mileage of car : 68,000. engine light on because of thermostat...does it need to be replaced or can one safely postpone this repair?
reasonable cost of replacing thermostat? on 2005 Audi Allroad Quattro
What are the symptoms? Did a shop diagnose it? Personal opinion - - yes t-stat should last longer, but it is a mechanical device made by humans , subject to failure,. It won't fix itself , so as long as that actually is the problem , then , yes I would recommend replacing it.