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 F25 F26 F15 F16 Audio Amplifier Harman Kardon Surround Sound System 9393182
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Mercedes-Benz W169 W245 Start Stop Starter Alternator Module ECU A2669001000
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Mercedes-Benz C-Class W203 W204 W211 Diesel Engine Starter Motor A0061512501
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BMW 7 Series E65 E66 Seat Occupancy Sensor Mat Electronic Control Unit 6917134
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Mercedes SLK R172 Roadster Folding Vario Roof Control Module A1729008412
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Mercedes Vito W639 OM646.982 109HP Engine Module ECU Unit A6461503278 Manual
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Mini Cooper R55 R56 R57 2 Radio Boost CD Audio Player Head Unit 3455539
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BMW E70 3.0d M57N2 235HP Engine ECU KIT DDE 7810950 CAS3 Key Automatic
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Mercedes Sprinter W907 W910 Front SAM Body Control Module Unit ECU A9079000806
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Mercedes-Benz A E M Class W163 W168 W210 CD Player Audio 10 Stereo Radio Unit
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Mini Cooper R56 LCI R60 N16 1.6 Petrol Engine ECU Kit DME 7615981 + CAS 3 + Key
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Audi A3 8V 1.6 TDI CRKB 110HP Engine ECU Kit Ignition + Key 04L907309E Manual
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Door Control Module Audi S4 A4 B8 A5 8T Front Right O/S Passenger 8K0959792H
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045453901
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Mini Cabrio R57 PL3 SPEG H4 Fuse Control Unit Module Distribution Box 3455241
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BMW 1 Series E81 Footwell ECU Light Control Module LOW PL2 FRM II Lear 9197162
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BMW E70 E71 F01 F02 F10 F11 F30 F31 Diesel Starter Motor NAPA 8581098
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Peugeot 307 Body Control Comfort Unit Module BSI Fuse Box 9651197480
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Volkswagen Golf CD1 Antenna Amplifier Transmitter Receiver Module ECU 5WA035741B
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Skoda Octavia II 2.0 TDI BKD Diesel Starter Motor 02E911023L
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Comfort Module Audi A6 S6 RS6 C6 4F Convienience Unit ECU 4F0910289N
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Steering Wheel Module BMW X3 G01 X5 G05 G20 G30 Heating Control Unit 7857778
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Vauxhall Combo D 1.3 Cdti A13FD Engine Wiring Harness Loom 00552479600
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Door Module Mercedes Vito W447 Rear Right O/S Door Control Unit A4479000101
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Audi A4 B7 Body Comfort Control Module BCM Unit ECU 8H0959433M
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Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A 7533270
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Mercedes W209 Convertible Air Module SRS Control Unit ECU A2098200085
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Volkswagen Sharan 7N Air Module ECU Sensor Control Unit 7N0959655C
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Vauxhall Opel Astra G Engine Control Unit ECU Module Petrol Automatic 09391340
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BMW E90 320si 173HP N45 Petrol Engine ECU Kit DME 7560955 + CAS2 + 2 Keys Manual
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BMW E81 E87 LCI E90 E91 120d 320d N47 ECU KIT DDE 8506438 CAS 3 Key Automatic
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Engine Wiring BMW F10 F11 520d N47N Loom Cable Harness Injector Module 8513814
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BMW X1 E84 ECU Footwell Light Module BASIS PL2 FRM3R Lear 9230451
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Mercedes W169 A150 M266.920 95HP Engine Control Unit ECU A2661531491 Automatic
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BMW E90 E91 E92 Radio Fan Adapter Cooling Control Unit Module F40HQ012GKB
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Audi RS3 8V Potential Power Distribution Junction Box Jump Point 1K0937517
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Navigation Module BMW F10 F20 F22 F30 F32 Sat Nav DAB Head Unit High 9318750
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BMW 3 6 Series E46 E64 Headlight Control Level Sensor Bracket 8268997
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Mercedes W202 Central Locking Vacuum Pump Control Unit A2028001448
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BMW F20 F21 LCI Wiring Loom Harness Rear Trunk Lid Right O/S 9251725
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BMW 5 X5 Series E39 E53 Radio Business CD Player 6908783
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BMW F10 F12 F13 M5 M6 S63N 560HP ECU Control Unit Module DDE 7633959 Twin-Clutch
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Starter Motor Audi Q3 8U Volkswagen Passat B7 Engine Starter Actuator 02E911024C
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Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800
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BMW F20 F21 F30 F32 LCI Headlight Ballast Control Unit Module FLE2 LOW 8494840
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Peugeot 207 Airbag Module ECU Control Unit Sensor Air Bag 9663593380
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Audi A5 8T 3.0 TDI CCWA 240HP Engine ECU Kit 8K0907401 Ignition + Key Automatic
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Mini Cooper D F55 F56 B37 Diesel Engine ECU Kit DDE 8586766 BDC LR01 Key Manual
