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. 8E0035411B
Audi A4 B7 Door Speaker Tweeter Front Left Right N/O/S 8E0035411B
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 1K0909606C
Crash Impact Sensor Volkswagen Golf Audi A4 Q7 A6 C6 Air Module Unit 1K0909606C
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8V0971104
Audi A3 S3 8V Sportback Wiring Harness PDC Parking Sensor Rear Bumper 8V0971104
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8K0915181B
Audi A4 B8 A5 8T A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181B
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 5Q0907361C
Audi A3 8V Fuse Box Control Module Relay Box 5Q0907361C
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 8W0959655F
Audi A4 B9 Air Module Crash Control Module Unit ECU 8W0959655F
Promo price
€222.95
€133.77
Free delivery: Jun 12 – 17
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: Jun 12 – 17
If paid before 14:00
-15%
Part no. 5Q0907530AM
Audi A3 8V VW Passat B8 Gateway Control Unit Module 5Q0907530AM
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8K0907064DP
Audi A4 B8 Body Control Module BCM Comfort Control Unit 8K0907064DP
Promo price
€32.95
€28.01
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8W0035454
Audi A4 B9 Front Centre Dashboard Tweeter Speaker 8W0035454
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4F9035225D
Audi A6 C6 Antenna Amplifier Control Unit Module ECU 4F9035225D
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8K0959663F
Audi A6 C7 Voltage Converter Stabilizer Control Module Unit ECU 8K0959663F
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4F0907357F
Audi A6 C6 Headlight Head Light Lamp Range Control Unit Module ECU 4F0907357F
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4H0907357A
Audi A7 4G8 Headlight Head Light Lamp Range Control Unit Module ECU 4H0907357A
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4G8959795G
Audi A6 C7 Rear Door Control Module Unit ECU Left Right N/O/S 4G8959795G
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4E0035729
Audi A6 C6 Bluetooth Interface MMI Multimedia Control Module ECU Unit 4E0035729
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8T0915181
Audi A4 RS4 B8 Battery Terminal Negative Cable Loom Harness Wiring 8T0915181
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4M0035507
Audi A3 8V A4 B9 Telephone Antenna Amplifier Module Unit Booster 4M0035507
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 02E911022C
Audi A3 8V 2.0 TDI DFGA Diesel Starter Motor 02E911022C
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 8T0907441B
Audi S5 8T Rear Reversing Camera Module View Camera Control Unit ECU 8T0907441B
Promo price
€113.95
€68.37
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 06H911021
Audi A4 B8 2.0 TFSI Petrol Engine Starter Motor 06H911021
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 5Q0962131
Antenna Control Module Audi Q3 RSQ3 F3 Line Keyless Entry 5Q0962131
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8H0951178
Audi A4 B7 Cabrio Alarm Signal Body Control Sensor Module Unit 8H0951178
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 8P0035192H
Audi A3 S3 8P Radio Media GPS Sat Audi Navigation Plus Unit 8P0035192H
Promo price
€237.95
€142.77
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8V4971693H
Audi A3 8V Rear Door Wiring Harness Cable Left Right N/O/S 8V4971693H
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 83A035063B
Audi A1 GB Q3 F3 Multimedia Head Unit Display Control Module 83A035063B
Promo price
€579.95
€492.96
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 81A971036H
Audi Q2 GA Door Wiring Loom Harness Front Passenger Side 81A971036H
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4H0937545L
Audi A8 D4 Fuse Relay Battery Junction Box Connector Housing 4H0937545L
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 8K0937501
Audi A4 B8 A5 8T A6 C7 Q5 8R Fuse Box Relay Module Connector Plug 8K0937501
€28.95
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 8W7907468E
Audi S5 F5 Gateway Control Module Diagnostic Interface Unit 8W7907468E
Promo price
€275.95
€165.57
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8T0907559E
Audi A4 B8 A5 8T 3.2 FSI 265HP CALA Quattro Engine Control Unit ECU 8T0907559E
Promo price
€284.95
€242.21
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8H0907357A
Audi S4 B8 Front Lamp Headlight Luminance Control Module Unit ECU 8H0907357A
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4G8971029EM
Audi A7 4G Front Door Harness Wiring Loom Cable Driver's Side 4G8971029EM
Promo price
€42.95
€36.51
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8V4971035DQ
Audi A3 8V Front Door Wiring Harness Cable Driver Side 8V4971035DQ
