My dpf may not have had a chance to regen and now the engine and dpf lights are on and the coil light is flashing. I am also worried I may have bad connections somewhere as the offside dipped beam and rear lower lamp aren't working but they did work intermittently and after swopping lower bulbs at the back and a little tap, both sides worked again. I'm not sure how to change the Elegance dipped beam. Local Skoda said to change the bulbs but I need to look into the wiring and check for water in the housings. I feel like they could've better explained why the dpf and throttle body needed replacing. Apparently oil was leaking onto the throttle body. The car is in limp mode. I was kind of hopeful and threw money at a dpf pressure sensor but didn't replace the tubes as I couldn't reach down there. No difference. I tried a quick regen on a protools data connector but no joy and I'm doubtful of how well the extended forced regen will work as the car is in limp mode, filter load shows 0% and temp after dpf is showing 0.. a friend is willing to manually flush the dpf to save money but I want to make sure everything else is ok. I want to hook up to a proper vcds system or something of a similar name like vagcom. I'm trying my best to save money but I need it sorted efficiently asap. Can you please connect me with someone near Watford who can help? the only fault showing on the protools unit after clearing was p242f .. bank 1 clogged/restricted.. something like that. Im suspecting the exhaust temp sensors down by the dpf but don't want to throw away money unnecessarily. I'm not sure why when looking at the car data I can only see 0 on the dpf filter load but I am getting soot, ash and other values. Also why there is no readings for exhaust temp there. If someone is willing to help me at a good price with clear contact I'd be willing to travel and look at getting more service soon.

Btw my car is from 2008 and has a CBBB engine (CR 170).

Any advice on buying Vcds from ilexa.co.uk? Good idea or overpriced? I'm tempted to but then I'll "have" to always have VAG on my drive. I guess I better start saving for a lift or a manhole in my shed or else just get some decent jacks.

Any advice on buying Vcds from ilexa.co.uk? Good idea or overpriced? I'm tempted to but then I'll "have" to always have VAG on my drive. I guess I better start saving for a lift or a manhole in my shed or else just get some decent jacks.

Sure, you can buy from Gendan or Ilexa.

Or you can do what a lot of us have done - save £13 and buy from 'NHN' (Nigel Hobden). He sells the genuine cable for £250. Send him a PM.

From the symptoms you describe I think you've passed the point of 'trying to save as much money as possible'.

Get the car booked into a Skoda dealer and pay them the £75 diagnostics fee so that you can have a proper diagnosis done.

If you changed the exhaust gas pressure sensor yourself then I assume you've programmed it too? You can't simply swap out the sensor and expect it to work correctly. These sensors are £80 - money you could have spent getting the problem properly diganosed.

It's now too late to attempt a normal regen, it needs hooking up properly and a forced regen carried out, assuming the soot level hasn't exceeded the maximum levels allowed.

Please don't pay someone to flush out the DPF, it's a botch and one that's not guranteed to work either. A proper DPF removal and remap can be had for less than £400.

I see! Thank you very much ksr and silver1011.

I was charged ninety pounds for the diagnosis but I've been meaning to speak with the engineer himself to better understand his work. Everyone has been very professional but I want more. I'm worried about what kind of long term implications dpf removal may have. I'd certainly like to unleash the engine with more power and efficiency but could it unpredictably affect reliability and the lifespan of things like the cambelt? I guess I should check with my insurer. Do I need to be concerned about additional tax or law when it comes to emissions testing?

I can try a force regen with my friend's protools kit but I don't want to waste time if it won't work in limp mode. It does recognize my engine but I wonder if it has all the necessary parameters about the dpf to do it successfully. It doesnt show any successful regens in the log only about 13 attempts. Unfortunately the stamped book doesn't show any sign of it being changed and thats all i have to go by atm but 0 regens sounds odd for a 120k mile car. I guess I could give it a shot eh

I can try a force regen with my friend's protools kit but I don't want to waste time if it won't work in limp mode. It does recognize my engine but I wonder if it has all the necessary parameters about the dpf to do it successfully. It doesnt show any successful regens in the log only about 13 attempts. Unfortunately the stamped book doesn't show any sign of it being changed and thats all i have to go by atm but 0 regens sounds odd for a 120k mile car. I guess I could give it a shot eh

Wow. I knew ProTools was a powerful software package, but never knew it could force regens !!!!! My daughter does use it for recording in the studio, though !!

Lol! Ok maybe MacTools rather. Oh dear! ProTools is cool though :p it may well be in one of my projects but I'll probably just direct.

