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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Part no. 7811702-2
BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7811702 + CAS3 + Key Manual
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Surround View Camera Mercedes W205 W447 Camera Control Unit Module A2059002629
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Audi TT 8N Alternator Main Cable Wiring Harness Loom 8J0971349CF
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Mercedes W213 Air Con Conditioning Module A/C Climate Control Unit A2139000407
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Battery Cable VW Polo 6R Positive Alternator Starter Wiring B+ 6R0971349Q
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BMW E81 E87 E90 LCI 120d 320d N47 ECU Kit DDE 8506374 CAS3 + Key Automatic
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VW Volkswagen Golf Mk6 Tiguan Mk1 Audi Q3 Mk1 VALEO Starter Motor 02M911021B
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Mini R56 LCI One 55kW N16 1.6 75HP Engine ECU Kit DME CAS 3 + Key 7620987
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Ford Transit Connect Central Lock Control Unit Alarm Module ECU 2T1T-15K600-BD
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BMW E60 E61 CCC CD Professional Navigation System Controller 6949171
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BMW E46 Coupe Convertible Door Wiring Passenger Side Cable Harness Loom 6903096
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Audi A6 C6 Bluetooth Multimedia Interface Control Module Unit ECU 4E0910336MX
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Land Rover Range Rover Evoque L538 Rain Sensor Module BJ32-18D693-AC
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Battery Wiring Mercedes ML W166 Battery Negative Terminal Cable Wire A1665420518
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Mini One R56 LCI R58 N16 1.6 98HP Engine ECU Kit DME 8625068 CAS 3 + Key Manual
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BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9294309
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Renault Trafic II Vauxhall Vivaro A 2.0 DCI Alternator Generator 8200404459D
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Mercedes W207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900
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Audi A3 8P VW Scirocco Mk3 Starter Motor Engine Valeo 1.4 TSI Petrol 02Z911024P
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BMW F80 M3 F82 F83 M4 431hp Engine Control ECU Kit DME 8695512 + FEM Module Key
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Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2129006012
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BMW Mini Clubman R55 Cable Wiring Loom Splitdoor Door Rear Right O/S 9198760
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BMW Z4 Series E85 Roadster Cabrio Safety Information Module Airbag 6962767
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Mercedes Sprinter W906 OM651.955 163HP Engine Unit Module ECU A6519003403 Manual
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Smart ForTwo C453 Vauxhall Vivaro Mk2 BCM Body Control Module Unit 284B12763R
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CD Changer BMW E60 E61 E63 E64 Compact 6-disc Magazine 6938975
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BMW F20 F30 F31 LCI 118i 318i B38 ECU Basic DME Control Unit 8663284 Manual
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Audi Q3 8U Headlight Module LED Headlamp Control Unit 8U0998572A
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BMW E93 Audio Radio Sound Amplifier Unit HIFI System Lear 9246187
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BMW E46 N42 316i 318i Petrol Engine Alternator Generator Remy 7521382
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Key Reading Module BMW E60 E87 E90 CAS 3 ECU Control Unit 6943830
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Volkswagen Golf 1K Door Wiring Harness Loom Cable Front Drivers Side 1K0971120CH
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BMW Z4 E85 2.0 N46 150HP Engine Module ECU Kit DME 7565300 + EWS + Key Manual
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Audi A3 8P Door Wiring Harness Loom Cable Front Driver's Side 8P4971035Q
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Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500
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Volkswagen Touareg 7L Engine Starter Motor 077911023
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Mercedes W204 Fuse Box Rear Relay Control Unit Module SAM A2045458601
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BMW F20 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8518424 + FEM + Key Manual
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BMW E46 E64 Driver Side Seat Wiring Loom Electric Harness 7002532
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BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS 6970685
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Mini Cooper SD R56 LCI R60 143HP N47N Engine ECU Kit DDE 8517727 + CAS3 + Key
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Ford Transit Connect Control Unit Central Door Locking Module ECU 9T1T15K600ED
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Mercedes W205 GLC X253 Front Radar Sensor Module Control Unit A0009007907
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Mercedes Sprinter W906 Mechatronic Automatic Gearbox Control Unit A9062700060
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Mercedes SLK R171 Door Module Front Left Control Module A1718206926
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Audi Q7 4L Diagnostic Interface Gateway Control Module Unit ECU 4F0907468N
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Audi A6 C7 Ignition Smart Key Fob Lock Remote Alarm Button Control 4G0959754K
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Air Module Mercedes Vito W639 Sprinter W906 Control Unit ECU Sensor A9064461542
