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 W204 Battery Fuse Box Positive Distribution Terminal A2075401550
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Door Module Mercedes W176 W246 Front Left N/S Control Unit VST A1669005605
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BMW E81 E87 E90 LCI 118d 318d N47 Diesel ECU KIT DDE CAS3 Key 8506375
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Parking Module Mercedes W169 W245 PDC Distance Control Unit Sensor A1695400762
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Navigation Module BMW F10 F20 F22 F30 F32 Sat Nav DAB Head Unit High 9318750
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BMW E81 E87 E90 E91 E92 CAS 3 Key Reading Module Control Unit ECU 9147196
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Mercedes W211 Seat Memory Control Unit Module Front Right O/S A2118700726
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BMW E87 LCI E90 120i 320i N43 170HP ECU Kit DME 7579142 CAS3 Key Automatic
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Seat Ateca Mk3 Headlight Module Headlamp Ballast Left Right N/O/S 7P5941591AH
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Mercedes W212 Engine Wiring Harness Cable Loom A6511500186
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BMW F01 F02 Air Suspension Control Unit Rear Axle 6857942
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BMW E70 Body Control Module Unit Junction Box PL4 JBBFEIII R ECU 9286796
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Mercedes Sprinter W906 Alternator Generator Diesel 180A 14V A0009068802
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BMW F23 Cabrio Convertible Folding Top Module CVM 8 Unit 9378072
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CD Changer BMW E60 E61 E63 6-Disc Compact Changer With Magazine 9131850
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Audi A4 B7 Window Antenna Amplifier Module 8E5035225D
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Volkswagen New Beetle 1.4 TSI Petrol Engine Starter Motor 02Z911023E
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BMW 1 X4 X5 Series F20 F21 F25 F26 Antenna Aerial Diversity Trap Circuit 9181463
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BMW 1 3 Series E87 E90 LCI 120d 320d N47 Diesel ECU Kit DDE 7807827 CAS3 Key
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Audi A3 8P Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655A
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Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907063DC
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BMW 7 Series E65 Light Control Module Unit Lear LM E6X DYN. LWR (LCM) 6962720
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Renault Trafic 3 Vauxhall Vivaro B Body Control Module ECU BCM T4 L4 284B18533R
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BMW 5 Series E61 LCI Light Control Module Unit Lear LM II E6X LWR 9180756
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Head Unit BMW E90 E91 Radio CD Player Navigation Sat Nav DAB Unit 9273187
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Alternator Generator Mercedes W211 CLS C219 OM642 Diesel 14V 180A A0131547002
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BMW F30 F31 F32 Tailgate Smart Opener Control Unit Module 7306797
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Audi A3 8P Body Control Module Unit 8P0907063G
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BMW E91 Touring HiFi Amplifier Speaker System Control Unit Module 9143161
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Headlight Ballast BMW E60 E61 E90 E91 Xenon Adaptive Control Module 6941634
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Mercedes R350 V251 Head Unit Radio Player Navigation Media Bluetooth A2519005200
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Audi A3 8P 2.0 TDI 140HP Diesel Engine Control Unit ECU Module DSG 03G906016DT
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207026
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Mercedes W124 E280 Comfort Control Module Unit ECU A2028200926
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Mercedes C207 W212 Head Unit High Line Radio Sat Nav DVD Bluetooth A2129006709
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Mercedes W639 120CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock
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Alternator BMW E53 E83 M57N2 Generator Diesel Engine Power 150A 7797661
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Part no. 6906609
Fuse Box Control BMW E87 E90 E91 E92 E93 Front Power Distribution 6906609
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On Board Navigation BMW E60 E61 E90 E91 Display Monitor Screen 6,5" 6962424
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Audi A4 B8 A5 8T Diesel 2.0 TDI Starter Motor Manual 03L911024
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BMW E90 Light Control Footwell Module ECU MAX Brose FRM3R PL2 Lear 9390491
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Audi A8 4E S8 D3 Head Unit Interface Control Module 4E0910732A
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BMW 5 6 E60 LCI E63 Radio CHAMP Business Player System Controller 9192680
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Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6961364
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Volkswagen LT 35 Door Module Central Locking System Module Unit 2D0959800
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BMW G11 G30 G31 X4 F26 Telematics Module Bluetooth Control Unit ECU 2447787
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Audi Q7 4L Positive Battery Terminal Cable 4L0971225D
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Part no. 7802471-1
Alternator Generator BMW E87 E90 E91 Diesel Engine Electrical Unit 150A 7802471
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Fuse Box Mercedes W204 S204 W212 SAM Control Unit Module Relay A2129006724
