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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Part no. 04L907309B-2
Volkswagen Golf 7 1.6 TDI CLHA 105HP Engine ECU Kit 04L907309B Key + Ignition
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Part no. 5WA971230CM
Battery Cable VW Golf 8 Audi A3 8Y Starter Alternator Wiring Harness 5WA971230CM
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Part no. 5Q0907530L
Volkswagen Golf Mk7 Gateway Control Unit Module 5Q0907530L
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Part no. 5Q0937084S
Volkswagen Golf Mk7 BCM Body Control Module Unit ECU 5Q0937084S
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Part no. 1K0971349EM
Volkswagen VW Touran 1T Alternator Main Cable Wiring Harness Loom 1K0971349EM
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Part no. 028903028C
Volkswagen Golf Mk4 Alternator Generator BOSCH 14V 70A 028903028C
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Part no. 5K0937084J
Volkswagen Sharan 7N Fuse Box Module Comfort BCM Control Unit ECU 5K0937084J
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Part no. 1T0909605E
Volkswagen Touran 1T Air Module Control Unit ECU Module 1T0909605E
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Part no. 5Z0035152E
Volkswagen Fox 5Z Stereo Radio CD Player MP3 Head Unit 5Z0035152E
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Part no. 059903015R
Alternator Audi A6 C6 3.0 TDI Diesel Engine Generator 059903015R 1068673
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Part no. 5G6971829B
Volkswagen Golf CD1 Tailgate Trunk Lid Wiring Harness Rubber Cover 5G6971829B
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Part no. 3C8959760E
Volkswagen VW Passat B7 Driver's Seat Control Unit Module ECU 3C8959760E
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Part no. 3AA919475N
Volkswagen Passat B7 PDC Parking Assistant Module Control Unit 3AA919475N
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Part no. 03C907309E
Volkswagen Passat B7 CAXA 122HP ECU Engine Control Unit Automatic 03C907309E
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Part no. 3AA937087R
Volkswagen VW Passat B7 Module BCM Body Control Unit Module ECU 3AA937087R
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Part no. 7N0907530AN
Volkswagen Passat B7 Central Gateway Control Unit Module Relay ECU 7N0907530AN
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Part no. 1C0909605P
Volkswagen Fox 5Z Air Module Control Unit ECU Module 1C0909605K
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Part no. 03D906023Q
Volkswagen Fox 1.2 Petrol CHFB 55HP Engine Control ECU Manual 03D906023Q
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Part no. 03G971826A
VW Golf Mk5 Engine Wiring Loom Cable Harness Injector Module Diesel 03G971826A
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Part no. 03G906018FC-1
Volkswagen Golf 5 1K 2.0 TDI BMN 170HP Engine ECU Kit 03G906018FC 2 Key Ignition
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Part no. 1K0909605T
VW Volkswagen Golf Mk5 V 1K Air Module Control Unit ECU 1K0909605T
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Part no. 1K0953549BC
VW Volkswagen Golf 1K Steering Wheel Sensor Control Module Unit ECU 1K0953549BC
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Part no. 1K0907115F-1
Volkswagen Golf 5 GTI 1K 2.0 TFSI 200HP Engine Ecu Kit 1K0907115F Key Ignition
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Part no. 1K0959433AK
VW Golf Mk5 1K Body Control Comfort Unit Module Convenience Unit 1K0959433AK
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Part no. 1K0937124K
Volkswagen VW Golf 1K Mk5 Fuse Box Engine Compartment Relay Unit 1K0937124K
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Part no. 1K0953549BK
Volkswagen VW Golf Mk5 Steering Wheel Position Angle Control Unit 1K0953549BK
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Part no. 06F903023L
Alternator Volkswagen Transporter T5 2.0 TDI Diesel Engine 110A Bosch 06F903023L
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Part no. 03L903024F
Alternator Volkswagen VW Sharan 2.0 TDI Engine Alternator 180A Bosch 03L903024F
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Part no. 03E971612AD
Volkswagen Polo 6R Engine Wiring Loom Harness 03E971612AD
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Part no. 03E971612AN
Volkswagen Polo Mk5 6R 1.2 CGPB Engine Wiring Harness Cable 03E971612AN
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Part no. 03D903025J
Seat Ibiza Skoda Fabia Volkswagen Polo Mk5 6R 1.2 Petrol Alternator 03D903025J
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Part no. 1C0971235A
Volkswagen New Beetle Earth Ground Cable Negative Battery Lead Wiring 1C0971235A
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Part no. 02M911024C
Volkswagen Tiguan 5N Engine Starter Motor 02M911024C
