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2 Warning lights and Limp Mode!

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mine has gone into skoda with engine managment light dpf and glow plug light flashing, the dealers said it just need a regen and it will be sorted i told him that i dont agree and making me pay £45quid to have it done even though its under warranty :S.

i thought they couldnt regen if the car is in limp mode????

Edited by shaun_vrs

Had these lights on a Audi PD engine on a 07 plate turned out to be a broken down glow plug!

The glow plugs aint just for starting anymore they are part of the emissions system as well.

BIG Nick :)

What I'd like to know is why they can't just use a disposable canister like an air filter to catch the particulates that can be thrown away every 20k mile service or yearly.

Would get people back in the dealers too so win win.

I've had a pressure sensor replaced before and also when mine went into limp mode with the same lights on it was traced to a failed oxygen sensor. DPF's do indeed suck, would rather pay a slightly higher tax bracket I think.

yep, mine went at about 25k, replaced at home by the nice man from Skoda Assist. Warranty service was always brilliant with Skoda.

  • Author

mine has gone into skoda with engine managment light dpf and glow plug light flashing, the dealers said it just need a regen and it will be sorted i told him that i dont agree and making me pay £45quid to have it done even though its under warranty :S.

i thought they couldnt regen if the car is in limp mode????

I am not paying a thing. The regen will not work with the glow plug light flashing. I have tried and failed.

Tomorrow is D-Day. Will let you all know how i get on.

I am not paying a thing. The regen will not work with the glow plug light flashing. I have tried and failed.

Tomorrow is D-Day. Will let you all know how i get on.

As I understand it from our old Superb, The car goes into limp mode before the dpf is completely blocked enabling you to limp on & provided you get to the dealer in time they can plug the portable diagnostic into the car & have a programme to force it to regenerate whilst they drive it, something thats not available to the owner so your car may still regenerate, lets hope it does as if the dpf is beyond saving its classed as a service item & not covered under the warranty

As I understand it from our old Superb, The car goes into limp mode before the dpf is completely blocked enabling you to limp on & provided you get to the dealer in time they can plug the portable diagnostic into the car & have a programme to force it to regenerate whilst they drive it, something thats not available to the owner so your car may still regenerate, lets hope it does as if the dpf is beyond saving its classed as a service item & not covered under the warranty

Is that VAG COM able?

I'm thinking it should be but if so what would you have to do when doing the regen to prevent damage.

Is that VAG COM able?

I'm thinking it should be but if so what would you have to do when doing the regen to prevent damage.

VAS 505X, Clues in here for the Old Superb, dated 05 2006 happy reading

Changing the regeneration process of the Diesel Particulate Filter (DPF) using VAS 505X

M-L

Vehicle types: 3Uxx5x (Superb 2.0l/103 kW)

When presented with a Superb 2.0 TDi with the DPF light on, it is essential that you follow the process below for carrying out the DPF regeneration using the VAS 505X. You must not initiate “Guided fault finding†or “Guided functions†as the limit values are incorrect.

You should also remember that the limit value for the replacement of the DPF is 95% not 75% as it is currently stated!

Recommended procedure for the detection of saturation, regenerating or DPF replacement:

Detection of saturation: “Vehicle self diagnostics†01 – Engine electronics

08 – Block of measured values

Block 75, displayed field 3

Regeneration: 1. Speed over 40 mph

2. Engine speed 2000-3000 rpm

3. Enter Login function 11 number 21295

4. Watch the measured value block 75, field 3. The saturation value has to drop to 15%

The whole procedure takes 5 to 10 min, it is also necessary to ensure that the vehicle is driven above 40mph whilst maintain an engine speed between 2000 – 3000 rpm.

Replacement: If the saturation reaches a value of 95% or more, the DPF cannot be regenerated.

Saturation limit values: 1) Up to 75% - the regeneration is carried out during driving by engine control unit itself.