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Part no. 7809000
BMW E60 E87 E90 120d 320d 520d N47 ECU Control Unit Module DDE 7809000 Manual
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Volkswagen Polo 6R Engine Starter Motor Assembly Unit 0AM911023F
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Mini Cooper F54 F55 F56 F60 Radio CD Player Media Head Unit Alpine 9344044
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BMW Z4 E89 LED Footwell Control Module ECU 9286885
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Mini Cooper S R56 R57 N14 1.6 ECU Control Unit Kit DME 7610011 CAS3 Key Manual
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BMW E90 M-Audio System CD Player Controller Navigation Sat Head Unit 9200447
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Mini Cooper R55 R56 R57 LCI R60 Radio Boost CD Player Head Unit 3457434
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Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519000700 Manual
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BMW E90 E91 LCI N47N 320d 184HP ECU KIT DDE CAS 3 Key 8518269 Manual
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BMW E81 E87 E90 E91 LCI Combox Telematics Module 9248179
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BMW E92 Footwell Xenon Light Control Module Lear FRM3R PL2 9240528
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BMW G30 G31 Fuse Distribution Box Holder Control Unit Bracket Carrier 9330542
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Mini One R55 R56 N12 1.4 95HP Petrol ECU Kit DME 7640005 CAS3 + Key Automatic
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Mercedes W140 Seat Memory Control Unit Module Front Left N/S A1408201426
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Mini Cooper R55 R56 N12 1.6 120HP Engine Control Unit ECU DME 7588502 Manual
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Part no. 9381320
BMW F45 Mini F55 F56 Head Unit Basic Media DAB Headunit 9381320
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Part no. 9136874
Mini Cooper R55 R56 R60 CAS 3 ECU Control Unit Key Reading Module 9136874
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BMW X5 E61 E65 E70 E90 Telematics ECU Control Unit GSM 6983009
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Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 8T0971365Q
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Ford Mondeo Mk4 Battery Terminal Cable Wiring Connecting 8G9T-14A280
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Mercedes S212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129001606
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Audi Q7 4L Parking Control Unit ECU Module Sensor PDC 4F0919283H
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Ford Transit Connect Starter Motor Engine Actuator Diesel 1.6 3M5T-11000-CF
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BMW E53 E60 E61 E65 E66 E83 Power Steering Speed Sensor 6777435
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Mercedes-Benz B-Class W245 180CDI Engine Wiring Harness Loom Cable A6401504033
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Mercedes W176 W246 Display Screen Radio Navigation Sat Nav Unit A2469007018
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Audi Q3 8U 2.0 TDI DFUA 184HP Quattro Engine Control ECU 04L907309AB Automatic
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BMW X1 E84 20dX N47 177HP Engine Control ECU Kit DDE 8512498 Automatic
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VW Touareg 7P Steering Wheel Multifunction Control Unit Module 7P6959542
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Mercedes R172 Cable Beam Engine Wiring Harness Loom A1725400533
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BMW 3 5 7 X5 Series E38 E39 E46 E53 Generator Alternator Bosch 120A 7501690
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Volkswagen Crafter 2E 2.0 TDI Diesel Engine Alternator 03L903023P
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Head Unit BMW F20 F21 F30 F31 LCI Radio Media Player Sat Nav High 2 6829104
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Volkswagen VW Golf V 1.9 TDI Diesel Engine Starter Motor Unit 022911023H
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Mercedes W207 W212 Head Unit CD Player Radio Navigation Controller A2129006417
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BMW 1 3 Series E81 E87 LCI E90 E91 120d 320d N47 ECU KIT DDE CAS 3 Key 7811700
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BMW E60 E61 E63 E64 E90 E91 FBAS Analog Video Module Unit 6960433
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Mercedes W204 Radio Stereo CD Player Audio Sat Nav Head Unit A2049069701
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Mercedes W221 DSM ISM Automatic Gearbox Control Unit Module ECU A1644460710
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BMW E93 Convertible Cabrio Rear Bumper TV Aaerial 9152325
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BMW F10 PDC Rear View Backup Camera Control Module Unit ECU 9288002
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Audi A5 8T MMI Multimedia Navigation Radio Control Head Unit 4G0035061S
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Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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BMW X3 E83 2.0i N46 ECU Engine Control Unit KIT DME 7561834 EWS Keys Manual
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Mercedes W203 Gearbox Transmission Control A0325451232
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Audi A7 4G8 3.0 TDI CZVA Adblue Control Module Unit ECU 4G0907355G
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BMW F20 F30 LCI 118i 318i B38 Engine Wiring Loom Harness Cables Set 8635811
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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 .