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Mazda CX-9 repairs by problem area
Engine (13%)
Transmission and Drivetrain (13%)
Brakes and Traction Control (9%)
Suspension and Steering (21%)
Electrical and Air Conditioning (26%)
Paint, Rust, Leaks, Rattles, and Trim (10%)
Other (7%)
Select a problem area
- Engine
- Transmission and Drivetrain
- Brakes and Traction Control
- Suspension and Steering
- Electrical and Air Conditioning
- Paint, Rust, Leaks, Rattles, and Trim
- Other
Chart based on 924 repairs.
Mazda CX-9 transmission repair cost distribution
$2500+ (6%)
$1000 - $2499 (16%)
$500 - $999 (13%)
$100 - $499 (15%)
< $100 (50%)
Chart based on 106 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2014 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic AWD
| 71000 mi | PTU Replacement |
2013 Mazda CX-9
Engine not specified
| 56000 mi US $751 |
and axel. |
2013 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic FWD
| 141000 mi US $400 |
Replaced torn CV boot |
2013 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic AWD
| 57248 mi | AWD transfer case replaced under Mazda extended warranty |
| 41000 mi | Drive shaft for all wheel drive to the rear wheels. Seal at the trans case started leaking.. Nothing major and was still under warranty |
| 88000 mi US $25 |
Oil bubbling from awd transfer case. Googled issue and found a method to suck out and replace the gear oil. Replaced gear oil. |
| 27300 mi | The transfer case was leaking Transfer case replaced |
| 38000 mi | Transfer case failed. Replaced under warranty and Mazda added 2 yrs to powertrain warranty to cover this part. |
2012 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic FWD
| 95000 mi US $725 |
Transmission began shifting into D (from P, R or N) very harshly a few months ago. I located a TSB that identified this issue as "shift shock" and indicated that a TCM re-flash would correct the issue, if TCM could be reflashed. Based on production date/VIN, the TCM itself could require replacement. A new TCM lists for just over $1k! Luckily, my TCM was one that could be re-flashed. The intial charge for this was $159, but I negotiated it down to $75. I have also noticed some odd behavior in the transmission's downshift behavior. It has always been aggressive about downshifting for engine braking, but it had become overly-agressive on an intermittent basis. The dealer traced this to a faulty Throttle Pedal Position Sensor. The price for this repair was around $375. Finally, they were very insistent that new Synthetic ATF was essential to ensure everything worked well. I was fine with the change, but the $349 price tag was a different story. I did some research, we went back and forth a few times and finally I got them to agree to do it for $210. It's still steep, IMO, but it's worth it for the peace of mind. |
2012 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic AWD
| 29140 mi | Removed and replaced oil seals on output shaft. Rear axle seals were leaking fluid. |
| 76880 mi C $3400 |
Rear Dif and/or transfer case, control solenoid, rebuild. |
| 14000 mi | Transfer case output seal leaking causing burning oil smell due to proximity to exhaust system. The dealership replaced the seal and all seems fine now. |
| 25700 mi | Replaced transfer case for ongoing burning smell when going uphill. Related to previous repair attempt of replacing output seal. |
| 43000 mi | front wheel drive system leaking and replaced under warranty |
| 13000 mi | Differential started to leak. Was replaced with a brand-new unit, which started to leak again. Another replacement of seals in the differential and the car appears fine. Tool altogether 3 trips within the span of a month. |
| 22940 mi | Engine light came on. Loss of power and transmission disfunction. Gears not shifting properly. |
| 62620 mi C $800 |
Rear wheel bearing making grounding noise. It was replaced |
| 59000 mi | Power transfer case |
| 44000 mi | 4 wheel drive system failed completely and dealer installed brand new(transfer case/transaxle) |
| 71000 mi US $100 |
Transmission had to be replaced. It started with a leak in one of the valves that resulted in all the fluid leaking and then the whole transmission failed |
| 99000 mi US $900 |
Differential, just a fluid change. |
| 26000 mi | Transfer case seal failed, transfer case replaced. |
| 59000 mi US $600 |
Rear passenger axle seal replaced Hard shifting transmission. TSB active for this transmission. Dealer did software update |
| 26040 mi | Replaced Front Transfer case |
2011 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic FWD
| 46000 mi US $375 |
Dealer mechanic disassembled LF axle assembly and added grease to location recommend by factory TSP. |
| 113000 mi | Right front CV joint leaking. Replaced. |
2011 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic AWD
| 48800 mi US $7 |
Had been making a low frequency "whining" noise when driving around 25-40mph. Mazda dlr said it needed a new power transfer unit, which also started to damage the transmission; both were replaced for free; retail cost: $9K! Free loaner suv. |
| 65100 mi $560 |
Symptoms were harsh engagement from neutral to drive, hard downshift into 4th gear and fluctuations in throttle with cruise control on going uphill. TCM replaced to remedy harsh engagement and shifting. Transfer case replaced as oil condition poor and quantity low. Splines also worn. |
