Driving back from Derby last week the monster kept dropping into limp mode, constantly stopping and restarting the engine would drop out of limp mode albeit for 10 mins or so. Ran a diagnostic when I got hometown find the EGR was causing the issue. If I'd had VCDS with me I could have coded the problem to stop limp mode, but hey ho.

Dropped the car into Norwich dealer, who replaced offending article under Skoda used car warranty. Good job, the bill was over £800! It took 8 hours to get the damn thing out and new one back in. I then found out from my pal at Audi that the EGR is a common problem on the 140CR engine. Hmmm, so beware ladies and gents.

FFS! The EGR has been a 'common problem' for ages on the Octavia - mine went on my 2005 one and cost me £600 to replace out of warranty. I would have thought skoda could have fixed this by now. Wont be amused of my Yeti has this problem in the future.

 

What was the mileage on your car when it went? It was 90k on my octavia.

EGR? What is this?

Its a valve on the exhaust near the engine. Exhaust Gas Recirculation. Have a search in the Octavia 2 section.

It is part of the emissions control system.  It takes a portion of the exhaust gases and recirculates it into the air intake.  Since exhaust gases have low levels of oxygen this moderates the combustion process in the cylinder, reducing peak combustion temperatures.  Lower combustion temperatures mean less NOx emissions (but increased particulate matter.... smoke, hence the need for a DPF).

 

The other way of doing this is to run the engine hot (no EGR) but use a selective catalytic reduction (SCR) system in the exhaust to deal with the NOx; however this means having an on-board supply of urea solution (aka 'AdBlue').

 

EGR valves are notoriously tricky to keep reliable as they are exposed to combustion residues and by-products like water, residues and acids.

The monster had 55k on the clock when the EGR failed.

If you have a 4x4, it takes longer to replace the EGR due to problems with access to some of the bolts. 4 hours is the book time for a 2WD, as I said before my dealer took 8 hours.

FFS! The EGR has been a 'common problem' for ages on the Octavia - mine went on my 2005 one and cost me £600 to replace out of warranty. I would have thought skoda could have fixed this by now. Wont be amused of my Yeti has this problem in the future.

 

What was the mileage on your car when it went? It was 90k on my octavia.

 

A bit of balance might be useful here.

Firstly it does not appear to be a common problem on the Yeti, and secondly, from what I've read the "problem" appears to be on the older, dirtier PD diesel, not the current CD spec one.

It affects multiple VAG engines. A google will find it on Audi and VW forums as well as here. The EGR is slightly different on each engine too. My octavia was a petrol for instance and the OP is referring to the 2.0 CR in his avatar bit I asume.

Yet is probably too new for it to be called a common problem. May see more failures as the cars get older.

It's the first time I'd come across the problem personally and I've been tuning VAG engines for 10 years.

It's pretty common in Renault Diesel engines as they get older, my wife's first Modus had the same problem at 50k miles.

It's the first time I'd come across the problem personally and I've been tuning VAG engines for 10 years.

 

I wasnt scare mongering. My point was I had hoped that between the manufacture of my 2005 octavia and the new CR engines they may have sorted this out. Its an expensive bill for a car only having done 55k miles. Lucky yours was still in warranty. Sometimes a clean fixes them but often its a replacement. I had mine cleaned at first but the fault returned. The sad thing is the cleaning first makes the overall bill more if its not successful!

 

http://www.briskoda.net/forums/topic/272158-egr-fault-is-this-common/

 

http://www.briskoda.net/forums/topic/283348-egr-valve-problem/?hl=%2Begr+%2Bfailure#entry3361853

 

http://www.briskoda.net/forums/topic/137448-egr-valve-failure-or-faulty-sensor/

 

http://www.seat-forum.co.uk/forum/viewtopic.php?f=710&t=56904

 

http://www.honestjohn.co.uk/forum/post/index.htm?t=94553

 

http://uk-audis.net/topic/4174-egr-valve-problems-again-audi-a4-20-tdi-sline-56-plate/

 

http://www.audiforums.com/forum/b5-models-69/egr-valve-throttle-body-cleaning-150913/

 

http://www.vwaudiforum.co.uk/forum/showthread.php?141534-EGR-valve-failed

 

http://www.pistonheads.com/gassing/topic.asp?t=774805

 

http://www.volkswagenforum.co.uk/f18/vw-golf-2-0-tdi-egr-insufficient-flow-5375.html

 

http://www.honestjohn.co.uk/forum/post/index.htm?t=100986

 

http://www.volkszone.com/VZi/showthread.php?t=607703

 

http://www.myturbodiesel.com/1000q/egr-system-clogging-TDI.htm

I think I'm more surprised I've not seen any more EGR issues in VAG engines after all this time. But as always when you look for a problem, you tend to find reports of it. But given where it is in the engine, it's hardly surprising that there are failures.

Do you fill at Morrisons a lot?

Never use Morrisons, it's Asda or Tesco diesel for me!

Just for some perspective, the BMW M47 engine fitted to my Freelander also has problems with the EGR. A popular mod is to remove it!

This I have done. We will see what it is like come MOT tine, but by all accounts the engine emissions aren't a problem in these engines.

Oh, and the best bit. 10 minutes to change!!!! : lol:

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