Skoda Octavia 2016 1.6 CRTDI. 

 

Most times my engine would idle that wee bit higher idles at 10.000RPM and  some time the radiator FANS would come on when is idleing at 10.000RPM when the car is off the FANS stay on for about 5mins 

 

I have also noticed with a full tank of fuel am only getting 290miles 

I assume you mean 1000 rpm

 

Sounds like clogged filters, and the car is using extra fuel to try and raise the heat in the emissions system.

 

Almost certainly that DPF is part clogged, and some of it is so old and baked on, never going to clean fully.  
 

I suspect your only solution is a full DFP clean (ceramex) etc.  A forced regeneration will only do part of a cleaning job, probably be back to square one within 1000 miles.    By the time you have paid for that a full service and other filters should stop it reoccurring.

 

Of course, without seeing the car, could be something else too like faulty sensor.  I suspect injectors are ok front amount of fuel you are pushing through them.

 

 

Sorry John yea 1000RPM the car had 2 fuel injector and high pressure fuel pump 3weeks ago the car drives %100 apart from this issue 

 

There isn't any fault codes what so ever in the hole car 

 

If I was driven the car about all day probably 4 times this would happen idle at 1000RPM and FANS come on nightmare.....

 

But the rest of the time it would idle at 7000 8000 RPM as it should do 

 

Also stop start would only work 2 or 3 times and when it's deactivated it says on the screen something like ( power to high)

Welcome to the forum.

How many miles has the car covered?

 

Sounds just like it is doing a regen.

?

Are you driving about in town all day or out on the open roads?

Is it a Taxi / Private Hire car driving about?

 

 

39 minutes ago, SurreyJohn said:

I assume you mean 1000 rpm

 

Sounds like clogged filters, and the car is using extra fuel to try and raise the heat in the emissions system.

 

Almost certainly that DPF is part clogged, and some of it is so old and baked on, never going to clean fully.  
 

I suspect your only solution is a full DFP clean (ceramex) etc.  A forced regeneration will only do part of a cleaning job, probably be back to square one within 1000 miles.    By the time you have paid for that a full service and other filters should stop it reoccurring.

 

Of course, without seeing the car, could be something else too like faulty sensor.  I suspect injectors are ok front amount of fuel you are pushing through them.

 

 

 

You make a lot of assumptions without asking what the OP's typical journey profile is.

 

It could be simply that the attempted regenerations are being interrupted and not allowed to complete  he has already spoken of such.

 

As for being certain that the DPF is part clogged, speaking of a forced regen (why?) and that it will never be successful and back to square one in 1000 miles you dont even know how many miles the vehicle has done.

 

What "other filters" do you believe would prevent a DPF, probably a healthy one at that, from (re)clogging?

 

Or have I missed something?

 

Editted, my posting overlapped with Rooted's, looks like he and I are on the same page.

Edited 19 November, 20232 yr by J.R.

2 hours ago, Rooted said:

Welcome to the forum.

How many miles has the car covered?

 

Sounds just like it is doing a regen.

?

Are you driving about in town all day or out on the open roads?

Is it a Taxi / Private Hire car driving about?

 

 

The car has 217k

 

Sort of mixed driving in towns and on motorways 

 

It's my own personal car 

@Sammybox88Have you had it from new or newish and being doing that 30,000 miles or so a year?

Get it on VCDS and look at the DPF differential pressure and the measured (not calculated) value for soot, ignore the oil ash figure that will simply be estimated but at 217k it could weel be that the DPF would benefit from a professional enema.

 

The key indicator will be the differential pressure compared to the measured soot value.

3 hours ago, Rooted said:

@Sammybox88Have you had it from new or newish and being doing that 30,000 miles or so a year?

It's was my cousin car he had it from band new he was a taxi driver and with 217k it's never had clutch