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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Make
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Subcategory
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In Stock
Price
-40%
Part no. 8V0971104
Audi A3 S3 8V Sportback Wiring Harness PDC Parking Sensor Rear Bumper 8V0971104
Promo price
£32.95
£19.77
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 80A035502A
Audi Q5 FY Wireless Charger Centre Console Phone Charging Module Unit 80A035502A
Promo price
£142.95
£85.77
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8K0907064KG
Audi Q5 8R Body Control Module ECU Control Unit 8K0907064KG
Promo price
£37.95
£22.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 06D911023A
Audi A4 B8 2.0 TFSi Petrol Engine Starter Motor Actuator Unit 06D911023A
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 5Q0937084DG
Audi S3 8V BCM Body Control Module Unit ECU 5Q0937084DG
Promo price
£37.95
£22.77
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4F0959792E
Audi A6 C6 Front Passenger Side Door Left N/S Module Unit Control ECU 4F0959792E
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8P0035785
Audi A3 8P MMI Multimedia Interface Unit Module Control ECU 8P0035785
Promo price
£37.95
£22.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8T0919603G
Audi A5 8T Display Screen Radio Multimedia Navigation Display 8T0919603G
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4H4907357E
Audi A6 C7 Front Lamp Headlight Control Module Unit ECU Controller 4H4907357E
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4H0035670T
Audi A8 D4 Reader Radio CD System Audio MMI Multimedia Head Unit 4H0035670T
Promo price
£332.95
£283.01
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8T0035223AP
Audi A4 S4 B8 Audio Amplifier Sound Booster Control Unit Module 8T0035223AP
Promo price
£142.95
£85.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8P0035785-1
Audi A3 8P Multimedia Interface Unit Module Bracket Mount 8P0035785
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8W0959592H
Audi A4 B9 A5 F5 Front Door Module Control Unit ECU Passenger Side 8W0959592H
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 3Q0907338E
Audi S3 8V Front Headlight Lamp Range Control Module ECU 3Q0907338E
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 5WA959655J
Audi S3 8Y Air Module Control Unit SRS System ECU 5WA959655J
Promo price
£47.95
£28.77
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 7H0907652A
Audi Q7 4L Yaw Rate Speed Sensor Module 7H0907652A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8W0959593N
Audi A4 B9 Front Door Module Control Unit ECU Driver's Side 8W0959593N
Promo price
£32.95
£19.77
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8T0035785A-1
Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035785A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 04L907309AB-4
Audi Q3 8U 2.0 TDI DFTA 150HP Quattro Engine Control ECU 04L907309AB Manual
£37.95
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4H0915181F
Audi A8L 4H Negative Battery Cable Lead 4H0915181F
Promo price
£70.95
£60.31
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8K1907115C
Audi A4 B8 1.8 TFSI CDHA 160HP Engine Control Unit ECU Kit 8K1907115C Manual
Promo price
£104.95
£89.21
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 059971627D
Audi A6 C7 High Pressure Pump Fuel Line Electrical Wiring Harness 059971627D
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4G0907637L
Audi RS6 C7 Acceleration Yaw Rate Sensor Module Control Unit ECU 4G0907637L
Promo price
£32.95
£19.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8X0959673A
Audi A1 8X Heated Seat Windscreen Heating Traction Control Switch 8X0959673A
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0959795F
Audi Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795F
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8V0863051
Audi A3 8V AMP Amplifier Under Seat Cover Trim Panel Unit 8V0863051
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4H0907401-1
Audi A8 4H 3.0 TDI CDTA 250HP Quattro Engine ECU Kit 4H0907401 BCM + Key + Lock
Promo price
£313.95
£188.37
Free delivery: Mar 2 – 9
If paid before 14:00
-40%
Part no. 8K5907115
Audi A4 B8 A5 8T 2.0 TFSI CDNC Quattro 211HP Engine Control Unit ECU 8K5907115
Promo price
£237.95
£142.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 03L911021E
Audi A4 B8 Starter Motor Engine Motor Actuator Diesel Bosch 03L911021E
Promo price
£28.95
£24.61
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4L0907290
Audi Q7 4L Gateway Convenience Module Unit Control ECU 4L0907290
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8E0907637A
Audi A6 C5 Yaw Sensor ESP Rotation Rate Control Unit Module 8E0907637A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4H0951253
Audi A3 8P Multi Use Control Module Relay 4 Pin Light Green Unit 4H0951253
