Guido, you wrote:

>Hey Afshin. If you have low miles on your 500, You can wait on the timing chain. I'd replace the rail and chain and tensioner about 85K.

That soon? I had not planned on doing mine until the mid-90s at the earliest. But this car has zero startup rattle, zero racka-racka sound, and generally seems to be perfectly behaved.

>Its not a bad idea changing out the hoses. I havn't change the rears. I did the fronts, at 84K with a new waterpump,waterpump bypass,upper and lower rad hoses.

Water pump bypass? Would that be a valve to allow coolant
to still flow around a seized pump?

A good idea, sounds like. Can you give details and part suggestions?

s/b