The Viano is a large, heavy MPV, and although the two 2.1-litre diesel engines (a 134bhp version badged 2.0 CDI and a 161bhp version badged 2.2 CDI) provide decent flexibility, they’re far from fast. Both get a six-speed manual gearbox when combined with Trend trim, but Ambiente versions get a five-speed auto. The auto-only 221bhp 3.0 V6 diesel provides more pace.
Mercedes-Benz Viano MPV ride & handling
The Viano is surprisingly easy to manoeuvre, thanks to its relatively tight turning circle, but it feels every bit of its size when you’re tackling bends at higher speeds. The suspension never settles, either – it picks up on most surface imperfections, which makes the ride uncomfortable for too much of the time. Not ideal in an MPV.
Mercedes-Benz Viano MPV refinement
The engines need to be pushed quite hard to offer any meaningful performance, and this hurts refinement at low speeds. The engines calm down as speeds rise, but the clatter is replaced by wind and road noise, meaning the Viano still isn’t as relaxing on the motorway as it should be.