I have a 2006 Audi A6 3.2L. I was wondering if the coolant ever needs to be flushed & changed on these cars. Or is it lifetime coolant. Any input would be appreciated. Thxs

 

Check the owners manual for the car. No car coolant I know of is good for over 5 years.

 

The coolant gets changed when you replace your timing belt. Coolant gets added (introducing fresh additives and extending the life of the coolant) when you replace your expansion tank and again when you replace your secondary water pump. So, no, there is no need to replace coolant on its own. Replacement will happen.

Bob