JohnK89

Thank you all for your replies. My concerns for Euro6 EGR/DPF reliability come from this paragraph -> "HOW WILL THE EMISSIONS FIX AFFECT MY DPF?" https://www.hypermiler.co.uk/dieselgate/dieselgate-how-the-emissions-fix-will-affect-your-dpf-diesel-particulate-filter-in-your-vw-audi-skoda-seat "In a letter from the UK’s DfT (Department for Transport) Duncan Kay (Head of Vehicle Environment Team) it was confirmed in writing that the “fix” offered to VAG owners “causes about twice” the level of carcinogenic diesel particulate matter to be produced during the combustion process. This confirms what many owners have experienced, noting that their engines fans are staying on after the car has been parked with increased frequency. These fans are running due to the vehicle performing a DPF regeneration, attempting to “burn off” the extra soot within the filter. This process would usually happen during normal driving conditions without the knowledge of the driver, however with the increases soot loading it’s proving to be much more noticeable with the regeneration failing to complete before the vehicle has stopped. Whats not often mentioned is the Ash buildup which will ultimately be the death of your DPF. Unlike the soot particulates which are burnt off during a regeneration, Ash will build up within the filter until it blocks completely. A DPF regeneration is not capable of burning off the Ash buildup in the DPF, literally meaning a DPF regeneration will NEVER completely clear the filter of all exhaust matter. With twice the amount of diesel particulate matter being produced after the emissions fix, its expected that this will directly impact the lifespan of the filter by the same amount. It’s widely accepted that a DPF should last about 70,000 to 85,000 files (before the fix). The negative effect of emissions “fix” on the DPF filter should see its lifespan cut in half."

Looking for advice before pulling the triger. I am in the process of buying a used Octavia mkiii TDi (1.6 or 2.0 not yet decided) for commuting 33k km/yr (all of them on highway). The Octavia models that fit my budget will be either euro5 (2014-2015) models or early Euro6 (2016) models with approx. 110k kms on the clock. I would like to keep the car for 5 yrs and reaching close to 300k kms without any major repairs. However, internet if full of reporting issues about problems of EGR/DPF for the 1.6/2.0 TDI engines; especially for Euro6 engines. Some users claim that Euro5 models are more reliable and get better MPG due to less DPF regens. Any thoughts?