NHTSA Complaint #11616323 — 2015 VOLKSWAGEN GOLF SPORTWAGEN

The emissions modification calibration by Volkswagen causes the coolant to be exposed to elevated temperatures due to higher exhaust gas recirculation (EGR) use to control emissions. These elevated higher temperatures degrade the coolant faster than designed and lead to precipitates falling out of solution in the factory filled G13 coolant. This causes buildup and deposits to form throughout the cooling system, particularly in the heater core which can block proper coolant flow & lead to coolant system failure, specifically of hoses associated with the heater core. When these fail the engine can over heat, and stop which causes loss of steering, propulsion and braking abilities. There is a similar problem on 2012 models with the TDI engine, which has been addressed but the 2015 models are being stranded on the roads creating a safety hazard to the drivers of the vehicles and other motorists on the road.