What are the most common Infiniti M56 problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2011-2013 Infiniti M56 has 5 documented issues. The most frequently reported are: Radiator / Cooling Fan Module Failure, Timing Chain Guide Wear / Chain Noise, Front Lower Control Arm / Tension Rod Bushing Wear. Of these, 2 are rated critical and should be addressed promptly.
Is the Infiniti M56 reliable?
The 2011-2013 Infiniti M56 has 5 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: Radiator / Cooling Fan Module Failure and Timing Chain Guide Wear / Chain Noise. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Infiniti M56 problems?
Repair costs for known Infiniti M56 issues range from $80 to $5,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Radiator / Cooling Fan Module Failure, typically costs $700-$1,800 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2011-2013 Infiniti M56 Radiator / Cooling Fan Module Failure?
M56 owners report overheating or rising coolant temperature caused by radiator leakage and/or electric cooling fan control failure. The issue is typically related to age-related plastic tank cracking, fan motor wear, or failure of the integrated fan control assembly, especially i… Repairs typically run $700-$1,800. Severity: high.
What is the 2011-2013 Infiniti M56 Timing Chain Guide Wear / Chain Noise?
Owners of VK56VD-equipped M56 models report startup rattle and persistent front-engine timing noise related to timing chain guide and tensioner wear. As mileage increases, slack in the primary chain system can affect valve timing and trigger correlation faults, especially when oi… Repairs typically run $2,500-$5,000. Severity: high.
What is the 2011-2013 Infiniti M56 Front Lower Control Arm / Tension Rod Bushing Wear?
A common wear issue on the Y51 chassis is deterioration of the front lower control arm and tension rod bushings, which leads to looseness under braking and over bumps. The heavy V8 front-end load accelerates bushing cracking and fluid-filled bushing failure, causing alignment ins… Repairs typically run $500-$1,400. Severity: medium.
What is the 2011-2013 Infiniti M56 Steering Rack / Power Steering Leak and Noise?
Some M56 owners report power steering fluid leaks, groaning, or inconsistent steering assist caused by rack seal leakage or hose seepage. As fluid level drops, the pump can become noisy and steering effort increases, particularly during parking maneuvers. Repairs typically run $300-$1,800. Severity: medium.
What is the 2011-2013 Infiniti M56 TPMS Sensor Battery Failure?
As these vehicles age, the original tire pressure monitoring sensors commonly fail when their internal batteries are depleted. This causes the TPMS warning light to flash and then stay on, even when tire pressures are correct, and is a frequent owner-reported nuisance on 2011-201… Repairs typically run $80-$300. Severity: low.