2) Between 75% - 95% - the regeneration is completed by using a VAS 505X diagnostic device.

3) Over 95% - DPF must be replaced.

Since brand disc version 10.24 the limit values will be changed and the use of “Guided fault finding†and / or “Guided functions†within the VAS505X diagnostic device will be available again.

  • Author

Exhaust Gas Pressure Sensor has been replaced on the car and has cured the problem. :)

Will be picking the car up later this morning.

Happy holidays, next week emoticon-0140-rofl.gif

  • Author

Cheers Mike. Thanks again for the help.

Just glad its all fixed and im getting it back. :)

Glad to hear it mate :thumbup: , but im the slowest again :(

  • 2 weeks later...

There must be something in the air - driving home this evening the "Control System for Exhaust Gases" light popped up on the dash, dropped the wife & the kids off back home & took it out for a blast - but to no avail, in fact it is now in limp mode. I have driven this car briskly to coin a phrase & it does around 20k motorway miles a year (had it 3 years) so there's no way it has not been properly re-generated.

So I jumped onto the PC, read up about similar problems here & will get it booked in tomorrow, if I get a strange look from the dealer whilst he scratches his head then I shall mention the Exhaust (DPF) Gas Pressure Sensor & the recall code mentioned above..... :yes:

Bloody typical, 2 months & 3K miles out of warranty - it's a conspiracy I'm telling ya!!

I'll keep you posted.

Edited by wilkopilko

I've had a similar problem but I'm not sure a 'blast' is the best solution.

I had the exhaust gas warning light come on about 500 miles ago. It went out after 100 miles of motorway driving. About 100 miles later the DPF regen light came on and after following the recommended procedure, this went out. Yesterday, the DPF regen and the exhuast gas warning light came on together after a period of 'spirited' driving- it would seem that the excess soot created during this harder-than-usual session has partially choked the DPF again. Today I followed the regen procedure and the DPF light went out within 10 minutes but the exhaust gas sensor light is still on.

The car is an Octavia VRS PD, it's done 55000 miles and is still under warranty. It never does shoping trips and it did have the exhaust gas sensor and software upgrade at about 15000 miles. I've read that ash is created when the soot is burned off during a regen and that this is not discharged from the filter. Eventually the filter will become blocked with ash and will have to be replaced. Does anyone out there know what sort of life can be expected from these filters on this car ? Any advice on life of the filter after frequent regens would also be appreciated. The fuel economy and performance has remained excellent throughout, although the mpg did drop during the spirited session and the engine idled at 1000 rpm ( rather than 750 rpm ) and felt a little rough, during the regen.

I've had a similar problem but I'm not sure a 'blast' is the best solution.

I had the exhaust gas warning light come on about 500 miles ago. It went out after 100 miles of motorway driving. About 100 miles later the DPF regen light came on and after following the recommended procedure, this went out. Yesterday, the DPF regen and the exhuast gas warning light came on together after a period of 'spirited' driving- it would seem that the excess soot created during this harder-than-usual session has partially choked the DPF again. Today I followed the regen procedure and the DPF light went out within 10 minutes but the exhaust gas sensor light is still on.

The car is an Octavia VRS PD, it's done 55000 miles and is still under warranty. It never does shoping trips and it did have the exhaust gas sensor and software upgrade at about 15000 miles. I've read that ash is created when the soot is burned off during a regen and that this is not discharged from the filter. Eventually the filter will become blocked with ash and will have to be replaced. Does anyone out there know what sort of life can be expected from these filters on this car ? Any advice on life of the filter after frequent regens would also be appreciated. The fuel economy and performance has remained excellent throughout, although the mpg did drop during the spirited session and the engine idled at 1000 rpm ( rather than 750 rpm ) and felt a little rough, during the regen.

Nicanon, please see my post HERE

Mine ended up being the pressure sensor - all is fine again.

Not sure about your filter question - sorry

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