RIDEX 407W0166 Brake Pad Wear Indicator

Compatible with AUDI A4 B9 (8W2, 8WC) , AUDI A4 B9 Avant (8W5, 8WD) , AUDI A4 Allroad B9 (8WH, 8WJ) Show more info
This brake pad wear indicator from RIDEX ensures you are alerted when your brake pads need replacement, maintaining optimal braking performance and safety.
1.58 EUR
inc. VAT 21%
In stock 2
Delivery 1 day (23.03.2026)
PN 407W0166
Make RIDEX
EAN 4064138252041

The RIDEX 407W0166 brake pad wear indicator is a crucial safety component designed to notify you when your brake pads have reached their minimum thickness. Properly functioning brake pads are essential for effective stopping power. This indicator provides an audible or visual warning, allowing you to address potential issues before they compromise your vehicle's safety or cause further damage to your braking system. Crafted to meet rigorous quality standards, this RIDEX indicator is built for durability and reliable performance. It is designed for straightforward installation, ensuring a quick and efficient replacement process. Regularly checking and replacing worn brake pads, signaled by this indicator, is vital for maintaining the integrity of your braking system and ensuring a safe driving experience.

  • Monitors brake pad wear level
  • Provides timely replacement alerts
  • Enhances vehicle safety
  • Ensures optimal braking performance
  • Durable construction for longevity
  • Designed for easy installation
  • Direct fit for compatible models
  • Essential for proactive maintenance
Warning contact length [mm]
390
Mass [kg]
0,10
Number of wear sensors [per axle]
2
Installation side
Rear axle
Brake type
Disc brake mechanism
  • AUDI
    • A4 B9 (8W2, 8WC)
      • 1.4 TFSI (110kW/150PS)
      • 2.0 TFSI (140kW/190PS)
      • 2.0 TFSI (185kW/252PS)
      • 2.0 TFSI quattro (185kW/252PS)
      • 2.0 TDI (140kW/190PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 2.0 TDI (110kW/150PS)
      • 3.0 TDI (160kW/218PS)
      • 3.0 TDI quattro (160kW/218PS)
      • 3.0 TDI quattro (200kW/272PS)
      • 2.0 TDI (100kW/136PS)
      • 2.0 TFSI (183kW/249PS)
      • 2.0 TFSI quattro (183kW/249PS)
      • 2.0 TDI (90kW/122PS)
      • S4 TFSi quattro (260kW/354PS)
      • 2.0 TDI quattro (110kW/150PS)
      • 2.0 TDI quattro (120kW/163PS)
      • 40 TFSI Mild Hybrid (140kW/190PS)
      • 2.0 TFSI Mild Hybrid quattro (185kW/252PS) DDWA
      • 35 TFSI Mild Hybrid (110kW/150PS)
      • 45 TFSI Mild Hybrid (180kW/245PS)
      • 45 TFSI Mild Hybrid quattro (180kW/245PS)
      • 50 TDI quattro (210kW/286PS)
      • 45 TDI quattro (170kW/231PS)
      • 35 TDI (110kW/150PS)
      • 40 TDI (140kW/190PS)
      • 40 TDI quattro (140kW/190PS)
      • 30 TDI (90kW/122PS)
      • S4 TDI Mild Hybrid quattro (255kW/347PS)
      • 35 TDI Mild Hybrid (120kW/163PS)
      • 30 TDI Mild Hybrid (100kW/136PS)
    • A4 B9 Avant (8W5, 8WD)
      • 2.0 TFSI (140kW/190PS)
      • 2.0 TFSI quattro (185kW/252PS)
      • 2.0 TDI (140kW/190PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 2.0 TDI (110kW/150PS)
      • 3.0 TDI (160kW/218PS)
      • 3.0 TDI quattro (160kW/218PS)
      • 3.0 TDI quattro (200kW/272PS)
      • 2.0 TFSI quattro (183kW/249PS)
      • 2.0 TDI (100kW/136PS)
      • 1.4 TFSI (110kW/150PS)
      • 2.0 TDI (90kW/122PS)
      • 2.0 TFSI (185kW/252PS)
      • 2.0 TFSI (183kW/249PS)
      • S4 quattro (260kW/354PS)
      • 2.0 TDI quattro (110kW/150PS)
      • 2.0 TDI quattro (120kW/163PS)
      • 2.0 TFSI g-tron (125kW/170PS)
      • RS4 quattro (331kW/450PS)
      • 40 TFSI Mild Hybrid (140kW/190PS)
      • 2.0 TFSI Mild Hybrid quattro (185kW/252PS)
      • 35 TFSI Mild Hybrid (110kW/150PS)
      • 45 TFSI Mild Hybrid (180kW/245PS)
      • 45 TFSI Mild Hybrid quattro (180kW/245PS)
      • 50 TDI quattro (210kW/286PS)
      • 45 TDI quattro (170kW/231PS)
