The whole issue sounds like DPF regeneration never kicking in due to low engine temperature. Either simply because of short drives or a bad thermostat.
You my want to enable engine coolant temperature display and take a 30-min drive on highway while taking a note of temperature.
Quote:
Originally Posted by ninja_zx11
Thanks lp!! what would be the consequences of running at 76 to 82 deg. can i get it done through CPO?any ideas how i can convince SA that thermostat needs replacement.
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Quote:
Originally Posted by lpcapital
Well... The logical argument would be that when coolant temp goes below 75 the DPF doesn't regen and the glow plug kick in (see doc from BMW and TIS if the dealer doesn't believe you).
Whether he agrees or not that's a different story: the cost is minimal so on my book is not worth the waste of time and patience... But I guess it depends on the SA
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