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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CD Player BMW E60 E61 LCI E63 E64 Radio Stereo CHAMP Business Head Unit 9187903
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Mercedes W906 313 CDI OM646.985 109HP Engine ECU Unit Module A6461501877 Manual
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Mini Cooper R50 R53 DVD GPS Navigation System Computer 3 Control Unit 6924829
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Fuse Box Mini R58 R59 Distribution Control Unit Module 3457508
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Mercedes W205 C 220d 651.921 170HP ECU Kit A6519005203 SAM Key Lock Automatic
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Mercedes W169 W245 W639 W906 Head Unit Radio Media Player Navigation A1699002500
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Airbag Module BMW E46 X5 E53 Control Unit ECU Side Air Bag 6905491
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Skoda Octavia II Steering Wheel Position Angle Control Unit Module 1K0953549BS
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Audi A6 C6 Power Supply Module Comfort Control Unit ECU 4F0910279K
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Mini Cooper D R55 R56 W16 1.6 109HP ECU Kit DDE 7810909 CAS3 Key Automatic
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Mini F55 F56 F57 Integrated Supply Module Z11 Control Unit Module 7936364
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Iveco Euro Cargo Body Control Module ECU Convenience Control Unit 504096743
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Ford Transit MK7 Radio 6000 CD Player Stereo Head Unit 6C1T18C815AJ
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BMW F10 F20 F30 120d 320d 520d N47N Engine Control Unit DDE 8572419 Automatic
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BMW X5 E70 Audio Amplifier HiFi Stereo Sound System Booster Control Unit 9240136
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Mercedes W221 Boot Lid Remote Open Close Trunk Control Module A2218708287
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BMW X5 E71 Light Module Footwell Control Unit ECU FRM II MAX Lear 9242522
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BMW F30 F31 320i N20 184HP Engine Control Unit ECU DME 7649131 Manual
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Mercedes-Benz C E Class W202 W203 W210 Windscreen Rain Light Sensor A2108205710
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Audi S3 8Y 2.0 TFSI Starter Motor Engine Petrol 02E911022H
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Mini R58 Footwell Light Module Control Unit High EKS PL3 FRM3R Lear 3457527
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Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655H
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Mercedes W205 C 300 264.920 258HP Engine ECU Control Unit A2649001200 Automatic
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Audi A3 8V SAT NAV DAB Stereo Head Unit MMI Multimedia Control Unit 8V0035864A
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BMW F46 Module BCM Body Control Unit Module ECU 8736968
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BMW E60 E61 Radio M-ASK M-Audio System Controller CD Player 6955348
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Mercedes W205 Front Axle Damper Adjustment Left N/S Wiring Harness A2055403706
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BMW 7 Series E65 E66 Dashboard EXCH Control Display Screen 8,8" 6960096 9110639
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Mercedes C117 W176 W246 Control Unit CD Player Radio Audio System A2469001216
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BMW 5 Series 1 E60 Light Control Module Unit Lear LME6X MAN. LWR 6936996
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BMW 1 3 E81 E87 E90 E91 E92 LCI Radio CD Professional Bluetooth 9343204
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Mercedes Navigation CD Road Map Europe APS 2007 A2118279559
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AdBlue Module BMW G20 G21 G30 G31 X3 G01 Control Unit ECU SCR 9423397
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Mercedes W470 Air Module System Control Unit Module ECU A4709000903
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Central Gateway BMW X3 F25 X4 F26 Module Control Unit Lear ZGW-02 4SK 9299594
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Skoda Octavia Mk2 1Z Body Control Module Convenience Unit BCM ECU 1K0937087
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Door Module Mercedes C118 W177 H243 Front Left N/S Door Control A1779005409
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Peugeot 3008 Radio CD Player Stereo Head Unit 9666967477
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Lexus IS200 d 2AD-FHV Diesel Engine Control Unit Module ECU Manual 8966153M50
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BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9290799
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BMW G30 Dashboard Central Information Display 10,25" On Board Monitor 8801702
