THE WEEKLY DRIVER

AUTOMOTIVE NEWS, CAR REVIEWS, AND PODCAST

Reliability Database

Mercury

Engine Reliability & Known Problems

Based on 12,129 NHTSA complaints. Updated July 2026.

15 Models
107 Engines Rated
24 Generations
12,129 NHTSA Complaints
Engine Ratings Overview
57 recommended 31 caution 19 avoid

Compact Sedan

15 models
Cougar
1 generation · 9 engines
2000-2002
7 recommended 1 caution 1 avoid
Grand Marquis
1 generation · 8 engines
2000-2011
5 recommended 1 caution 2 avoid
Marauder
1 generation · 2 engines
2003
1 recommended 1 caution
Mariner
1 generation · 9 engines
2005-2011
5 recommended 4 caution
Mariner Hev
1 generation · 3 engines
2011
1 recommended 2 caution
Mariner Hybrid
5 generations · 11 engines
20062007200820092010
4 recommended 5 caution 2 avoid
Milan
1 generation · 7 engines
2006-2011
3 recommended 2 caution 2 avoid
Milan Hev
1 generation · 3 engines
2011
1 recommended 1 caution 1 avoid
Milan Hybrid
1 generation · 4 engines
2010
2 recommended 1 caution 1 avoid
Montego
3 generations · 7 engines
200520062007
2 recommended 2 caution 3 avoid
Monterey
1 generation · 2 engines
2004-2007
1 caution 1 avoid
Mountaineer
3 generations · 16 engines
200020012002-2010
8 recommended 5 caution 3 avoid
Mystique
1 generation · 5 engines
2000
2 recommended 3 caution
Sable
2 generations · 12 engines
2000-20052008-2009
9 recommended 3 avoid
Villager
1 generation · 9 engines
2000-2002
7 recommended 2 caution
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