How many miles are you seeing between regenerations?

VeeDubTDI said:

I think you're being wise by letting regenerations finish. I'll let the car idle in the driveway rather than driving it around. They're usually finished in 5 - 10 minutes and EGT is back down to normal within a few minutes of the regen completing.

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I tried that until the time I left my car idling overnight and found it still running out in the driveway the next morning, 16-hours later! That cured me of trying that again. I got preoccupied with all kinds of things at home that evening and forgot all about the car.

zaphod99 said:

This is in sharp contrast to my observations. After shutting off my Passat mid-regen, and immediately restarting, it NEVER goes back into regen (as observed using the Torque app). I have done this many times to let the car idle for ~2 minutes (or until ET1 is <= 400F) before shutting it down again.

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I guess the 2013 Passat works differently than my 2010 Golf.

Ok, please excuse the newb'ness here, but, how can I tell if mine is going into Regen? Smell? Sound? I drive 100+ hwy miles a day.

THanks

Jeff

jeepnguy said:

Ok, please excuse the newb'ness here, but, how can I tell if mine is going into Regen? Smell? Sound? I drive 100+ hwy miles a day.

THanks

Jeff

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This is a question I'm also wondering about. I understand while idling, the RPMs are a bit higher than usual. How does one tell while driving?

The most common way to monitor regens is by monitoring the Exhaust Gas Temperature (EGT). I use a P3Cars vent gauge to monitor EGT, but there are other ways and more sophisticated ways, e.g., VagCom.

Below is a picture of my vent gauge. It's monitoring coolant temperature in the picture, but it's usually on EGT. It also does boost and some other things, but I think EGT is the most interesting on these cars.


on Flickr

If you really want to be able to tell when a regen is going; your cheapest solution is a ~$15 bluetooth OBD adapter and the Torque Pro App on an android phone (sorry iPhone users; but they have some similar apps). It will let you monitor coolant, EGTs, etc and you can see a regen easily.

Solutions like the P3 above are great, and probably are more accurate if you want to spend the money; but for a total investment of less than $25, Torque Pro can't really be beat

So there is no indication or difference in performance that would let me know? Thanks for the info!!

Only at idle (increased RPMs)

Actually; if your car is a manual there are other indicators. The shift light will tell you to go to lower gears to keep RPMs up when there is a regen going. For example; if you normally drive at 35 in 4th gear; when in a regen the car will tell you to shift to 3rd gear instead.

DubFamily said:

Only at idle (increased RPMs)

Actually; if your car is a manual there are other indicators. The shift light will tell you to go to lower gears to keep RPMs up when there is a regen going. For example; if you normally drive at 35 in 4th gear; when in a regen the car will tell you to shift to 3rd gear instead.

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Guess I've never noticed a shift light change, I'm always hammer down