My Q7 all of a sudden started blowing warm air and first dealership said that it might be $300 to blow some freeon but later he said it'll be $600 to replace AC Pressure sensor and now, after 5 more days, they are saying AC Compressor failed and have to be replaced as well so, now they are asking for $2k. Can compressor fail all of a sudden within 6 yrs.

This is ridiculous and i was wondering if someone else had similar issue or dealt with dealership on this.

Thanks