The new 120bhp engine is available on all three trims, S, SE and Executive. Prices start from £21,000 on-the-road.
The new engine drives the people carrier from 0-62mph in 12.9 seconds and on to a top speed of 111mph.
Euro IV compliant, the new engine achieves a combined cycle economy of 40.9 mpg and carbon dioxide levels of 182 g/km.
Prices for HDi 120 models
S trim: £21,000
SE trim: £22,790