2008-2010 Citroen C4 I Grand Picasso (Phase I ) 1.6 THP (150 Hp) EGS

The Citroen C4 I Grand Picasso 1.6 THP (150 hp) EGS, produced between 2008 and 2010, represents a significant iteration within the first generation (2006-2013) of Citroen’s popular MPV. Positioned as a mid-range offering within the Grand Picasso lineup, this variant aimed to balance performance and fuel efficiency with the practicality expected of a seven-seat family vehicle. It was primarily marketed in Europe, where MPVs held a strong market share, offering a spacious and versatile alternative to traditional station wagons and SUVs. The “EGS” designation refers to the electronically controlled sequential manual gearbox, a unique transmission offering that differentiated it from both traditional automatic and manual transmissions.

Technical Specifications

INTRODUCTION

The Citroen C4 Grand Picasso, launched in 2006, was a key model in Citroen’s strategy to offer innovative and practical family transport. The Phase I models, produced until 2010, established the design language and core features of the range. The 1.6 THP 150 EGS variant, introduced in 2008, provided a compelling alternative to the diesel options prevalent in the European market. It slotted into the middle of the range, offering more performance than the base 1.6 VTi models but remaining more affordable and fuel-efficient than the higher-powered 2.0 HDi diesels. The Grand Picasso’s defining characteristic was its spacious interior, modular seating arrangement, and panoramic glass roof, all designed to enhance the passenger experience.

Powertrain & Engine Architecture

At the heart of the C4 Grand Picasso 1.6 THP 150 EGS lies the PSA-developed 5FX (EP6DT) engine. This 1.6-liter inline-four cylinder engine utilizes direct fuel injection and a twin-scroll turbocharger with an intercooler to deliver 150 horsepower at 5800 rpm and 240 Nm (177 lb-ft) of torque between 1400 and 4000 rpm. The direct injection system, coupled with the turbocharging, allowed for a good balance of power and fuel efficiency. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The “THP” designation stands for “Turbo High Pressure,” highlighting the engine’s key technologies.

The EGS (Electronically Controlled Sequential Manual) gearbox is a unique feature of this variant. It’s essentially a conventional manual gearbox, but gear changes are automated via electronic actuators controlled by the vehicle’s computer. Unlike a traditional torque converter automatic, the EGS offers quicker shifts and improved fuel economy, but can sometimes exhibit less smoothness than a conventional automatic. It features six forward gears, optimized for both acceleration and cruising efficiency.

Driving Characteristics

The 1.6 THP 150 EGS Grand Picasso offered a noticeable step up in performance compared to the naturally aspirated 1.6 VTi models. While not a sports car, the turbocharger provided ample torque for comfortable highway cruising and overtaking maneuvers. The EGS gearbox, while efficient, could sometimes feel hesitant or jerky during low-speed maneuvers or when transitioning between gears. Compared to the 2.0 HDi diesel variants, the 1.6 THP offered a more responsive engine character, but lacked the diesel’s superior fuel economy and low-end torque. The gear ratios were tuned to prioritize fuel efficiency, meaning the engine could feel slightly strained when accelerating hard with a full load of passengers and luggage.

Equipment & Trim Levels

The 1.6 THP 150 EGS Grand Picasso typically came equipped with a generous level of standard features. These included air conditioning, electric front and rear windows, remote central locking, a CD stereo with steering wheel-mounted controls, and ABS brakes. Higher trim levels added features such as alloy wheels, a panoramic glass roof, rear parking sensors, and upgraded interior trim. Interior upholstery was typically cloth, with options for leather upgrades. The dashboard layout was modern for its time, featuring a centrally mounted instrument cluster and a user-friendly infotainment system.

Chassis & Braking

The C4 Grand Picasso utilized a McPherson strut front suspension and a semi-independent coil spring rear suspension. This setup provided a comfortable ride quality, well-suited for long journeys. The front brakes were ventilated discs, while the rear brakes were solid discs. ABS (Anti-lock Braking System) was standard, enhancing safety during emergency braking situations. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.

Market Reception & Comparison

The C4 Grand Picasso 1.6 THP 150 EGS was generally well-received by automotive critics. It was praised for its spacious interior, comfortable ride, and relatively fuel-efficient engine. However, the EGS gearbox received mixed reviews, with some testers finding it clunky and unresponsive. Compared to the diesel variants, the 1.6 THP offered a more refined driving experience but suffered from slightly higher fuel consumption. Its price point positioned it as a competitive alternative to other MPVs in the segment, such as the Renault Scenic and the Volkswagen Touran.

Legacy

The 1.6 THP engine proved to be a reliable unit when properly maintained, although early versions were known to exhibit issues with carbon buildup on the intake valves. The EGS gearbox, while innovative, has a reputation for requiring more frequent servicing than traditional automatic transmissions. Today, the C4 Grand Picasso 1.6 THP 150 EGS can be found on the used car market at relatively affordable prices. It remains a practical and spacious family vehicle, offering a good balance of comfort, performance, and fuel efficiency. However, potential buyers should be aware of the potential maintenance requirements of both the engine and the EGS gearbox.