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MULF2 Module BMW E60 E87 E90 E91 Hands-Free Electronics Charging Unit 9226711
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Mercedes V251 Gateway Module Control Unit ECU A1645407901
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BMW Z4 E85 M54 Roadster Wiring Loom Harness Engine Ignition Module
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BMW 7 Series E65 E66 Front Bumper PDC Loom Cables Wiring Set 6945505
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Mercedes Vito W639 OM646.980 111 CDI 116HP Engine ECU Module A6461500400 Manual
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BMW Z4 E89 23i N52N 204HP sDrive Engine ECU Kit CAS3 + Key 7624048 Manual
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Audi A3 8P 2.0 TDI 170HP BMN Engine ECU Kit Key + Ignition 03G906018DN Manual
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Mini R56 LCI One 55KW N16 75HP Petrol Engine ECU Kit DME 7607685 CAS3 + Keys
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Mercedes Vito W447 Fuse Relay Box Module A4475405931
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Mercedes ML W163 Window Windscreen Rain Light Sensor Module A1638200726
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BMW Z4 E85 E86 Basic Body Control Unit Module GM5 Star12 LOW 9116445
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Mercedes W176 A200 CDI OM651 136HP Engine Module ECU Unit A6519007003 Automatic
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BMW 3 4 Series F30 F31 F32 Rear Bumper PDC Cables Wiring Loom Set 9315897
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Part no. 8U0857273B
Audi Q3 8U Display Screen Multimedia Navigation Sat 8U0857273B
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Part no. 6967658
BMW E65 E66 Airbag ECU Control Unit Gateway Module 6967658
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BMW 3 Series E90 E91 E92 E93 Engine Starter Motor 0 986 021 230
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Mercedes Sprinter W906 OM651 Battery Wiring Harness Loom Cable A9065403815
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BMW E87 Light Module Control ECU Unit LCM Footwell Module PL2 FRMFA 6977723
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BMW X3 E83 Wiring Harness Engine Loom Wire Gearbox Module 3412244
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Part no. 9240524
BMW E88 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9240524
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Mercedes GLE 250 AM Tailgate Trunk Control Module Unit A1669008512
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Audi A4 B9 Wireless Charger Centre Console Phone Charging Module 8W0035502B
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Part no. 6987999
BMW 3 Series E91 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6987999
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Mercedes-Benz C W203 C200 Kompressor M271 Engine Control Unit ECU A2711530691
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Audi A4 B8 A5 8T Parking Distance Control Module Unit ECU 8K0919475H
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Mercedes W212 Air Suspension Control Unit Module ECU A2125406462
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PDC Module BMW F45 F46 I01 Mini F55 F56 Parking Assistant Control Unit 6881300
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BMW 3 5 7 X5 Series E38 E39 E46 E53 Rain Light Sensor Windscreen Wiper 6904012
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Footwell Module BMW E88 Light ECU PL2 FRM3R Lear 9263795
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BMW F12 Aerial Amplifier AMP Antenna Supression Filter Module 9227217
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Engine Wiring Mini R55 R56 N12 Loom Harness Injection Valve Ignition 7585946
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Mini Cooper S R55 R56 R57 LCI N18 1.6 184HP ECU Control Unit DME 7613226 Manual
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BMW 1 Series E87 LCI CCC CD Professional Navigation System Controller 9159034
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Mercedes W204 Navigation Radio CD Player Head Unit A2049007202
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BMW F32 F36 F80 F82 M4 LCI Headlight Indicator Light LED Module Left N/S 7493231
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Mercedes W164 Fuse Box Holder A1645402972
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Mercedes W906 SAM Module Fuse Box Relay Control Unit Regulator A0009822223
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Mercedes R171 SLK350 Kompressor M272.963 Engine Control Unit ECU A2721533279
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BMW E88 Body Control Comfort Unit Module BCM Unit ECU 9305738
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VW Volkswagen Polo 9N 1.4 TDI Alternator Bracket Mount Carrier 045903143E
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MINI R50 One 1.6 W10 90HP Engine ECU Kit DME + EWS + Key 7527610 Automatic
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BMW Z4 E89 sDrive 20i N20 184HP Petrol Engine ECU Kit CAS3 + Key 7645762 Manual
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Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500433
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Audi TT 8S Module BCM Body Control Unit Module ECU 5Q0937084BR
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Part no. 7537281
BMW Z4 Series E85 M54 Wiring Loom Harness Engine Ignition Module 7537281
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Part no. 8362444
BMW E39 Audio Amplifier Radio Sound System Hifi AMP Control Module 8362444
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BMW 3 Z3 Series E36 Airbag Control Unit Module Sensor ECU 8374798
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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 .