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Mercedes W212 Battery Holder Mount Bracket E-Class A2126280041
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Mercedes-Benz A W169 Front Driver's Side Door Wiring Loom Harness A1695408033
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Mercedes C209 CLK220 CDI 646.966 Engine ECU Kit A6461505091 Keys Lock Automatic
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BMW E46 Led Indicator Side Light Signal 7165845
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BMW Z4 E89 Roadster 18i N20 156HP ECU Kit DME CAS3 + Key 8631727 Manual
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Mercedes W221 S350 BlueTEC OM642.862 Engine ECU Kit Ignition + Key A6421508900
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Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CC
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Vauxhall Opel Insignia A 2.0 CDTI Alternator Engine Genarator 13579668
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BMW E90 E91 LCI 320d ed N47N 163HP Engine ECU Kit DDE 8506566 CAS3 Key Manual
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Mercedes W205 C220d 651.921 170HP BlueTEC Engine ECU Kit A6519000603 Key SAM
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VW Volkswagen Golf Mk7 1.6 TDI CLHA Diesel Engine Starter Motor 02Z911024L
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Mercedes Sprinter W906 313 CDI 651.955 129HP Engine ECU Kit A6519000601 Manual
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Skoda Octavia 5E Front Lamp Headlight Range Control Module Unit ECU 7P6907357A
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BMW X5 E70 X6 E71 Side View Camera Top Rear Control Unit Module 9291387
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BMW E81 E87 E90 E92 Comfort Access Passive Go Control Unit Module 6987184
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Mercedes Vito W447 Head Unit Radio DAB Navigation GPS Nav Display A4479005517
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Ford Focus MK3 Multimedia Control Switch Panel BM5T-18K811-TA
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Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715405145
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Audi A1 8X Multimedia Radio CD Player Navigation Head Unit 8X0035183
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BMW F10 F11 X5 E70 Alternator Generator Unit Valeo 230A Diesel Engine 7807187
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Part no. 3457031-1
Mini Countryman R60 Footwell Light Module High EKS ECU PL3 FRM3R 3457031
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BMW E60 530i M54 231HP Engine ECU Kit Unit DME 7533651 + CAS2 + Key Automatic
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Audi A4 B8 A5 Q5 Sportback Alternator Generator 059903016E
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Mercedes W164 W204 W211 C216 C219 M273 Starter Motor Assembly A0061513701
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Mercedes R171 Navigation Processor Multimedia Control Module Unit A2118701085
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Audi Q3 8U 2.0 TDI DFUA 184HP Quattro Engine Control ECU 04L907309AB Automatic
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Porsche Macan 95B Acceleration ESP Yaw Sensor Module Control Unit 95B907637E
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Mercedes-Benz W169 W245 Start Stop Starter Alternator Module ECU A2669001000
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Volkswagen Scirocco Mk3 1.4 TSI CAVD Engine Control ECU Kit 03C906027G Automatic
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BMW 1 3 Series 2 E81 E87 E90 E91 E92 6-disc CD Changer Without Magazine 6967641
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Ford Fiesta Mk7 Radio Stereo CD Player Head Unit Multimedia E1BT-18C815-HE
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BMW F30 LCI 330e B48X Battery Lead Negative IBS Wire Earth Cable 6832699
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Mercedes W211 Door Module Front Right O/S Driver Control Unit ECU A2118208285
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Ford Ranger Explorer Starter Motor Engine Actuator Diesel Mitsubishi M002T87271
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BMW Z4 E85 E86 Roadster Interior Fuse Box 6978265
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VW Golf 5 Steering Angle Steering Wheel Column Control Module 1K0953549CA
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Audi A3 8P 1.9 TDI BLS 105HP Engine Control Module Unit ECU 03G906056S Manual
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Mini Cooper R55 R56 N12 1.6 120HP ECU Kit DME 7600076 + CAS3 + Key Manual
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Ford Transit Mk8 Fuse Box Power Distribution Junction Relay BK3T-14401-EWD
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VW Touareg 7L Body Control Comfort Unit Module STG Convenience ECU 7L0959933H
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Negative Cable BMW X5 F15 X6 F16 Battery Boot Negative Lead Sensor 9380966
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Mercedes W212 Air Suspension Control Unit Module ECU A2125406462
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Volkswagen Jetta A6 USB Adapter Wiring Harness Lead Cable Connector 5N0035558
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BMW F20 F21 N47S1 Wiring Harness Engine Automatic Transmission Module 8578516
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BMW F45 X1 F48 Mini Cooper F55 F56 F60 Diesel Engine Starter Motor 8581788
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BMW 6 Z4 Series E64 E85 Sensor B-pillar Airbag Right O/S 6942102
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603
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VW Volkswagen Tiguan 5N Passat B7 Engine Bay Fuse Relay Box Terminal 3C0937125A
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VW Volkswagen Transporter T5 Comfort Convenience Body Module BCM 7H0937049T
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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 .