[Skoda Superb 2012 2.0 tdi Battery Drain]

Thanks everyone , I will get to the bottom of this and report back 

[Skoda Superb 2012 2.0 tdi Battery Drain]

On 19/11/2023 at 20:37, J.R. said:

Remove the trims and all will be revealed including hopefully the cycling relay, a good thwack often sets them straight like a defibrillator.

Hi

Pls clarify what a cycling relay is ( I know what a relay is ) Thanks 

On 19/11/2023 at 20:42, Breezy_Pete said:

If you mean the right side as you look at it, rather than the car's right side, I think the air quality sensor may be under there, and they have a bad rep.

For draining batteries or making noises ? 

Ta 

[Skoda Superb 2012 2.0 tdi Battery Drain]

Annoying battery drain killing car after just a few days unused

New battery so not the battery

 

One thing I am getting when car is turned off is a relay type noise (almost fizing noise) from under the bonnet 

 

As you look under the bonnet at the back right hand side it appears to be from under the plastic trims very close to the screen 

 

No idea what electrics are under there ? 

I have original satnav / stereo , no dash cams etc but any clues to look for would be helpful 

 

Thanks 

[Superb 2 2010 2.0tdi Battery Drain]

I have exactly the same problem , 12 plate Superb 2.0 tdi , battery new and won't last more than 3 days , currently having to disconnect battery if not using the car for a few days 

 

 

[Fuel sender resistance readings, guage faulty]

Just a follow up to this issue 

When tank was fairly low on fuel i accessed the fuel pump and float sender in the tank

I exercised the gloat sender back and forwards with my hand 

Put it all back together and so far guage is now reading correct

 

Filled the car up and so far the needle now shows full correctly

 

So looks like the issue is a dodgy in tank sender 

Will see how I get on now

[Fuel sender resistance readings, guage faulty]

Yep

Currently I fill up and use the trip as a guide to how much range / fuel I have left 

[Fuel sender resistance readings, guage faulty]

Thanks for comments

 

I personally am beginning to think that my fuel guage issue is now either a varying resistance issue either through corroded contact or the float resistor mechanism failing / sticking 

 

Yesterday the fuel guage was on red , today it reads different and more correct at below half tank 

 

I think inspecting the tank will now be necessary as its clearly not just adjustment 

 

Can't wait, not

[Fuel sender resistance readings, guage faulty]

https://youtu.be/evBqjMyqpsY

[Fuel sender resistance readings, guage faulty]

Thanks for resistance readings , I will measure

 

A few youtube searches show vcds has the option to adapt / calibrate fuel guage readings 

 

Ta 

[Fuel sender resistance readings, guage faulty]

Pls could you tell me what VCDS cable / system you use ? What sort of price ? 

 

Ta 

[Fuel sender resistance readings, guage faulty]

Thanks for comments

My guage is well out

With a 60 litre tank I can brim it till I see fuel ,it never goes above 3/4 then after about 250 miles , I hit fuel light

I know from refilling about 25 / 30 litres Istill have lots of fuel left

Car should easily do 400 miles around town 

 

So possibly I could adjust on VCDS ?

 

That's interesting 

[Fuel sender resistance readings, guage faulty]

Skoda Superb 2012 2.0 tdi

Anyone got any info on what the fuel sender resistance readings at reserve & full should be ?

 

My fuel guage only reads 3/4 full when brimmed and it then shows empty / fuel light on when clearly there is lots of fuel left

 

Thought I would start by checking Ohms readings before pulling it all apart

 

Also just out of interest can vagcom or whatever software adjust the fuel guage to suit my resistance readings ? 

