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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Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064CQ
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BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9352865 Manual
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Ford Transit MK7 2.4 TDCI T24DD0P Diesel Engine Control Unit ECU AC1112A650BC
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BMW Z4 E85 Roadster Cabrio Convertible Roof Folding Top Module Unit 6925897
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Audi A3 8P Fusebox Body Control Comfort Module BCM Unit ECU 8P0907279F
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Mercedes W213 OM654.920 Automatic Transmission Control Unit Module A2139002501
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BMW X5 Series E53 Rear Bumper PDC Cables Set Wiring Loom Harness 6906347
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BMW E82 ECU Body Control Module Junction Box L1 PL2 JBBFE II 9187533
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Seat Leon Cupra 5F Suspension Control Unit Module ECU 5Q0907376B
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9166667
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Audi A1 8X Rear Door Module Left N/S Control Unit ECU 8X0959795D
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BMW 5 6 Series E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9157155
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BMW 7 Series E65 Cable Harness Door Rear Right O/S Wiring Loom 6913164
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Mercedes W204 Display Screen Multimedia Navigation Dashboard Unit A1729008600
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BMW E81 E87 LCI E90 E91 Petrol N43 Alternator Generator 170A Denso 7550468
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Mercedes-Benz C-Class W203 Fuse Box Control Unit Module SAM A2035452901
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BMW E46 E85 M54 Petrol Alternator Generator Bosch 120A 7519618
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Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman 8E5035223
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BMW E90 Light Control Footwell Module ECU MAX Brose FRM3R PL2 Lear 9390491
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Land Rover Freelander 2 Yaw Rate Sensor 6G9N-14B296-AB
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Radio Head BMW F20 F21 F22 F30 F31 Unit Basic Media Navigation Headunit 9399427
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9314237
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Mercedes CLA C117 W166 Head Unit Sat Nav Navigation Display Screen A1669001420
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Audi Q7 4L Air Suspension Level Height Adjustment Compressor Pump 4L0698007A
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BMW F10 F11 F12 X3 F25 Electric Parking Brake Control Unit EMF Module 6862808
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PDC Display Mercedes W639 Front Parking Sensor Screen Control Unit A0015422623
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Mercedes ML W163 Transfer Box Control Unit Module ECU A1635457932
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BMW E87 LCI Footwell Light Module Control Unit PL2 FRM3R 9224592
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BMW 5 6 E61 Touring E63 Coupe Panoramic Sliding Sunroof CAN Bus Control Unit
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BMW E81 E87 E90 E91 E92 Radio CD Professional 9110678
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Fuse Box Mercedes W203 W209 Front Relay Control Unit Module SAM A2095451101
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Mercedes ML W163 Engine Starter Motor A0051512901
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Rain Sensor Mercedes W204 W212 Windscreen Control Unit A2049014504
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Genuine BMW Mini Cooper One 1 R55 R56 Radio Boost CD Player Head Unit 3450803
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Land Rover Freelander 2 Navigation Nav Reader DVD CD Control Unit 6G9210E887EE
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BMW E81 E87 LCI E90 E91 118i 318i N43 143HP Engine ECU DME 7580279 Automatic
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BMW E81 E87 LCI E90 E91 Petrol N43 Engine Control Unit ECU DME 7595179 Manual
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Starter Motor Ford Galaxy Mondeo S-Max TDCi Diesel Engine Starter 6G9N-11000-FA
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BMW X3 X5 X6 E60 E61 LCI E70 E71 F01 F02 F25 Rain Light Solar Sensor
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BMW Mini Cooper S R56 Automatic Gearbox ECU Control Unit EGS Module 7579136
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Mini Cooper One D W16 R55 R56 Engine Wiring Loom Harness 7808630 7795052
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BMW E90 Light Module Xenon Footwell Control Unit Module ECU PL2 FRM II 9153779
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BMW 1 3 Series E81 E87 E91 Switch Cluster Cruise Control Stalk Unit 9110890
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Audi A4 B8 Parking Brake Control Module Unit ECU 8K0907801K
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Bluetooth Module Mercedes W247 W447 Multimedia Control Unit ECU A2479009412
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BMW Mini Countryman R60 Footwell Light Module High EKS ECU LEAR PL3 FRM 3457403