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Part no. 5N0959655A
Volkswagen Tiguan 5N Air Module Control Unit ECU Module 5N0959655A
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Part no. 03L907309AE
VW Volkswagen Tiguan 2.0 TDI CFFB 140HP Engine Control Unit ECU 03L907309AE
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Part no. 5N0971100R
Sunroof Wiring Volkswagen VW Tiguan 5N Roof Motor Cable Harness 5N0971100R
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Part no. 2K0035279C
Volkswagen Tiguan 5N Sat Navi Stereo Radio Audio Head Unit CD Player 2K0035279C
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Part no. 5WA971244C
Audi A3 Q3 Volkswagen Golf 1.5 TSI Alternator Negative Cable Ground 5WA971244C
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Part no. 05E903018G
Volkswagen Golf CD1 Alternator Engine Generator Valeo 05E903018G
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Part no. 03C906024CN
VW Polo 6R 1.4 CGGB 85HP Engine Control Unit ECU Kit 03C906024CN Manual
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Part no. 0AM911023F
Volkswagen Polo 6R Engine Starter Motor Assembly Unit 0AM911023F
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Part no. 6R0971349Q
Battery Cable VW Polo 6R Positive Alternator Starter Wiring B+ 6R0971349Q
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Part no. 02A911023L
VW Volkswagen New Beetle 1.6 BFS Petrol Starter Generator Motor 02A911023L
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Part no. 03L972619BA
Volkswagen Golf MK6 Parking Sensor Wiring Rear Bumper Loom Cable 03L972619BA
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Part no. 02M911024Q
Volkswagen Golf VI Passat B6 Tiguan Starter Motor Diesel Engine 02M911024Q
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Part no. 04E907309AF
Volkswagen Polo 5 6R 1.2 TSI CJZC 90HP ECU Engine Control 04E907309AF
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Part no. 070911023C
Volkswagen Touareg Diesel Engine Starter Motor Actuator Starter 070911023C
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Part no. 5K0837202AD
Volkswagen VW Caddy Radio Remote Control Alarm Key Fob Control Unit Module
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Part no. 5H4971162MP
Volkswagen Golf CD1 Front Door Right O/S Loom Wiring Cable Harness 5H4971162MP
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Part no. 5WA035284F
VW Volkswagen Golf Mk8 Online Services Module Control Unit ECU 5WA035284F
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Part no. 5R3919294
Volkswagen Golf CD1 Park Parking Assist PDC Distance Control Module 5R3919294
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Part no. 5WA035741B
Volkswagen Golf CD1 Antenna Amplifier Transmitter Receiver Module ECU 5WA035741B
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Part no. 5NA980611A
Volkswagen Golf 8 CD1 Wireless Phone Charging Center Console Module 5NA980611A
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Part no. 5Q0803219C
Battery Clamp VW Golf 8 CD1 Audi A3 8Y Battery Base Bracket Holder 5Q0803219C
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Part no. 02T911023R
VW Polo 6R Seat Ibiza Mk4 Starter Motor Bosch 1.2 Petrol CGPB 02T911023R
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Part no. 5N0035342F
VW Volskwagen Polo 6R Multimedia Electronic Control Interface Module 5N0035342F
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Part no. 085911023JX
VW Volkswagen Polo 6N 1.4 APQ Petrol Starter Motor 085911023JX
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Part no. 7L6937049N
Volkswagen Touareg 7L Onboard Supply Comfort Unit Module Unit ECU 7L6937049M
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Part no. 3D0909139B
Volkswagen Touareg 7L Entry Module Keyless Go Control Unit ECU 3D0909139B
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Part no. 7L6035191R
VW Volkswagen Touareg 7L Radio Player Navigation Sat Nav Head Unit 7L6035191R
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Part no. 070906016BT-1
VW Volkswagen Touareg 2.5 TDI BPE Engine Control Unit ECU Kit 070906016BT Key
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Part no. 7H0907652
Volkswagen Touareg Yaw ESP Rate Sensor Module Unit Control ECU 7H0907652
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Part no. 3D0909601F
VW Volkswagen Touareg 7L Air Module Control Unit ECU SRS 3D0909601F
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Part no. 7L0959933H
VW Touareg 7L Body Control Comfort Unit Module STG Convenience ECU 7L0959933H
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Part no. 7L0919283F
Volkswagen Touareg PDC Parking Sensor Control Unit Module 7L0919283F
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Part no. 1J0035505A
Volkswagen Polo 6N Aerial Roof Antenna Base Antenna Unit 1J0035505A
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Part no. 7N0959792J
