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-Benz W202 C208 Roof Alarm Motion Sensor Cover Trim Grey A2086900028
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Mercedes S212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129001606
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Rear View Mirror Cable Mercedes W169 W245 Wiring Loom Harness A1695400706
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Audi A3 8P 2.0 TDI 170HP BMN Engine Control Unit ECU 03G906018DN Automatic
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Engine Wiring Mercedes W212 Diesel OM651 Cable Loom Harness A6511505933
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Radio Player Mercedes W204 COMAND Navi CD Head Unit A2048700196
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Mini Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS 3 + Key Manual
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BMW G20 Starter Wiring Battery Alternator Cable Harness Loom 8483814
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BMW 5 6 Series E60 E61 LCI E63 E64 M5 M6 Earth Cable Starter Battery 7835548
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BMW X3 E83 LCI Fuse Box Grouping Map Diagram Location 3428544
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Mercedes W204 Battery Wiring Cable Harness Loom Rear A2045403510
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BMW E65 E66 Battery Cable Positive Plus Pole 6904905
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Audi A3 8P Fusebox Body Control Comfort Module BCM Unit ECU 8P0907279F
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Volkswagen Golf Mk5 2.0 TFSI Petrol Alternator Generator 06F903023HX
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BMW X5 Series E70 Footwell Light Control Module Unit LEAR FRM II NSW 9170452
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Audi A8 4E S8 D3 Comfort Module Electric Steering Column Unit 4E0907279S
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Alternator Mercedes W204 W207 OM651 14V 150A Engine Start/Stop A0009060401
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BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
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Mercedes S204 Module Control Unit Trunk Lid Rear Tailgate Lift A2048702826
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BMW F20 F21 F23 F30 F31 F32 Telematics Control Unit Module ATM ECE 4G 2622598
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BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
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Mercedes SLK R172 C207 Front Fuse Box Relay Control Unit SAM Module A2129006429
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BMW F10 F20 F30 Reversing Camera ECU Control Unit Module 90847906
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BMW F07 GT F10 F11 535d F13 640d LCI N57Z 313HP Engine ECU DDE 8586536 Automatic
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Audi A4 B7 Cabriolet Roof Motor Wiring Harness Wiring Loom 8H0972387
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Fuse Box Mercedes SLK R171 Roadster SAM Relay Box Control Module A1715451701
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Audi TT 8N Radio Stereo Player Head Unit Chorus 4B0057186PX
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Mercedes-Benz A-Class W169 CD Player Radio Stereo Head Unit A1698700289
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Mercedes R171 W203 Petrol Engine 271921 Wiring Harnes Loom A2711505433
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Alternator BMW F20 LCI F30 Mini F56 F60 Alternator Generator DENSO 180A 7640132
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Mercedes W211 W219 Earth Ground Cable Battery Wiring Loom Engine A2115420518
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BMW E60 E81 E90 LCI Adapter Cable CIC System 9185171
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Renault Trafic Display Screen Sat Nav Navigation Unit Dashboard 259151852R
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BMW E81 E82 X1 E84 E87 E90 E91 E92 Power Distribution Box Black 6942912
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Mercedes Vito W639 Rear Left Right Sliding Door Lock Bowden Cable Wiring
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Mercedes W168 OM668 Diesel Alternator Generator A6681540102
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Radio Player BMW F20 F21 F22 F30 F31 CD Bluetooth Head Unit Control 9310461
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BMW X6 Series E71 Aerial Antenna Amplifier Diversity 868 MHZ 9130157
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VW Polo 9N Seat Body Control Comfort Unit Module BCM Convenience Unit 6Q1937049B
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BMW E60 E61 525d Diesel M57N 177HP Engine Control ECU Module DDE 7794650
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BMW X1 E84 Radio Stereo CD Player Navigation Nav Head Unit 9283247
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Skoda Rapid NH1 1.4 TSI Petrol Alternator Generator Bosch 04E903021M
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Mazda 6 GJ Engine Starter Motor 2.2 Diesel M001T81582
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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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BMW Z4 Series E85 Roadster Cabrio Sensor B-pillar Airbag Right O/S 6928572
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549F
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BMW Mini Cooper R56 LCI R60 R61 Radio Visual Boost CD Player CHAMP 2 9354728
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Audi A5 8T Gateway Control Module Unit ECU 8T0907468F
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Mercedes W212 Fuse Box Control Unit Module SAM Relay Box A2129008307
