i have a renault laguna and when i brake i have a violent vibration ?

They probably are. Had this with my Espace. New discs cured it. Didn't buy from Renault, got mine from Wilco Carmaster for £44.00 a pair in 2001 when I saw them on special offer and kept them in my garage until it needed them. Good bit of lucky foresight!

Chicks Fan
February 2009

replace front discs and pads also check that the brake sliders arnt seized and move in and out freely

dave brom
February 2009