But there is no message.. The 2006 S60 i have has around 245000Km on it. I suppose i need to get it scanned with a OB2 and see what comes up. The "check engine" message came up about 1500km ago and i ignored it... so.. I'm suspecting it's time to change the timing belt, idler pulley etc.. and i say the just because i don't know when it was last done but i know the serpentine belt was changed when i got this car 2yrs ago. I've only driven it about 6000+km since i've had it.

Otherwise it seems to be driving fine.

Thoughts anyone?

 

The timing belt will not cause the check engine light to come on. It may be time to replace it, and you should make sure it's in good condition for it gets very expensive if it comes off and bends valves.

Check engine light is on because there is a self diagnostic code stored where a control unit thinks you are polluting.

 

For the most part, the timing belt replacement interval is 10 years /120K miles (190Km) but you can check for your specific engine by finding the B code on the timing belt cover (or on the firewall side of the block by the #1 cylinder if your sticker is gone). Most techs leave some sticker or marker indicating when the timing belt was serviced but yours should have been done at least five years ago.

https://cdn.volvotechinfo.com/upload...ltInterval.pdf


PS - You can also buy your own OBD2 scanner. Being the nice dad that I am, I gave my son a $30 Cen-tech scanner to keep in his S40 and it works great from check engine codes, particularly for somebody who will still pay a shop to do the full diagnosis. Easy enough to find on Amazon - you don't need an expensive unit to get the basic info.

PPS - If you do get your own scanner, write down all codes before erasing. My general rule of thumb is if something is genuinely wrong with the car, the codes will simply reappear within a few hundred miles (some codes are "averaging" so they won't appear right away).