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4G8959795J
Audi A7 4G8 Rear Door Module Control Module Unit Left Right N/O/S 4G8959795J
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4M0906093N
Audi A4 S4 B9 Petrol Fuel Pump Control Unit Module ECU 4M0906093N
Promo price
£32.95
£19.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. RHD-8K2971228
Audi A4 B8 HV Battery Alternator Wiring Harness Loom Cable 8K2971228
Promo price
£23.95
£20.36
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8T0959754D
Audi A4 B8 A5 8T A6 C7 Remote Radio Alarm Key Button Control 868 MHZ 8T0959754D
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8P7959255B
Audi A3 8P Convertible Folding Roof Module Control Unit ECU 8P7959255B
Promo price
£28.95
£24.61
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. RHD-8T2035186Q
Audi S3 8V Multimedia MMI Radio Stereo Audio Head Unit CD Player 8T2035186Q
Promo price
£23.95
£20.36
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 7L0971225
Audi Q7 4L 4.2 TDI Quattro Positive HV Battery Terminal Cable Harness 7L0971225
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 8V0857273P
Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P
£37.95
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8E0880201DH-1
Audi S4 B7 Steering Wheel Air Module Driver's Side 8E0880201DH
Promo price
£23.95
£20.36
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8P0959802F
Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802F
Promo price
£28.95
£24.61
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4B0907357
Audi TT 8N Headlight Range Control Module Unit ECU 4B0907357
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0959663
Audi A4 B8 A5 8T Voltage Stabilizer Converter Control Unit Module 8K0959663
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0959792N
Audi Q5 8R Door Lock Control Module Unit ECU Front Left N/S 8K0959792N
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0937517A
Audi A4 B8 A5 8T Battery Postive Terminal Distribution Power Board 8K0937517A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0971104
Audi A5 8T Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4F9035225D
Audi A6 C6 Antenna Amplifier Control Unit Module ECU 4F9035225D
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 130831041000
Audi A5 8T Headlight Inner LED Inner Module Unit 6NHM0000 130831041000
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8T0971035BA
Audi A5 8T Coupe Front Driver Side Door Wiring Harness Right O/S 8T0971035BA
Promo price
£66.95
£56.91
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 5Q0915181D
Audi A3 S3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181D
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 8R0971104CC
Audi Q5 8R Rear Bumper PDC Parking Sensor Wiring Harness Loom 8R0971104CC
£37.95
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4F0910655Q
Audi A6 C6 4F Control Unit Air Module ECU Bosch 4F0959655G
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8XA959655A
Audi A1 8X Air Module Control Sensor SRS System ECU Unit 8XA959655A
Promo price
£66.95
£40.17
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8W1907063AG
Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W1907063AG
Promo price
£246.95
£148.17
Free delivery: Mar 2 – 9
If paid before 14:00
-5%
Part no. 5Q0959595E
Audi A3 8V Door Control Module Unit ECU Rear Left Right N/O/S 5Q0959595E
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 06K907425A-1
Audi S3 8V 2.0 TFSI CJXC 300HP Quattro Engine Control ECU 06K907425A Automatic
Promo price
£189.95
£113.97
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4E0910336MX
Audi A6 C6 Bluetooth Multimedia Interface Control Module Unit ECU 4E0910336MX
Promo price
£66.95
£40.17
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 5Q0937084AQ
Audi A3 8V Body Control Comfort Unit Module BCM Unit ECU 5Q0937084AQ
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 3Q0907530AG
Audi Q2 Q3 F3 1.5 TFSI Gateway Control Unit Module ECU 3Q0907530AG
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8W1959592
Audi Q5 8R Door Module Front Left N/S Control Unit ECU Controller 8W1959592
Promo price
£23.95
£20.36
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. RHD-8R2035666J
Audi A4 B8 Multimedia Stereo Sat Nav SD CD Player Radio Head Unit 8R2035666J
Promo price
£113.95
£68.37
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8Y0947355P
Audi S3 8Y Glow Box Light Control Unit LED Module 8Y0947355P
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4F0919813E
Audi A4 B8 Chip Card Reader for Road Toll ETC Japan Module Unit 4F0919813E
Promo price
£28.95
£17.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4G8959107S
Audi A7 4G8 Sportback Electric Tailgate Bootlid Control Unit Module 4G8959107S
Promo price
£28.95
£17.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 06K907425J-1
Audi S3 8V 2.0 TFSI 300HP DNUE Quattro Engine ECU Kit 06K907425J Ignition + Key
