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 W639 3.0CDI OM642.990 Engine Control Unit ECU A6421501500 Automatic
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Mini R56 R57 LCI One N16 1.6 98HP Petrol Engine ECU Kit DME 7607685 CAS3 + Key
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VW Volkswagen Golf Mk7 Wiring Loom PDC Rear Harness Parking Sensor 5G0971104L
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BMW E60 E90 E91 N52 325i 525i 218HP Engine Control Unit ECU DME 7553166 Manual
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Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655N
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TV Function Module BMW E65 E66 E67 Video Control Unit Tuner 6933866
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Renault Clio Megane Scenic Diesel Engine Starter Motor 233003329R
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VW Polo 9N Seat Body Control Comfort Unit Module BCM Convenience Unit 6Q1937049B
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Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Kit 03L906022JM
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Head Unit BMW E90 E91 Radio CD Player Navigation Sat Nav DAB Unit 9273187
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BMW F10 F11 F20 F21 F30 F31 F32 Navigation DAB Head Unit High 9289614 9290361
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Door Module BMW E39 Passenger Door Control Module Hella 8378766 6904242
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9383178
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Air Module Mercedes W907 W910 Control Unit ECU A2139008828
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Mercedes W203 C209 Battery Starter Alternator Wiring Harness Cable A2035403533
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Mercedes W164 ML320 4-Matic OM642.940 Diesel Engine Unit ECU Kit A6421509478 Key
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BMW E60 E60N E61N LCI M-Audio System Controller CD Player Navi 9186213
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Ford Focus Mk3 Radio Head Unit CD Player Stereo Audio Unit BM5T-18C815-XN
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BMW E87 E90 E91 120i 320i N46 150HP ECU KIT DME 7561834 CAS2 + Key Automatic
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Audi S8 D3 Valve Block Air Suspension Control Unit Module 4F0616013
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Mercedes W213 Alternator Generator 200A 14V A0009063003
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BMW E60 Light Control Unit Module LM E6X MAN.LWR Lear 9112631
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549B
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Audi Q7 4L 3.0 TDI CASA Automatic Gearbox Control Module Unit ECU 09D927750KC
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Mercedes Sprinter W906 Diesel Starter Motor Engine Valeo A0061517401
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Audi A6 C7 Saloon CCM Comfort Control Module Onboard Unit ECU 4H0907064BN
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2319007707
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Audi Q2 GA Gateway Diagnostics Interface Control Module 3Q0907530AC
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BMW X5 E53 Base B Positive Battery Terminal Cable Cover Compartment
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Mercedes Vito W639 Diesel OM646.980 Engine Control Unit Module ECU A6461502634
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Mercedes Sprinter W910 Cable Wiring Loom Harnesses A9100005999
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BMW X1 F40 F48 Mini F54 F60 USB Bush Dual Double Socket Plug 8711938
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BMW F20 F21 F30 LCI Headlight Control Unit Module FLE2 7492026
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BMW F45 Mini F55 F56 Head Unit Basic Media DAB Headunit 9381320
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Audi A4 B9 2.0 TFSI DEMA BCM Body Control Module Unit ECU 8W0907064EB
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Fuse Box Mercedes W204 S204 W212 SAM Control Unit Module Relay A2129006724
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BMW F30 Fuel Pump Module Fuel Pump Control Unit ECU 8699235
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BMW X5 E53 Receiver Heating Remote Control 6944104 70545B
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Body Control Module BMW F20 F21 F30 F31 F32 Comfort Unit FEM ECU LR01 9315682
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Audi A3 RS3 8Y Keyless Go Module ECU Entry Control Unit 5WA959436J
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Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635400534
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Mercedes Sprinter W907 Battery Power Distributor Current Limiter A9079060100
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BMW F20 Head Unit Navigation GPS Sat Nav Infotainment DAB High F10 F30 9274570
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Mercedes X218 CLS350 Airmatic Suspension Self Leveling Module A2189008903
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Land Rover Discovery 4 L319 Bluetooth Control Module AH42-10F845-AA
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BMW F20 F21 F22 F30 F31 LCI Head Unit Media DAB Navigation Professional 8721882
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Audi A7 4G8 Body Comfort Control Module Unit BCM V2 4H0907064GB