 

Thanks 

[EGR code P0403 Superb 2.0 TDI 90k]

I spoke with Skoda parts quoting car info for a price on new EGR ( £340 plus vat )

 

They confirmed there is a vacuum solenoid which does something to the EGR, about £45 plus vat

 

I note your comments re Engine Code , I also agree to a degree about EGR cleaners and injector cleaners in the fuel tank

 

The only real way to clean an EGR is strip / soak and clean it

 

It would be interesting to fully understand how the EGR opens , when / how long / what temperature / stays open / open & closes / how frequent 

 

Anyway, my emulator delete arrives in post today, so if my EGR continues to play up in the future I can fit it 

 

 

[EGR code P0403 Superb 2.0 TDI 90k]

Hi

 

By engine code I mean fault code as in post above P0403 = EGR circuit fault

 

Strangely enough I have done 2 long journeys and all OK at present

 

I have purchased an emulator EGR delete and will keep this in reserve , at present I am running fuel cleaner in the tank now and will also try an EGR spray cleaner for what it's worth 

 

If EGR completely fails I can then delete it , however the car is running so well and never showed any physical signs of hesitation / poor idle etc that I will carry on as I am at present and see how things go 

[EGR code P0403 Superb 2.0 TDI 90k]

Code in post P0403

Yes it has a vacuum solenoid

One part of the EGR is motor operated , there is also a other part vacuum operated 

[EGR code P0403 Superb 2.0 TDI 90k]

Superb 2012 2.0 tdi 90k miles

 

Flashing glow plug light came on driving the other day and then reduced power mode

Plugged in to see code  P0403

 

Turn engine off and it's then been OK for many miles , it's a bit concerning as I use car to tow a light caravan and limp mode on a motorway wont be fun

 

So it points towards EGR issue, yet the car drives perfectly, no idle issues , no flat spots , no hesitation , engine temps all look normal 

So for reliability do I start to consider changing the EGR ? Might be cheaper to change to EGR vacuum solenoid first as that's only £45 ?

 

Could it be an electrical issue / poor connection causing this fault code? 

 

Any advice please, thanks

[Superb 2.0 TDI (12) EGR removal to clean]

How much of a pig of a job is it to remove the EGR to inspect / clean ? 

I am good mechanically,  just lazy as hate working on cars on the driveway 

Some videos suggest driveshaft removal for access 

Sounds a PITA 

[Skoda Super 2.0 TDI 2012 Code P0403]

Hi new ti me car , 91k miles , done 1500 faultless miles of mixed journeys then flashing glow plug lighthas come on driving recently.

 

Car goes into reduced power mode.

 

Put on a reader and code P0403 comes up, EGR Control circuit.

 

Quick Google and this could point to EGR solenoid valve playing up ?

 

Car drives / Idles / Accelerates perfectly when light off so I don't think EGR valve is actually stuck ?

 

Any informative thoughts ? 

[Skoda Superb 2012 Amundsen satnav unit update]

I tried to type my vin in the Skoda download to get updated satnav file but I think my car is too old as it wouldn't accept my vin

 

My satnav is on V4 , any way of getting V12 free other than paying £30 on Internet for an SD card ? 

 

Thanks 

[Superb 2012 TDI Fual Guage not reading full]

Thanks for comments 

Are after market senders any good or is it an order from Skoda job ? 

[Superb 2012 TDI Fual Guage not reading full]

Seen a few YouTube videos on calibrating the correct reserve level

 

But as you say likely a wrong resistance figure either due to corrosive connectors or faulty sender

 

https://youtu.be/evBqjMyqpsY

[Superb 2012 TDI Fual Guage not reading full]

Hi , filled it up to the top slowly until evidence of brimming 

Needle still shows just 3/4

Looks like either a resistance sender fault or pos needs recalibration on vagcom

 

I am going to monitor it on trip to see what dial reads as fuel gets low in tank

 

It's def faulty 

[Superb 2012 TDI Fual Guage not reading full]

Hi

New to me 12 plate 2 TDI , when I filled up at the garage themselves guage is only reading 3/4 ?

 

After a bit of googling I understand the guage can be recalibrated by software, although fuel tank would need to be at reserve level

 

Any other tips ? Someone suggested disconnecting battery ? 

 

Could be a resistance fault with sender in tank ?

 

Any thoughts ? Thanks