loosing boost

[seat_marsbar]

my leon keeps loseing boost it get there but u cant holf it there because it just looses the boost could it be the dump valve at fault. any idea peeps ?

 

[BoomhaueR]

Any fault codes? Could be a number of things. What DV do you have? When was it last serviced. Have you checked hoses for any signs of leakage?

 

[seat_marsbar]

ll the hoses are fine no fault codes and and has just been serviced