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.
Make
Category
Subcategory
Condition
In Stock
Price
-5%
Part no. 4L1937503
Audi Q7 4L Fuse Relay Box Module Electrical Control Unit 4L1937503
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 1K0971235J
Audi A3 Volkswagen Golf Battery Wire Cable Negative Earth Lead 1K0971235J
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8T0862335F-1
Audi A4 B8 Bluetooth Multimedia Interface Control Module Unit ECU 8T0862335E
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 4E0910552G
Audi S8 D3 5.2 FSI 450HP BSM Quattro Engine Unit ECU 4E0910552G Automatic
Promo price
€379.95
€227.97
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8T0959792H
Door Module Audi A5 8T A4 B8 Control Front Left N/S Unit 8T0959792H
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 5Q0971250P
Audi S3 8V Battery Wire Cable Negative Earth Lead 95Q0971250P
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 4F9971085E
Audi A6 C6 Avant Rear Bumper PDC Wiring Loom Parking Sensor 4F9971085E
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8T0959793F
Door Module Audi A5 8T A4 B8 Control Front Right O/S Unit 8T0959793F
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8S0820047
Audi TT FV 8S A/C Air Condition Climate Control Module Unit ECU 8S0820047
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 5Q0937084CJ
Audi A3 8V 1.6 TDI DBKA BCM Body Control Module Unit ECU 5Q0937084CJ
Promo price
€56.95
€34.17
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8T0959792D
Audi A5 8T Front Door Control Module Unit Left N/S 8T0959792D
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8K0907064JE
Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064JE
Promo price
€56.95
€34.17
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4E0941817A
Audi RS4 B8 Front Door Wiring Harness Loom Plug Socket 4E0941817A
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8E1971035DF
Audi A4 Door Harness Loom Cable Wiring Front Left Right N/O/S 8E1971035DF
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 4G0035061N
Audi A5 8T Stereo DAB CD Player Radio Receiver Head Unit 4G0035061N
Promo price
€284.95
€170.97
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8K590735700
Audi A5 8T Front Lamp Xenon Headlight Range Control Module 8K590735700
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 03L906018JR
Audi A4 B8 2.0 TDI CJCB 136HP Engine Control Unit Module ECU 03L906018JR Manual
€66.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 4L0971104S
Audi Q7 4L Rear Bumper Wiring Loom PDC Harness Parking Sensor 4L0971104
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 4G8971365
Audi A7 4G Seat Cable Front Left Right N/O/S Wiring Loom Harness 4G8971365
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 1K0971349JQ
Audi A3 8P 1.2 TFSI CBZB Alternator Wiring Harness Cable Loom 1K0971349JQ
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8T0919603F
Audi A4 B8 AV10NEO Display Screen Radio Multimedia Navigation Sat 8T0919603F
Promo price
€51.95
€44.16
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4N0959651D
Audi Q5 FY Crash Impact Sensor Unit Module Left Right N/O/S 4N0959651D
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 4H0907705K
Audi A8L 4H Steering Angle Steering Wheel Column Control Module ECU 4H0907705K
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4F1971845A
Audi R8 42 Fuse Box Electrical Connector Relay Control Unit Module 4F1971845A
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 3Q0907530B
Audi A3 8V Central Gateway Control Unit Module Relay ECU 3Q0907530B
€42.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 06N907309A-1
Audi A4 B9 8W 35 TFSI DMSB 150 HP Engine ECU Kit Body + Key 06N907309A Automatic
Promo price
€379.95
€227.97
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 079911021D
Audi Q7 4L Engine Starter Motor Actuator Starter 079911021D
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8W0959595G
Audi A4 B9 Rear Door Control Module Unit ECU Left Right N/O/S 8W0959595G
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 5Q0937125G-1
Seat Ateca Audi Q3 Mk2 TT 8S Fuse Relay Box Engine Bay Supply Unit 5Q0937125G
€37.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4E0941817B
Audi A6 A8 D4 Q7 4M CAN Bus Jumper Contact Bridge Connector Plug 4E0941817B
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4H0971663A
Audi A8 D4 Front Door Wiring Harness Loom Cable Left N/S 4H0971663A
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 5Q0959393
Audi A3 8V Control Unit Central Door Locking Module ECU 5Q0959393
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8T0035223AH
