Hello There im a newbie to the forum so please excuse me if i do make a mistake, Ive just bought a Volvo V70 T5 X reg and the Check Engine light has just come on along with the message "Transmission Service required" the car does act strange somtimes as it revs to 3000 to change gears particularly gears 1-2 and at times it behaves and changes gears oddly, ive read through various forums aswel as this one and ive checked the topics, most people have considered changing the transmission oil, I took the car to a volv0 specialist and he checked the car for me and hes has pointed out that the check engine light + the service message is referring to a mechanical issue within the transmission. My question is has anyone had this problem and has it got any remedy? or has any1 changed the trans fluid and noticed any sort of difference? Ive also noticed that i am getting 12 MPG! for £25 worth of fuel could this be linked to the transmission problem?

Thanks