2007 Maserati Quattroporte

The 2007 Maserati Quattroporte is a luxury sedan known for its Italian styling, powerful engine, and luxurious interior. In 2007, the Quattroporte was primarily offered with a 4.2-liter V8 engine producing around 400 horsepower and 339 lb-ft of torque, paired with a six-speed automatic transmission (ZF 6HP26). Some owners love the car’s distinctive exhaust note, elegant design, and comfortable ride. Common complaints include high maintenance costs, electrical gremlins, and the sometimes-unreliable DuoSelect automated manual transmission offered in earlier model years. While the 2007 model mainly featured the automatic transmission, it’s essential to differentiate potential issues arising from the engine and transmission, and other components of the car.

Engine

4.2L V8

• Timing Chain Tensioner Failure
  • Description/Symptoms: Rattling noise, especially upon cold start. Can lead to complete engine failure if not addressed.
  • Solution: Replace the timing chain tensioners, guides, and potentially the timing chain itself.
  • Estimated Cost to Fix: $3,000 - $6,000+
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks around the valve covers, visible oil drips on the engine and ground. Burning smell.
  • Solution: Replace valve cover gaskets.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found
• Oil Cooler Leaks
  • Description/Symptoms: Oil leaks from the oil cooler lines or the cooler itself.
  • Solution: Replace oil cooler lines or the entire oil cooler assembly.
  • Estimated Cost to Fix: $500 - $1,200+
  • Recalls: None Found

Transmission

ZF 6HP26 6-Speed Automatic

• Rough Shifting/Slipping
  • Description/Symptoms: Harsh or delayed shifts, slipping between gears.
  • Solution: Transmission flush and filter change may temporarily alleviate symptoms. Ultimately, valve body repair or replacement, or complete transmission rebuild may be necessary.
  • Estimated Cost to Fix: $500 (flush/filter) to $4,000+ (rebuild/replacement)
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering at low speeds, especially when accelerating.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

Suspension

• Skyhook Suspension Issues (If Equipped)
  • Description/Symptoms: Warning lights on the dashboard, uneven ride height, diminished ride quality. Often caused by failing shock absorbers or sensors.
  • Solution: Replace faulty shock absorbers, sensors, or control module.
  • Estimated Cost to Fix: $1,500 - $4,000+ per shock absorber, depending on part and labor
  • Recalls: None Found
• Control Arm Bushing Wear
  • Description/Symptoms: Clunking noises from the suspension, especially over bumps. Vague steering.
  • Solution: Replace worn control arm bushings or the entire control arm assembly.
  • Estimated Cost to Fix: $500 - $1,500+ per control arm
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Car battery drains quickly, even when the car is not in use. Can be difficult to start.
  • Solution: Diagnose and repair parasitic drain. Could be caused by faulty modules, lights, or aftermarket accessories.
  • Estimated Cost to Fix: $100 - $1,000+ (depends on the source of the drain)
  • Recalls: None Found
• Sensor Failures
  • Description/Symptoms: Malfunction indicator lamp (MIL) illuminated, potentially accompanied by various error messages related to different systems (e.g., ABS, TPMS).
  • Solution: Diagnose and replace faulty sensors (e.g., ABS sensors, tire pressure sensors, crankshaft position sensor).
  • Estimated Cost to Fix: $200 - $800+ per sensor, depending on location and type
  • Recalls: None Found
• ECU/TCU Issues
  • Description/Symptoms: Complete failure of the ECU or TCU, or erratic behavior.
  • Solution: Recoding or replacing the ECU or TCU.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

Exterior

• Headlight Condensation/Failure
  • Description/Symptoms: Moisture buildup inside headlight housings. HID bulb failure.
  • Solution: Reseal headlight housings or replace entire headlight assemblies. Replace faulty HID bulbs and ballasts.
  • Estimated Cost to Fix: $300 - $1,500+ per headlight assembly
  • Recalls: None Found

Interior

• Sticky Interior Trim
  • Description/Symptoms: Some interior plastic and trim components become sticky or tacky to the touch.
  • Solution: Refurbishing or replacing affected trim pieces. Cleaning the surfaces with specific chemicals may offer a temporary solution.
  • Estimated Cost to Fix: $200 - $2,000+ (depending on the extent of the issue and the replacement method)
  • Recalls: None Found
• Navigation System/Infotainment Failure
  • Description/Symptoms: Frozen screen, unresponsive buttons, complete system failure.
  • Solution: Repair or replace the navigation unit.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Summary

The 2007 Maserati Quattroporte is a beautiful and powerful car, but it’s prone to a range of issues that can be costly to repair. Engine problems such as timing chain tensioner failure are particularly concerning due to their potential to cause significant damage. Electrical gremlins and suspension issues are also common complaints. While some issues are relatively minor, others can quickly escalate into major repairs, making it crucial for prospective buyers to have the car thoroughly inspected before purchase and to budget for potentially high maintenance costs.