Promo price
£227.95
£136.77
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8V0035465D
Audi A3 8V Bang & Olufsen Audio Sound Amplifier Stereo System Module 8V0035465D
Promo price
£75.95
£45.57
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 3G0962243C
Volkswagen Seat Skoda Audi Tailgate Module Controller 3G0962243C
Promo price
£28.95
£24.61
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8P7959655
Audi A3 8P Air Module SRS System Control Sensor ECU Unit 8P7959655
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8J0035195G
Audi TT 8J Radio Head Unit CD Audio Player Control Unit 8J0035195G
Promo price
£32.95
£19.77
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 03G906016HS-1
Audi A6 C6 2.0 TDI BRE 140HP Engine Control Module ECU Set 03G906016HS Manual
Promo price
£94.95
£56.97
Free delivery: Feb 27
If paid before 14:00
Part no. 8E5035225S
Audi A4 B7 Window Antenna Amplifier Module Unit 8E5035225S
£75.95
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8P3035223B
Audi S3 8P Audio Sound System Amplifier Bose 290328
Promo price
£28.95
£17.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8K0907064EE
Audi A5 8T Body Control Module BCM Comfort Control Unit 8K0907064EE
Promo price
£28.95
£17.37
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8T0959793J
Audi A5 8T Door Module Control Unit ECU Front Driver's Side 8T0959793J
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 3Q0907530AC
Audi A3 8V Gateway Diagnostics Interface Control Module 3Q0907530AC
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
Part no. 8U0959655D
Audi Q3 8U Air Module ECU Sensor Control Unit 8U0959655D
£37.95
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 81A955559A
Volkswagen Audi Skoda Windscreen Rain Sensor Control Unit 81A955559A
Promo price
£23.95
£20.36
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8J0907376B
Audi TT 8J Suspension Damper Module Control Unit 8J0907376B
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4L0959793B
Audi Q7 4L Front Door Module Driver Right O/S Side Control Unit 4L0959793B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. RHD-8X2971029AJ
Audi A1 8X Front Driver Door Wiring Right O/S Harness Loom Cable 8X2971029AF
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8J0971226
Audi TT 8J Negative Battery Cable Lead 8J0971226
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8H0959985B
Audi Q7 4L Keyless Module ECU Door Lock Control Unit 8H0959985B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 4N0909144E
Audi Q7 4M Power Steering Rack Pinion Box Gear Module Control Unit 4N0909144E
£251.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. RHD-8X2971030M
Audi A1 8X Front Passenger Door Wiring Harness Loom Cable Left N/S 8X2971030K
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 03L906018AB-1
Audi A3 8P CFFB 2.0 TDI 140HP Diesel Engine ECU Kit 03L906018AB Ignition + 2 Key
Promo price
£113.95
£68.37
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0971679B
Audi A4 B8 Glove Box Passenger Air Module Switch Wiring Harness Cable 8K0971679B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 5WA907338B
Audi S3 8Y Front Lamp Range Headlight Ballast Control Module Unit ECU 5WA907338B
Promo price
£37.95
£22.77
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4H0907705K
Audi A8L 4H Steering Angle Steering Wheel Column Control Module ECU 4H0907705K
Promo price
£28.95
£17.37
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8R1035223A
Audi A4 B8 A5 8T Sound System Amplifier Control Module ECU 8R1035223A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4L0919614B
Audi Q7 4L Navigation Multimedia Control Panel Knob Unit 4L0919614B
Promo price
£455.95
£273.57
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8J0951177
Audi TT 8J Interior Roof Alarm Motion Ultrasonic Sensor 8J0951177
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 5WA919298B
Audi S3 8Y PDC Parking Distance Assist Sensor Module Control Unit 5WA919298B
Promo price
£32.95
£19.77
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 7M0951253A
Audi VW Volkswagen Seat Relay Unit Module 4 Pins 7M0951253A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8P7959255
Audi A3 8P Convertible Roof Control Module ECU 8P7959255
Promo price
£23.95
£20.36
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4F0910274C
Audi Q7 4L Tyre Pressure Sensor Control Module Unit ECU 4F0910274C
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8X0959792F
Audi A1 8X Front Door Control Module Unit Passenger Side 8X0959792F
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4G8959795A
Audi A7 4G8 Door Control Module Electrical Unit ECU Rear Right O/S 4G8959795A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 8W0907064BB
Audi A4 B9 BCM Body Comfort Module Onboard Control Unit ECU 8W0907064BB
£47.95
Free delivery: Feb 27
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 .