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 8W0971227B
Audi A4 S4 8W A5 S5 F5 Battery Wiring Harness Rear Distributor 8W0971227B
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8K0907637D
Yaw Sensor Audi A4 B8 A5 8T ESP Rotation Rate Unit Module 8K0907637D
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 1K0915181L
Audi Q3 8U Q3 S3 VW Scirocco Mk3 Battery Wiring Wire Negative Cable 1K0915181L
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8W0971365G
Audi A5 F5 Seat Belt Warning Wiring Harness Cable Front Left N/S 8W0971365G
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8W9971104T
Audi A4 B9 Rear Bumper PDC Wiring Parking Sensor Loom Harness 8W9971104T
Promo price
€37.95
€32.26
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 03C906026AD
Audi A1 8X 1.4 TFSI CTHG 185HP Engine ECU Kit BCM + Key 03C906026AD Automatic
Promo price
€284.95
€170.97
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4G0971765E
Audi A7 4G8 3.0 TDI Adblue Tank Pump Wiring Loom Harness Loom 4G0971765E
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 5Q0919294G
Audi A3 8V PDC Parking Distance Control Sensor Module Unit ECU 5Q0919294G
€47.95
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4G8971687CH
Audi A7 4G Rear Door Wiring Harness Cable Left Right N/O/S 4G8971687CH
Promo price
€32.95
€28.01
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8R0971104AL
Audi Q5 8R Rear Bumper Parking Sensors Wiring Harness Loom 8R0971104AL
Promo price
€61.95
€52.66
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 5Q0937125A
Fuse Relay Box Volkswagen Audi Skoda Seat Engine Bay Supply Unit 5Q0937125A
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 8U0971687D
Audi Q3 8U Door Loom Wiring Harness Cable Rear Left Right N/O/S 8U0971687D
€28.95
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 8P4971035AB
Audi S3 8P Wiring Harness For Door Trim Panel D Cable Harness 8P4971035AB
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 8W8971687M
Audi A5 F5 Sportback Door Wiring Harness Loom Rear Left N/S 8W8971687M
Promo price
€47.95
€28.77
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4H0907468AF
Audi A8 D4 Central Diagnostic Getaway PKO Control Unit Module ECU 4H0907468AF
Promo price
€66.95
€56.91
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8T8971687AA
Audi A5 S5 8T Door Wiring Loom Harness Cable Rear Left N/S 8T8971687AA
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8X0971029S
Audi A1 8X Door Loom Wiring Harness Cable Front Driver Side 8X0971029Q
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8P0971148
Audi A3 8P Tailgate Heated Rear Window Wiring Harness Loom 8P0971148
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8W0907063CG
Audi Q5 FY 2.0 TFSI DAXB Petrol Supply Body Control Module Unit 8W0907063CG
Promo price
€56.95
€48.41
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8T8971688L
Audi A5 S5 8T Door Wiring Loom Harness Cable Rear Right O/S 8T8971688L
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8T0907468AA
Audi S4 B8 Diagnostic Interface Gateway Control Module Unit ECU 8T0907468AA
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8W0971228AM
Audi A4 B9 A5 F5 Wiring Set Starter Alternator Earth Lead 2.0 TDI 8W0971228AM
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 8K0971228AJ
Audi A6 C6 Alternator Main Cable Wiring Harness Loom 8K0971228AJ
Promo price
€56.95
€34.17
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4E0941285G
Audi S8 D3 Front Headlight Level Control Sensor Left N/S 4E0941285G
Promo price
€32.95
€28.01
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8S0915181B
Audi A7 4G8 A6 C7 Negative HV Battery Cable Wire Harness Terminal 8S0915181B
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4H4907357B
Audi A8 D4 Headlight Head Light Lamp Range Control Unit Module ECU 4H4907357B
Promo price
€75.95
€64.56
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4G0035736-1
Audi A6 Allroad Avant A7 4G8 RS6 USB Charging Socket Aux Connection 4G0035736
Promo price
€94.95
€80.71
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8K0971104AF
Audi A5 8T 5 Door Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104AF
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 5Q0907530P
Audi A3 8V Gateway Control Module Unit ECU 5Q0907530P
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4M0907247A
Keyless Entry Amplifier Audi A4 B9 A5 F5 Control Box Module Antenna 4M0907247A
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 03L906018JJ
Audi A4 B8 A5 8T 2.0 TDI 177HP Engine Control Module ECU 03L906018JJ Automatic
Promo price
€51.95
€44.16
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8J0959651
Audi A3 8P Air Module Crash Impact Sensor 8J0959651
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 8T0907441D
