2007 INFINITI M45

Introduction:

The 2007 INFINITI M45 is a luxury sedan powered by a 4.5-liter V8 engine producing 325 horsepower and 336 lb-ft of torque. It is paired with a 5-speed automatic transmission sending power to the rear wheels. Despite its impressive performance, the M45 has faced several issues reported by owners.

Engine

4.5L V8

• VTEC Solenoid Failure: Description/Symptoms: The VTEC solenoid, responsible for controlling the valve timing, can fail, leading to reduced engine power, rough idling, and poor fuel economy. Solution: Replacing the VTEC solenoid is necessary. Estimated Cost to Fix: $300 - $500+
• Timing Chain Tensioner Failure: Description/Symptoms: The timing chain tensioner may fail, resulting in a rattling noise from the engine, rough idling, and potential engine damage. Solution: Replacing the timing chain tensioner and timing chain is required. Estimated Cost to Fix: $1,000 - $2,000+
• Oil Leak from Valve Covers: Description/Symptoms: Oil may leak from the valve covers due to worn gaskets. Symptoms include visible oil leakage and a burning smell. Solution: Replacing the valve cover gaskets can resolve the issue. Estimated Cost to Fix: $200 - $400+

Transmission

5-Speed Automatic

• Transmission Slipping: Description/Symptoms: The transmission may slip, especially during acceleration or gear changes. This can lead to loss of power and erratic shifting. Solution: Repairing or replacing the transmission is typically required. Estimated Cost to Fix: $2,000 - $4,000+

Suspension

• Strut/Shock Absorber Wear: Description/Symptoms: Symptoms include noise and vibrations while driving, reduced handling, and uneven tire wear. Solution: Replacing the worn struts or shock absorbers is necessary. Estimated Cost to Fix: $500 - $1,000+ per axle

Electrical

• Battery Drain: Description/Symptoms: The battery may drain rapidly, especially when the vehicle is not in use. Solution: Diagnosing and repairing the electrical system, such as fixing faulty wiring or replacing a defective alternator, is required. Estimated Cost to Fix: Varies depending on the issue
• Xenon Headlight Ballasts Failure: Description/Symptoms: The xenon headlight ballasts may fail, causing the headlights to malfunction. Symptoms include flickering or dimming headlights. Solution: Replacing the affected ballast is necessary. Estimated Cost to Fix: $500 - $1,000+ per headlight

Exterior

• Sunroof Drain Plugs Clogging: Description/Symptoms: The sunroof drain plugs may become clogged, leading to water leaking into the cabin and causing damage to the interior. Solution: Cleaning or replacing the drain plugs is necessary. Estimated Cost to Fix: $100 - $200+

Interior

• Instrument Panel Lights Malfunctioning: Description/Symptoms: The instrument panel lights may malfunction, making it difficult to read the gauges. Solution: Replacing the affected instrument panel lights is necessary. Estimated Cost to Fix: $50 - $200+
• Door Lock Actuator Failure: Description/Symptoms: The door lock actuator may fail, causing the door to become stuck or difficult to lock/unlock. Solution: Replacing the faulty actuator is necessary. Estimated Cost to Fix: $200 - $400+ per door

Summary:

The 2007 INFINITI M45 has faced several issues affecting its engine, transmission, suspension, and electrical systems. The severity and cost of the issues vary, ranging from minor electrical problems to more significant and expensive transmission and engine repairs. While the car offers impressive performance and luxury, potential buyers should be aware of these issues before purchasing to determine if they are willing to accept the associated potential costs and repairs.