| 55000 mi | The transfer case failed, and when it was removed the tech discovered the transmission was also damaged. They replaced both under warranty. |
| 19000 mi | Rear axle seals replaced |
| 103000 mi | Transfer case was replaced, as were the rear axle seals. |
| 15000 mi | valve body leak |
| 23100 mi | In cruise control and 40-55 mph on a slight up slope the transmission will surge about 500 rpm between 1500 & 2000 many many times before it will shift or lock on to a given rpm |
| 41000 mi | Surging since car new. Found tsp that addressed the problem called madza got them to look at it. Couldn't make it do it for the factory rep but he agreededto do the latest update to the software. Problem solved |
| 59700 mi | Had to replace transfer case. Total cost was under warranty. |
2010 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic FWD
| 55000 mi | Whine noise at low rpm at 40-50mph. Transmission replaced under warranty |
2010 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic AWD
| 123000 mi US $2000 |
All four differential mounting bushings (rubber) were badly deteriorated and replaced. The rear two are a difficult and costly repair. |
| 37820 mi | required new transfer case |
| 104500 mi US $1700 |
transfer case went bad replaced with new one |
| 58000 mi US $600 |
Power transfer unit cracked and needed to be replaced |
| 67000 mi US $1400 |
Noise when accelerating from transmission. Replaced transfer case. Not covered under warranty, as my car is over 60k miles and no longer covered under powertrain warranty. |
| 47500 mi | Transfer case failed. Able to drive to dealer. 4 hour repair. |
| 10500 mi | Sulfur smell was caused by a bad AWD transfer case; the smell was the oil inside burning up. Dealer replaced the transfer case under warranty; problem is resolved. Replaced bad AWD transfer case under warranty. We experienced a bad sulfur smell for several weeks, which was finally diagnosed as the oil in the transfer case burning up. |
| 42000 mi | Passenger side front axle came unseated under hard acceleration. Dealer re-seated. Did not require replacement this time but might if it reoccurs. |
| 40000 mi | leaking transfer case |
| 80000 mi US $3100 |
AWD Transfer case failed and also damaged transmission. Very disappointed to say the least. |
| 6500 mi | Minor leak from rear differential oil seal (right side). Oil seal replaced. |
| 67000 mi | Transfer case failing - covered by Mazda up to 100k miles per recent mfg letter |
| 48800 mi | all wheel drive not operating. in snow car will not move only front tires spin and truck seems to lose power and go nowhere dealer says computer firmware needed or bad transfer case will be taking car back to dealer 2/21/2013 keep you posted |
| 20700 mi | Car to dealer 6 times (start 6/2013) for toxic smell from engine entering cabin. Nothing found and disregard of Mazda. Car FAILS in 03/2014. Took to shop. Transfer case failure and smell was caused by it. Transfer case changed. 9 months lost |
| 55000 mi US $350 |
Torque convertor hesitation |
| 57000 mi | Torque Convertor was failing requiring a new transmission and torque convertor. |
| 35000 mi | Torque convert was not coming out of lockup properly. Dealer changed transmission fluid under warranty and problem seems to be gone. |
2009 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic FWD
| 118500 mi US $1500 |
This is an AWD car and the transfer case went bad. There was a whining sound that started at 30mph. |
2009 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic AWD
| 143300 mi US $900 |
Transfer case was leaking badly. |
| 32000 mi | clunk from transmission when shifting from park, more prevalent on incline. Tech cleaned and lubed dirty shift linkage. |
| 23000 mi | Leaky transfer case replaced under powertrain warranty. |
| 78500 mi US $1729 |
Leaking left rear axle (397) and leaking transfer case ($384) |
| 185000 mi US $1700 |
Transfer case replacement. |
2008 Mazda CX-9
Engine not specified
| rattling sound when drive over 30 miles/hour. A screw in the driveshaft was misplaced. |
2008 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic FWD
| 1000 mi | Internal transmission failure on day 4 of ownership at 180 miles. Originally diagnosed as software problem but at 5 day in the shop they determined that the transmission was internally defective. A new transmission (not rebuilt) was ordered and installe |
| 100000 mi US $600 |
Replaced gasket and cover. |
2008 Mazda CX-9 4dr SUV
273-horsepower 3.7L V6 6-speed shiftable automatic AWD
| 88040 mi C $5000 |
Problem was a slight vibration in drivetrain at 50-60 Kph. Diagnosis was torque converter problem caused by poor shifting by transmission. They ended up replacing both as well as the transaxle. |
| 65700 mi US $450 |
Rear differential gasket leaking. |
| 118300 mi US $1700 |
front diff had to be replaced, made a terrible grinding noise |
| 86700 mi US $2000 |
Power transfer unit was going out. Symptom was leaking thick grease in garage. |
| 99000 mi US $400 |
Transfer Case leaking and replaced under warranty |
| 78000 mi US $1650 |
AWD Transfer Case was leaking and the entire unit has to be replaced |
| 89000 mi US $1600 |
