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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Land Rover Discovery 4 L319 Family Entertainment Controle Module BJ32-11E001-AD
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BMW E81 E87 E90 LCI 118d 318d N47 Diesel ECU KIT DDE CAS3 Key 8506375
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Mercedes W176 A200 CDI BE OM651.901 Engine ECU Kit A6519007600 Key + Lock
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BMW 7 Series F01 LCI ECU Body Control Module Junction Box JBBFEIII V5 9286940
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Battery Cable Mercedes Vito W639 Negative Lead Wiring Harness A6395460121
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MINI Cooper R50 Lodgesons Steering Wireless Control Unit Module System
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Mercedes W169 W245 M266.920 95HP Engine Control ECU Kit A2661539779 Manual
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BMW X3 F25 X4 F26 B47 Diesel Engine Harness Wiring Loom Cable 8516262
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Audi A8 4E S8 D3 TV Tuner DVB Receiver Hybrid Digital / Analog 4E0910148C
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Nissan Qashqai Renault Megane II Dacia Duster dCi Engine Alternator 820072829
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BMW F80 M3 F82 M4 S55 450 HP Engine Control Unit ECU DME 8699973 Dual Clutch
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BMW E60 E61 E65 Compact Alternator Generator Valeo 170A 7792072
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Mini R60 R61 Ultra Sonic Module Alarm System Sensor 9806332
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BMW X1 E84 Footwell Light Module Control Unit ECU PL2 FRM3R 9263797
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Mini Cooper One R50 Petrol W10 W11 Engine Control Unit DME 7520019 Manual
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Fuse Box Mercedes W169 W245 Electrical Relay Control Module Unit A1695451740
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VW Volkswagen Golf VI 6 Bluetooth Interface Control Module Unit ECU 5K0035730D
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Mercedes W221 Prefuse Fuse Distribution Box Unit Front A2215401250
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Mercedes-Benz ML W163 270 CDI Engine Control ECU Kit A6121536379 Key Automatic
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Ford Transit Connect Head Unit Radio AM FM Cassette 2T1F-18C838-BC
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Seat Wiring BMW X3 F25 X4 F26 Cable Loom Harness Passenger's Side 9316662
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Mercedes W907 Starter Wiring Battery Alternator Cable Harness Loom A9075401205
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Audi A3 8P 2.0 TDI CBBB Diesel Starter Motor 02M911024P
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BMW E88 Cabrio 125i N52N 218HP ECU Kit DME CAS3 Key 7587164 Automatic
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Mini Cooper R57 PL3 SPEG H4 Fuse Distribution Box 3456911
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Part no. 6C0959655J
Control Unit Seat Ibiza 6J VW Polo 6C 6R Air Module Unit ECU Bosch 6C0959655J
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BMW E46 Inclination Indicator Alarm Tilt Sensor Control Module 8386932
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BMW E90 E91 LCI 320d N47N 184HP Engine Control ECU Kit DDE 8519668 Automatic
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Mercedes-Benz M-Class ML W164 Front Left N/S Cable Wiring Duct A1645460161
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Part no. A2115456532
SAM Module Mercedes W211 C219 Front Body Comfort Control Unit ECU A2115456532
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BMW 1 3 SERIES E82 E88 E90 LCi Switch Cluster Cruise control Stalk Unit 6962671
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BMW E91 LCI ECU Body Control Module M Junction Box PL2RR JBBFE IIIR 9267421
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Part no. A1408201526
Mercedes W140 Seat Heated Heating Control Unit Module ECU A1408201526
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Mercedes W238 Coupe Convertible Module Control Unit ECU A2059001336
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Peugeot 207 Airbag Module ECU Control Unit Sensor Air Bag 9663593380
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Bluetooth Interface Audi TT 8J A3 8P Multimedia Steuergerät ECU 8P0862335K
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Part no. 04E903024S
Volkswagen Golf SV Audi A3 8Y 1.5 TSI Alternator Generator 04E903024S
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Starter Motor Mercedes W639 W906 Diesel Engine A0009062302 0986024530
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BMW 1 Series E87 LCI ECU Body Control Module Unit H2 PL2RR JBBFE IIIR 9227184
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Mercedes-Benz C-Class W203 Fuse Box Control Unit Module SAM A2035452901
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Citroen Berlingo B9 1.6 HDI 9HT Engine Control Unit ECU EDC 9664843780 Manual
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CAS4 Module BMW F01 F10 F11 Key Reading Control Unit 9257036
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Mercedes W211 Cable Loom Wiring Parking Sensors Rear A2115406606
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Mercedes-Benz A B W176 W246 160 180 CDI Transmission Control Unit Module ECU
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BMW E46 GM V Body Control Unit Module Junction Box 6907657
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BMW 1 3 Series E87 LCI E90 E91 E92 Radio CD Professional 9144773
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Audi A8 D3 Amplifier BOSE Audio Sound System Module 4E0035223N
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BMW E61 LCI Body Gateway Module KGM HIGH 27 D-Can LEAR 9197317
