All cars have good points and weaknesses. The Berlingo 1.6hdi is no different.
If you're really worried about the health of your turbo, firstly run the engine and listen with your head near the turbo. Does it make worrying noises? If it sounds fine, there are a couple of quick checks you can do for reassurance.
In this photo you see a general view of the turbo, and it's easily located when you open the bonnet.
Here's a close up. I have highlighted the turbo oil feed and air feed.
When the engine is cold, undo the air feed tube - normal screwdriver, and spring it aside with a little pressure - and run your fingers round the inside of the tube. It should feel smooth and your fingers will be oily. If it feels rough, then this indicates a build up of carbon based sludge, and that spells future potential trouble.
Next, remove the banjo bolt highlighted on the oil feed pipe (allen key, and usually very tight). Leave the pipe itself undisturbed, and avoid dislodging the copper washer on the underside of the bolt, if possible. There is a second copper washer on the upper side of the pipe union, easily seen.
The bolt is hollow and should also be oily without any build up of sludge or gunge. If it is dry or clogged, again possible future trouble.
Make sure you don't get any dirt or dust in the tube or oil pipe when you do this.
Hope that helps. They're great motors with long life when properly maintained.
Gravity.