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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VW Volkswagen Audi Seat Skoda Glow Plug Relay Unit Black 505 7 Pins 6R0919433
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Mini R50 R52 Petrol W10 Compact Alternator Generator 105A 7515029
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On Board Monitor BMW E60 E63 Navigation Display Screen 6,5" 6952327
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BMW E60 E63 E64 Body Control Module ECU Control Unit 6969011
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Mercedes W204 C200 Fuse Box Front SAM Control Module Relay Box A2129008207
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BMW F22 F30 F32 220i 320i 420i Petrol N20 184HP ECU Kit DME 8631725 + Key + FEM
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BMW E90 E91 LCI N47N 320d 163HP Engine ECU KIT DDE 8510829 + CAS3 + Key Manual
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Engine Wiring Mercedes W212 Diesel OM651 Cable Loom Harness A6511505933
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Mercedes W221 Bluetooth Module Multimedia Control Unit ECU A2168206526
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BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9119495
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VW Volkswagen Touran TDI Diesel Engine Control Unit ECU 03G906021MP
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Audi Q7 4L Engine Starter Motor Actuator Starter 079911021D
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BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V2 REM 9298959
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Volkswagen Golf Mk5 V Body Control Comfort Unit Module 1K0959433AJ
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BMW E90 E91 325i E60 LCI 525i N53 218HP ECU Kit DME 7586940 CAS3 + Key Manual
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BMW E81 E87 E88 E90 E91 Radio Business CD Player 9202152
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BMW F10 F11 Rear Bumper PDC Wiring Loom Cable Harness F01 F12 9336380
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BMW 1 Series E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224589
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Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069006102
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Audi A4 B8 A5 8T 2.0 TDI Diesel Engine Starter Motor Assembly Unit 03L911024A
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BMW X5 E70 Footwell Light Control Module Unit LEAR PL4 FRM II 9176824
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Navigation Screen Mercedes W212 1 Head Unit Sat Nav Center Display A2129005000
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Mini Cooper R59 Footwell Light Module AHL EKS ECU LEAR PL3 FRM3R 3457033
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Mercedes Vito W639 Automatic Gearbox EGS Control Unit Module ECU A0015455716
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Skoda Fabia Mk2 5J Engine Alternator Generator Unit 14V 110A 06F903023D
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Mercedes ML W163 Windscreen Rain Light Sensor Control Module A1638201126
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Starter Mercedes W177 W247 C118 1.5 OM608 Diesel Starter Motor A6089060100
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BMW E81 E82 X1 E84 E87 E90 E91 Radio Stereo Business CD Player Head Unit 6959145
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BMW X5 E53 Receiver Heating Remote Control 6944104 70545B
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BMW X3 F25 Body Control Module ECU Junction Box JBBFE III V9 Lear 9247386
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BMW E60 LCI E63 CHAMP Business System Controller CD Player 9196760
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BMW F10 F11 F12 Central Gateway Module ECU Control Unit Lear ZGW-02 High 9267514
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Fuel Pump Module BMW F10 M5 F80 M3 Fuel Pump Control Unit 7398495
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BMW E65 E66 Sensor B-pillar Right O/S Air Module Crash Sensor 6970895
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Audi A6 C7 2.0 TDI SRS Air Module Control Unit Sensor ECU 4H0959655C
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Radio Head Unit Ford Transit Connect 6000 CD Media Player Unit AT1T-18C815-BA
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Audi Q7 4L Head Unit Radio Player Navigation Control Module Alpine 4L2035670J
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BMW F20 F21 F30 F31 LCI F32 F33 F34 Alternator Petrol Engine Unit 180A 8645325
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BMW F10 F20 F30 F31 Mini F55 F56 Front Heated Seat Control Module ECU 7490465
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BMW Z4 E85 E46 Hall Effect Switch Cable Microswitch 8236846
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Mercedes W167 W177 Radio Stereo Player Sat Nav Head Unit ECE A1679000511
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Mini Clubman R55 Fuse Box Relay Unit Module Control Unit 3455238
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Mercedes W212 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2128205313
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BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9229878
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Air Module Unit BMW E60 E61 Sensor Control ECU 6978374
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BMW Z4 E86 Coupe 3.0si N52 265HP ECU Kit DME 7571510 EWS + Key Manual
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BMW 5 Series E60 LCI Light Module Control Unit ECU Lear LM II E6X LWR 9192641
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Fuel Pump Control Audi A4 B9 A5 F5 A6 C8 Pump Unit Module ECU 4K0906121C
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Mini Cooper R56 LCI R60 N47N 122HP Diesel Engine ECU Kit DDE 8519663 CAS 3 Key
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BMW F30 F32 320d Engine Module Control Unit ECU DDE ed 420d N47N 163HP 8582279
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Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2049009701
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Audio Amplifier BMW F20 F21 Mini F55 F56 Top Hifi Harman Kardon Unit 9353990
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Seat Ateca Mk3 Headlight Module Headlamp Ballast Left Right N/O/S 7P5941591AH
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Central Information Display BMW F20 F21 F22 F23 Screen 6,5" 9322122
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Mercedes W166 Head Roof Curtain Right O/S Side Air Module A1668600602
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Audi A3 8Y LED Headlight Headlamp Ballast Control Module 4K0941572CS
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BMW X5 E70 Front Bumper PDC Wiring Loom Cable Harness 6970675
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Mercedes W204 Head Unit Radio CD Player Audio Sat Nav Control A2049001813
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Ford Transit Custom Mk8 Rear View Reversing Top Camera Unit KK3J-19J226-BA
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BMW E90 Light Module Xenon Footwell Control Unit Module ECU PL2 FRM II 9153779
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Audi A4 B7 4.2 BBK Petrol Engine Alternator Generator 079903021E
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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 .