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Mini One R56 LCI N16 98HP Engine ECU Kit DME 7638322 + CAS3 + Key Automatic
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Audi A4 B6 Headlight Headlamp Range Control Unit Module 4Z7907357
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Audi A6 C7 3.0 TDI Quattro CLAA 204 HP Engine Control ECU 4G0907311E Automatic
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Mercedes W204 Multifunction Display LCD Screen GPS Navi Unit A2048204797
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BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8573257 + Key + FEM
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Wiring Harness Mercedes W203 M271 Kompressor Petrol Engine Camshaft A2711502733
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Ford Transit Connect 1.5 TDCI 101HP Engine Unit ECU Kit KV6A-12A650-YA Manual
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BMW E61 Body Control Module Unit ECU BCM KBM High 6957529
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Audi A3 8P Convertible Folding Roof Module Control Unit ECU 8P7959255
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Mini Cooper S F55 F56 B48 Petrol Engine Control Unit ECU DME 8642707 Manual
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Mercedes W447 W907 W910 Engine Control Unit Module ECU A6549009400
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Mini Cooper S R60 N18 184 HP Engine Control Unit Module DME 8621260 Manual
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BMW E87 LCI E90 120i 320i Petrol N43 Engine ECU KIT DME 7579142 CAS3 Key Manual
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Mercedes Vaneo W414 Front Left Right Door N/O/S Control Unit Module A4148200526
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BMW 1 3 E87 E90 E91 M47N2 Engine Injector Module Wiring Harness Cable 7804722
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BMW F10 F11 520d Diesel N47N 184HP ECU Kit DDE 8577764 Key + CAS4 Automatic
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Mercedes R171 Door Control Module Front Right O/S A1718206226
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BMW 3 E91 ECU Body Control Module Junction Box M PL2RR JBBFE IIIR 9264577
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Audi S3 8V Starter Alternator Wiring Harness 5Q0971230HH
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BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Kit DDE 7811151 CAS3 Key
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BMW X1 F48 Telematics Control Module ECU Unit 5A049E6
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BMW X5 E70 LCI X6 E71 30dX N57 245HP Engine Module ECU Kit DDE 8517015 Automatic
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Mercedes W221 SAM Module Control Unit ECU A2215404762
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Audi S3 8V Multimedia MMI Radio Stereo Audio Head Unit CD Player 8T2035186Q
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Seat Control Module BMW E60 X5 E70 ECU Seat Unit Controller 9184559
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BMW E39 M5 Xenon Headlight Control Module Unit ECU 8387114
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Mercedes W211 W219 Earth Ground Cable Battery Wiring Loom Engine A2115420518
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Seat Wiring BMW F07 F10 Front Passenger Seat Wiring Loom Harness Cable 9219988
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Air Module BMW E65 E66 Driver's Seat Sensor Control Unit 6929557
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Mercedes W203 W209 270CDI OM612.962 170HP Engine Unit ECU A6121537779 Automatic
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Relay 12V V23134A1052C643 V23134-A1052-C643
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Audi A6 C5 AVF 1.9 TDI 130HP Diesel Engine Control Unit ECU Module 038906019LM
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Fuse Box Citroen C4 Peugeot 3008 BSM Control Unit Module 9667044980
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BMW G11 Seat Control Module Unit 7943767 61357943767
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BMW F13 Central Gateway Control Lear Module Unit ECU 9393659
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Active Steering Wiring BMW E81 E87 E90 E92 Power Steering Cable Harness 9141172
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Mercedes Vito W639 OM646.980 Engine ECU Control Unit A6461501077 Automatic
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BMW E81 E82 E87 E88 Boardmonitor Central Information Display Screen 6954165
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BMW E65 N52 730i 258HP Engine ECU Kit DME 7567178 CAS Key Automatic Transmission
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Mercedes W212 E63 AMG M156.985 Engine Unit ECU Kit A1569000500 Key Ignition
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BMW F30 F32 LCI 335dX 435dX N57Z 313HP Control Unit ECU Kit DDE 8586536 FEM Key
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Mercedes-Benz W204 Front Right O/S Seat Memory Control Unit Module A2048209485
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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 .