AUDI A4 B8 Reversing Camera Control Module Rear View Unit ECU 8T0907441D
Promo price
€137.95
€82.77
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8W1959593
Audi Q5 FY Front Door Control Module Unit Right O/S Side 8W1959593
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 8P4971693T
Audi A3 8P Door Wiring Harness Loom Cables Rear Left Right N/O/S 8P4971693T
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 8T0907566B
Audi A4 B8 Blind Spot Radar Sensor Control Module Rear Right O/S 8T0907566B
€75.95
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8R0971035AM
Audi Q5 8R Door Wiring Loom Harness Electrical Cable Driver's Side 8R0971035AM
Promo price
€32.95
€28.01
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 4F0919887M
Audi A5 8T Navigation System Car Sat Nav Computer Head Unit 4F0919887M
Promo price
€104.95
€62.97
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8J0907159B
Audi TT 8J Alarm Signal Body Sound Impact Control Module Unit 8J0907159B
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 1S0919275D-BLK
Audi Q3 8U PDC Parking Distance Control Sensor Black - Z9Y 1S0919275D
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4K0971727
Audi A6 C8 Pressure Sensor Wiring Loom Harness Cable 4K0971727
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4L0907355B-1
Audi Q5 8R Adblue Metering Control Module Unit ECU 4L0907355B
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4F0907468M
Audi A6 C6 Diagnostic Interface Gateway Module ECU Control Unit 4F0907468M
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 5WA962133F
Audi Volkswagen Seat Keyless Entry Module Aerial Antenna 5WA962133F
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 80A907247A
Audi Q5 FY Keyless Entry Amplifier Control Box Module Aerial Antenna 80A907247A
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8T0971365
Audi A4 B8 Seat Occupancy Belt Alarm Wire Wiring Cable Loom Harness 8T0971365
Promo price
€37.95
€32.26
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8K0907063AJ
Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907063AJ
Promo price
€61.95
€52.66
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 02Z911023R
Audi A3 8P VW Golf 5k Starter Motor 1.4 TFSI CAXC Petrol 02Z911023R 0001142003
Promo price
€37.95
€32.26
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8X0907357C
Audi TT 8J Headlight Head Light Lamp Range Control Unit Module ECU 8X0907357C
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 06M907309D
Audi A4 S4 B9 3.0 TFSI 355HP CWGD Quattro Engine Control Unit ECU 06M907309D
Promo price
€265.95
€226.06
Free delivery: Jun 12 – 17
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: Jun 12 – 17
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: Jun 12 – 17
If paid before 14:00
-40%
Part no. 8P4035223B
Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223B
Promo price
€132.95
€79.77
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8P0959655S
Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655S
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4F0919805
Audi A4 B8 Smart Card Reader Smart Card System TV 4F0919805
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4H0941824
Audi A6 C8 Fuse Box Relay Plug Socket Fuse Unit Holder Bracket 4H0941824
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 079911023D
Audi A5 8T 2.0 TFSI Starter Motor Engine 079911023D
Promo price
€28.95
€24.61
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 8K0959795A
Audi A4 B8 Rear Door Module Control Unit ECU Left N/S 8K0959795A
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4H0907412
Audi A8 D4 Ambient Lighting Control Module Unit ECU 4H0907412
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 4G0919129A
Audi A5 8T A6 C7 A7 4G A8 4H TV Tuner Digital Video Control Module 4G0919129A
Promo price
€70.95
€60.31
Free delivery: Jun 12 – 17
If paid before 14:00
Part no. 83A947356J
Audi Q3 F3 LED Rear Door LED Lighting Module Control Unit Left N/S 83A947356J
€23.95
Free delivery: Jun 12 – 17
If paid before 14:00
-5%
Part no. 4L0959794B
Audi Q7 4L Door Control Module Electrical Unit ECU Rear Right O/S 4L0959794B
Promo price
€23.95
€22.75
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 5Q0959655L
Audi A3 8V Air Module Control Sensor ECU Unit 5Q0959655L
Promo price
€89.95
€53.97
Free delivery: Jun 12 – 17
If paid before 14:00
-15%
Part no. 8J0971349S
Audi TT 8J Alternator Main Cable Wiring Harness Loom CBBB Manual 8J0971349S
Promo price
€47.95
€40.76
Free delivery: Jun 12 – 17
If paid before 14:00
-40%
Part no. 8K0907551-2
Audi S4 B8 3.0 TFSI 333HP CAKA Quattro Engine Unit ECU Kit 8K0907551 Automatic
Promo price
€303.95
€182.37
Free delivery: Jun 12 – 17
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 .