RIDEX 407W0186 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 RIDEX brake pad wear indicator (part code 407W0186) alerts you when your brake pads need replacement, ensuring optimal braking performance and safety.
1.22 EUR
inc. VAT 21%
In stock 4
Delivery 1 day (20.03.2026)
PN 407W0186
Make RIDEX
EAN 4064138511124

The RIDEX 407W0186 brake pad wear indicator is a crucial safety component designed to notify you when your brake pads have reached their minimum thickness. This indicator works by making contact with the brake disc once the pad material has worn down to a specific limit. This contact creates an audible squealing sound, serving as a clear warning that your brake pads require immediate attention and replacement. Regularly checking and replacing worn brake pads is essential for maintaining effective braking, preventing damage to other braking system components like the discs, and ensuring your vehicle's safety on the road. The RIDEX 407W0186 provides a reliable and audible alert system for this vital maintenance task.

  • Ensures timely brake pad replacement
  • Provides audible warning of wear
  • Helps maintain braking performance
  • Prevents damage to brake discs
  • Crucial safety component
  • Designed for specific vehicle applications
  • Durable construction for longevity
Warning contact length [mm]
280
Mass [kg]
0,10
Installation side
Front axle
Installation side
Front axle on the left
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)
      • 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
      • 45 TFSI Mild Hybrid (180kW/245PS)
      • 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)
      • 30 TDI (90kW/122PS)
    • 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)
      • 2.0 TDI quattro (110kW/150PS)
      • 2.0 TDI quattro (120kW/163PS)
      • 2.0 TFSI g-tron (125kW/170PS)
      • 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)
      • 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)
    • 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)
      • 45 TFSI Mild Hybrid quattro (180kW/245PS)
      • 2.0 TFSI Mild Hybrid quattro (185kW/252PS)
      • 45 TDI quattro (170kW/231PS)
      • 40 TDI quattro (140kW/190PS)
    • A5 (F53, F5P)
      • 2.0 TFSI quattro (185kW/252PS)
      • 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)
      • 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)
      • 45 TDI quattro (170kW/231PS)
      • 40 TDI (140kW/190PS)
      • 40 TDI quattro (140kW/190PS)
      • 50 TDI quattro (210kW/286PS)
      • 35 TDI (110kW/150PS)
    • A5 Sportback (F5A, F5F)
      • 2.0 TFSI (185kW/252PS)
      • 2.0 TFSI quattro (185kW/252PS)
      • 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)
      • 45 TFSI Mild Hybrid (180kW/245PS)
      • 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)
    • Q5 (FYB, FYG)
      • 2.0 TDI quattro (120kW/163PS)
      • 2.0 TDI quattro (140kW/190PS)
      • 2.0 TFSI quattro (183kW/249PS)
      • 2.0 TFSI quattro (185kW/252PS)
      • 2.0 TDI (110kW/150PS)
      • 2.0 TDI (100kW/136PS)
      • 3.0 TDI quattro (210kW/286PS)
      • 35 TDI quattro (120kW/163PS)
      • 40 TDI quattro (140kW/190PS)
      • 45 TFSI Mild Hybrid quattro (180kW/245PS)
      • 45 TDI quattro (170kW/231PS)
      • 50 TDI quattro (210kW/286PS)
      • 55 TFSI e quattro (270kW/367PS)
      • 35 TDI Mild Hybrid (120kW/163PS)
      • 40 TDI Mild Hybrid quattro (150kW/204PS)
      • 50 TFSI e quattro (220kW/299PS)
    • A5 Kabriolets (F57, F5E)
      • 2.0 TFSI quattro (185kW/252PS)
      • 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)
    • A6 C8 (4A2)
      • 45 TDI Mild Hybrid quattro (170kW/231PS)
      • 50 TDI Mild Hybrid quattro (210kW/286PS)
      • 40 TDI Mild Hybrid (150kW/204PS)
      • 45 TDI Mild Hybrid quattro (155kW/211PS)
      • 45 TFSI Mild Hybrid quattro (180kW/245PS)
      • 45 TFSI Mild Hybrid (180kW/245PS)
      • 35 TDI Mild Hybrid (120kW/163PS)
      • 55 TFSI e quattro (270kW/367PS)
      • 50 TFSI e quattro (220kW/299PS)
      • 30 TDI Mild Hybrid (100kW/136PS)
    • A6 C8 Avant (4A5)
      • 45 TDI Mild Hybrid quattro (170kW/231PS)
      • 50 TDI Mild Hybrid quattro (210kW/286PS)
      • 40 TDI Mild Hybrid (150kW/204PS)
      • 40 TDI Mild Hybrid quattro (150kW/204PS)
      • 45 TDI Mild Hybrid quattro (155kW/211PS)
      • 45 TFSI Mild Hybrid quattro (180kW/245PS)
      • 45 TFSI Mild Hybrid (180kW/245PS)
      • 35 TDI Mild Hybrid (120kW/163PS)
      • 30 TDI Mild Hybrid (100kW/136PS)
      • 55 TFSI e quattro (270kW/367PS)
    • A7 Sportback (4KA)
      • 45 TDI Mild Hybrid quattro (170kW/231PS)
      • 40 TDI Mild Hybrid (150kW/204PS)
      • 45 TDI Mild Hybrid quattro (155kW/211PS)
      • 45 TFSI Mild Hybrid (180kW/245PS)
      • 45 TFSI Mild hybrid quattro (180kW/245PS)
      • 40 TDI Mild Hybrid quattro (150kW/204PS)
      • 50 TFSI e quattro (220kW/299PS)
    • A6 Allroad C8 (4AH)
      • 50 TDI Mild Hybrid quattro (210kW/286PS)
      • 45 TDI Mild Hybrid quattro (170kW/231PS)
AUDI
OSCA
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