Sprinter 313cdi - Bad starting, fumes..

[andyp85]

I have a 2010 313cdi sprinter on around 110,000 miles.

Recently I've noticed its not easy to start it in the morning, it takes quite a few cranks. I've also noticed that the exhaust fumes are quite fumey when they never used to be.

I know it doesn't sound very major (its not causing me any issues being like this) but I'm trying to work out what it is before it gets worse.

Thanks