First of all you have an exhaust filter. If it's going to stay there you need to drive it as needed to clean it. This does not sound like a problem from your post but if it is the filter and maybe egr simply has to go. The console will tell you when to drive to clean the filter. If you can't maintain it I see no other option
Idling is not good for any diesel.
By idling a diesel valves, egr, and all other components can become gummed up by diesel and or oil deposits. When it is off the valves can stick and cause permanent severe damage when you start it up. The problem is much worse in cold weather.
A high idle is required to help prevent this condition known as coking and can be achieved by an optional high idle uplifter switch
Perform required maintenance according to the hour meter rather than miles. Regular oil sample analysis is recommended.
No matter what you do there will be negative impact on the vehicle to a great extent.
Or, get a generator and find another suitable source of climate control such as Marine-Air blowing through the back window.
Last edited by DavidPhillips; 07-19-2009 at 08:29 AM.