Passenger front mid-shaft bearing. The associated hub and shaft were replaced. |
| 67000 mi US $1405 |
Transfer case not operating properly. Leaking from the top of the transfer case. Technicians were able to troubleshoot problem to the transfer case and needed to replace. |
| 78000 mi US $2000 |
CV boot needed to be replaced on passenger front wheel. |
| 41200 mi US $200 |
Right front axle seal leaking. |
| 30000 mi US $150 |
Transfer case seeping around output seals, known issue with pressure release valve that was replaced to prevent more seepage |
| 75000 mi US $150 |
transfer case oil, supposed to be life time, but fluid was spent beyond its life, 75w-140 had turned to a greasy paste not oil any more, requiring 4 fill up and drains, no drain plug fluid is supposed to be lifetime, known failure area |
| 83000 mi US $900 |
driveline went bad, u joints failing and carrier bearings failed, not serviceable at all, had to replace entire driveshaft assembly |
| 91000 mi US $5000 |
transfercase, a common problem with these, complete failure |
| 17000 mi | Replace leaking differential side seal. |
| 19000 mi US $1 |
Replaced leaking left rear axle seal |
| 164700 mi US $25 |
Rear differential drain plug was leaking. Replaced plug. Probably cross-threaded. |
| 14900 mi | TSB 03-006/08 Excessive Vibration From Propeller Shaft. Propeller shaft was replaced. |
| 28800 mi US $577 |
Right rear axle seal and axle replaced. |
| 198000 mi US $6000 |
New front differential and drive shaft |
| 129200 mi US $221 |
Very slight leak at oil pan gasket. This should have been identified and repaired under Warranty a long time ago, but the dealership said nothing was wrong. Independent shop replaced RTV seal - no more leaks. |
| 65000 mi | Rear differential leaking oil. |
| 84000 mi US $300 |
Torque converter failure imminent. Lock/unlock BADLY during steady-state driving. Can be defeated by selecting "Manual" shift mode on transmission. Tech determined bad TC. Cannot replace; integral to transmission. Not replaced. |
| 63000 mi US $350 |
Torn CV boot. Needed new CV joint. |
2007 Mazda CX-9 4dr SUV
263-horsepower 3.5L V6 6-speed shiftable automatic FWD
| 139000 mi | Transmission making a whine noise in 6th gear |
| 38000 mi | Trans made metallic clicking noise when first moving from a dead stop, forward or reverse. Lubed transaxle linkage, under powertrain warranty. Trans made metallic clicking noise when first moving from a dead stop, forward or reverse. Lubed transaxle linkage, under powertrain warranty. |
| 64000 mi US $4500 |
Transmission was failing did not want to spend 4500.00 to repair the transmission. |
| 69000 mi US $1100 |
Coil codes due to faulty PCM. |
| 73000 mi US $982 |
Transmission fluid flush |
2007 Mazda CX-9 4dr SUV
263-horsepower 3.5L V6 6-speed shiftable automatic AWD
| 91800 mi US $1700 |
Transfer case had slow leak. Gear lube dried out, transfer case failed. Rear wheel drive cannot engage during low traction, 4wd dashboard light flashes when rears should be turning. |
| 130000 mi | Transfer case still had a slow leak. |
| 75000 mi | Noticed rear differential leaking, took to dealer. They found the seal had worn the differential housing, so the entire housing had to be replaced. Luckily extended warranty paid the $3,800. |
| 75000 mi | 4 wheel drive pto replaced |
| 139000 mi US $120 |
slipping in 6th gear at 50mph, sometimes 5th gear - but only at 50mph. Replaced transmission fluid to attempt to fix. June 2017 update - not transmission, fuel injectors, improvement with adding fuel injector cleaner |
| 34000 mi | Installed a new transfer case. |
| 79000 mi US $1300 |
Replaced PTU after seal leaked. Replaced PTU after seal leaked. |
| 31000 mi | Clinking noise when transmission engages. TSB was issued for this problem. Sanded down some part in the axle and resolved the problem. |
| 96500 mi US $250 |
Replace cracked serpentine belt |
| 151000 mi US $2500 |
replace drive axle, radiator and flush brake fluid |
| 4000 mi | AWD system not working. No power was going to the rear wheels. Dealer determined that PTU/transfer case had failed and replaced it. AWD not working - no power going to rear wheels. Dealer replaced transfer case. |
| 25500 mi | Rear differential oil seals leaking. Both left and right output shaft seals replace. Vehicle still under drive train warranty. Duplicate entry. Rear differential oil seals leaking. Both left and right output shaft seals replace. Vehicle still under drive train warranty. |
| 243000 mi US $850 |
Transfer case needed replacing. Bought new one and replaced. Changed rear differential fluids when at it. |
| 59000 mi US $637 |
Rear axle seals leaking. Seals replaced. |
| 75000 mi US $355 |
Rear axle seals leaking - replaced. |
| 99000 mi US $130 |
Rear differential pan cover leaking - resealed |
| 100500 mi US $1500 |
AWD differential completely failed |
| 171000 mi US $1350 |
Replaced transmission take off unit, $1350 symptoms were a whining engine. Replaced transmission take off unit, $1350 symptoms were a whining engine |
| 215000 mi US $700 |
Rear drive not engaging - our AWD is currently a front-wheel drive. Had a grinding noise but has not worsened so we left it alone for now. |
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See TrueDelta's information for all Mazda models.
