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. 6C0907359A
Volkswagen Polo 6C Air Suspension Module Regulation Control Unit 6C0907359A
£18.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 6R0959655C
VW Volkswagen Polo 6R Air Module Control Unit 6R0959655C
£13.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8Y0963554B
Volkswagen Golf 8 Rear Seat Couch Occupancy Sensor Unit 8Y0963554B
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 6C0971065
Volkswagen VW Polo 6C 6R Parking Sensor Wiring Rear Bumper Loom Cable 6C0971065
Promo price
£28.95
£17.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1Y0951177
VW Volkswagen New Beetle Alarm Motion Detector Sensor Module Unit 1Y0951177
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 5G0919605
VW Volkswagen Golf Mk7 Radio Control Head Unit CD Player 5G0919605
Promo price
£47.95
£40.76
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7M0951253C-1
VW Volkswagen T5 Audi Seat Skoda Relay Black Control Unit 5 Pin 12V 7M0951253C
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 038907281D
Genuine VW Audi Seat Skoda Diesel Glow Plug Relay Unit Black 9 Pins 038907281D
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 06J903023D
Audi Volkswagen Seat Skoda Petrol Alternator Generator 14V 140A 06J903023D
Promo price
£47.95
£28.77
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 3C0035711A
VW Volkswagen Passat B7 Hands Free Microfon Cable Wiring 3C0035711A
£13.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 03L907309AE-1
Volkswagen Passat B7 2.0 TDI CFGC 177HP Engine Control ECU 03L907309AE Automatic
£32.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 3D0909601E
VW Volkswagen Touareg 7L Air Module Control Unit ECU SRS 3D0909601E
£13.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 03E906023AL-1
Volkswagen Polo 6R 1.2 MPI CGPA 70HP Engine ECU Kit 03E906023AL SME RBG + Key
£75.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 5WA959663A
Volkswagen Golf 8 1.5 eTSI Engine DFYA Voltage Converter Module 5WA959663A
Promo price
£189.95
£113.97
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 5Q0959593L
VW Golf CD1 Front Door Right O/S Driver Side Module Control Unit ECU 5Q0959593L
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 3AA937087Q
Volkswagen VW Passat B7 Module BCM Body Control Unit Module ECU 3AA937087Q
£47.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7N0959792J
VW Volkswagen Sharan 7N Passenger's Side Door ECU Module Control Unit 7N0959792F
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 1K0937085
VW Golf MK6 Body Control Comfort Unit Module BCM 1K0937085
£23.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 3Q0907530L
VW Volkswagen Golf SV Gateway Control Unit Module ECU GW MQB High 3Q0907530L
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1J0919506M
Volkswagen Skoda Seat Audi Radiator Cooling Fan Relay Control Unit 1J0919506M
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 3C8035195H-1
Volkswagen Beetle Golf Mk5 Radio Stereo Head Unit 3C8035195H
Promo price
£85.95
£73.06
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 03E906019M-1
Volkswagen Polo 6R 1.2 Petrol CGPB 60HP Engine ECU Kit 03E906019M BCM + Key
£113.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 03L906022CB
VW Transporter T5 2.0 TDI Diesel CAAA Engine ECU Kit BCM 03L906022CB Lock + Key
Promo price
£759.95
£455.97
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 0AD927755AB
VW Volkswagen Touareg 7L Transfer Box Control Module ECU Automatic 0AD927755AB
£13.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 09D927750BN
VW Volkswagen Touareg 7L Automatic Transmission Module Control Unit 09D927750BN
£42.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 7N0907530AS
VW Volkswagen Passat B7 Gateway Control Module Unit ECU 7N0907530AS
£70.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 7N0035454A
VW Volkswagen Sharan Front Door Left Right N/O/S Speaker Loudspeaker 7N0035454A
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 03E906019AH
VW Volkswagen Polo 6R 1.2 MPI CGPA 69HP Engine ECU Kit 03E906019AH Manual
Promo price
£94.95
£80.71
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 3D0951253A
VW Volkswagen Audi Seat Skoda Relay Black 5 Pins 12V 50A Set 433 3D0951253A
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4H0955557
Volkswagen VW Polo 6R 5 Audi A6 C7 Air Module Crash Impact Sensor 4H0955557
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7L0959655
Volkswagen Touareg 7L Air Module Control Unit Crash Impact Sensor 7L0959655
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4H0951253A
Seat Skoda Audi VW Polo 6R Multi Use Control Module Relay 4 Pin 645 4H0951253A
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4H0951253C
Seat Skoda Audi VW Polo 6R Multi Use Control Module Relay 4 Pin 646 4H0951253C
