There is an additional warning on both tools stating that carrying out forced regeneration below the advised parameters results in premature ageing of the DPF & advises not to do it.
Presumably this is due to the particularly aggressive nature of a forced regen causing thermal ageing to the washcoat & substrate?
With VAG common rail there are a lot of software issues around DPF regenerations failing/ stalling, Pressure senders & egt sensors giving issues, not to mention the common failure of motorised EGR & manifold flaps & worn cams on PDs.
My opinion for what it is worth, is to leave well alone until a warning light is flagged as you could make a very expensive rod for your own back if a forced regen fails due to issues elsewhere in the system which have not yet come to light.
A car which comes in with a moderately high loading & advice given to the customer to give it a run is a prettier alternative than a car which came in with no light on, but after a service & forced regen is now in limp home & requiring diagnostic time to determine where it all went wrong?
The Common Rail is prone to quite high levels of oil dilution during a forced regen, so possibly a good idea to consider the oil before & after a forced regen as high levels of oil dilution cause further issues.
Just one opinion feel free to disagree & say where I may be wrong.
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