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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Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475L
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BMW 5 Series E61 Light Control Module Unit Lear LME6X Ohne LWR 6943288
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Audi Q2 GA 35 TDI DTTC 150HP Quattro Engine ECU Kit 05L907309B Ignition + Key
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Keyless Go Module Mercedes C118 W177 W247 ECU Entry Control Unit A1679003604
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BMW E60 LCI E90 325d 525d M57N2 Engine Control ECU DDE Kit 7811151 Automatic
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BMW 5 X5 Series E39 E53 Petrol M62 Engine Starter Motor Adapter Cable 7504737
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Audi A1 8X Stereo Sat Navi Navigation Radio Head Unit 8XA035192F
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BMW E60 E87 E90 E91 E92 CAS 3 ECU Control Unit Key Reading Module 9226238
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Comfort Unit Audi A4 S4 B8 Q5 8R Central Control Module BCM Unit ECU 8K0907064GH
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BMW F10 Control Unit Box F07 F11 Engine Ventilation Housing Box 7555193
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BMW E87 LCI E90 118i 318i N43 143HP ECU Kit DME 7579142 CAS3 Key Automatic
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BMW E90 E91 E92 CCC Navi DVD System Controller 6981569
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BMW E87 E90 E91 E92 Power Distribution Fuse Box Front 6906622
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Volkswagen Transporter LT 35 2.5 TDI Alternator Bracket Vw 074145169F
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Land Rover Freelander 2 Display Screen Multimedia Navigation Sat 6H5210E958
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BMW F20 F21 F30 F31 F32 Rear Body Control Unit Module REM 9279822
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SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049060305
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Skoda Rapid NH1 Engine Control Unit ECU Module 1.2 TSI CJZD 90HP 04E907309AF
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Mercedes X253 Hybrid GLC Battery Electrical Wiring Harness A2533402600
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Audi A4 B9 A5 F5 Q7 4M Q5 FY VW Volkswagen Touareg Mk3 Starter Motor 057911024
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BMW 1 3 Series F20 F21 F30 LCI B47 Wiring Loom Harness Engine Module 8490136
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BMW F30 F31 N57N 330d 258HP Diesel Engine ECU Kit DDE 8572439 FEM Key Automatic
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Battery Relay Mercedes W211 CLS W219 Module Control Unit 12V A0025426419
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Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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BMW X1 E81 E84 E87 E90 E91 Earth Cable Battery Cable 7795485
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Volkswagen VW Polo 6C 6R Parking Sensor Wiring Rear Bumper Loom Cable 6C0971065
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Mini One D R50 W17 Base B+ Battery Terminal Point Engine Compartment 7790996
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BMW F01 LCI F10 F30 Diesel N57N Engine Control Unit ECU DDE 8572439 Automatic
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Radio Player Renault Trafic III Vauxhall Vivaro B Audio Head Unit 8200585305
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Audi RS6 C7 Air Condition A/C Climate Control Module Unit 4G0919158M
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BMW F40 Bluetooth Module Multimedia Control Unit ECU 5A35119
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Audi Q5 FY Front Windscreen Windshield Lane Assist Camera 80A907217A
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Mercedes W205 MMI Multimedia CarPlay Android Retrofit Interface Kit GPBZ1901-5X
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BMW 5 6 Series E60 E61 LCI E63 E64 M5 M6 Earth Cable Starter Battery 7835548
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Starter Motor BMW E60 E61 E65 E53 E70 Petrol Engine N62N Starter 7536690
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Mercedes X253 Front Bumper Parking Sensor Wiring Loom Cable Harness A2535402400
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BMW 1 3 Series E81 E82 E84 E87 E88 E90 E91 E92 Power Distribution Box 6936653
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Fuse Box Vauxhall Vivaro B Renault Trafic III Relay Control Unit Module 93452999
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Audi Q5 8R Engine Noise Control Module Unit ECU 8R0907160
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BMW F30 F31 320i B48 ECU Kit Engine Control Unit DME 8676533 Keys FEM Manual
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Audi A1 8X HV Battery Cable Loom Harness Wiring Negative Terminal 7P0915181C
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Citroen Berlingo B9 1.6 HDI Diesel Engine Wiring Cable Harness 9673749980
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Audi A4 S4 B8 Q5 8R Front Right Door O/S Control Unit Module ECU 8K0959792P
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BMW 1 3 SERIES E87 E90 E91 Petrol N52 Wiring Loom Harness Engine Gearbox Manual
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Mercedes CL203 Head Unit CD Player Radio Audio Controller Unit A2039000000
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Steering Column Switch BMW E87 E81 E91 1 Cluster Cruise Control Stalk 9123042
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BMW F01 LCI 730d N57N Engine Control ECU Kit DDE 8577834 CAS4 Key Automatic
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Mini Cooper S R60 JCW ALL4 N18 218HP Engine Control ECU DME 8621260 Manual