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 5WA959354
VW Volkswagen Golf Mk8 Air Module Control Unit Crash Impact Sensor 5WA959354
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 04L907309A-2
Volkswagen Golf VII 2.0 TDI 135HP CUNA Engine Control ECU Kit 04L907309A Manual
£237.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 5K0907159
Volkswagen Golf Mk5 Alarm Signal Sound Impact Body Control Module Unit 5K0907159
£13.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1T0971235A
Volkswagen Golf MK5 6 Audi A3 8P Negative Battery Terminal Cable 1T0971235A
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 03C972619CG
VW Passat B7 Engine Wiring Loom Cable Harness Injector Module Petrol 03C972619CG
Promo price
£94.95
£56.97
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 7L0909606D
Volkswagen Touareg 7L Front Impact Crash Sensor Right Left N/O/S 7L0909606D
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1K0951253
VW Volkswagen Audi Seat Relay 449 Unit Module 4 Pins 1K0951253
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1K0955557A
VW Volkswagen Audi Seat Skoda Airbag Crash Impact Sensor SRC 1K0955557A
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A9068200686
Volkswagen Crafter Radio Stereo Sat Nav Display Screen Head Unit A9068200686
Promo price
£237.95
£142.77
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 0AD927755AR
VW Volkswagen Touareg 7L Transfer Case Box Control Unit Module ECU 0AD927755AR
£23.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 03C906016BA
Volkswagen Scirocco Mk3 1.4 TSI CAXA 122HP Engine Control ECU 03C906016BA Manual
£85.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. RHD-5H2971641S
Volkswagen Golf 8 CD1 Centre Console Wiring Harness Cable Loom 5H2971641S
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1K0959433AJ
Volkswagen Golf Mk5 V Body Control Comfort Unit Module 1K0959433AJ
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 3C0907521
Heater Resistor Volkswagen VW Touran 1T Blower Motor Fan Resistor 3C0907521
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 1K0907655D
VW Touran 1T Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655D
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5N0035341B
Volkswagen Golf 5 Multimedia Interface Module Box 5N0035341B
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 7L0959933F
Volkswagen Touareg 7L Body Comfort Module Control Unit ECU 7L0959933F
£23.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 5Q0937086BQ
Volkswagen Golf Sportsvan Body Control Comfort Unit Module BCM Unit 5Q0937086BQ
£28.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 5N0959655Q
VW Volkswagen Tiguan 5N Air Module Control Unit ECU SRS 5N0959655Q
Promo price
£70.95
£42.57
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 3D0919473
Volkswagen Touareg 7L PDC Parking Aid System Display Panel Unit 3D0919473
£13.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 2G0941476
Volkswagen Polo Mk6 Headlight LED Control Module Headlamp Adjust Unit 2G0941476
£37.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. RHD-1K8971120S
Volkswagen VW Scirocco Mk3 Driver's Door Wiring Harness Loom Cable 1K8971120S
£28.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 2G0941479A
Volkswagen Polo Mk6 Headlight Headlamp LED Control Module Right O/S 2G0941479A
£37.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1H0953227
Audi Seat Volkswagen Polo 6N Flasher Relay 1H0953227
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 5H0963554
Volkswagen Golf 8 Rear Seat Couch Occupancy Sensor Unit 5H0963554
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 5H0971385F
Volkswagen Golf Mk8 CD1 Rear Seat Couch Wiring Harness Cable Loom 5H0971385F
Promo price
£56.95
£34.17
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 5WA971226B
Volkswagen Golf Mk8 1.5 eTSI Engine Voltage Converter Cable Wiring 5WA971226B
Promo price
£47.95
£28.77
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5N0959655AA
Volkswagen Tiguan 5N Air Module Crash Control Module Unit ECU 5N0959655A
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6R4971693C
VW Volkswagen Polo 6R Rear Door Wiring Left Right N/O/S Harness Cable 6R4971693C
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. RHD-6R2971121JE
VW Volkswagen Polo 6R Passenger's Side Door Wiring Harness Loom 6R2971121JD
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 02Z911024H
Volkswagen Passat B7 Starter Motor Actuator TDI Diesel Engine 02Z911024H
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 141951253B-2
VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 141951253B
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5M0035724
Volkswagen VW Golf Mk6 1K Aux Socket Port Switch 5M0035724
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 038971803
