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%)

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

2008 Mazda CX-9 engine repair cost distribution

$2500+ (0%)

$1000 - $2499 (3%)

$500 - $999 (24%)

$100 - $499 (27%)

< $100 (45%)

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

Chart based on 33 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 4dr SUV

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

57000 mi

US $800
Two ignition coil damage and one fuel injector 
33000 mi Two problems. Car running on only 5 cylinders. one cyl not working due to bad Ignition coil. So engine struggles on uphill. Rear blower starts when ignition key is turned off. 
37000 mi

US $250
Ignition coil on the 5th cylinder was not working. Got the Ignition coil from a external source($90 vs $140) and paid for the labor and spark plug. 
142000 mi

US $300
oil change 
1000000000 mi

US $600
Fuel injectors were gunked up. 1 cylinder wasn’t firing because the cable running power to the injector was loose at the connection site 

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2008 Mazda CX-9 4dr SUV

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

68050 mi

US $50
Replaced all 6 spark plugs to address a hesitation issue during acceleration or maintaining speed up inclines. New plugs resolved issue. 
80100 mi engine computer tripped posting 5 check engine codes 
82000 mi

US $950
Spark plug replacement and throttle body cleaning 
30300 mi Motor mount replaced. 
43900 mi Rattle caused by loose bracket. Bracket tightened. 
198000 mi

US $400
oil pressure regulator. 
85000 mi

US $850
Heat shield between drive train and cabin rusted out and had to be replaced. 
95000 mi

US $865
Replaced rear main seal. 
101000 mi

US $370
Replaced serpentine belt and Tensioner 
89800 mi

US $1500
4 coils needed to be replaced 
102000 mi

US $150
Front Muffler rusted, repair shop did not have part, inserted straight pipe. Still has both rear mufflers. Little louder than stock. 
110000 mi

US $725
Replaced front muffler assembly 
56000 mi

US $130
Loose heat shield, louder than normal engine noise due to rattling. 
14000 mi

US $46
Rough Idle, died sometimes when idling. Dealer replaced throttle body, problem solved.  
19840 mi Engine speed surging at hot idle 
75820 mi

C $500
Replaced serpentine belt 
89280 mi

C $50
Heat shield loose. Replaced bolts and reattached 
68000 mi

US $180
Replacing the AC belt, which started to crack as previously inspected. 
121500 mi

C $200
Drive belt and alternator belt replaced 
124620 mi Drive belt was about to fail due to improper installation by dealer. 
24000 mi Ticking sound from engine at 1500rpm under acceleration/load. Dealer found TSB related to problem. Dealer re-flashed computer and issue was gone. 
28000 mi Knocking sound when cold. Unsuccessful, suspected in intake. Goes away when warm and is not heard unless below 40 degrees. 
75000 mi Serpentine belt replaced as it showed signs of aging (cracking) 
10000 mi Intermittant coolant odor present at 40 degrees+ in traffic/ in garage. Unable to find leak or repeatedly find issue, it happens in slow traffic and when fresh air is coming in (not on recirculate) Same issue since new, annoying for such a great car. 
36300 mi

US $577
Spark plugs replaced. 
100000 mi

US $93
Worn drive belts. Replaced 2 belts and belt tensioner. 
60400 mi

US $200
oil leak. Dealer found aftermarket drain plug was ill fitting. Replaced it and leak stopped 

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