Top Post Dawg
- Aug 19, 2009
- 2015 Passat SEL, 2017 Alltrack SE; BB 2010 Sedan Man; 2012 Passat,
I haven't seen too much info in this thread about the silicant from the reservoir clogging the heater matrix. Has anyone definitive information on this as there are dozens of threads across various forums. Much of what i have read is if this issue surfaces with your MK7 TDI - it's practically impossible to remedy? Many people have had to fit several new heater matrix's at £000's of expense.
Do you guys have pouches or pods in the coolant bottle? Our NMS has pods, i've heard the pouches are the ones that rupture and cause issues.
My un educated guess is the high EGR and crazy high CAIT the W2A inter cooler bakes the coolant.