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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Light Module Mini R57 LCI Cooper ECU Footwell FRM3R PL3 High EKS Lear 3457586
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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215403250
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Ford B-Max Front Door Module Control Unit Driver's Side CV1T-14B531-AC
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BMW E65 E66 6-Fold CD Disc Changer Player Unit Without Magazine 6974852
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Ford Ranger Mk3 A/C Climate Control Sun Light Sensor Unit EB3T-14A597-BA
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Land Rover Freelander 2 L359 Wire Wiring Harness Parking System DH5215K867BC
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Range Rover Evoque L538 Centre Console Wiring Loom Harness Cable BJ32-14K042-BB
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Alternator Generator Mercedes W211 CLS C219 OM642 Diesel 14V 180A A0131547002
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VW Volkswagen Audi Seat Skoda Glow Plug Relay Unit Black 511 9 Pins 04L907282B
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Mini Cooper R56 N12 W16 Alternator Generator Napa 7575650
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Battery Cable BMW F12 F13 Underfloor Positive Plus Lead Wiring Harness 9151341
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Audi A4 B7 1.8 T BFB Petrol Engine Alternator Generator 06D903016AB
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BMW F30 On-Board Screen 8,8" Android Infotainment System F30_NBT
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BMW F10 F20 F30 Steering Wheel Module Electronics Control Unit 9209427
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Head Unit Mercedes GLA X156 Radio Media Player Navigation Switch A2469000816
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Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489
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Mercedes E-Class W211 S211 Rear Right Door Window Lifter Motor Regulator
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Audi A3 Q3 Volkswagen Golf 1.5 TSI Alternator Negative Cable Ground 5WA971244C
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Mini Countryman R60 Light Module Footwell Module PL3 FRM3R Lear ECU 3457526
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Part no. A4475408347
Mercedes Vito W447 OM622 Engine Starter Wiring Harness A4475408347
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Ford Ranger MK3 Parking Distance Aid Sensor Wiring Harness Loom EB3T-15K867-CD
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Starter Motor Volvo S40 V70 XC90 Diesel Engine Actuator Motor 31327066
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Fuse Box Unit Mercedes CL S C215 W220 1 Front Right O/S ECU A2205401124
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Telematics Module BMW F10 F20 F30 Bluetooth Communications Control 2447522
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VW Volkswagen Polo 5 1.2 TDI Engine Wiring Harness Loom Cable 03P971612
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Mini Cooper D F55 F56 B37 1.5 116HP Engine ECU Kit DME BDC + Key 8470176 Manual
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Mercedes-Benz CLK E C208 W210 Holder Bracket Engine Control Unit A2025458140
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BMW F20 F21 LCI F36 F87 M2 N55 Cable Alternator Starter Base B Wiring 8621486
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BMW E46 318i M43 118HP Engine Unit ECU Kit DME 1430940 EWS3 Key Manual
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Audi A4 B8 Avant 2.0 TDI Quattro Alternator Generator 03L903017
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BMW 3 X5 Series E46 E53 3.0d Diesel M57 Alternator Generator 150A 2248296
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BMW G11 G30 Fuse Box Power Distribution Electrical Control Unit Box Rear 9393144
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Mercedes C118 C253 Rear Bumper Switch Sensor Module A2139058101
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BMW SEBANG AGM 12V Accumulator Battery 80Ah 800A 9381775 7555718
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Starter Mercedes W204 W212 Diesel OM642 Starter Motor 1005831549
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Mercedes W176 M270 Petrol Engine Wiring Harness Loom Cable A2701504400
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Ford Transit Custom Bluetooth Control Unit Module Controller ECU NB5T-14G087-HB
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VW Seat Skoda Polo MK5 Diesel Engine Alternator Generator 140A 14V 03P903023D
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BMW F10 F11 F30 F32 F33 Side Surround View Camera Control Unit Module 9240988
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BMW 5 Series E60 E61 Centre Console Switch Centre DTC PDC 6952477
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Mercedes W251 Rear Passengers Entertainment Control Unit A2518703390
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Audi A5 F5 Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8W6971104A