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BMW E87 LCI E90 118i 318i Petrol ECU Engine Control Kit N43 DME 7579142 CAS3 Key
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Audi TT FV Dashboard Sat Nav Drive Unit MMI Multimedia Infortaiment 8S0035072A
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BMW G30 G31 Fuse Distribution Box Holder Control Unit Bracket Carrier 9330542
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Key Reading Module BMW E60 E61 E81 E87 E90 E91 CAS 3 ECU Control Unit 9287535
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Audi A4 B7 Convertible Rear Speaker Amplifier Blaupunkt Right O/S 8H0035223E
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BMW Z4 E85 E46 Hall Effect Switch Cable Microswitch 8236846
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Mercedes W176 Center Console Wiring Loom Electrical Harness A1765405905
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Part no. 9229878-2
BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9229878
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Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800
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BMW 5 6 Series E60 LCI E63 CHAMP Business System Controller CD Player 9149242
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Mercedes W204 Display Screen Information Navigation Dashboard A2049007408
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Negative Battery Cable Audi A1 8X Volkswagen Polo Mk5 6R Cable 6R0971228S
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Part no. 9288002
BMW F10 PDC Rear View Backup Camera Control Module Unit ECU 9288002
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Part no. 03G903016G-1
Audi A4 B8 2.0 TDI Alternator Generator 03G903016G
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BMW F22 F32 F36 Body Control Comfort Module Unit 8707676
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BMW 5 Series E60 LCI Light Module Control Unit ECU Lear LM II E6X LWR 9192641
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Part no. 06D911023
Audi A4 7B 2.0 TFSi D6G519 Engine Starter Motor 06D911023
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Part no. 8519663-2
Mini Cooper R56 LCI R60 N47N 122HP Diesel Engine ECU Kit DDE 8519663 CAS 3 Key
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Mercedes S212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129001606
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Dashboard Monitor BMW X5 E70 X6 E71 Onboard Display Screen 8,8" Unit 9232896
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BMW X1 E84 20dX Diesel N47N 184HP Engine ECU Kit DDE 8519009 CAS3 Key Automatic
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VW Volkswagen Caddy Maxi Fuse Box Control Unit Power Distribution 1KO937125D
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Audio Amplifier BMW F20 F21 LCI Mini F55 F56 Top Hifi Harman Kardon Unit 9390018
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Seat Leon Mk3 5F Door Module Control Unit Front Driver's Side Door 5Q4959593B
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Mercedes W203 Kompressor M271 Positive Battery Cable A2035400330
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Central Information Display BMW F20 F21 F22 F23 Screen 6,5" 9322122
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VW Volkswagen Audi Seat Skoda Glow Plug Relay Unit Black 505 7 Pins 6R0919433
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Rain Sensor Mercedes SLK R172 W204 Front Windscreen Control Unit A2049017901
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Wiring Loom BMW F01 F07 F10 F11 Cable Seat Driver's Side Set 9219987
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BMW F10 F11 Active Pedestrian Protection PTS Front Bumper Sensor Unit 9241032
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BMW E92 LCI Body Control Module ECU Junction Box L1 PL2RR JBBFE IIIR 9229872
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Mini R55 R56 R57 LCI N12 N14 N16 N18 Engine Alternator Generator Petrol 120A
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Alternator Generator Mini Cooper R55 R56 R57 R57 R58 LCI Petrol 7574365
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Mercedes W203 Gearbox Transmission Control A0325451232
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Volkswagen Touran Engine Starter Motor 02M911023N
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Mercedes S212 E250CDI BE OM651.924 204HP Engine Unit Module ECU Kit A6519005301
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BMW E81 E82 E84 E87 E89 E90 E91 E92 Radio Business CD 9210508
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Fuse Box Mercedes GLE W166 C292 W463 Relay Control Unit Module A1669068201
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BMW E87 E90 E91 E92 Front Seat Module Control Unit ECU 6926358
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Mercedes W205 W213 C253 Battery Cable Negative Lead Wiring Harness A0009058912
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Volkswagen Transporter T5 Body Control Comfort Unit Module BCM 7H0959433B
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BMW E82 E90 135i 335i N54 Engine Gearbox Wiring Loom Harness Cables 7566525
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BMW F10 F30 F32 LCI 335dX 435dX 535dX N57Z 313HP Control Unit ECU DME 8586536
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Nissan Qashqai 1.5 dCi Diesel Engine Wiring Loom Harness 24011BB04A
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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 .