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VW Volkswagen Touareg 7P Rear Boot Lid Tailgate Control Module Unit 7P6959107C
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Audi Q7 4L Headlight Level Range Adjustment Module Control Unit 4L0907357B
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BMW 1 Series E87 LCI ECU Footwell Light Module BASIS PL2 FRM3R Lear 9230451
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BMW E46 Wing Mirror Memory Control Unit Module ECU 8386427
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Part no. 04B903023B
Volkswagen Polo Mk5 Alternator Generator 140A Diesel Engine 04B903023D
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BMW E81 E87 LCI E90 N43 118i 318i Petrol ECU Kit DME 7595179 CAS3 + Key
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Mercedes R171 W203 W211 Phone Adapter Contact Plate Holder Telephone A2038201411
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BMW E81 E87 E90 MULF Hands-free Electronics Charging Module 9200821
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Head Unit BMW F20 F21 F22 F30 F31 Radio CD Navigation GPS 6840399
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Part no. 7542310-3
MINI Cooper R50 Petrol W10 116HP Engine ECU Kit DME 7542310 EWS3 Key Manual
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Part no. A1729015805
Mercedes SLK R172 Airbag Module SRS Control Unit ECU A1729015805
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Part no. 6944108
BMW 5 6 Series E60 E61 E63 M-ASK Business Navigation System Controller 6944108
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BMW 3 5 7 X5 E38 E39 E46 E53 6-disc CD Changer Without Magazine 8377049
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Part no. 6874797
BMW F25 VDC1 Suspension Control Module Unit ECU 6874797
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BMW M3 F80 LCI VDC Controler Adaptive M Suspension Mode Control Module 6881597
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Part no. 9381104
FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9381104
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Part no. 4G8971365M
Audi A7 4G Seat Cable Front Left Right N/O/S Wiring Loom Harness 4G8971365
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Part no. 4F0907468R
AUDI Q7 4L Quattro 3.0 TDI BUS Diagnostic Gateway Interface Module 4F0907468R
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Part no. 05E903026Q
Audi A1 GB Seat Ibiza FR Alternator Generator 140A Petrol 1.0 TSI 05E903026Q
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Part no. 9203081-2
BMW 5 Series E60 LCI Light Control Unit Module LEAR LM II E6X LWR 9203081
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Computer Mercedes W205 X253 W447 Navigation Radio Player Head Unit A2059001722
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Mercedes W212 OM651 Diesel Engine Wiring Harness Loom Cable A6511503633
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Control Unit BMW F07 F10 F11 F12 F13 F25 Air Module ECU Unit Continental 9385025
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9239323
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Part no. 7838656
BMW 3 Series E90 E91 E92 M3 Engine Alternator Generator Valeo 180A 7838656
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BMW E87 LCI E90 E91 120i 320i Petrol N43 170HP ECU KIT DME 7575665 CAS3 + Key
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Audi Q5 8R Air Module SRS System Control Sensor ECU Unit 8R0959655E
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Citroen Relay Jumper 35L Alternator Bracket Belt Tensioner Holder 9807162780
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BMW E87 Junction Box ECU Body Control Module Unit H2 PL2RR JBBFE IIIR 9253482
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Starter Motor Mercedes W639 W906 OM651 Engine Diesel Bosch A6519060000
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BMW E60 E90 E92 335i 535i N54 306HP Petrol Engine Control Unit ECU DME 7573863
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Distance Radar Module Mercedes W177 W205 W253 Front Distronic Unit A0009053011
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BMW E46 E53 Mini R50 R53 6-Disc CD Changer Multichanger Without Magazine 9131852
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Gearbox Module Mercedes S203 W203 C200 Automatic Control Unit ECU A0325453232
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Ignition Module Mercedes V177 Electronic Ignition Switch Keyless Control Unit
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Mercedes C118 CLA200 282.914 163HP Petrol ECU Kit A2829003300 Key BCM Automatic
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BMW X5 E60 E65 E70 Front Right Seat O/S Height Adjustment Drive
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Mercedes SLK R171 Front Bumper Parking Sensor PDC Wiring Harness A1715403832
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BMW E65 E66 CD Audio System Controller Player MD 9125894
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Mercedes W204 W212 Fuel Pump Module Control Unit ECU AMG C63 A0009003500
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Audi A5 8T Onboard Comfort Supply Control Module Unit ECU 8K0907063DH
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Land Rover Discovery Sport L550 Front Windscreen Camera HK72-19H406-AC
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Audi A7 4G 3.0 TDI Alternator Generator 059903018TX
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Gateway Module Mercedes W211 Control Unit ECU A2115408545
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Audi A3 8V Bang Olufsen Audio AMP Amplifier Module Control Unit ECU 81A035466B
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Mercedes W204 C250CDI 204HP OM651.911 Engine ECU Kit A6519005301 Automatic
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Audi TT 8J Coupe Roadster Convertible Roof Control Module ECU 8J7959255B
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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 .