2012 Mazda 6
2012 Mazda 6
Overview
The 2012 Mazda 6, often praised for its engaging driving dynamics and stylish design, generally presents a solid reliability record. While no vehicle is entirely without potential issues, the Mazda 6 from this model year tends to avoid widespread, costly problems. Owners can expect a dependable experience, with most reported concerns being relatively minor or specific to certain powertrain configurations. Regular maintenance is key to ensuring its longevity, but significant mechanical or electrical failures are not a common theme for this generation of Mazda’s mid-size sedan. This analysis focuses on documented technical reliability, excluding routine maintenance and normal wear and tear.
Engine
2.5L I4 (LF-VDS)
Oil Consumption
- Symptoms: Excessive oil burning between oil changes, potentially leading to low oil levels.
- Solution: Monitor oil levels regularly and top up as needed. In severe cases, piston ring replacement may be considered, though this is uncommon.
- Cost: $100 - $150 (for monitoring/topping up), $1000 - $2500 (for piston ring replacement if necessary)
PCV Valve Failure
- Symptoms: Rough idle, potential stalling, check engine light.
- Solution: Replacement of the Positive Crankcase Ventilation (PCV) valve.
- Cost: $150 - $300
2.2L MZR-CD Diesel
Diesel Particulate Filter (DPF) Issues
- Symptoms: Reduced engine power, increased fuel consumption, illuminated DPF warning light.
- Solution: Forced regeneration or DPF cleaning. Replacement if heavily clogged or damaged.
- Cost: $200 - $500 (cleaning), $1000 - $2500 (replacement)
Turbocharger Issues
- Symptoms: Loss of power, whistling noises from the engine bay, black smoke from exhaust.
- Solution: Inspection and potential repair or replacement of the turbocharger.
- Cost: $800 - $2000
Transmission
6-Speed Automatic (FS5A-EL)
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
6-Speed Manual (G6M)
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Suspension
Standard Chassis
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Electrical
General Electrical System
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Exterior
Body Panels and Trim
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Interior
Cabin Components
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Summary Verdict
The 2012 Mazda 6 is generally considered a reliable vehicle, particularly with its gasoline engines and transmissions. The most commonly cited issues, such as oil consumption on the 2.5L engine and potential DPF problems with the diesel variant, are manageable with regular checks and maintenance. The manual and automatic transmissions have proven to be robust. Electrical, suspension, exterior, and interior components typically do not present significant widespread problems. Overall, the 2012 Mazda 6 offers a good balance of driving enjoyment and dependable performance, making it a reasonable choice for used car buyers seeking a well-built sedan.