what transmission fluid and power steering fluid should i use? on 2005 Volvo S40

what type of transmission fluid and power steering fluid should i use on my car?
also if im putting in new transmission fluid, should i do a transmission fluid wash, is that nessasery since i dont know what exact oil was used before?

1 answer 2 comments
you need to use fluid part # 1161540 or trans fluid Mobil 3306 or the equivalent. As far as power steering fluid, use pentosin chf 202. Yes, I'd recommend that you do a complete transmission fluid flush so all old fluid gets removed and replaced with new.
The Swedish Mechanic is correct. Follow those guidelines.
thanks, i just ordered the CHF 202 now i can get the transmission fluid ;)