercedes W205 GLC X253 Distronic Radar Sensor Control Unit Module A0009059013
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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 .