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Mazda Mazda6 Engine Problems and Repair Histories

946 TrueDelta members own a 2000 or newer Mazda Mazda6. 227 of these members (24%) have reported engine repairs for their car. A total of 302 engine repairs to Mazda Mazda6s--an average of 0.3 per vehicle--have been reported.

See our lemon odds and nada odds page for more details. To see how frequently Mazda Mazda6 problems occur, check out our car reliability stats.

Want to read about specific problems behind these stats? Jump to the Mazda Mazda6 problem descriptions below.

Don't infer Mazda Mazda6 problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.

Percentage of Mazda Mazda6 repairs by problem area

37% of the Mazda Mazda6 repairs were to the engine, 9% to the transmission, 10% to the brakes, 11% to the suspension, 17% to the electrical or air-conditioning systems, 10% to the body and trim, and 6% to other areas of the vehicle.

Chart based on 808 repairs.

Mazda Mazda6 engine repair cost distribution

Of the Mazda Mazda6 engine repairs that were not covered by warranty and were not do-it-yourself repairs, 16% cost less than $100, 46% between $100 and $499, 24% between $500 and $999, 10% between $1000 and $2499, and 3% more than $2500.

Chart based on 201 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten Mazda Mazda6 Engine problems and repair histories. Log in or join us to see them all.
Repair costs are in local units.

2006 Mazda MazdaSpeed6 4dr Sedan

turbocharged 274hp 2.3L I4 6-speed manual AWD

Mazda MazdaSpeed6 in Wisconsin, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Sep 2006 2000    
3000 0 CEL thrown for a bad Tumble Control Valve. New intake manifold was ordered and replaced. 
 
Mazda MazdaSpeed6 in Oklahoma, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jun 2007 8000    
11000 0 very smokey oil, smoke occasionally extreme; replaced turbo 
 
Mazda MazdaSpeed6 in Ohio, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Oct 2007 13000    
19000 0 O2 Sensor malfunction. 
54000 10 Exhaust Gas Recirculator (EGR) valve threw a P0401 code. Removed, cleaned, and reinstalled. 
84000  
Mazda MazdaSpeed6 in Georgia, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
May 2007 4000    
5000 0 Replaced fuel pump. OEM turbo seals leaking around 4K miles, took 2 trips in June to get it fixed. Visit 1 - replaced fuel pump, 2 days later still smoking. Visit 2 - 14 days in shop, new Hitachi turbo and gaskets. Problem solved. 
 
Mazda MazdaSpeed6 in Tennessee, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Aug 2006 2000    
26000 0 TSB for emissions issue. Check engine light came on, which cuts power to the turbo. They said it was running rich, but never stated a reason. I think they just reset it, but the problem never came back, so it was fixed. 
89000  

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2005 Mazda Mazda6 4dr Sedan

215-horsepower 3.0L V6 5-speed manual FWD

Mazda Mazda6 in Alberta, Canada
Date Odometer
(in miles)
Cost Problem/Repair Description
Feb 2006 5580    
25420 0 Check engine light came on. Needed to replace solenoid in engine bank. 
 

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2004 Mazda Mazda6 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic FWD

Mazda Mazda6 in Oklahoma, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Aug 2007 23000    
30000 0 Bad seal on gas cap. Gas cap replaced. Problem solved. 
58700 0 Intermittent hesitation when accelerating. No CEL 
67300 500 Replaced Air Intake hose (containing multiple sensors) Replaced Ignition Coil on cylinder 5. 
69000 100 Replaced failed engine mount 
74000 1348 Had to replace coils. Multiple oil leaks requiring replacement of three gaskets. 
82000 1125 Bad fan control module 

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2004 Mazda Mazda6 4dr Sedan

160-horsepower 2.3L I4 5-speed manual FWD

Mazda Mazda6 in Ontario, Canada
Date Odometer
(in miles)
Cost Problem/Repair Description
Jul 2007 60140    
68820 110 Engine light on - took to mechanic, they hooked up to computer and said fuel line problem (losing pressure) that needs more investigation to fix. 3 days later light went off on it's own. 
 

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2004 Mazda Mazda6 4dr Sedan

160-horsepower 2.3L I4 4-speed shiftable automatic FWD

Mazda Mazda6 in British Columbia, Canada
Date Odometer
(in miles)
Cost Problem/Repair Description
Jul 2007 44640    
47120 0 Erratic idle speed, 700 - 2000 rpm. Fixed by software refresh/updates 
71920 0 Erratic RPMs at idle and low speed driving 
82460 0 slightly noisy tensioner on serpentine belt. Tensioner and belt replaced under mazda extended warrnty 
 

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2004 Mazda Mazda6 4-door

6-cylinder automatic 2WD

Mazda Mazda6 in Virginia, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Nov 2007 17000    
17000 0 Car is getting horrible gas mileage, less than 10MPG, was brought to dealer to evaluate engine for the fourth time. Problem still not fixed. 
 

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