Audi A4 B8 8K A5 8T Amplifier Audio Sound Booster Module 8T0035223
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8W1907063AG
Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W1907063AG
Promo price
€284.95
€170.97
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 81A035192B
Audi A3 8V Radio CD SD SIM Player Stereo Sat Nav Head Unit 81A035192B
€332.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8K0927710A
Audi A4 B8 A5 8T Steering Column Connector Plug 8K0927710A
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4B0955531C
Audi VW Volkswagen Seat Relay Unit 16 Pins number 389 12V UH2 4B0955531C
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 4M0971104CB
Audi Q7 4M Rear Bumper PDC Parking Sensor Wiring Harness Loom 4M0971104CB
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 5Q0971228AC
Audi Q2 GA Volkswagen T Roc Battery Terminal Positive Cable 5Q0971228AC
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7H0907655A
Audi TT 8J Yaw Rotary Rate Sensor Speed Cluster Sensor 7H0907655A
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8R0907364B
Audi Q5 8R A5 8T A4 B8 Active Suspension Module Damping Control Unit 8R0907364B
Promo price
€42.95
€25.77
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4F1941824B
Audi Q7 4L Fuse Box Control Module Connector Plug 4F1941824B
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 5WA919298
Audi S3 8Y PDC Parking Distance Assist Sensor Module Control Unit 5WA919298
€56.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 4M0035454B
Audi A4 B9 Dashboard Loudspeakers Tweeter Speaker Front 4M0035454B
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 4H0971104S
Audi A8 D4 Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 4H0971104S
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 5Q0907530H
Audi A3 8V Gateway Interface Control Unit Module ECU Interface 5Q0907530H
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4F1941824
Audi Q7 4L Fuse Box Control Module Connector Plug Socket Wiring Loom 4F1941824
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8V0907376H
Audi A3 S3 8V AMR Module Rear Suspension Damper Control Unit 8V0907376H
€142.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8V3971035A
Audi A3 S3 8V 3D Door Wiring Harness Loom Cable Driver's Side 8V3971035A
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4K5035225D
Audi A6 C8 Aerial Antenna Amplifier Control Unit Module 4K5035225D
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 4H0907355D
Audi A7 4G A8L 4H Ad Blue Control Module Unit ECU 4H0907355D
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4G8959792J
Audi A7 4G8 Door Control Module Front Passenger Side 4G8959792J
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8K0951253-1
Audi VW Volkswagen Seat Relay 643 Unit Module 4 Pins Set X2 8K0951253
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8K0907440
Audi Q7 4L GPS Tracking Location Control Unit Module Locator 8K0907440
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
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
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8T0919603G
Audi A5 8T Display Screen Radio Multimedia Navigation Display 8T0919603G
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8E0907637A
Audi A6 C5 Yaw Sensor ESP Rotation Rate Control Unit Module 8E0907637A
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 4G0907397R
Audi S1 8X Front Lamp Headlight DRL Ballast Control Module Unit 4G0907397R
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8W0907159J
Audi A4 B9 A5 F5 Impact Sound Actuator Control Module 8W0907159J
Promo price
€42.95
€25.77
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4F0051510K
Audi Cable Adapter iPod Connection 4F0051510K
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 1S0919275D-MOG
Audi Q3 8U PDC Parking Distance Control Sensor Monsoon Grey Metallic - X7R
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8K0971688AG
Audi A4 B8 Door Wiring Harness Loom Rear Right O/S Cabling 8K0971688AG
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8T0035462
Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035462
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8T0035223AP
Audi A4 S4 B8 Audio Amplifier Sound Booster Control Unit Module 8T0035223AP
Promo price
€189.95
€113.97
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8K0959792J
Audi A4 B8 Door Module Front Left N/S Control Unit Module ECU 8K0959792J
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4G0971845A
Audi A6 C7 Fuse Relay Box Sam Control Module 4G0971845A
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4H0907182H
Audi A8 D4 4H Front Seat Backrest Control Module Unit ECU 4H0907182H
