From general diesel experience (truck/tractor) if you've got a primer and need to use it to get it running (not including when service is done) you've got an air leak and it's losing prime. Filter is a prime suspect with the recent change, poor seal there will cause trouble.
The only problem is that the excellent 2.2-litre i-DTEC diesel engine was dropped from the range and replaced by a 1.6-litre i-DTEC diesel. The 2.2-litre diesel is a peach, offering punchy performance, superb efficiency and smooth running. The 1.6-litre diesel is fine, but it lacks the refinement of the 2.2. FORD FOCUS DOES NOT CRANK DOES NOT START FIX 2011 2012 2013 2014 2015 2016 2017 2018If you have Ford Focus and your car does not crank and does not start we pwNE.