Bearsvw
Well-known member
January of 2017 I had my heater core replaced due to no heat on passenger side. Worked great last winter but now same problem. Has anyone had this happen to them.
Any my guess the problem is the design of the coolant system operating outside the coolants designed specifications.The heater core clogging is a symptom of a larger problem. Volkswagen is only addressing the symptom - not the actual problem. Expect this to continue happening and likely get worse as other coolant heat exchangers (oil cooler, EGR cooler, perhaps even the main radiator) get clogged, as well.
This is one of a number of reasons (on core #2) I'm doing the buyback next year....The heater core clogging is a symptom of a larger problem. Volkswagen is only addressing the symptom - not the actual problem. Expect this to continue happening and likely get worse as other coolant heat exchangers (oil cooler, EGR cooler, perhaps even the main radiator) get clogged, as well.