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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Ford Transit MK7 2.2 TDCi Diesel Glow Plug Wiring Loom Cable BK2Q6M091AE
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Audi A6 C7 BCM Body Comfort Convenience Module Unit ECU 4H0907064CN
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Engine Wiring Mercedes W204 C207 W212 M271 Harness Loom Cable A2711500620
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Airbag Module Mercedes w176 Air Bag SRS Control Unit ECU A1179008600
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Volkswagen Golf Mk7 VII Engine Starter Motor Assembly Unit 0AM911023J
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Engine Harness BMW F20 F21 F30 F31 Petrol N13 Sensor Module 1 Wiring 7607975
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Audi A4 B8 Gateway Interface Control Unit Module ECU 8T0907468AD
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BMW X3 X5 Series E53 E83 PDC Parking Distance Control Unit Active Module 6942676
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BMW 5 6 Series E60 E61 E63 E64 Passenger Door Airbag Control Module N/S 6939710
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BMW X5 E53 Light Check Module Control Unit ECU Lear LCM III W / MAN. LWR 6905874
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BMW E60 E90 N52 325i 525i 218HP Engine ECU Kit DME 7555361 CAS2 Key Automatic
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VW Caddy 1.9 TDI BLS 105HP Engine Control Unit Module ECU 03G906021PD Manual
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Control Unit BMW F01 F10 F20 F21 F30 F87 Integrated Supply Module Unit 7591534
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BMW F33 F83 M4 Convertible Folding Top Roof ECU Module Control Unit CTM 9381020
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Audi A4 B8 B9 A6 C8 Engine Starter Motor Denso 2.0 TFSI Petrol 06Q911024
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Audi Q5 FY Rear Door Wiring Harness Loom Cable Left Right N/O/S 80A971687H
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Volkswagen Touareg 7L Power Supply Control Module Unit ECU 7L6937049AF
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BMW Z4 E85 2.0i N46 150HP Engine Control Unit ECU DME Manual 7565300
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Mercedes Sprinter W906 Engine Starter Motor Lucas LRT00134
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Opel Vivaro A Renault Trafic MK3 1.6 dCi Engine Alternator 185A 93461046
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BMW E60 E90 330i 530i N52 258HP ECU Kit DME 7553166 + CAS2 + Key Automatic
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Mercedes CL203 CLC 350 M272.960 272HP Engine Module ECU Kit A2721531291 2 Keys
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Mercedes W202 W208 Anti Theft Alarm Module Control Unit ECU A2028207426
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Telematics Control Unit BMW F20 F31 LCI F32 Module ATM ECE 4G WLAN 8734748
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Mini Cooper R55 R56 R57 Mitsubishi Engine Alternator Generator Petrol 7576921
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BMW 3 5 6 Series E60 M5 E64 M6 E90 E93 M3 Accelerating Sensor
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Mini Cooper R56 LCI ECU Footwell Light Module FRM3R LOW EKS Lear 3456034
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Mini One R50 R52 W10 1.6 90HP Engine Control Unit ECU Module 7557395 Automatic
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BMW 3 5 7 X5 Series E38 E39 E46 E53 GPS Navigation System Computer Unit 6908529
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BMW Z4 E89 Roadster 30i N52N 258HP Engine Control Unit ECU DME 7609656 Automatic
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BMW X3 F25 Sat Navi Radio CD Player Head Unit 9294196
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Oil Pump Control Audi Q7 4L Volkswagen Touareg 7P Module Unit ECU 7P0927601
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Mercedes W205 Air Module Control Unit SRS ECU A2059002141
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AdBlue Module BMW G20 G21 G30 G31 X3 G01 Control Unit ECU SCR 9423397
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Mercedes W203 Diesel Engine Starter Alternator Electrical Cable A2035402206
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BMW F20 F21 F22 F30 F31 LCI Head Unit Media DAB Navigation Professional 8804457
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Starter Motor Mercedes W639 W906 Diesel Engine A0009062302
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BMW E60 LCI E81 E90 E91 Petrol Alternator Generator Bosch 180A
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BMW 4 Series F33 F83 M4 Switch Folding Top Sliding Up Down Roof 9366374
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BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 Lear 9312602
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BMW 3 5 Series 4 E60 E90 Dashboard Dash Onboard Monitor Display Screen 8.8" CCC
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BMW 1 3 Series E87 LCI E90 120i 320i Petrol ECU Kit N43 DME 7579142 CAS3 Key
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Mercedes W204 CD Player Radio Stereo Navigation Sat Nav Head Unit A2049009410
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Mercedes W906 SAM Module Fuse Box Relay Control Unit Regulator A0009822223
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Mercedes ML W166 GLE C292 Engine Compartment Fuse Box Right A1665405202
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BMW E81 E87 E90 E91 LCI 118d 318d N47 Diesel ECU KIT DDE 8506375 CAS3 + 2 Keys
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Audi A1 8X Door Module Front Driver's Side Control Unit ECU 8X0959793H
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BMW 5 6 Series 1 E60 E61 E63 E64 Battery Cable Holder Mounting B Base 6932006
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Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman 8E5035223
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Mini Countryman F60 Audio Amplifier Hifi Unit Active Sound Design System 5A4E600
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Mini R50 R52 Alternator Generator 110A Benzin 7550997 7550319
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BMW 5 Series E61 Touring Body Control Module ECU Unit KBM High 9168835
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Head Unit Mercedes C205 Radio Player USB Sat Nav Harman A2059008430
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Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035785A
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Navigation Headunit BMW F20 F21 F30 F31 LCI Radio Sat Nav Unit 8705960
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BMW 1 2 Series F20 F21 F22 F23 Control Unit Module Active Sound Design 2622892
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Audi A6 C6 Body Control Comfort Unit Module BCM Unit ECU 4F0907289G
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Mercedes-Benz W169 W245 Alternator Generator Petrol 90A A2661540802
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Mercedes W204 SAM Fuse Prefuse Box Relay Control Unit A2045403850
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Audi A4 8K 2.0 TDI Diesel Engine Alternator Generator 04L903017E
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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 .