Ignorance is bliss

[Hawthorn37]

Is that the stop/start everyone switches off immediately they start up?

The auto start-stop is deactivated during a regen cycle on the 6.1 Cali. It’s the easiest way to see regen is happening, plus the idle revs are slightly higher.

But in my humble opinion you’re right about turning off stop-start. If we are doing lots of short journeys I turn off the start-stop because the “best” way to get everything coated with diesel wax and soot is to let a warm engine get cold every couple of miles! I had issues with a diesel car and I took notes from my local independent garage and the lead technician mentioned this, along with the other tips around additives, Shell v-power and cleaning additives.

 

[FivetonesCali]

Add me to the list of people that doesn’t turn off the stop/start. It’s nice not to pollute wherever I am while sat in traffic. There’s a tonne of research out there about what that does to children’s brain development, and of course lungs.

To the point of cold engine turning on and of, of course that’s inefficient and would pollute (and coke up) more. However, at least on the T6 150 Bluemotion it won’t do stop/start unless fully up to operating temp. Can’t comment on inferior models

 

[colintfcolintf]

First thing I do is turn the stop start off, but then it’s hardly ever in commuter traffic despite doing 12,000 plus miles a year (not just used for holidays, it’s my daily when somewhere is too far to walk in reasonable time)

 

[Dunetune]

To be honest I do have my stop / start activated mainly because I just thought it helped save fuel and stopped unnecessary pollution but it's only since I started this thread i'm getting the strong impression it's not good for the diesel engine! However, it doesn't always happen when I stop at lights etc why is that? I could be wrong (I normally am) but I think it has a slash through the A sometimes if that makes sense! Cheers


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[Wannabecamperman]

To be honest I do have my stop / start activated mainly because I just thought it helped save fuel and stopped unnecessary pollution but it's only since I started this thread i'm getting the strong impression it's not good for the diesel engine! However, it doesn't always happen when I stop at lights etc why is that? I could be wrong (I normally am) but I think it has a slash through the A sometimes if that makes sense! Cheers


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The van has to be up to temp and the battery voltage and other factors before the start/stop will activate.

 

[Dunetune]

Thanks very much. The advice and help on here is terrific.


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[chockswahay]

I use an iPhone app ………… DPF FILTER FOR VAG…………. Combined with an old Carista it gives me full details of regen history and frequency which makes it a doddle to know when the next one is likely. If you want to know for sure if/when the regen takes place it is really useful.

 

[WelshGas]

The auto start-stop is deactivated during a regen cycle on the 6.1 Cali. It’s the easiest way to see regen is happening, plus the idle revs are slightly higher.

But in my humble opinion you’re right about turning off stop-start. If we are doing lots of short journeys I turn off the start-stop because the “best” way to get everything coated with diesel wax and soot is to let a warm engine get cold every couple of miles! I had issues with a diesel car and I took notes from my local independent garage and the lead technician mentioned this, along with the other tips around additives, Shell v-power and cleaning additives.

To be honest I do have my stop / start activated mainly because I just thought it helped save fuel and stopped unnecessary pollution but it's only since I started this thread i'm getting the strong impression it's not good for the diesel engine! However, it doesn't always happen when I stop at lights etc why is that? I could be wrong (I normally am) but I think it has a slash through the A sometimes if that makes sense! Cheers


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There are many factors that prevent Stop/Start.
Engine temp must be Normal.
Engine Battery 80% charged.
Power requirements from Headlights, Heated Seats or AirCon.
Trailer electrics plugged in.
Engine faults.
The system is a lot cleverer than people give it credit for.