Wrong Anti-Freeze/Coolant May Cause Heater Core Leaks on Volkswagen Jetta

Heater core leaks are common in this model, more so if the wrong anti-freeze/coolant is used in the cooling system.

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Average mileage: 122,750 (85,000–182,000)
17 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2004, 2005, 2006, 2007, 2008, 2009, 2010
23 people reported this problem
4 people shared problem details
Heater core failed in 2008. Began leaking when A/C was on quite badly in 2010. Heater failed completely in 2011. Didn't have the $500 which covers the labor (independent garage not VW) to pull the entire dashboard to replace the heater core. Bypassed heater in the meantime.
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coolant leak
VW Jetta 2008 Wolksburg only use VW coolant
First leaking from front antifreeze had fixed now heater core spitting antifreeze to inside car

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