I have a 2006 V70 turbo with 150000 miles . The transmission is slipping and getting worse especially when the engine gets hot like in the afternoons. Is there a way i can get this solved or helped without replacing the expensive replacement? I heard about adding additives but dont know what kind or where ,also replacing solenoid?? I am new at the forum, so any suggestion will be appreciated. The check engine light came on , I took it to auto zone they were
P0101,P2188,P0170 and P2178 but the guy did not know what they were since they did not have Volvo in their system

 

You can search those codes here or on Google.

What have you done so far? Is the transmission level correct? Is the fluid burt? Have you ever had the fluid changed?

 

He meant burnt (or burned)
The first thing to do is check the condition of the fluid, if it's BURNED it's probably history.
If it's just very dirty, you should try either a full flush (not really recommended on this high a mileage transmission), or a series or three or four "drain and fills", check for software availability, (your Volvo dealer), and if it will take it... do it!

Has it ever been serviced? If not, the outlook is not great, but you need to start somewhere