Hi fellow volvo techies, i desperately need help on this, i run the car and everything seems pretty fine till the car reaches running temperature, then it starts to get pretty erratic, ie ... revs tart to run high for a second or 2 inbetween gear changes, to about 3500 revs at low speed, if im driving urban say for about 10 miles or so, when i stop the car you can smell that the engine is really hot , but temp gauge is right in the middle, so when i turn the engine off the fan will kick in..... but if i turn the ignition on without starting the engine, the fan will stop... if i leave the car turned off the fan will run for about 4 to 5 mins, what puzzles me is why the fan turns off when i turn the ignition on, im thinking when the car is running the fan is not working, thats why its heating up and getting erratic, hope i can get some good feedback from you guys on this forum... many thanks in advance.....

 

an european S80 eh??? ..well it looks like some electrical problem. do you get any error message displayed?? maybe you might have to replace the entire fan or inspect the fan module

 

yes uk , ofton get engine service required, but when i turn off engine and restart, error message clears, ???

 

well in anycase get that error code checked with a scanner..do it when you see the message

 

the only time i get that mesage is when the car is cold and i accelerate quickly then get error engine service required, the car goes in limp mode, i stop turn of engine , restart car error clears and car is out of limp mode , any more suggestions please.

 

well like i said you have to get that code when there is that message. That way you can identify the problem. Either keep a scanner in hand or as soon as you get that message go to a mechanic and get it checked