I ran into someone with the same car I have, him having issues with the air suspension (no kidding).


Here is a good side for spare parts if you want to keep this unique feature:


http://www.suncoreindustries.com/mer...andmarquis.asp


If you want to convert the air suspension to conventional springs, they offer it to. $99, very affordable.


As seen for around $66 here:


http://cgi.ebay.com/ebaymotors/Mercu...arquis-Rear-Co nversion-Kit_W0QQitemZ110014943419QQcmdZViewItem


Greetings!