Mercury Mariner Mercury Mariner

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Mercury Mariner repairs by problem area

Engine (24%)

Transmission and Drivetrain (18%)

Brakes and Traction Control (8%)

Suspension and Steering (17%)

Electrical and Air Conditioning (20%)

Paint, Rust, Leaks, Rattles, and Trim (8%)

Other (6%)

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Chart based on 216 repairs.
See TSBs and recalls for the Mercury Mariner.

Mercury Mariner transmission repair cost distribution

$2500+ (11%)

$1000 - $2499 (5%)

$500 - $999 (5%)

$100 - $499 (22%)

< $100 (57%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 37 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2011 Mercury Mariner 4dr SUV

240-horsepower 3.0L V6 6-speed automatic FWD

38000 mi

US $89
Computer reflash for sync system and poor shifting 

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2011 Mercury Mariner 4-door

6-cylinder automatic 2WD

2700 mi Car did not shift smoothly from first to second. 
29000 mi There is a TSB/fix for the drive train. The light came on, manual said when this happens to take vehicle to the dealer immediately, which I did. 

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2010 Mercury Mariner 4dr SUV

240-horsepower 3.0L V6 6-speed automatic AWD

77100 mi

US $300
Leaking transmission fluid 

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2010 Mercury Mariner 4dr SUV

171-horsepower 2.5L I4 6-speed automatic AWD

7000 mi 45 minute to complete service. 

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2009 Mercury Mariner

Engine not specified

23000 mi

US $10000
I was told there was no problem or they could not replicate it & they all do that. called Ford and told them I have had this SUV in the repair shop 5 times for the same thing and it still doesn't shift right. It gets stuck in gear. Slipsout 

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2009 Mercury Mariner 4dr SUV

240-horsepower 3.0L V6 6-speed automatic FWD

22700 mi Slow to engage gear from stop or accel out of corners. Dealer topped off fluid. A week later I pulled the battery cable to reset and the problem is gone for now. Fluid was a bit low, I suspect may have 1/2 shaft leak problem. 
29000 mi Slow transmission leak, TSB called for replacing filler tube/dipstick with updated part. So far, no leak. 
12000 mi Right front axle replaced by Ford to fix a leak in the axle seal. They tried to just replace the seal on two occasions and failed. Ford authorized the whole axle replacement. 

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2009 Mercury Mariner 4dr SUV

240-horsepower 3.0L V6 6-speed automatic AWD

58000 mi

US $414
Oil leak at left axle. Replaced seal, bushing & axle inner hub. 
46000 mi

US $900
First diagnosed as leaking shock; later identified as bad gaskets causing leaks throughout drivetrain. 
16000 mi Serious transmission seal leak. Shifting problem with transmission. 
16000 mi Seal leak reappeared after more than a week. Fixed again. 
16700 mi Transmission was shifting very roughly in cold weather in the early morning. 
27500 mi Transmission Seals leaked 
30000 mi Rough shifting, Transmission Leak. Fourth repair for this problem. 
25700 mi Rough shifting and fluid leak. Repair corrected the problem, but it has returned in the past several days. 
36000 mi Rough shifting, fluid leak 
59700 mi Rough Shifting, fluid leak 

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2009 Mercury Mariner 4dr SUV

171-horsepower 2.5L I4 6-speed automatic FWD

27000 mi Transmission not shifting right. Shop took out unit and bench checked. Found metal shavings. Parts were on back order. Ford sent whole new tramsmission. Ford took care of. Still under warranty. Did not cost me a cent. 
95000 mi

US $200
Leaking trans fluid from driver side cv joint coming out of trans. 
13700 mi auto transmission now subject to recall, noticed by owner earlier 

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2008 Mercury Mariner 4dr SUV

200-horsepower 3.0L V6 4-speed automatic FWD

13000 mi Shudder in drivetrain when accelerating from a coast. 
74300 mi

US $270
The traction control warning light on the dashboard would illuminate. The 4x4 control module needed to be replaced. 
36000 mi Noticed tiny transmission fluid leak at 36K miles. This coincided with scheduled service. Dealer diagnosed the problem related to the transmission fluid cooler/radiator. It was replaced free. Later I got a recall notice for same issue. 

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2008 Mercury Mariner 4dr SUV

200-horsepower 3.0L V6 4-speed automatic AWD

19000 mi Transmission cooler defective. Vehicle was inoperable. 
61300 mi

US $100
Transmission cooling line to radiator developed a leak. Replaced line and fluid. Also engine oil changed. 

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2008 Mercury Mariner 4dr SUV

153-horsepower 2.3L I4 4-speed automatic FWD

44000 mi

US $3731
Car was loaned to parents to take two 3 yr olds to Disney World. Transmission totally failed at highway cruising speeds with no warning/previous incidents. Resulted in rapid deceleration and left them stranded at night. NOT SAFE! 

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2008 Mercury Mariner 4dr SUV

133-horsepower 2.3L I4 Hybrid CVT AWD

163000 mi

US $1100
transfer case wore out, metal flakes in oil 
21000 mi

US $1620
Cvt replaced 

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2007 Mercury Mariner 4dr SUV

133-horsepower 2.3L I4 Hybrid CVT AWD

169000 mi

US $286
Seals were going bad and differential fluid was leaking from a rear axle and from the driveshaft seal. The seals were replaced and the fluid was refilled 
130000 mi There was a problem with Transmission that it was showing Check Engine light. The car suddenly stopped a few times with a warning 'Safely stop when possible' and could not be accelerated. But after a small time delay, could run it. 
159000 mi

US $200
CV Joint boot was off and it was making a loud squeaking noise. 

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2006 Mercury Mariner 4dr SUV

200-horsepower 3.0L V6 4-speed automatic FWD

83000 mi

US $2500
Transmission failed and was replaced by the owner. 

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2006 Mercury Mariner 4dr SUV

200-horsepower 3.0L V6 4-speed automatic AWD

129000 mi

US $2800
Driveshaft bearing (in the middle of the driveshaft) failed. Not serviceable, had to replace entire driveshaft. 

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2005 Mercury Mariner 4dr SUV

200-horsepower 3.0L V6 4-speed automatic AWD

109000 mi

US $936
Car had vibration at low speed and start up 0-20mph. Replaced driveshaft. 

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2005 Mercury Mariner 4dr SUV

153-horsepower 2.3L I4 4-speed automatic AWD

10000 mi Park release switch on shifter malfunctioned. Replaced under warranty. 
65000 mi

US $100
ABS sensor ring on right wheel hub broken/slipping. Dealer replaced entire front right axle under extended warranty. Also had issue with squeaking drivers window in cold weather which was also fixed by lubricating the slides at this time. 
88000 mi

US $1800
Vehicle would not idle in drive without stalling. This happened shortly after a long towing trip. Torque converter and transmission valve control body replaced by transmission shop. 

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Mercury Mariner Transmission Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently Mercury Mariner problems occur, check out our car reliability stats.