2013 INFINITI M37

The 2013 INFINITI M37 is a mid-size luxury sedan known for its blend of performance, comfort, and stylish design. It was offered with two engine options: a 3.7-liter V6 and a 5.6-liter V8, each with a 7-speed automatic transmission. The 3.7-liter V6 produces around 330 horsepower and 270 lb-ft of torque, offering a balance of power and efficiency. People generally liked the M37 for its powerful engine, comfortable ride, luxurious interior, and ample features. Some disliked its less-than-stellar fuel economy, somewhat dated infotainment system, and less engaging driving dynamics compared to some of its rivals.

Engine

3.7L V6 (VQ37VHR)

• Timing Chain Issues
  • Description/Symptoms: Rattling noise upon startup, especially when cold. Diagnostic Trouble Codes (DTCs) related to camshaft timing (e.g., P0011, P0021) may be present. The noise may eventually become constant and lead to engine performance issues.
  • Solution: Replacement of the timing chain, tensioners, guides, and potentially camshaft sprockets.
  • Estimated Cost to Fix: $1500 - $3000+
  • Recalls: None Found

5.6L V8 (VK56VD)

No Issues Found

Transmission

7-Speed Automatic (RE7R01A)

• Valve Body Issues
  • Description/Symptoms: Harsh or delayed shifting, slipping between gears, erratic shifting behavior, or complete transmission failure. Diagnostic Trouble Codes (DTCs) related to valve body malfunctions (e.g., P0744, P0776, P0731, P0732, P0733, P0734, P0735, P0736) may be present.
  • Solution: Replacement or rebuild of the valve body. In severe cases, complete transmission replacement may be necessary.
  • Estimated Cost to Fix: $800 - $3500+
  • Recalls: None Found

Suspension

• Front Lower Control Arm Bushings Failure
  • Description/Symptoms: Clunking noise from the front suspension, especially when going over bumps or during braking/acceleration. Vague steering or wandering on the road. Premature tire wear.
  • Solution: Replacement of the front lower control arm bushings, or complete control arm replacement if bushings are not available separately.
  • Estimated Cost to Fix: $300 - $800+ per side
  • Recalls: None Found

Electrical

• Navigation/Infotainment System Freezing/Crashing
  • Description/Symptoms: The navigation screen freezes, becomes unresponsive, or crashes frequently. Loss of audio or navigation functionality. The system may require frequent reboots.
  • Solution: Software update (if available), replacement of the navigation unit.
  • Estimated Cost to Fix: $100 - $1200+
  • Recalls: None Found
• Battery Drain Issues
  • Description/Symptoms: Vehicle battery drains overnight or within a few days, even when the car is not in use. Difficulty starting the car. Common causes include faulty relays, parasitic draw from aftermarket accessories, or a failing alternator.
  • Solution: Diagnose and repair the source of the parasitic draw. Replace faulty relays or aftermarket accessories. Replace the battery or alternator if they are failing.
  • Estimated Cost to Fix: $100 - $500+ depending on the cause.
  • Recalls: None Found

Exterior

• Automatic Headlight Sensor Malfunction
  • Description/Symptoms: Automatic headlights do not turn on when it is dark or turn off when it is light. Dash notification with headlight failure.
  • Solution: Replace the sensor.
  • Estimated Cost to Fix: $150-300
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof jams, fails to open or close properly, or makes excessive noise during operation. The motor may fail or the tracks may become misaligned.
  • Solution: Sunroof track adjustment, motor replacement, or complete sunroof assembly replacement.
  • Estimated Cost to Fix: $200 - $1000+
  • Recalls: None Found

Summary

The 2013 INFINITI M37 is a generally reliable car, but owners have reported issues with the timing chain on the 3.7L V6, valve body in the 7-speed automatic transmission, and suspension components, which may lead to moderate to high repair costs. Electrical issues with the navigation/infotainment system and battery drain can also occur. The severity of these issues can range from minor annoyances to significant mechanical failures. Potential buyers should be aware of these common problems and consider having a pre-purchase inspection performed by a qualified mechanic.