2005 Volvo S40 Q&A
2005 Volvo S40 Question: what transmission fluid and power steering fluid should i use?
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. - swedish