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 A5 8T Headlight Headlamp Module Control Unit 8K0907357
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VW Golf Mk5 1K Body Control Comfort Unit Module Convenience Unit 1K0959433AK
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Ford Transit Engine Starter Motor Actuator Starter CC1T14000AB
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Volkswagen Audi Skoda Audi 1.6 TDI Diesel Engine Starter Motor 0AM911023M
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Mercedes Vito W447 114 CDI 136HP 651.950 Engine Unit ECU A6519002803 Automatic
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Mercedes Vito W447 Fuse Relay Box Control Module A4475404326
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VW Volkswagen Audi Seat Skoda Glow Plug Relay Unit Black 511 9 Pins 04L907282
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Audi A3 8V Module BCM Body Control Unit Module ECU 5Q0937084AA
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Audi A3 8V Heater Blower Motor Fan Resistor 5Q0907521D
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Audi A3 8V 1.6 TDI Fuel Pump Sender Control Relay Module Unit ECU 5Q0906121G
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Audi A3 8V Gateway Module Control ECU Unit 5Q0907530M
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Audi A3 8V Multimedia Radio Sat Nav CD Player Head Unit 8V0035874B
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Alternator Volkswagen Transporter T5 2.0 TDI Diesel Engine 110A Bosch 06F903023L
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Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273H
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Alternator Mercedes W212 W447 X253 C238 Petrol M274 150A Bosch A0009060922
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Audi A3 8V 1.6 TDI CLHA 105HP Engine Unit ECU Kit 04L907309B Key Ignition
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Alternator Generator BMW X5 E53 E60 E61 E63 E65 N62 Petrol Engine 180A 7540992
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BMW E61 LCI Body Gateway Module KGM HIGH 27 D-Can LEAR 9197317
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Alternator Volkswagen VW Sharan 2.0 TDI Engine Alternator 180A Bosch 03L903024F
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Mercedes C209 CLK200 M271.955 184HP Engine ECU Kit Ignition A2711535491 Lock Key
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Navigation System BMW E90 E91 E92 Professional CCC Sat Nav Controller 9150961
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Volkswagen Polo 6R Engine Wiring Loom Harness 03E971612AD
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Navigation Head Unit BMW F10 F20 F21 F30 F31 Media Player High 9311035
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Mercedes W166 Hatch Tailgate Central Module Locking Control ECU A1669003708
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BMW E87 LCI E90 Petrol N43 DME Engine Control Unit 7583225 Automatic
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BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6872837
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Volkswagen Polo Mk5 6R 1.2 CGPB Engine Wiring Harness Cable 03E971612AN
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Seat Ibiza Skoda Fabia Volkswagen Polo Mk5 6R 1.2 Petrol Alternator 03D903025J
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BMW X3 E83 Telematics Bluetooth Control Unit Module Computer 9207074
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Volkswagen New Beetle Earth Ground Cable Negative Battery Lead Wiring 1C0971235A
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Mercedes W176 W246 Relay Current 4 Pin 12V Hella A0025428819 Set x2
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BMW F30 Fuse Box Relay Control Unit Module 9314235
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BMW X1 E84 Radio Stereo CD Player Navigation Nav Head Unit 9283247
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Xenon Adaptive Headlight Module BMW F22 F23 Control Unit Driver Module 7363090
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Mercedes W221 Door Control Module Unit ECU Front Right O/S A2219008603
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Mercedes ML W166 Door Control Module Unit ECU Front Right O/S A1669007609
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Mercedes W164 ML 280 CDI 642.940 190HP Engine Unit ECU Kit A6421509678 Key Lock
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Mercedes W164 Front Fuse Box SAM Relay Control Unit Module A1645402401
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Renault Trafic II Opel Vivaro A 1.9 DCI Alternator Generator 8200086130
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Mercedes ML W166 Head Unit Radio Player Sat Nav Tel SD Card Unit A1669009808
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Steering Wheel Angle Mercedes C216 W221 Sensor Control Unit Module A2219004003
