Defogger Heater Problems of Nissan Sentra

2012 Nissan Sentra. Consumer writes in regards to inadequate cabin heat in winter. The consumer stated he noticed this past winter, the vehicle did not heat up to normal operating temperatures on a timely basis when the outside temperature was roughly 15 degrees or colder. Instead, the coolant temperature gauge moved about 1/3 of the way and just stayed there for an extended period of 20 minutes or more. As a result, the heater put out only minimally warm air. Eventually, the vehicle fully warmed up and the heat output was normal. The dealer was aware there was a problem, but was unable to correct it, and they had not received any technical advice or assistance from Nissan.

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I purchased my 2005 Nissan Sentra in December 2005. In September 2007, I began noticing that my car was overheating. In addition to my car overheating, the heat stopped working. I do not have very much money and my warranty has already expired so I had a family mechanic look at the car. I had the water-pump replaced, the radiator flushed, the heating and cooling sensor replaced, belts and hoses replaced. After having so many things done to my car, the problem was still not solved. I then decided to take it to a repair shop. The repair shop flushed out my radiator. When I picked up the car, the heat was working and it was fine. The repair shop is literally across the street from where I live. Before I got home, the car overheated and the heat went out. I took the car right back to the repair shop and the mechanic told me that I must have a head gasket problem. Ok, so I went back to the family mechanic because the repair shop wanted to charge over $1000 to replace the head gasket (which I didn't have). The family mechanic replaced the head gasket for me though he didn't see holes or cracks in the original head gasket. This still did not solve my problem. I finally decided to take my car to the Nissan service dept. They told me that I needed a radiator, I paid $560 just to have them replace the radiator. When I picked up the car, I didn't make it home before the car began to overheat again and the heat went out. I took the car back to Nissan service dept. This was five weeks ago. I still do not have my car. They are telling me that I probably need a head gasket. I gave the ok to replace the head gasket which will cost over $1500. I am still awaiting my car but am not sure that this will solve my problem.

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I have had my 2001 Nissan Sentra a little over 3 years and we have had many recalls and the last one on April 13, 2004 the dealer left a piece of foam insulation and my air conditioner ( does not work) and heater works now since removed the insulation away from the blower motor. I called the dealer and they were nasty with me when I brought up that this should of been covered under bulletin # ntb00091 and ntb00091b. If there was a faulty airconditioning system when the car first came out then someone should of been told. I am very upset that this was not told to me when I bought the car.

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The heater core of the radiator failed. Defrost coolant spilled into the passenger side in the front and coolant got into the vent system. We noticed the defect because the windshield would not defrost. According to the dealership, the active ingredient of the coolant is ethylene glycol. When we asked why the coolant would spill into the car and into the vents, the dealership service director informed us that "it is the only place it could go. " the manufacturer took care of the cost of repair of this part. However, we are concerned that the car is designed such that coolant would be leaked into the vents and that there is no mention of this possibility in the vehicle booklet. We are also concerned that people who suffer a similar situation will not be aware that they may be inhaling coolant through the vent system for long periods of time without knowing that they are being exposed to this component.

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Main air flow not operational.

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