My 1998 A4 has 105,000 miles. My thermostat was stuck open - evidenced by the lack of heat in passenger cab and the constant cold temperature reading on engine coolant gauge. I just got the thermostat replaced and now have normal readings on the engine temperature gauge. However, I still do not have any heat available in the cab. Anti-freeze levels are OK. How can I determine if the problem is related to the heater control value, vacuum check value, blend door or other?
Sunday, February 4th, 2007 AT 11:24 AM