So the problem is on the way down to Portugal I noticed some problems with power, I was heading up a hill on the motorway and had my foot to the floor when I noticed a lack of power and a lumpy power delivery, engine struggling to maintain 100km/h. I can normally power up this kind of incline no problem, it went away after maybe 2kms and everything was normal for 50kms or so untill it happened again, this time for maybe 10kms. It went away again and we completed the final 100kms with no reoccurance.
So I’m wondering if we filled up with sub standard diesel, we had filled up about half an hour prior to this happening.
The vehicle is a 2014 Land Rover Defender 2.2 tdci Puma with under 30000kms on the engine. Recently serviced, including filters etc. BAS 170bhp remap. Never had this issue before.