Re: Engine Light & Running Fan –
24-04-2018,10:35 AM
If I get home and the regen is happeningI'll take it back out (if I have time) and drive around in "sport" mode. Usually seems to take about 20 - 25 minutes and that is driving at speeds above 40 MPH.
I did read somewhere that regens only occur above 40 MPH - I don't think that is because of manifold temp, I suspect it's because they inject diesel into the exhaust to burn off the soot and you don't want to be doing that at low speeds in town etc.
With the BiTdi you can tell when it is doing the regen even when driving.
- In "D" mode you notice it holding lower gears even at 40 MPH. The exhaust note sounds a bit more sporty.
- At 60 MPH in "D" the BiTdi will still be in 7th gear under moderate throttle - normally it would shift to 8th at that point.
- If you have the lap timer enabled in VCDS then oil temp gives a clue. It will be significantly higher - so under normal driving where it might be in the 83C - 88C range you'll see it up at 93 - 94C
So I drive around in "S" to keep everything nice and hot and then after a while on a flat piece of road drive at 60MPH and put it in "D". If it drops into 8th then it is done.
A6 allroad BiTdi (MY14, July 2013 - DAB & power tailgate). Glacier white, tech pack (HDD Nav, colour DIS, Parking Plus), sports seats, 4 zone climate, heated seats front and rear, ambient lighting, 75L fuel tank, adaptive Bi Xenon headlights