As above.... an exhaust light has come on. What to do?

Dpf light?

Read the manual and go for a drive.

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Long drive at Motorway speeds in 5th until it goes out.

Yeah light went out thanks guys. I don't a quick search and found that, why does that happen ? The car was stood on a for court for a few weeks I believe

I've had mine since November and it's without doubt "fussy" in terms of the way it likes to be driven (my first car with DPF). It will regen by itself every few hundred miles as I notice the revs are higher - all normal stuff as per the manual and having a car with a particulate filter. I got a shock the first time I switched it off and jumped out as I could smell burning and the exhaust was making tinging noises because of the heat!

If it's not successful in doing its own regen (ie the car gets turned off) it will put the warning light on after a few attempts which is when you need to do the long motorway run etc.

I find that by driving in lower gears - 3rd at 30, 4th at 40 etc it does fine and is still economical - seems to last longer before doing its own regens. I've never had the light on in mine yet.

Tell- tale sign is high tick-over 1000rpm, if so as Vegasphil says " take her for a blast "  :clap: I normally get around 6-700 miles before it asks for a Re-gen 

I got the DPF light on my 1.6 TDI today I've only had the car 12 days but at the minute i am doing very short mileage in it and sometimes so short the engine isn't getting up to temperature on the journey (2.5 miles). I changed the air filter yesterday but i don't think this has caused the light as I've noticed the last few days it has seemed to have been vibrating a lot when stationary in neutral when I opened the bonnet it sounded like a fan was spinning at a high speed - i guess this was it trying to regen itself?

When I bought the car it was a 50 mile drive back and only 4 days ago I did a 40 mile round trip (on the motorway) so I do do some longer mileage drives - how long does it take for the DPF to get clogged?

 

I had literally just parked up tonight at home when the light came on so I'll give it a blast tomorrow and see what happens.

If you plan to use your car for short distances then better think about removing DPF. It can be done in case it gets too annoying.

If you plan to use your car for short distances then better think about removing DPF. It can be done in case it gets too annoying.

Just so he's aware, this is illegal and will fail the MOT if discovered.

Just so he's aware, this is illegal and will fail the MOT if discovered.

Just highlight the word "if". One should do it properly and then MOT shouldn't discover it.

For Octavia it's in a place when no great visual inspection can be done. I just spoke to a guy who deals with DPFs (I'm planning to get rid of mine) - he said it's done this way:

1) DPF is removed. Some device is put inside to keep the same sound level as before. Then is welded together in a way that no inspector can see that it has been opened;

2) then comes programming. Your car thinks that it has never had a DPF and therefore no chekings or regenerations are done. Diagnostic inspections see that DPF is working fine (even there isn't one).

 

Probably it depends on the quality of service. This guy is rather smart and his services cost a bit more but at least I know that everything will be just fine

 

About being illegal - if it bothers you then don't do that but on the other hand - plenty of people do that. It's not a faulty brake system or leaking petrol. It's just a removal of completely unnecessary thing...

Edited 24 March, 201610 yr by Jevpls

Just highlight the word "if". One should do it properly and then MOT shouldn't discover it.

For Octavia it's in a place when no great visual inspection can be done. I just spoke to a guy what deals with DPFs (I'm planning to get rid of mine) - he said it's done this way:

1) DPF is removed. Some device is put inside to keep the same sound level as before. Then is welded together in a way that no inspector can see that it has been opened;

2) then comes programming. Your car thinks that it has never had a DPF and therefore no chekings or regenerations are done. Diagnostic inspections see that DPF is working fine (even there isn't one).

 

Probably it depends on the quality of service. This guy is rather smart and his services cost a bit more but at least I know that everything will be just fine

 

About being illegal - if it bothers you then don't do that but on the other hand - plenty of people do that. It's not a faulty brake system or leaking petrol. It's just a removal of completely unnecessary thing...

 

Oh I agree, mate. Wasn't trying to shame you I'd do the same if I had a diesel, I just thought it prudent for him to be aware that it's not strictly by the book.

I've given it a 20 minute blast this morning on the motorway and the light has cleared. It seems to have come on very quickly though I'll see how I get on and if it's coming on every 2 weeks then that would be a bit annoying - will it be doing any long term damage to the car if it does keep coming on?

 

Jevpls, what did you guy quote you for removal just so i have a ballpark figure.

 

Jevpls, what did you guy quote you for removal just so i have a ballpark figure.

 

You better ask some people from your country. I have different prices here

I've given it a 20 minute blast this morning on the motorway and the light has cleared. It seems to have come on very quickly though I'll see how I get on and if it's coming on every 2 weeks then that would be a bit annoying - will it be doing any long term damage to the car if it does keep coming on?

 

Jevpls, what did you guy quote you for removal just so i have a ballpark figure.

 

Its not ideal to keep getting into a position where the DPF light is on. This means the car has been trying to do a regen multiple times and it will waste a lot of fuel over time and can also lead to oil contamination

 

A tired thermostat can sometimes make things worse so its worth doing a VCDS log of the coolant temp to make sure the engine is running at the correct temperature.

Edited 28 March, 201610 yr by SuperbTWM