2008 Mazda CX-9 Mazda CX-9 2008

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2008 Mazda CX-9 repairs by problem area

Engine (12%)

Transmission and Drivetrain (10%)

Brakes and Traction Control (5%)

Suspension and Steering (21%)

Electrical and Air Conditioning (29%)

Paint, Rust, Leaks, Rattles, and Trim (17%)

Other (5%)

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Chart based on 265 repairs.
See TSBs and recalls for the 2008 Mazda CX-9.

2008 Mazda CX-9 electrical repair cost distribution

$2500+ (3%)

$1000 - $2499 (11%)

$500 - $999 (9%)

$100 - $499 (21%)

< $100 (56%)

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Chart based on 66 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2008 Mazda CX-9

Engine not specified

58900 mi There was a power leak that caused the battery to run out of power. I had 3 companies check the problem, but non could find the cause. That’s why I sold my CX-9. 

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2008 Mazda CX-9 4dr SUV

273-horsepower 3.7L V6 6-speed shiftable automatic FWD

34000 mi Front AC blower remained on after turning engine off. R&R relay under original warranty. 
56000 mi

US $30
a/c wouldn't turn off with car. replaced relay. 
4000 mi Faulty clock was losing 30 seconds every week. 
94000 mi

US $400
When ignition is turned off, rear air blower comes on at full blast. This is a known and common issue for the CX-9. Dealer knew exactly how to replace the relay to fix. 
36200 mi Back A/C on after engine turned off. A/C relay replacement fixed the problem. 
28000 mi

US $20
The small parking yellow bulb blew. 
75000 mi

US $500
Drivers electric door actuator failed Replaced with new. Part was 180 rest was labor 
17000 mi Bluetooth hands-free system did not work. Factory installed incorrect wiring harness for upgraded sound system. Dealership replaced with correct harness and system now works flawlessly. 
8000 mi REAR POWER LIFT GATE WOULD NOT CLOSE WHEN POWER BUTTON WAS PRESSED, INTERMITTANT PROBLEM. THE SHOP COULD NOT FIND THE PROBLEM AND IT HAS BEEN WORKING FINE EVERY SINCE. 
101500 mi

US $85
AC drain tube was blocked. Water was dripping down into both front floorboards. Cleared blockage so water would drain correctly. 
125900 mi

US $150
Seat switch that controls the tilt of the seat stopped working. Bought switch at recommendation of shop, only to learn that the problem is with the control module, and don't want to spend any more fixing this. 
162000 mi

US $50
AC drain tube was blocked. Water was dripping down into both front floorboards. Cleared blockage so water would drain correctly. Second time. 
10000 mi sirius radio not functioning properly 
27000 mi  

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2008 Mazda CX-9 4dr SUV

273-horsepower 3.7L V6 6-speed shiftable automatic AWD

81000 mi

US $450
Both credit card style keys for the car have problems. One is not recognized by the car at all, and will not start the car even with the inserted manual key. The other cannot maintain contact with the battery, so only works part-time. 
49000 mi

US $850
Blind spot monitoring module on the left side failed and needed to be replaced. 
77000 mi

US $85
Faulty TPS sensor. 
88000 mi

US $23
Replaced front and rear blower relays 
78000 mi

US $2000
Drivers window no longer working. Needed new motor. Working after repair, but auto up or down no longer working. 
43000 mi

US $90
HVAC fan relay replaced. Known problem on CX-9. 
46000 mi

US $32
HVAC fan relay failed 
74000 mi

US $834
AC condensate drain plugged. Reservoir filled with water destroying the blower motor 
88000 mi

US $100
door lock failure. 
110000 mi

US $300
exterior electric switch for lock in the driver door. 
56000 mi

US $60
Air filter and blower clogged with dust causing condensation to pool and overflow into passenger footwell. cleaned out dust. blower shorted, replaced blower 
74000 mi

US $50
Replaced front passenger power window regulator. 
94000 mi

US $50
Aux port died and needed to be replaced 
60800 mi

US $890
Air conditioner would not stop after engine shut off. 
44000 mi The fuel gauge was not reporting the correct amount of fuel remaining in tank and I ran out of gas. Fuel gauge was faulty. Replaced by dealer no charge. 
36000 mi Rear AC unit not responding to rear inputs, could only be controled thru the front panel. rear sending board was replaced 
66300 mi

US $220
Air Bag Connector 
15000 mi

US $64
Defrost did not work on remote start. 
5000 mi Parking lights did not illuminate when vehicle was remotely started. Dealer repaired broken wire. 
8000 mi

