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 3 Series E91 ECU Body Control Module Unit H2 61359226331 9226331
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Phone Adapter Mercedes W203 W211 Contact Plate Holder Telephone A2038201311
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Audi A5 8T Headlight Inner LED Inner Module Unit 6NHM0000 130831041000
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MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970
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Mini Cooper R56 N12 1.6 120HP ECU Kit Engine DME 7640005 + CAS3 + Keys Manual
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Volkswagen Golf MK 7 Audi A3 8V 1.4 Alternator Petrol 04C903023K
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Renault Trafic II Opel Vivaro B 2.0 DCI Diesel Engine Starter Motor 8200621305A
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Mercedes Vito W447 Front Passenger Side Fuse Box Control Unit Module A4475407880
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BMW E61 Body Control Module Unit ECU BCM KBM High 6957529
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Opel Zafira Insignia 2.0 A20dth Cdti Glow Plug Wiring Loom Harness 55567591
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Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
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VW Volkswagen Golf Sportsvan Multimedia Sat Nav Radio Display Screen 5G6919605B
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Mini One R55 R56 N12 1.4 95HP Petrol ECU Kit DME 7640005 CAS3 + Key Manual
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SAM Module Mercedes CLK W209 C209 A209 Fuse Box Relay Control Unit A2095452801
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Mercedes R171 SLK200 Module Front Door Left Control Module Unit A1718200726
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Audi Q7 4M Rear Hatch Boot Lid Tailgate Opening Control Module Unit 80A962243
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Air Module BMW F20 F23 F30 F32 F36 Domain Control Module ICM Plus Unit 6879835
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PDC Parking Sensor BMW F01 F10 F11 Front Rear Bumper Imperial Blau Blue A89
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Audi A4 B9 Battery Positive Terminal Cable Plus Pole Wiring Harness 8W0915459E
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Ford Transit Mk7 Radio CD Player Head Unit Autoradio 6000 CD 8C1T-18C815-AA
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Seat Module Mercedes C238 Front Right Seat Control Unit A2139008409
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Rear Module Mercedes C238 PDC Parking Assistant Parktronic Control A0009006616
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Mercedes-Benz W169 W245 Door Module Front Left N/S Control Unit A1698208326
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Mercedes W211 Radio Head Unit CD Audio Player Control Unit A2118702889
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BMW E88 E90 E91 E92 LCI F20 F21 F30 Ignition Wiring N55 Engine Harness 7592511
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Battery Cable BMW X5 X6 E70 E71 IBS Negative Battery Lead Cable 9164357
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Starter Renault Trafic II Opel Vivaro A 2.0 dCi Starter Motor Remy 233002654R
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Audi Q7 4L Headlight Level Range Adjustment Module Control Unit 4L0907357
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SAM Module Mercedes W213 C238 Rear Trunk Control Unit ECU A2139003326
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BMW 3 X5 Series E46 E53 3.0d M57 Alternator Belt Tensioner 2354130
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BMW E87 ECU Body Control Module Unit H2 PL2 JBBFE 9119493
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BMW E87 E90 E91 E92 Front Power Distribution Fuse Box 6906622
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BMW F11 Control Unit Rear Tailgate Boot Lid Function Module ECU 7333939
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Mercedes-Benz C CLK Class W203 C209 ESP Yaw Rotation Rate Sensor A0045420418
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Ford Transit MK7 Body Control Unit Module BCM Fuse Box CC1T14A073BD
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Air Module Sensor BMW Z4 E64 E85 B Pillar Right O/S 6962888
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BMW E81 E87 E90 E91 E92 E93 Radio CD Player Professional Control Unit 9231931
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BMW E39 523i Petrol M52 Immobiliser EWS 3 Control Module Siemens 8382454
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Peugeot 5008 2.0 HDI Diesel Injector Wiring Loom Cable 968824678
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BMW E60 Light Control Unit Module LME6X MAN.LWR Lear 6962723
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Starter Motor Mercedes W639 W906 Diesel Engine A0009062302
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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CD Player BMW E60 E61 LCI E63 E64 Radio Stereo CHAMP Business Head Unit 9187903
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Volkswagen Tiguan 5N Air Module Control Unit Module 1T0880201T
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BMW F10 F20 F30 Integrated Relay Power Supply Module Distribution Box 7633242
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Renault Master Laguna 2 Opel Movano A Engine Alternator 14V 150A 8200660022
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Alternator Nissan Qashqai 2.0 dCi Diesel Engine Alternator 12V 150A 23127JG71B
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BMW X5 E70 ECU Body Control Module Unit JBBFEII PL4 LOW 9146036
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Mercedes C205 Keyless Go Module Unit Bracket Mount Holder Support A2055455440
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Mercedes W212 Audio 20 CD Player Audio Stereo Radio Head Unit A2129003908
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Part no. 8200690199
Renault Trafic II Alternator Generator 120A SG12B050 8200690199
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Audi A4 B8 Door Wiring Harness Loom Rear Right O/S Cabling 8K0971688AG
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Audi Q5 8R Door Lock Control Module Unit ECU Front Left N/S 8K0959792N
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BMW E60 E90 E91 LCI 330i 530i N53 272HP ECU Kit DME 7616431 CAS3 + Key Automatic
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BMW 5 6 Series E60 E61 E63 ECU Key Reading Module Control Unit CAS 2 6963828
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Mini Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS 3 + Key Automatic
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BMW F15 F85 F16 F86 Steering Wheel Lane Change Control ECU Module Unit 7849446
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Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Glow Plug Relay Unit Black 8200798585
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Engine Wiring Mercedes W906 Diesel OM651 Cable Loom Harness A6511502900
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BMW G20 Radio Audio Amplifier Remote Receiver Control Module Unit 5A4CE55
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC Unit 9258278
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VW Golf Mk5 Engine Wiring Loom Cable Harness Injector Module Diesel 03G971826A
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Land Rover Range Rover Engine L322 3.0d M57 306D1 Unit Module ECU DDE 7791367
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Fuse Box Mercedes C118 W177 W247 Battery Relay Terminal A1775404107
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Audi A3 8P Negative Battery Terminal Cable Wiring Battery Wire 1K0971250AL
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BMW E91 ECU Body Control Module H4 Electronic Box 61359177987 9177987
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Mercedes-Benz W169 W245 48V Technology SAM Control Module Fuse Box A1699001600
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BMW E60 E61 E63 E81 E87 E90 E91 DAB Radio Tuner Module Unit 9119359
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Mercedes W221 Power Supply Battery Control Module Unit A2215400401
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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 .