G12+ coolant

Tom in PT

Veteran Member
Joined
Jun 7, 2017
Location
Twilight Zone, WA State
TDI
2005 Passat sedan - SOLD; 2013 Passat DSG; both purchased new
Has a consensus emerged on whether the heater core problems in a Gen2 (2013) Passat with G13 factory coolant are going to recur with G13 coolant after the heater core is replaced? Is a changeover of the coolant to G12+ coolant necessary for longevity of the heater core?

I just had a heater core replaced at 27,000 miles, about 6,000 miles after the emissions modification was done, and the dealer refilled the system with G13. I do not want to have to replace the core again in another year or two.

There are a lot of discussions back and forth on this issue in many other heater core threads but I cannot find a definitive answer one way or another.
 

jrm

Veteran Member
Joined
Jul 24, 2013
Location
Oregon
TDI
2013 Passat SE with nav (totaled)
nope, wife ate a jeep head on before I could verify. the G12+++ was doing quite good up until that point.
 
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