One problem related to defogger heater has been reported for the 1998 Lincoln Mark Vii. The most recently reported issues are listed below.
1997/98 Lincoln & Ford vehicle a/c/heat blend door failures that cause fogging of windshields in cold or damp weather.
| Exterior Rearview Mirror problems | |
| Defogger Controls problems | |
| Defogger Heater problems |