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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Volkswagen Seat Skoda Audi Gateway Control Unit Module ECU 5Q0907530AF
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Volkswagen New Beetle Convertible Roof Control Module Control Unit 1Y0959255C
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Mini F55 F56 Central Cover Information Instrument Radio 8,8" 9367675
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Mercedes Sprinter W906 OM646 Engine Diesel Alternator Generator A6461540002
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Mercedes W221 Front Door Control Left N/S Module Unit ECU A2219007301
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Skoda Octavia 5E MMI Multimedia Interface Unit Module Control ECU 5E0035842A
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VW Volkswagen Touran 1T 1.2 TFSI CBZB Starter Motor 0AH911023A
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Front Crash Impact Audi A4 B9 A5 F5 Air Module Sensor Unit 4M0959651
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BMW 7 Series E65 E66 Driver's Seat Airbag Sensor Control Unit Module
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BMW F80 M3 F82 M4 LCI Cable Wheel Acceleration Sensor 7850609
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Audi Q7 4M Alternator Mass Cable Wiring Harness Loom 4M0971228CH
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Volkswagen New Beetle 1.4 TSI Petrol Engine Starter Motor 02Z911023E
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Sam Module Mercedes ML W164 Rear Relay Box Control SAM Unit A1649004400
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Starter BMW E60 520d M57N2 Diesel Engine Starter Motor 7796892
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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 E91 ECU Body Control Module H4 Electronic Box 61359177987 9177987
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Radar Sensor Mercedes W204 C117 Rear Blind Spot Right left N/O/S A0009053303
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BMW 3 Series E46 Petrol Wiring Loom Harness Engine Gearbox Module 7512079
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Mercedes E CLS Class W211 W219 Bracket Anti Tow Away Sensor Bracket A2118220114
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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 Kit Module DDE 7794650
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BMW F20 F21 F30 116d 120d 316d 320d N47N Wiring Harness Engine Module 8586141
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BMW F30 Fuse Box Relay Control Unit Module 9314235
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Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129005722
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Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BC
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Volkswagen Golf Mk5 2.0 TFSI Petrol Alternator Generator 06F903023HX
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BMW E90 E91 E92 335i 306HP Engine N54 ECU Kit DME 7575875 + CAS3 + Key Automatic
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Audi A8 4E S8 D3 Comfort Module Electric Steering Column Unit 4E0907279S
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BMW 1 Series E87 1 ECU Body Control Module Junction Box H2 PL2 JBBFE II 9160189
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Comfort Module Audi A6 S6 RS6 C6 4F Convienience Unit ECU 4F0910289N
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BMW X3 X5 E53 E83 M57N2 Alternator Generator Diesel Power 150A 7797661
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Mercedes R172 BlueEFFICIENCY 271.861 184HP Engine ECU Kit A2711500391 Key + Lock
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Volkswagen VW Golf Mk7 Negative Battery Terminal Cable Wiring 5Q0915181G
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Renault Trafic III Opel Vivaro B Air Module Control Unit ECU 93868139 985101902R
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FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9348361
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Volkswagen Golf Sportsvan 1.5 TSI Alternator Valeo 14V 140A 04C903021A
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Mini R57 LCI R59 Convertible Airbag ECU Control Unit Module 9809353
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Mini Cooper One R55 R56 R57 LCI R60 R61 CHAMP 2 Navigation DAB 9299558
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Mercedes W213 C238 Petrol Alternator Generator A0009060205
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Mercedes SLK R171 Center Console Arm Rest Wiring Loom Harness A1715409333
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Head Unit BMW F20 F21 F22 F30 F31 Radio CD Navigation GPS 6840399
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BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME 7568842 CAS3 Key Automatic
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Mercedes Vito W447 Head Unit Radio DAB Navigation GPS Nav Display A4479005517
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Starter Mercedes W204 C238 W213 W447 Diesel OM654 Starter Motor A6549061500
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BMW F07 F10 F11 N47N Diesel Alternator Generator Engine 220A Valeo 8507625
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Sam Unit Mercedes S203 W203 Rear Module Fuse Box A2095450701
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BMW F20 F21 F30 F31 LCI F32 F33 F34 Alternator Generator Unit 14V 190A 8645326
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Engine Wiring Renault Trafic 2 Loom Module Harness Cable 275850906R
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Mini One R55 R56 R57 LCI N16 1.6 Petrol Engine ECU Kit DME 7615981 + CAS 3 + Key
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Mercedes A209 Fuse Box SAM Control Module Relay Box A2095451701
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BMW E90 E91 LCI 318d N47N 143HP ECU Kit DDE 8507202 CAS3 Key Manual
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Mercedes C204 Wiring Cable Harness Front Driver Door Wiring Loom A2044400538
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Battery Cable VW Polo 6R Positive Alternator Starter Wiring B+ 6R0971349Q
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Audi A5 8T Headlight Headlamp Module Control Unit 8K0907357
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BMW E60 E87 E90 LCI 120d 320d 520d N47 Engine ECU Kit DDE 7807530 CAS 3 + 2 Keys
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Mercedes W177 W247 Driver's Seat Heating Control Unit Module ECU A1679000500
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BMW F20 F21 F30 F31 Petrol N20 Electrical Fuse Box Cover Lid Panel 8616568
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BMW E87 LCI E90 E91 120i 320i Petrol N43 170HP ECU KIT DME 7599881 CAS3 + 2 Keys
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BMW E53 4.4i M62 286HP Engine ECU Kit DME 7508698 + EWS3 + Key Automatic
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8510221 CAS3 + Key
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Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel
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Audi A4 B9 A5 F5 Steering Column Lock Mechanism Control Unit 3Q0905861C
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BMW X3 E83 LCi Rear Door Window Lifter Left N/S 6925965
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BMW Mini Cooper S R55 R56 R57 N14 1.6 ECU Basic Control Unit DME 7584113 Manual
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Audi A6 C6 Adaptive Suspension Software Module Control Unit ECU 4F0910553D
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Yaw Sensor Mercedes W211 W219 ESP Rotation Rate Control Unit Module A0055422718
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BMW 5 Series F07 F10 F11 CAS4 Control Unit Key Reading Module 9257038 6809374
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Volkswagen Golf 5 2.0 TDI Engine Control Unit ECU Manual 03G906016HJ
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Mercedes CLA C117 Head Unit Sat Nav Navigation Display Screen UB2305000334
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BMW E60 X3 E83 E87 E90 Unit Glow Plug Module Diesel M47N2 7786821
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Engine Control Unit Opel Combo 2.0 DTI Diesel Control Module ECU ECM 8973583764
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MINI Cooper S R52 R53 W11 170HP Engine Control Unit ECU DME 7557395 Automatic
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Radio CD BMW E81 E87 E90 E91 E92 LCI Professional DAB 9243925
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Mercedes W447 Door Module Front Left Control Unit A4479007906
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VW Volkswagen Touareg 2.5 TDI BPE Engine Control Unit ECU Kit 070906016BT Key
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Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
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Volkswagen Touareg Diesel Engine Starter Motor Actuator Starter 070911023C
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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 .