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Volkswagen Tiguan 5N Engine Starter Motor 02M911024C
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Volkswagen Tiguan 5N Air Module Control Unit ECU Module 5N0959655A
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VW Volkswagen Tiguan 2.0 TDI CFFB 140HP Engine Control Unit ECU 03L907309AE
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CD Player BMW E81 E82 E87 E88 E90 E91 E92 Radio Professional Head Unit 9258167
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Sunroof Wiring Volkswagen VW Tiguan 5N Roof Motor Cable Harness 5N0971100R
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Volkswagen Tiguan 5N Sat Navi Stereo Radio Audio Head Unit CD Player 2K0035279C
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Mercedes W212 Engine Alternator Generator A0009062100
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BMW E93 Xenon Footwell Light Module Control Unit ECU FRMFA 9133281
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Mercedes W251 R320 CDI OM642 4Matic Engine Unit ECU KIT A6519002803 Key Lock
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Audi A3 Q3 Volkswagen Golf 1.5 TSI Alternator Negative Cable Ground 5WA971244C
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Volkswagen Golf CD1 Alternator Engine Generator Valeo 05E903018G
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Mercedes W205 C253 Door Module Rear Left N/S Control Unit ECU A2229001912
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Switch Sensor Cable Mercedes W205 W212 Rear Bumper Module A2229058804
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Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204126
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BMW X3 E83 LCI 2.0d N47 177HP Engine Control Unit ECU DDE 7811111 Manual
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Audi TT 8J Front Left N/S Door Wiring Harness Cable Lom 8J0971030AE 8J0971030AB
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Audi TT 8J Driver's Side Door Wiring Harness Loom 8J0971029AD
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VW Polo 6R 1.4 CGGB 85HP Engine Control Unit ECU Kit 03C906024CN Manual
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Volkswagen Polo 6R Engine Starter Motor Assembly Unit 0AM911023F
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Battery Cable VW Polo 6R Positive Alternator Starter Wiring B+ 6R0971349Q
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Audi TT 8J Speaker Loudspeaker Front Door Left Right N/O/S 4F0035411E
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Mercedes W140 Electric Seat Adjustment Control Unit Module ECU A1408205126
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Audi TT Mk2 8J Petrol Engine Fuel Pump Control Unit Module 3C0906093C
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Audi TT 8J Gateway Control Unit Module 7N0907530AL
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Mercedes W140 ABS Control Unit ASR + PML Module ECU A0185459132
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BMW F30 LCI B48X 330e Hybrid Electric High Voltage Battery 8677631
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BMW F87 LCI M2 Competition S55 411HP Engine Control Unit ECU DME 9798427
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Body Module BMW X3 F25 X4 F26 Control Unit Junction Box JBBFE 3 9384222
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Mercedes W140 Seat Memory Control Unit Module Front Left N/S A1408201426
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Mercedes W140 Head Unit Radio Player Control Module Becker A0038208286
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Mercedes W140 Seat Heated Heating Control Unit Module ECU A1408201526
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VW Volkswagen New Beetle 1.6 BFS Petrol Starter Generator Motor 02A911023L
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Alternator Generator Mercedes W203 W204 M271 Engine Valeo 120A 14V A2711541402
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Volkswagen Golf MK6 Parking Sensor Wiring Rear Bumper Loom Cable 03L972619BA
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Mercedes C140 Seat Belt Module Control Unit ECU A1408202526
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Mercedes C140 W210 Multifunctional Purpose Relay Fuse Unit Module A0015427419
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Mercedes C140 Headlight Module Ballast Relay Control Unit LCM A1405420732
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BMW E81 E82 E83 E84 E85 E87 E90 Petrol Denso Starter Motor 7524843
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Mercedes C140 Body Control Comfort Unit Module BCM Unit ECU A0185458332
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Mercedes C140 W202 Engine Cooling Radiator Fan Control Unit Module A0165459632
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Mercedes C140 Gearbox Module Transmission Basic Control Unit A0175450632
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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 .