I found that the 1.6 Karoq tries to do a dpf regeneration at least every 500 miles and if there isn't enough fuel then it fails and will never regen unless you take it to the garage. Clearly massively flawed design. Having a three month old car and a three thousand pound bill for a dpf filters is the outcome for me. I would warn anyone to avoid Skoda Karoq with a diesel engine.

This is the forum where you will find people that have already bought and leased them.

This is not the place for your post though, maybe a mod can move it.

 

Why did it cost you £3,000 for a DPF if it is a flawed design?

?

Is it a 1.6TSI SCR (uses AdBlue)  & was the SCR functioning correctly

& how low was the diesel in the tank?

 

There must be a major issue here that Skoda needs to address or your particular car was faulty and there is a warranty to cover this, 

and what we need is more of an explanation on what the Manufacturer & Importer said and more from yourself.

Edited 28 July, 20196 yr by Roottootemoot

The system won’t regen if there is less than 1/4 tank, that’s makes perfect sense. Easily resolved by putting fuel in the car. 

Only it doesn't even if you fill with a full tank of fuel.

So the comment about fuel level in your original post is redundant. 

 

Its rather confusing as the only way you would be asked to pay for a filter is if it is driver error. If the car is regenerating every 500 miles then there would be something wrong. 

 

One can assume customer services were involved. I’ve not heard of any similar issues on the Karoq as yet so either your car had a specific issue or you are doing very short trips and not completing a regen cycle correctly. 

Post that is in another thread.

Every 500 miles ! Mine does some sort of regen every time it’s up to temp , getting about 4500 miles out of a tank of ad blue 

ok mines a 2 ltr and I’ve done 30,000 in 18 months no hint of a problem 

Are you doing lots of short journeys? I am getting a Karoq from work where I do lots of miles. With my old Audi A1 I was told that it would only request a regen if it hadn't been getting up to temperature (I had, at the time, a 30-40 minute drive to work). It was a question I was asked when I brought the Audi as they said short journeys will not be suitable. Otherwise all it needed was the exhaust system to get hot enough through normal use. (I am assuming some similarity between the engines given they are all VW owned)

 

Just a thought as none of the desiel cars I have owned with a DPF have ever asked for a regen.

7 minutes ago, smartroad said:

Otherwise all it needed was the exhaust system to get hot enough through normal use.

 

All it needs is long enough to be able to complete a regen. It generates its own heat by post combustion injection. 

1 minute ago, Tech1e said:

 

All it needs is long enough to be able to complete a regen. It generates its own heat by post combustion injection. 

Cool! I was never told the exact method, just that it needed to get to full running temp on a regular basis for a reasonable amount of time (I think they said about 15+ minutes)

Two types of regen  a passive usually performed on a sustained drive at a constant speed and the natural heat build up will burn the soot out ,or a forced re gen where by fuel is used to to increase exhaust gas temperature this is sometimes accompanied by a strong smell and more noticeable signs like higher idle rpm cooling fans running  and some lose of drivability or power loss and the ecu may turn on consumers in the background things like heated screens mirrors load up the alternator and on some autos hold the gears for longer .

 I’m talking generally but my Karoq shows some of these signs ,I have an 8 mile drive both ways to work and most times it’s doing a passive regen 

Just waiting for more of the story from the OP on how this all came to pass.

29 minutes ago, Roottootemoot said:

Just waiting for more of the story from the OP on how this all came to pass.

I’m suspecting it was a back handed pop at Skoda UK ,trying to use a pro Skoda forum to gain support for there case ! 

On 30/07/2019 at 10:42, patrolman said:

Two types of regen  a passive usually performed on a sustained drive at a constant speed and the natural heat build up will burn the soot out ,or a forced re gen where by fuel is used to to increase exhaust gas temperature this is sometimes accompanied by a strong smell and more noticeable signs like higher idle rpm cooling fans running  and some lose of drivability or power loss and the ecu may turn on consumers in the background things like heated screens mirrors load up the alternator and on some autos hold the gears for longer .

 I’m talking generally but my Karoq shows some of these signs ,I have an 8 mile drive both ways to work and most times it’s doing a passive regen 

I'm still unclear as to why it doesn't do a regen when it failed to complete because of low fuel and then when it has a full tank doesn't do the regen that is required. Given a 32 mile each way trip to work I also don't know why it requires a forced regen so often, this journey should be enough to do a passive regen. I also wonder how it saves emissions if it has to inject more fuel to do the forced regen, doesn't this just create more emissions but only during the regen.

56 minutes ago, Guest skoda_dpf_issue said:

I'm still unclear as to why it doesn't do a regen when it failed to complete because of low fuel and then when it has a full tank doesn't do the regen that is required. Given a 32 mile each way trip to work I also don't know why it requires a forced regen so often, this journey should be enough to do a passive regen. I also wonder how it saves emissions if it has to inject more fuel to do the forced regen, doesn't this just create more emissions but only during the regen.

The DPF only looks after the soot the scr system reduces  NOX gases