      • 35 TDI (110kW/150PS)
      • 40 TDI (140kW/190PS)
      • 40 TDI quattro (140kW/190PS)
      • 30 TDI (90kW/122PS)
      • 40 TFSI g-tron (125kW/170PS)
      • S4 TDI Mild Hybrid quattro (255kW/347PS)
      • 30 TDI Mild Hybrid (100kW/136PS)
      • 35 TDI Mild Hybrid (120kW/163PS)
    • A4 Allroad B9 (8WH, 8WJ)
      • 2.0 TFSI quattro (185kW/252PS)
      • 3.0 TDI quattro (160kW/218PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 3.0 TDI quattro (200kW/272PS)
      • 2.0 TDI quattro (120kW/163PS)
      • 2.0 TFSI quattro (183kW/249PS)
      • 2.0 TDI quattro (100kW/136PS)
      • 2.0 TDI quattro (110kW/150PS)
      • 3.0 TDI quattro (210kW/286PS)
      • 45 TFSI Mild Hybrid quattro (180kW/245PS)
      • 2.0 TFSI Mild Hybrid quattro (185kW/252PS)
      • 45 TDI quattro (170kW/231PS)
      • 50 TDI quattro (210kW/286PS)
      • 40 TDI quattro (140kW/190PS)
    • A5 (F53, F5P)
      • 2.0 TFSI quattro (185kW/252PS)
      • S5 quattro (260kW/354PS)
      • 2.0 TDI (140kW/190PS)
      • 3.0 TDI quattro (160kW/218PS)
      • 2.0 TFSI (185kW/252PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 2.0 TFSI (140kW/190PS)
      • 3.0 TDI (160kW/218PS)
      • 2.0 TFSI quattro (183kW/249PS)
      • 1.4 TFSI (110kW/150PS)
      • 3.0 TDI quattro (200kW/272PS)
      • 3.0 TDI quattro (210kW/286PS)
      • RS5 quattro (331kW/450PS)
      • 2.0 TDI (110kW/150PS)
      • 40 TFSI Mild Hybrid (140kW/190PS)
      • 2.0 TFSI Mild Hybrid quattro (185kW/252PS)
      • 45 TFSI Mild Hybrid (180kW/245PS)
      • 45 TFSI Mild Hybrid quattro (180kW/245PS)
      • 35 TFSI Mild Hybrid (110kW/150PS)
      • 45 TDI quattro (170kW/231PS)
      • 40 TDI (140kW/190PS)
      • 40 TDI quattro (140kW/190PS)
      • 50 TDI quattro (210kW/286PS)
      • 35 TDI (110kW/150PS)
      • S5 TDI Mild Hybrid quattro (255kW/347PS)
      • 35 TDI (120kW/163PS)
    • A5 Sportback (F5A, F5F)
      • 2.0 TFSI (185kW/252PS)
      • 2.0 TFSI quattro (185kW/252PS)
      • S5 quattro (260kW/354PS)
      • 2.0 TDI (140kW/190PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 3.0 TDI quattro (160kW/218PS)
      • 2.0 TFSI quattro (183kW/249PS)
      • 1.4 TFSI (110kW/150PS)
      • 3.0 TDI quattro (200kW/272PS)
      • 3.0 TDI (160kW/218PS)
      • 2.0 TFSI (140kW/190PS)
      • 2.0 TFSI g-tron (125kW/170PS)
      • 3.0 TDI quattro (210kW/286PS)
      • 2.0 TDI (110kW/150PS)
      • 2.0 TDI quattro (110kW/150PS)
      • 40 TFSI Mild Hybrid (140kW/190PS)
      • 2.0 TFSI Mild Hybrid (185kW/252PS)
      • 2.0 TFSI Mild Hybrid quattro (185kW/252PS)
      • 35 TFSI Mild Hybrid (110kW/150PS)
      • 45 TFSI Mild Hybrid (180kW/245PS)
      • RS5 quattro (331kW/450PS)
      • 45 TFSI Mild Hybrid quattro (180kW/245PS)
      • 45 TDI quattro (170kW/231PS)
      • 35 TDI (110kW/150PS)
      • 40 TDI (140kW/190PS)
      • 40 TDI quattro (140kW/190PS)
      • 50 TDI quattro (210kW/286PS)
      • 40 TFSI g-tron (125kW/170PS)
      • 35 TDI (120kW/163PS)
    • A5 Kabriolets (F57, F5E)
      • 2.0 TFSI quattro (185kW/252PS)
      • S5 quattro (260kW/354PS)
      • 2.0 TDI (140kW/190PS)
      • 3.0 TDI quattro (160kW/218PS)
      • 2.0 TFSI (185kW/252PS)
      • 2.0 TFSI (140kW/190PS)
      • 3.0 TDI (160kW/218PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 3.0 TDI quattro (210kW/286PS)
      • 2.0 TDI (110kW/150PS)
      • 40 TFSI Mild Hybrid (140kW/190PS)
      • 2.0 TFSI Mild Hybrid quattro (185kW/252PS)
      • 45 TFSI Mild Hybrid (180kW/245PS)
      • 45 TFSI Mild Hybrid quattro (180kW/245PS)
      • 40 TDI (140kW/190PS)
      • 40 TDI quattro (140kW/190PS)
      • 50 TDI quattro (210kW/286PS)
    • Q8 (4MN, 4MT)
      • SQ8 TDI Mild Hybrid quattro (320kW/435PS)
    • A8 D5 (4N2, 4N8, 4NC, 4NL)
      • 60 TFSI Mild Hybrid quattro (338kW/460PS)
      • 45 TDI quattro (183kW/249PS)
0 Updated