Volkswagen VW Caddy 2K Injector Wiring Harness Loom 038971803
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 5N0035342B
VW Volkswagen Touran Golf Polo Interface Module Multimedia Control 5N0035342B
£13.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 03E971612AE
Volkswagen Polo 6R Mk5 Engine Wiring Loom Harness Cable 03E971612AE
£118.95
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 070906016BL
VW Volkswagen Touareg 2.5 TDI BAC Engine Control Unit ECU 070906016BL Automatic
£75.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 191906383C-1
Audi VW Volkswagen Seat Relay Unit Module 4 Pins 191906383C
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 1K0951605C
VW Volkswagen Golf Audi Seat Alarm System Siren Anti-Theft Signal 1K0951605C
£18.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. RHD-5Q2971111R
VW Volkswagen Golf Mk7 Steering Rack Power Steering Box Gear Pinion 5Q2971111R
£23.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 7L0915457
VW Volkswagen Touareg 7L Battery Overload Protection Relay 7L0915457
£18.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 6R0971349AL
VW Polo 6R Battery Cable Positive Alternator Starter Wiring B+ 6R0971349AL
Promo price
£23.95
£20.36
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6R0919433
VW Volkswagen Audi Seat Skoda Glow Plug Relay Unit Black 505 7 Pins 6R0919433
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 000915089AC
Volkswagen Seat Skoda Audi Car Battery 12V 70Ah 700A 000915089AC
Promo price
£113.95
£96.86
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 2Q0915343C
Volkswagen Polo Mk6 AW Battery Tray Power Distribution Unit 2Q0915343C
£28.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 5WA937086BT
VW Volkswagen Golf CD1 Module BCM Body Control Unit Module ECU 5WA937086BS
Promo price
£151.95
£91.17
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5K0959655
Volkswagen VW Golf Mk6 1K Air Module Control Unit ECU 5K0959655
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 070911023B
Volkswagen Touareg 7L 2.5 TDI Engine Starter Motor Actuator Starter 070911023B
£47.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 5M035570B
Volkswagen Golf Mk6 1K Antenna Amplifier Control Unit 5M035570B
Promo price
£23.95
£20.36
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 022906032GA-1
Volkswagen Touareg 7L 3.2 BMV 220HP Engine Control ECU Kit 022906032GA Manual
£474.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 5G0971095E
VW Volkswagen Golf Mk7 Wiring Loom PDC Front Harness Parking Sensor 5G0971095E
£23.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 2Q0915181A
Volkswagen Polo VI GTI Negative Battery Terminal Cable Lead 2Q0915181A
£28.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 2G0907159C
VW Volkswagen Polo Mk6 Body Sound Control Unit Module ECU 4K0907159
£37.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5Q0951605B
Audi Seat Skoda Volkswagen Golf Mk8 Anti Theft Alarm Siren 5Q0951605B
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 02Z911023E
Volkswagen New Beetle 1.4 TSI Petrol Engine Starter Motor 02Z911023E
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 5N1971121G
Volkswagen Tiguan 5N Door Wiring Front Passenger Side Cable Harness 5N1971121G
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 5H9971694AC
VW Volkswagen Golf Mk8 Door Cable Rear Right O/S Harness Wiring Loom 5H9971694AC
Promo price
£47.95
£28.77
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7N0880742
Volkswagen Sharan 7N Head Air Module Roof Side Curtain Right O/S 7N0880742
Promo price
£32.95
£28.01
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 5Q0959593F
Volkswagen Golf Mk8 Door Module Front Right O/S ECU Control Unit 5Q0959593F
£13.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. RHD-5G4971121MT
Volkswagen Golf Mk7 VII Front Right O/S Door Loom Wiring Harness 5G4971121MT
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 0AM911022C
Volkswagen Golf Mk8 Engine Starter Motor Assembly Unit 0AM911022C
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 3C0907376
Volkswagen VW Golf Mk6 1K Electric Damping Control Module 3C0907376
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 7L6971073F
VW Volkswagen Touareg 7L Front Frame Panel Wiring Harness Cable 7L6971073F
£18.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 04L907309B
Volkswagen Golf Mk7 1.6 TDI CLHA Engine Control Unit ECU 04L907309B Manual
Promo price
£56.95
£48.41
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 5K0937084B
Volkswagen Scirocco Mk3 Fuse Box Module Comfort BCM Control Unit ECU 5K0937084B
£18.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 3A0972695
VW Volkwagen Audi Seat Skoda Cable Loom Wiring Connector Plug Socket 3A0972695
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
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 .