"Don't fill with biodiesel at the supermarket..."
Discussion
cuprabob said:
If it starts a regen and it doesn't finish it, the fans run on for around 5 mins and it will start the regen on the next journey.
It is quite irritating to get out of the car and hear the fan roaring - some people reckon they can tell when a regen is in progress but I can't pick up any of the signs. Stop/start gets disabled but we turn it off anyway.I wish there was a "regen in progress" light, but I guess VW don't want to encourage to drive un-necessarily and probably a lot of owners would panic and call for help if a warning lamp came on.
MorganP104 said:
The car in question here needs a proper Italian tune-up, ideally over a journey of 50 miles or more.
Once its been ragged to within an inch of its life, plug in a fault code reader, reset any error codes, and see what happens.
I've done this a number of times over the years, with some success.
PS: Even if it doesn't work, it's fun.
now thats a proper PH answer.....!! Once its been ragged to within an inch of its life, plug in a fault code reader, reset any error codes, and see what happens.
I've done this a number of times over the years, with some success.
PS: Even if it doesn't work, it's fun.
Sheepshanks said:
cuprabob said:
If it starts a regen and it doesn't finish it, the fans run on for around 5 mins and it will start the regen on the next journey.
It is quite irritating to get out of the car and hear the fan roaring - some people reckon they can tell when a regen is in progress but I can't pick up any of the signs. Stop/start gets disabled but we turn it off anyway.I wish there was a "regen in progress" light, but I guess VW don't want to encourage to drive un-necessarily and probably a lot of owners would panic and call for help if a warning lamp came on.
Easiest way to tell if a regen is taking place is the idle speed is raised to 1,200 rpm when stopped. Not to be confused with the raised idle speed when rolling
Car also feels a bit rougher and you can sense the feeling of heat.
5harp3y said:
its the type of journey, not the fuel.
that sort of commute only really suits a petrol engine
That would be my thoughts on it as well. Short journeys in diesels just doesn't do them any good, most car people have learnt. I'd imagine a huge percentage of diesel owners user supermarket fuels so I'd imagine the info given in the first post is probably nonsense. that sort of commute only really suits a petrol engine
Thing is I don't object to anyone owning a diesel assuming they use it for the right reason. Not so much having to do 15k+ a year but at least using it for motorway mileage. Getting the benefit of it being a diesel and giving the DPF a chance to heat up!
5harp3y said:
its the type of journey, not the fuel.
that sort of commute only really suits a petrol engine
That would be my thoughts on it as well. Short journeys in diesels just doesn't do them any good, most car people have learnt. I'd imagine a huge percentage of diesel owners user supermarket fuels so I'd imagine the info given in the first post is probably nonsense. that sort of commute only really suits a petrol engine
Thing is I don't object to anyone owning a diesel assuming they use it for the right reason. Not so much having to do 15k+ a year but at least using it for motorway mileage. Getting the benefit of it being a diesel and giving the DPF a chance to heat up!
cuprabob said:
I totally agree.
Easiest way to tell if a regen is taking place is the idle speed is raised to 1,200 rpm when stopped. Not to be confused with the raised idle speed when rolling
Car also feels a bit rougher and you can sense the feeling of heat.
I've seen others comment on the signs but ours doesn't do any of those things. You can feel the heat (and hear the fan) once out of the car, but not from inside. It's the lastest EA288 engine - although the active regen process was the same in the previous engine.Easiest way to tell if a regen is taking place is the idle speed is raised to 1,200 rpm when stopped. Not to be confused with the raised idle speed when rolling
Car also feels a bit rougher and you can sense the feeling of heat.
It might not be an industry-wise spec, but PSA turn on the heated elements (screens, mirrors) when they are regenerating. As such, some people connect an LED to the heater mirror wire to get a visual indication of when a regen is taking place (comparing status vs actual request). Of course that might not be always accurate as there might be other triggers to turn these on, but it does give an indication that can be coupled with other items.
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