VW Volkswagen Sharan 7N Passenger's Side Door ECU Module Control Unit 7N0959792F
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Part no. 7N0035454A-1
VW Volkswagen Sharan Speaker Loudspeaker Front Door Left Right N/O/S 7N0035454A
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Part no. 7N0959794G
VW Volkswagen Sharan 7N Rear Left Right Door ECU Module Control Unit 7N0959794G
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Part no. 6R0971235C
VW Volkswagen Polo 6R Negative Battery Terminal Cable Wiring 6C0971235A
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Part no. 6R0971537F
VW Volkswagen Polo 6R Negative Battery Terminal Cable Wiring 6R0971537F
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Part no. 7N0959655C
Volkswagen Sharan 7N Air Module ECU Sensor Control Unit 7N0959655C
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Part no. 7N0906093
Fuel Pump Module VW Volkswagen Sharan 7N Fuel Sender Control Unit ECU 7N0906093
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Part no. 5K0937084H
Volkswagen Sharan 7N Fuse Box Module Comfort BCM Control Unit ECU 5K0937084H
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Part no. 7N0907530S
VW Volkswagen Sharan 7N Gateway Control Unit Module ECU 7N0907530S
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Part no. 03L906018HJ-1
VW Volkswagen Sharan 7N 2.0 TDI 140HP CFFB Engine ECU Kit 03L906018HJ Key Lock
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Part no. 02E911024CX
Volkswagen Sharan 7N Engine Starter Motor Lucas 02E911024CX
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Part no. 6R0937087P
Volkswagen Polo 6R Fuse Box Module Comfort BCM Body Control Unit ECU 6R0937087P
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Part no. 6R0919475C
VW Volkswagen Polo 6R PDC Parking Sensor Control Unit Module 6R0919475C
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Part no. 6R0959655K
VW Volkswagen Polo 6R Air Module Bag Control Unit 6R0959655K
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Part no. 1K0057186AN
Radio CD Player VW Volkswagen Caddy 2K Touran Head Unit 1K0057186AN
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Part no. 02M911024A
Volkswagen VW Golf VI Passat B6 Tiguan Starter Motor Diesel Engine 02M911024A
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Part no. 7N0907530AF
VW Tiguan 5N Central Gateway Control Unit Module Relay ECU 1K0907530S
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Part no. 2K5971557
Volkswagen Caddy Maxi Front Door Right O/S Electrical Wiring Harness 2K5971557
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Part no. 3C8937049AC-1
Volkswagen Tiguan 5N Module BCM Body Control Unit Module ECU 3C0937049E
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Part no. 1K0959433AR
Volkswagen TOURAN 1T Body Control Comfort Unit Module BCM Unit ECU 1K0959433AR
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Part no. 2H0959655B
VW Volkswagen Caddy Maxi Interior SRS Air Module Unit Control Sensor 2H0959655B
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Part no. 02Z911024K
VW Volkswagen Caddy Maxi 1.6 TDI Diesel Starter Motor 02Z911024K
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Part no. 1KO937125D
VW Volkswagen Caddy Maxi Fuse Box Control Unit Power Distribution 1KO937125D
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Part no. 1K0953549AF
VW TOURAN 1T Steering Angle Steering Wheel Column Control Module ECU 1K0953549AF
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Part no. 3C0907521
Heater Resistor Volkswagen VW Touran 1T Blower Motor Fan Resistor 3C0907521
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Part no. 02M911023N
Volkswagen Touran Engine Starter Motor 02M911023N
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Part no. 1K0907530F
Volkswagen Touran 1T Central Gateway Module Control Unit Lear 1K0907530F
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Part no. 028903028E
Alternator Volkswagen Crafter 2.0 TDI Engine Alternator 120A Bosch 028903028E
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Part no. 7E0971794A
Volkswagen Transporter T5 2.0 TDi CAAA Positive Battery Cable Wire 7E0971794A
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Part no. 074145169F
Volkswagen Transporter LT 35 2.5 TDI Alternator Bracket Vw 074145169F
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Part no. 074903025K
Alternator Volkswagen LT35 2.5 TDI Diesel Engine Alternator 90A Bosch 074903025K
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Part no. 03G906016HJ
Volkswagen Golf 5 2.0 TDI Engine Control Unit ECU Manual 03G906016HJ
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Part no. 3c0937125
Volkswagen VW Passat B6 Fuse Box Relay Electrical Module Unit 3C0937125
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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 .