2009 Acura MDX Acura MDX 2009

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2009 Acura MDX repairs by problem area

Engine (18%)

Transmission and Drivetrain (12%)

Brakes and Traction Control (2%)

Suspension and Steering (15%)

Electrical and Air Conditioning (29%)

Paint, Rust, Leaks, Rattles, and Trim (18%)

Other (7%)

Chart based on 120 repairs.
See TSBs and recalls for the 2009 Acura MDX.

2009 Acura MDX engine repair cost distribution

$2500+ (5%)

$1000 - $2499 (9%)

$500 - $999 (5%)

$100 - $499 (23%)

< $100 (59%)

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

Chart based on 22 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2009 Acura MDX

Engine not specified

11000 mi Throttle replaced at 5600 miles and then at 10800 - car shut down with no reason again. Dealer said it's a software update problem - comes and goes, nobody knows. 

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2009 Acura MDX 4dr SUV

300-horsepower 3.7L V6 5-speed shiftable automatic AWD

57000 mi Check engine and oil light, replaced sensors. All seemed to work for a while, then came back but not as bad...just warning lights. 
73400 mi Another light came on for check engine oil 
77000 mi

US $200
One of the sensors measuring exhaust wore out and had to be replaced. Mechanic said it was standard to have to replace such sensors occasionally. 
54560 mi

C $54
#5 cyl coil pack went bad causing engine light , shaw light and emission lights to come on . Engine had misfire . checked with obd2 code reader advised code for cyl 5. Pulled connection on #5 coil to determine any difference in engine sound while engine running. also swapped out #5 coil pack with cyl 6 and tested it to determine that coil was indeed bad. Cost of new ignition coil $54.00 cdn. replacement was easy maybe 5 mins. 
106000 mi

US $1400
Replaced timing belt, water pump, hoses, spark plugs 
116000 mi

US $70
Exhaust noise 
60000 mi

US $2100
Engine oil leak. Also replaced timing belt. 
60760 mi Low oil level would flash on driver information display occasionally, and then go out, even though oil level was OK on dip stick. 
117490 mi

C $4000
Oil leak on front of engine. 
136000 mi

US $289
O2 sensor was replaced. Took 2 hours to do. 
7000 mi Throttle body replaced due to problems with throttle body sensor malfunctioning. This in turn led to stalling, racing, and engaging "limp home" mode. 
9000 mi Computer system failure. Complete replacement of ECU.  
29000 mi Throttle position sensor failure, in "Limp Home Mode" 
26000 mi

US $80
Complete lack of throttle/engine response suddenly at highway speed. Multiple error codes. Dealer cleared multiple error codes but did not find a problem. 
38400 mi Cold start up noise (brief whirring/squeal) when extremely cold as soon as key is turned. Dealer unable to determine cause based on video provided by owner of noise or after 2 over night sits at the dealer (not duplicated). 
38800 mi

US $50
Squeak/chirp from passenger side of engine bay. Accessory belt and tensioner replaced. 
77200 mi

US $130
Oil pressure sensor going bad (check oil light on), Oil levels ok. Replace oil pressure sensor. 
92800 mi

US $600
Oil pump leak at time of TB replacement service. Replaced oil pump with water pump and TB maintenance service. 
49500 mi

US $90
Loose heat sink caused humming noise at specific rpm range 
98580 mi replaced fan belt and heat shield 
145700 mi

C $200
Check for coolant leak 

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See TrueDelta's information for all Acura models.

2009 Acura MDX Engine 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 2009 Acura MDX problems occur, check out our car reliability stats.