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EnginePart report

2009 Mercury Milan Engine Problems

Complaints
5about this part
Share
2%of 226 total for the year
Median mileage
103,204miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine of the 2009 Mercury Milan, 2% of the 226 complaints for this model year. Where a mileage was given, the median is 103,204 miles. 1 of these say a crash was involved, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I was driving up the hill & slowed down for the speedbump. I started applying the brakes to turn right into the driveway but the car lunged forward, causing me to miss the driveway & turn into the yard. As I stepped on the brake the car continued to speed up so I screamed at my husband james I can't stop the car! He yanked the handbrake up but it didn't stop or slow down and the engine made a continuous high pitched racing sound. We crashed into the house, damaging it & breaking my left arm! The car was totaled. All this occurred in just a matter of seconds. …”

NHTSA complaint #11047938, filed 2017-11, 120,000 miles

“While driving often times my vehicle reduces speed drastically, while pressing on the gas. This is very dangerous especially when on the highway because of the sudden reduction in speed. Most of my driving is done on the highway. It takes a long time for the vehicle to pick up speed again. Also it does this when I am stopped at a red light which is also a concern for me with my child in the car. I tried to get this problem diagnosed but it drives fine while at the mechanic shop. My vehicle has been doing this since my purchase with only having 42,000 and some miles on it. …”

NHTSA complaint #10726327, filed 2015-06, 42,000 miles

“The contact owns a 2009 Mercury Milan. While driving 50 MPH, the vehicle began to decrease in speed when the accelerator pedal was depressed. The throttle control light illuminated during the failure. The failure recurred randomly. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure. The failure mileage was approximately 150,000.”

NHTSA complaint #10894729, filed 2016-08, 150,000 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
20112211%
201015916%
200952%
2008123%
2007133%
200684%

Other parts of the 2009 Mercury Milan

Brakes
115 complaints
Air bags
85 complaints
Vehicle speed control
10 complaints
Other or unknown
6 complaints
Body and structure
6 complaints
Transmission and drivetrain
4 complaints
Electrical system
3 complaints
Equipment
2 complaints
Fuel system
2 complaints
Latches, locks and linkages
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Electronic stability control
1 complaints

← All problems reported for the 2009 Mercury Milan

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology