hi. i just bought a v70 2001 model,it have aome problems. it wont turn on the light on the klimapanel to the rear window heater and also not for both seat heater and no power for them. but there is light in everything else.

i checked the fuses and they are ok.

i also have a problem whit a fault code 640a vvt valve.
i changede the vvt solenoid ond put in fresh oil but still the same fault.
what can be the issues whit those problems..

sorry for my english but im from denmark :-)

 

Just an idea, but from what I read, the VVT hub can be at fault sometimes. For me, it was the solenoid. A new unit with new gasket solved my rough idle and present code (I forget exact code #).