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Mercedes-Benz Sprinter W906 Battery Tray Housing Box Case A9066200131
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Mercedes C205 Fuse Box Relay Control Unit Module A0035421819
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Mercedes-Benz W169 W245 Door Module Front Left N/S Control Unit A1698208326
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Mini One R50 W10 90HP Engine Control Unit ECU DME 7545789 Manual Transmission
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BMW X1 E84 Parking Control Module Unit PDC ECU 9252637
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BMW E36 E46 Engine Bay Battery Cable Guide 1436340
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BMW E81 E87 E90 E91 LCI Professional CD Radio Bluetooth 9263468
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BMW F80 M3 F82 F83 M4 S55 431HP Engine Unit Module ECU DME 8642252 Drivelogic
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VW Volkswagen Golf 6 1.6 TDI Diesel Engine Starter Motor 022911024A
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BMW F20 120d F30 320d F36 420d LCI B47 190HP Engine ECU DDE 8473185 Manual
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BMW E87 LCI E90 120i 320i Petrol N43 170HP ECU Kit DME 7579142 CAS3 Key Manual
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Audi A4 B8 2.0 TDI Alternator Generator 03G903016EX
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BMW E90 Body Control Module BCM ECU Junction Box Footwell 6135 9176880
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Audi A4 B7 A6 C6 Motor Starter Unit 2.0 TDI Diesel Engine 03G911023
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PDC Parking Sensor BMW F01 F10 F11 Front Rear Bumper Imperial Blau Blue A89
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BMW E60N E61N E81 E87N E88 E90 E91 E92 E93 Alternator 7550469
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Mini Cooper R56 LCI N16 1.6 122HP Petrol Engine ECU Kit DME 7638322 + CAS3 + Key
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Mini R50 R52 Starter Motor Engine W10 0,9KW Bosch Actuator 1489994
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Audi A3 8P Steering Angle Steering Wheel Column Control Module ECU 8P0953549K
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BMW E81 E87 LCI E90 E91 N47 DDE 7807529 Engine Control Unit Diesel ECU Manual
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BMW E39 6-disc CD Changer without Magazine 6908948
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Display Screen Mercedes W176 W246 Radio Navigation Sat Nav Head Unit A2469013702
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BMW Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6943157
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Navigation Headunit BMW F20 F21 F30 F31 Mini F56 Head Unit Basic Media 9139895
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BMW E60 Light Control Unit Module LEAR LM E6X LWR 6943283
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Mercedes ML W164 Rear SAM Module Control Unit Fuse Box A1645400701
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BMW X1 E84 Reversing Rear View Camera Control Unit Module 16129510
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Air Module Sensor Mini R57 Cabrio Convertible Crash Control Unit ECU 9807168
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BMW 3 5 E60 E61 E90 LCI 1 Display Screen 8.8" Monitor Sat Nav 9193745
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BMW E46 E89 Mini R50 R52 Parking Control Module Unit PDC 9119428
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Mercedes W169 W245 Petrol Engine Starter Motor M266 A0061510301
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MINI Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS3 + Key Automatic
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Mercedes W204 W207 Centre Console Connector AUX USB Port Socket Trim A2078210411
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Mercedes W203 W209 W221 Windscreen Rain Sensor Control Module A2218702826
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Volkswagen VW Golf Mk7 Front Radar Distance Control Unit Module 3QF907561A
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BMW E81 E87 E88 E89 E90 E91 E92 E93 Radio Business CD 6962296
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BMW X3 Series E83 LCI Diesel Battery Positive Lead Red Cable Plus Pole 3452235
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BMW X5 X6 E70 E71 Power Distribution Fuse Box Battery 9178959
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Mini Cooper R55 R56 Harman Becker Hi-Fi Audio Speaker System Amplifier 3450756
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BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8517862 + Key + FEM
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Genuine VW Audi Seat Skoda Diesel Glow Plug Relay Unit Black 038907281D
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Alarm Power Siren Horn BMW E36 E38 E39 E46 E53 E83 Alarm System Unit 8383152
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BMW E90 NSW PL2 FRMII Light Control Module (LCM) 61359159811 9159811
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Mercedes W205 GLC X253 Front Radar Sensor Module Control Unit A0009007907
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Display Mercedes C205 Dashboard Central Multimedia Car System Screen A2059002211
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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 .