Thanks fella, thought as much...i knew fronts were on way out but kept delaying...anyhow got the sensor n pads...rears still got some bit on em ,so case of finding mechanic now who doesnt have a waiting list of 2 weeks or more...hopefully dont do damage to rotors in meantime as i must drive x5...

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E53 X5 3.0d SUV prod.date 11/2004 eng.variant M57N Europe Right hand drive N