From what you have described it sounds Identical to my situation. I got the DPF light on the Dash and let it do the regen, Soon after the light came on again and was eventually joined by the engine management light. Tried to drive harder to clear it but soon the coil light came on and it went in to limp home mode. Luckily mine is a company car but I'm sure that wont make you feel better. Forgot to mention a local garage had put some fluid in to assist with Regen. I then drove 3 hours from Chester to Scotland thinking this would have solved the problem. A few days later the light appeared again. Soon to be followed by the others. Booked it in at Skoda and they said the DPF was most likely shot but would try a sensor replacement to see if that fixed it. It didn't so a new DPF had to be ordered. After much F**king about I got my car back £2000 lighter! The car was only a month out of warranty and Skoda generously agreed to pay £400

you would think they would have paid for it all at just over 3 years old.

how many miles has your car done.

bill

Get the car booked into a Skoda dealer and pay them the £75 diagnostics fee so that you can have a proper diagnosis done.

It's now too late to attempt a normal regen, it needs hooking up properly and a forced regen carried out, assuming the soot level hasn't exceeded the maximum levels allowed.

Or find someone with VCDS and a copy of ElsaWin who is willing to do the same for considerably less than £75... It is just an automated scan for errors plus flipping a few registers in engine's ECU. About 10 minutes worth of work total assuming nothing else is broken.

The error code you quoted is not very clear, I must say I find VCDS codes much more readable, perhaps the tool you are using has a web page explaining it in more detail? But since error code mentions restriction, I am willing to risk statement that either there is a genuine restriction or pressure sender on DPF is broken.

Forced regen is easily done, but if normal regen did not help it means something else is broken. Our May 2012 Roomster has had a DPF exhaust temp sensor (S3) recently replaced under warranty after just ~5k miles or so, clearly it would seem DPF components are not most durable/high quality.

Edited 30 November, 201213 yr by dieselV6

Or find someone with VCDS and a copy of ElsaWin who is willing to do the same for considerably less than £75... It is just an automated scan for errors plus flipping a few registers in engine's ECU. About 10 minutes worth of work total assuming nothing else is broken.

VCDS isn't much use when attempting to perform a forced regen.

I can assure you forced regen is just flipping a few bits in the adaptations in the right sequence. I looked at Elsa manual and it was a 5-6 step procedure. VCDS is more than enough to do it, I suspect even generic OBD would be able to do it.

Edit:

Here it is, straight from Ross-Tech, for all engines of interest.

http://wiki.ross-tech.com/wiki/index.php/Diesel_Particle_Filter_Emergency_Regeneration

That Hex-USB I bought 9 years ago sure has paid for itself several times over by now...

Edited 3 December, 201213 yr by dieselV6

Oh wow! Spot on, thank you.

I'm thinking of investing in the lead as I kinda like the idea of self servicing German cars. They advised me that just changing the pressure sensor would not be enough if it was the problem. The VCDS should allow me to conveniently reset the sensor values thereby starting a fresh historical comparison table for interpretation of information like about how the reliability of the sensor is holding up. I guess they sort of need to have a self calibration going on like scales. I'm really sorry the tool I used was a sort of universalish deal from Snapon.. I have a tendency to confuse them with MacTools.

*to edit

Edited 3 December, 201213 yr by nimai

I can assure you forced regen is just flipping a few bits in the adaptations in the right sequence. I looked at Elsa manual and it was a 5-6 step procedure. VCDS is more than enough to do it.

Weird, my dealer claimed to have performed a forced regen on my PD170 but it never left the workshop.

Straight from the link I had posted earlier:

Regeneration while Standing/Idle

Prerequisites (General):

• Ignition ON
  
• Engine ON (Idle)
  
• Fuel Tank at least 1/4 full
  
• Transmission in Neutral/Park
  
• Parking Brake engaged
  
• Coolant Temperature above 70 °C (see MVB 002.4)
  
• Particle Filter Load below Specification (see MVB 108.2/3 -or- 241.2/3 VCDS should give the specified values)
  
  • If the Particle Filter Load is above Specification the Particle Filter needs to be replaced since the car may burn down when regenerating.
    

  [*]Power Consumers ON (Light, Seat Heating, Front/Rear Window Heater, Climate Control)

  [*]Engine Hood Closed

[select]

[01 - Engine]

[security Access - 16]

• Enter the Code shown by VCDS next to Adaptation Enabling (e.g. Regeneration while Standing)
  

[Do It!]

[basic Settings - 04]

• Select Block for Regeneration while Standing
  

[Go!]

• Follow the Instructions on the Screen
  

[Done, Go Back]

[Meas. Blocks - 08]

Select Blocks 099 and 108 at once.

[Go!]

MVB 099.2: Exhaust Gas Temperature before Turbo Charger

MVB 099.3: Exhaust Gas Temperature before Particle Filter

MVB 099.4: Exhaust Gas Temperature after Particle Filter

MVB 108.2: Particle Filter Soot Mass (calculated) Alternate group 241.2 if 108 is blank

MVB 108.3: Particle Filter Soot Mass (measured) Alternate group 241.3 if 108 is blank

Now let the Car run with Raised Idle until the Particle Filter Load is as low as possible (close to 0 %).

[Done, Go Back]

[Close Controller, Go Back - 06]

Yeah, that's what confused me, a regen can be performed at idle on the CR engines. According to your link my PD needs to be driven.