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4H0907063L
VW Touareg 7P Central Body Control Module Comfort Unit BCM ECU 4H0907063L
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4N0955557A
Audi A6 C8 A7 C8 Door Crash Impact Sensor Front Left N/S Side 4N0955557A
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8K0971035AR
Audi A4 B8 Front Driver's Door Wiring Harness Loom Electrical Cable 8K0971035AR
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 03G903139D
Audi A4 B7 Engine Alternator Mount Support Bracket 1.9 2.0 TDI 03G903143D
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8R0907468AE
Audi A5 8T 2.0 TDI Gateway Control Module Unit ECU 8R0907468AE
Promo price
€99.95
€59.97
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8E0857925G
Audi A3 8P TT 8J A4 B7 Ipod Interface Multimedia Storage Compartment 8E0857925G
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 06H903016L
Audi A5 8T Engine Alternator Generator 14V 140A Bosch 2.0 TFSI 06H903016L
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 4E0035654A
Audi A6 C6 MMI Multimedia Navigation Control Head Unit 4E0035654A
Promo price
€284.95
€170.97
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4F0959794E
Audi A6 C6 Rear Door Right O/S Module Unit Control ECU 4F0959794E
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8W0915181
Audi TT FV 8S Negative Battery Cable Lead Monitoring Module 8W0915181
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4K0941572CS
Audi A3 8Y LED Headlight Headlamp Ballast Control Module 4K0941572CS
€37.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8N0906018CB
Audi TT 8N 1.8T BAM 224HP Quattro Engine Control Unit ECU 8N0906018CB Manual
€170.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4G0907355G
Audi A7 4G8 3.0 TDI CZVA Adblue Control Module Unit ECU 4G0907355G
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8D0951253-1
Audi A4 B6 B7 B8 Q7 4L A6 C7 A8 D4 Multi Use Relay Unit Module 4 Pins 8D0951253
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8V4971036Q
Audi A3 8V Sportback Front Passenger's Door Loom Wiring Harness 8V4971036H
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8W0419065D
Audi A4 B9 A5 F5 Power Steering Column Control Unit Module 8W0419065D
Promo price
€47.95
€28.77
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 420919275-BLM
Audi A5 8T Rear Bumper PDC Parking Distance Sensor Black Magic Pearl - C9Z
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8P0035785
Audi A3 8P MMI Multimedia Interface Unit Module Control ECU 8P0035785
Promo price
€42.95
€25.77
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8S0971104
Audi TT FY Rear Bumper PDC Cables Set Wiring Loom Harness 8S0971104
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 4G0907401F-1
Audi A7 4G 3.0 TDI CDUC Quattro Engine ECU Kit BCM + Ignition + Key 04L907445F
Promo price
€398.95
€239.37
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8K0959793Q
Audi A4 B8 Door Module Control Unit ECU Front Driver's Side 8K0959793Q
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
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
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8W0959595M
Audi A4 B9 A5 F5 Door Module Rear Right Left N/O/S Control Unit 8W0959595M
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8R0919604A-1
Audi A5 8T Multimedia Radio Sat Nav Screen Display Head Unit 8R0919604A
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4F0959795E
Audi A6 C6 Rear Door Left N/S Module Unit Control ECU 4F0959795E
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 4F1862335
Audi Q7 4L Bluetooth Interface Telephone Control Module ECU Unit 4F1862335
Promo price
€66.95
€40.17
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4G0907697F
Audi TT FV LED Headlight Ballast Module Daytime Running Lights Unit 4G0907697F
€47.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8W0971235A
Audi A4 B9 Negative Battery Terminal Cable Harness Wiring Loom 8W0971235A
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8V1035035B
Audi A3 S3 Q2 RS3 Multimedia Navigation Card Reader Head Unit 8V1035035B
€560.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4F0971235
Audi A6 C6 Negative Battery Terminal Cable Wiring 4F0971235
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8K0959663D
Audi Q3 8U A3 8P A6 C7 Voltage Stabilizer Converter Control Module 8K0959663D
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 04L906021BQ
Audi A4 B8 Engine Control Unit Module ECU 2.0 TDI CNHC 163HP 04L906021BQ
Promo price
€56.95
€34.17
Free delivery: Feb 16 – 19
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 .