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Mercedes W168 A140 ESP + HBA Electronic Stability Control Module A1685453532
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Mercedes C118 C205 C253 Automatic Gearbox Control Unit Module ECU A0009008324
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Mercedes W639 W906 W907 OM642 Diesel Engine Alternator Generator A0009062700
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BMW E87 E90 E91 Radiator Fan Cable Harness Loom Wiring 6937515
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Land Rover Discovery 4 L319 Wiring Harness Loom Passenger Seat 3M5T-14N003-SB
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Ford Transit Mk8 Fuse Relay Box Control Unit Module 2.0 Diesel JK2T-14401-FMC
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Mercedes-Benz Vaneo W414 Cable Starter Line Positive Line Battery A4145400130
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Range Rover L322 Anti Theft Sounder Alarm Link Wiring Cable AH42-971111-DB
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CD Player BMW E60 E61 E63 M-ASK M-Audio Radio System Controller 6965046
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Part no. 1387614
BMW 3 Z3 Series E36 Electrical Fuse Relay Box Storage Trim 1387614
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BMW E60 E61 LCI 550i N62N 367HP Engine Unit Module ECU DME 7577664 Manual
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Mercedes-Benz W221 Distronic Intelligent Cruise Control Radar Unit A2129004603
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Audi TT 8J Coupe Roadster Ultrasonic Sound Control Module ECU Unit 8J0035223E
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Battery Starter Wiring Mercedes W168 Harness Cable Positive A1685400230
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Mercedes W140 Head Unit Radio Player Control Module Becker A0038208286
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BMW E60 E61 E63 E64 E65 E66 Dynamic Drive Control Unit Module 6773532
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Land Rover Discovery Sport L550 Tail Light Wiring Rear Right O/S FK72-13404-AG
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Mercedes C209 220 CDI M646.966 150HP Engine Unit ECU A6461506479 Automatic
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Land Rover Discovery 3 L319 Air Module Sensor Control Unit 8H22-14D374-AD
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Land Rover Freelander TD4 Starter Motor Engine Actuator Diesel NAD101500
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BMW E88 Cabrio Footwell Light Module Control Unit ECU PL2 FRM3R 9251488
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Ford Transit MK7 2.2 TDCi Diesel Engine Wiring Loom Harness Cables 8C1T12B637KE
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BMW X5 E53 Fuse Box Label Trim Cover Panel Sticker 6920035
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Range Rover Evoque L538 Door Module Unit ECU Front Left N/S BJ32-14D617-AB
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Land Rover Discovery Sport L550 Battery Cable Positive Terminal GK72-14A280-EB
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BMW F20 F30 F36 Rear Electronic Module REM Fuse Box Control Unit V2 ECU 6809050
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Mercedes W245 Front Bumper PDC Parking Distance Sensor Comet Grey - 748
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Wiring Mercedes W176 W242 W246 C117 Petrol M270 Engine Harness Loom A2701501533
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BMW F20 F21 F30 LCI Headlight Control Unit Module FLE2 7492026
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BMW F20 F21 F22 F30 F31 N20 N26 N55 Petrol Engine Starter Motor 7638194
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BMW E46 Led Indicator Side Light Signal 7165845
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PDC Module BMW G01 G02 G20 G21 Park Assistance Control Unit 5A130F8
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Mercedes W140 Parking Control Unit Module Sensor A0205457832
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Volkswagen VW Golf Mk7 Audi A1 8X Alternator Generator 14V 110A 04E903015
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BMW E65 Door Cable Guide Rear Left N/S Wiring Loom Bracket Trim Cover 6907329
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Mercedes W176 180 CDI OM607 Engine Control Unit Module ECU 237101754R Automatic
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Ford Ranger Wildtrak Mk6 Positive Battery Terminal Cover Cap Red GB3T-14A094-A
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BMW F20 F21 F30 F31 LCI Front Seat Wiring Harness Cable Driver Side 9339279
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Mercedes W205 W213 Fuse Box Protective Bracket Cover A0005456786
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Smart Fortwo C450 Engine Starter Motor Actuator A0051512601 0003188V008
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Part no. 3455305-2
3 x Mini R57 R58 R59 DWA Door Alarm System Module Control Unit Set 3455305
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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 .