This comprehensive Maserati Quattroporte 4.2L M139 DOHC VVT Service Repair Workshop Manual, covering models from 2004 to 2012, is your ultimate guide for all repair, servicing, and troubleshooting needs. The manual is designed to provide detailed instructions and comprehensive information for professional mechanics and technicians. It contains hundreds of pages filled with detailed photographs and diagrams, leading you through each step of any repair or maintenance procedure. This manual offers step-by-step guidance, including highly detailed exploded diagrams and pictures, ensuring you perform every job correctly. Whether you are a seasoned professional or a DIY enthusiast, this manual will become an indispensable resource for your Maserati Quattroporte, providing the information you need to confidently tackle any task.

The Maserati Quattroporte, meaning "four doors" in Italian, is a luxury sedan that has been a cornerstone of the Italian marque since its inception in 1963. The model you're inquiring about, the 4.2L M139 DOHC VVT, was produced from 2004 to 2012, marking the fifth generation of the Quattroporte. This particular iteration was a significant departure from its predecessors, embracing a more modern and athletic design language while retaining the inherent elegance and sophistication associated with the Maserati brand. Underneath its sleek exterior lay a powerful 4.2-liter naturally aspirated V8 engine, codenamed M139. This engine, renowned for its smooth and responsive performance, generated a healthy 400 horsepower, propelling the Quattroporte from 0 to 60 mph in a respectable 5.2 seconds. The M139 was also notable for incorporating variable valve timing (VVT), which optimized power delivery across the rev range and enhanced efficiency. This model was available with both rear-wheel drive and all-wheel drive configurations, further accommodating diverse driving preferences.

Beyond mechanical prowess, the 2004-2012 Quattroporte 4.2L M139 DOHC VVT excelled in its craftsmanship and luxury appointments. The interior was a testament to Italian artistry, combining premium leather upholstery, wood trim, and meticulous attention to detail. It featured advanced technology for its time, including a navigation system, a premium sound system, and a large touchscreen display. The Quattroporte also offered a comfortable and spacious cabin, ensuring a refined and enjoyable driving experience. However, beyond its luxurious amenities, this Maserati possessed a sporty character, thanks to its precise handling, responsive steering, and powerful brakes. It was a car that could carve through corners with precision and exhilarate on open roads, while still offering the comfort and opulence expected from a luxury sedan. The 2004-2012 Quattroporte 4.2L M139 DOHC VVT was a compelling offering that skillfully blended performance, luxury, and Italian craftsmanship, solidifying its place as a timeless classic within the Maserati lineage.