I drive a Golf MK6 1.6 TDI 105CR, i'm having issues with the brakes that neither me or the garage can quite get to the bottom of and its beginning to bug me! Basically the original fault occurred under braking to which prompted the changing of the rear disc (Needed doing as they were coming to the end of life, same as fronts). Original fault didn't go away, front discs were then changed, braking was fine up until around the 3k/4k mark when under braking, the pedal would vibrate but minimal vibration through the steering. Took it to the garage again and had the rear discs clamped off to find the issue had manifested in the front two discs, changed them under warranty, sure enough fine when i drove them out, hit the 3/4k mark and the problem arisen again.
Basically changed front nearside wheel hub bearing, again the discs lasted the same amount of life before they gave way again, interestingly enough I have had my 18" aftermarket alloys on during this period until i suspected a buckle in them as I was having high speed vibrations between 70-80, the kind where you fixate at a particular rev range and speed and feel the tremor stem from the pedals. I've reverted back to my standard 16" alloys (wish i never took them off as it comprimised the road ride tenfold). I was just wondering whether buckled/distorted rims could possibly be affecting the discs to somehow warp? I personally doubt it but just throwing something simple into the mix!
Any insight would be appreciated!