I have a Fiat Doblo 1.9 JTD 04 reg with 63000 miles on the clock. Within the last 7 days it feels as if the brakes are applying themselves whilst i'm driving along. If I let the accelorater pedal up and then push down again the braking sensation ceases and I can continue driving as normal. There seems to be no set pattern to this happening. I can go 2 hours without it happening and then it can happen 3 times in a minute. About 2 weeks ago i had new brake pads fitted so i don't know if that's anything to do with it. Can anyone help?