One problem related to brake sensor has been reported for the 2003 Mercury Marauder. The most recently reported issues are listed below.
I have had 17 warranty repair items. Overdrive problem on March 24. Valve body and temp sensor replace. Car has been at the dealer for 24 days. Purchased new on Feb. 8, car is currently in arbritation. I have asked for a buy back. Dealer refuses to fix loose carpet in rear floor.