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BMW G11 G12 G20 G21 G30 G31 F33 F36 Generator Alternator 180A Bosch 8571357
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Phone Adapter Mercedes W203 W211 Contact Plate Holder Telephone A2038201311
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Parktronic Wiring Mercedes W177 Front Bumper Parking Assist Harness A1775402729
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Mercedes W906 Radio Sat Nav Navigation System Head Unit Screen A9069000904
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Audi A4 B8 A5 8T Q5 8R Quattro Alternator Generator 2.0 TDI 03L903017
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Battery Box BMW G30 G31 Positive Fuse Battery Distribution Terminal Rear 6802943
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Mini Cooper R50 1.6 W10 116HP Engine ECU Kit DME + EWS + Key 7557395 Manual
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Mercedes X253 Ground Line Battery Earth Cable Wire A0005406904
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Mini R55 R56 R57 R60 Gearbox Module Control ECU Automatic Unit 7619713
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Mercedes W221 S350 BlueTEC OM642.862 Engine ECU Kit A6421508900 Key Ignition
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Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 9231320
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Hyundai H-1 Fuse Box Module Control Unit ECU 919504H071
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Air Bag Module BMW E65 E66 Control Unit ECU Gateway Airbag 9149934
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Audi Q7 4M Fuse Box Battery Terminal Cover Housing 4M0941828H
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Mini Cooper One R56 PL3 SPEG H2 High Fuse Distribution Box 3453738
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BMW i3 I01 Dashboard Central Information Display Screen Sat Nav 10,25" 6842991
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Skoda Octavia II Door Module Front Left N/S Door Control Unit 1K0959792J
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BMW X3 Series E83 M47N2 2.0d 150HP ECU Kit DDE + EWS3 + Key 7799855 Manual
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Mercedes CLK W209 Convertible Roof Top Control Unit Module ECU A2098204526
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Peugeot 3008 USB AUX Connector Interface Adapter Port Socket 96647952XT
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Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469004716
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Iveco Eurocargo F4AE0481 Engine Module ECU 4898111
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BMW E60 E61 E90 330d 530d M57N2 231HP Engine Control Unit ECU 7799856 Manual
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BMW E90 E91 E92 325d E60 E61 LCI 525d M57N2 Engine ECU DDE 8506951 Automatic
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BMW X3 X5 E39 E46 E53 E83 Mini R50 R52 Control Unit Control Unit EWS3 6905668
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VW Volkswagen Touran 1T Airbag Side Impact Crash Sensor Air Bag 5M0909606A
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530K
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BMW X1 E84 X5 E70 X6 E71 Z4 E89 CAS3 Control Unit Key Reading Module ECU 9227106
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Dodge Journey 1 Radio CD Player Audio Head Unit 05064952AC
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Mini Cooper One R55 High SPEG DC/DC H3 Fuse Distribution Box 3451927
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BMW F20 F30 F32 LCI 120i 320i 420i Petrol B48 184HP ECU DME Unit 8740343 Manual
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Mini R58 Door Module Harness Wiring Loom Cable Set Driver's Side 3456478
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Mercedes W118 W177 W206 W247 Air Quality NOX Sensor A0009054807
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Audi Q7 4L ECU Air Module Control Unit Crash Impact Sensor 4L0910655B
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BMW X6 E71 Rear Trunk Battery Cover Tray Storage Box 6981050
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BMW F01 F02 F06 F07 GT F12 F13 CAS4 Control Unit Key Reading Module 9347913
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PDC Wiring BMW E60 E61 Rear Bumper Loom Cables Set 6928366
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Audi Q5 R8 3.0 TDI CGQB Seat Heater Control Module Unit 8R0907333
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BMW X5 E70 LCI X6 E71 30dX N57 245HP ECU Kit DDE 8517015 CAS3 Key Automatic
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Audi Q5 8R 2.0 TDI Alternator Generator 14V 180A Valeo 03L903016A
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BMW F20 F21 F30 F31 F32 Body Comfort Module FEM ECU LR01 Control Unit 9366407
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Land Rover Freelander II Audio Amplifier Control Module 6H52-18C808-BD
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Part no. 7533651-6
BMW Z4 E85 2.5i M54 192HP ECU Engine Control Kit DME 7533651 + EWS3 + Key Manual
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Audi A4 S4 B8 Q5 8R Front Left Door N/S Control Unit Module ECU 8K0959793P
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Control Unit BMW E65 E66 E67 Door Front Passenger Side 6933263
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Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2038703594
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Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav GPS Unit High 9387565
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Headlight Module BMW F01 F02 LCI Xenon Headlamp Control Unit Lear TMS 7316218
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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 .