20k km's ain't worth the worry or the money in my eyes. Now in saying that be careful where you get it done as well. My dad had an 03 wagon TDi that at around 100,000 km's he got the belt done at the dealer in Toronto. The Dealer in Richmondhill if I remember correctly. The tech didn't torque one of the pulley bolts enough and 10,000 km's after he got it done the car died on the side of the 407. Took it back to the dealer where they replaced the head on the engine and redid everything under the parts warranty. He started it up, and noticed that it didn't sound like what it was suppose to, so he turned around traded it in insisting that they had replaced half the engine and tranny in the last 10,000 km's so he should get top dollar. Got an 06 wagon PD and top money for his car, but the poor soul that ended up with that last wagon is going to have problems. So watch where you go to get it done and make sure they know what they are doing!