the guy doing my service has said this.....
I would be carefull changing the dv valve while its running ok with no fault codes coming up as most people I know that have changed them have had teething problems with leaks and faults occurring with the new one,you would probably be better to make sure its serviced regularly,decent plugs and injector cleaner until it goes wrong,if you want a price I will sort one out for you.
but after readin stuff on here i,m going to get it changed anyway.
re my service thread.... any help appreciated!
matsu