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BMW 1 3 5 Series F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module
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Mercedes W203 W211 C209 M271 Petrol Engine Alternator A2711540802
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BMW X6 E71 Footwell Light Control Unit Module FRM3R LEAR 9308373
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Airbag Module Mercedes W169 W245 Air Bag Sensor Control Unit ECU A1698207826
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BMW E87 LCI E90 E91 120i 320i Petrol N43 170HP ECU KIT DME 7575665 CAS3 + Key
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Mercedes C117 CLA45 AMG M133.980 4-Matic Engine Control ECU Kit A2709002100 Key
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Mini Cooper F56 B38 1.5 136HP Petrol Engine ECU Kit DME 8655106 BDC + Key Manual
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On-Board Monitor BMW X5 E70 X6 E71 Sat Nav System Screen 8,8" 9194064
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BMW E81 E82 E87 E88 E89 E90 E91 E92 Radio Professional Autoradio CD 9187108
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Mini F56 B38 1.5 136HP Petrol Engine ECU Module DME 8655106 Manual
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BMW X5 X6 Series E70 E71 Transfer Box Control Unit Module ECU 7605031
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Mercedes W204 Radio Player Audio 20 Navi CD Player Head Unit A2049069701
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BMW E60 E61 E63 E64 PDC Parking Distance Sensor Diamond Metallic - A10 2180149
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BMW 5 Series E60 Front Seat Module Control Unit 6927271
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Mercedes W205 W213 Engine Alternator Generator M264 Petrol A0009067703
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Volkswagen New Beetle Convertible Roof Control Module Control Unit 1Y0959255C
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BMW 5 X5 Series E39 E53 1 Radio Business CD Player Unit 6961218
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Mercedes W167 W177 Radio Stereo Player Sat Nav Head Unit ECE A1679000511
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Vauxhall Vivaro B Radio Stereo Head Unit Mount Bracket Holder Support 93867998
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Audi A6 C6 3.0 TDI 240HP CDYA Quattro Engine ECU Kit 4F9910402A Ignition + Keys
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Steering Lock Mercedes W176 W246 Control Unit Module VST A0999000400
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Audi A8 D4 Reader Radio CD System Audio MMI Multimedia Head Unit 4H0035670T
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Mini Cooper R56 R57 High SPEG PL3 H4 Fuse Distribution Box 3455442
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Audi Volkswagen Seat Skoda 2.0 TDI Diesel Starter Motor Engine Bosch 02M911023P
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BMW E90 E91 LCI N47N 320d 163HP Engine ECU KIT DDE 8510829 + CAS3 + Key Manual
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Navigation Player Mercedes W211 W219 DVD CD Reader Control Unit A2208703589
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BDC Module Mini Cooper F56 Body Domain Controller Unit Fuse Relay Module 8796101
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Alternator Mini Cooper R55 R56 R57 R57 R58 Generator Petrol 7575650
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Renault Clio Alternator Mount Bracket Holder Carrier 8200663057
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BMW 5 X3 Series E39 E60 E61 E83 PDC Ultrasonic Parking Sensor Black 4687921
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Parking Control Module Mercedes C118 W177 W247 PDC Bluetooth Unit A0009004434
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BMW X1 E84 Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 9340339
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Rear Bumper PDC Audi A5 Sensor Parking Distance Control 420919275
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BMW E81 E87 E90 E91 E92 E60 E61 Loudspeaker Speaker Logic7 L7 HiFi Audio 9143121
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Mercedes CLS W219 Door Module Front Left N/S Control Unit Module A2198202326
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Volkswagen Caddy Maxi Front Door Right O/S Electrical Wiring Harness 2K5971557
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Mercedes ML W164 Aerial Antenna Amplifier Module Unit A1648701589
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Mercedes X218 CLS 350CDI OM642.853 Engine Control Unit ECU Kit A6421508900 Key
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BMW X5 Series E53 PDC Parking Control Module Unit PDC 6919905
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BMW 1 Series E87 ECU Footwell Light Module Control Unit PL2 FRMFA 6955491
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Mini Cooper SD R55 R56 LCI R60 N47N 143Hp Diesel ECU Kit DDE 8519663 CAS3 Keys
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Audi Q7 4L 3.0 TDI BUG 233HP Engine Contol Unit ECU 4L0910401T Automatic
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Mercedes W212 OM651 Diesel Engine Wiring Harness Loom Cable A6511503633
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio Professional CD Audio Player 9189200
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530K
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BMW F10 M5 F12 M6 Engine Wiring Harness Valvetronic Servomotor Cyl.1-4 7843335
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Audi A8 4E S8 D3 Head Unit Interface Control Module 4E0910732A
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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 .