US $68
Climate controls were inactive when vehicle was remote-started. Replaced wiring harness. 
17000 mi Repaired loose wire in Mazda remote start wiring harness. 
17000 mi Dealer forgot to initialize remote start remotes at last visit. 
20000 mi Remote start not working. Dealer unable to duplicate, started working without any repairs. 
34500 mi

US $250
Heater fan making a ticking sound. Fan replaced. 
42340 mi

C $500
Key fobs ordered. 
46500 mi Navigation/Rear View camera screen resolution completely washes out during daylight. Dealer admitted that it appears to be a problem and promised to look into a warranty replacement. 
52080 mi New navigation unit ordered by dealer. Seems to be difficult to obtain. 
134000 mi

US $1046
"White Powder" being released into the ventilation system from a deteriorating evaporator core, and blowing out of the vents into the vehicle. This was possibly the result of an earlier clog in the evaporator drain line. 
142000 mi

US $15
Replaced blower fan relays (front and rear) due to ventilation fan staying on for up to a minute after vehicle was turned off. Known issue for this model. 
13000 mi TSB - repaired power driver seat wiring harness. 
15000 mi TSB - faulty ABS warning light 
20000 mi Auto climate controls going crazy in cold weather. 
20800 mi A/C fan coming on when car parked (bad relay) 
17000 mi Remote start control unit needed replacement. 
36300 mi

US $577
Battery was dead and replaced. 
89500 mi Needed another new battery. 
23000 mi Replaced blower motor Replaced blower motor 
42900 mi

US $350
Drivers door electric lock did not work required new actuators. 
46300 mi

US $300
A/C motor burned out due to condensate drain being blocked and overflowed into motor. dealer wanted 910.00 to repair. Got recycled assembly on line for 200.00. took longer to clear drain than to replace motor. also changed 2 fan relays. 
24500 mi Frt left window motor was loose in door causing rattle and periodic closing problem. Replaced relays that caused AC to run when ignition was turned off. 
35000 mi

US $60
rear passenger door lock does not work. motor needed replacement 
75000 mi

US $140
AC line froze, needed to be cleaned out due to the cabin air filter needing to be replaced 
143000 mi

US $1200
air intake clogged water built up in engine wall,shorted out AC compressor,solenoid and other electrical functions of AC. 
145000 mi

US $1700
coil leaking along with gaskets and others 
162200 mi

US $1700
condenser and several other parts need to be replaced. coil replaced last year 
182000 mi

US $1250
Driver side headlight replacement 
215000 mi

US $2700
Alternator failed due to power steering pump dripping fluid on top of it. 
232000 mi

US $3000
entire AC system replacement. 
89000 mi

US $1600
AC blowing warm on drivers side, colder on passengers side. Diagnosis, low on freon, leak check did not identify leak. Added freon now working correctly. 
98000 mi

US $125
Diagnosis- Passenger side HID headlight stopped working. Control module failure. Dealer quoted an additional $800 to repair but did not have part in stock. Owner purchased part on line and made repairs 
110000 mi Recall air bag inflator - no charge 
27500 mi Rear tailgate interior light switch was repaired (connections tightened), as this only worked occasionally when the tailgate was opened. Rear hatch light (when tailgate opened) only worked occasionally. Dealer tightened the connections for the bulb. Working fine now. 
49000 mi

US $125
Interior ventilation fan would turn on, even if the system was off, when you shut off the engine. Apparently a well known problem at Mazda as the dealer knew right away that an electrical part needed to be replaced. Ventilation fan would not turn off, even when the engine was off. Electronic control was replaced. Dealer knew right away of this problem, so must be common. 
96000 mi

US $250
Condensation drain was plugged, resulting in water on the passenger floor foot-well. Cleaned the drain and the fan motor replaced, as it sat in a pool of water (due to poor draining of condensate) and would only work sporadically. 
8000 mi bad connection between remote starter and ignition switch 

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2008 Mazda CX-9 4-door

6-cylinder automatic AWD

1000 mi Computer chip "brain" not working; drain battery continously; unable to start/need to jump CX9 in the morning; been in shop for 20 days; still waiting for part on back order;"it's a new car.....we don't have the part ....." Never buy a Mazda.  auto climate control not working properly, vehicle would not heat up; need to manual override to heat the car. "we don't see any problem" ...... wish they drive the car when it's cold with kids... then again....we have not.....since the dealer.. 
1000 mi Smart key does not work again; cannot start nor open/close door with remote. Mazda refused to toll vehicle to dealer near my home.... DON'T GET A MAZDA 

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2008 Mazda CX-9 Electrical 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 2008 Mazda CX-9 problems occur, check out our car reliability stats.