OK, I'm a little confused, we have a 2004 Passat wagon, it's not a diesel. It's coming on 100k miles, and we're starting to think about the timing belt. I'm not all that mechanically inclined, but it looks to me like there's a timing belt in this car, but when we bought it, the dealer told us there was a timing chain and we should think about changing it around 105-110k miles. Any suggestions? Do we have a chain or a belt? Thanks kindly.