Goat Eyes
Striker
They may not have known but they’re still responsible.What if the dealer didn’t know, so didn’t declare. The only way of realistically knowing if a car has had a remap is by getting in on an OBD machine and someone who knows what to look for regarding the changes to the ecu.
Theres plenty cars going through the trade which have been mapped and undeclared by the seller to the trade. It certainly isn’t something you would say on a trade in.
Have you had the timing belt cover off to look at the timing belt, or are you talking about the auxiliary belt (fan belt). Certainly not the end of the world by the way. Just get the jobs done if needed.