Hey guys,

 

Had my Skoda fabia Monte Carlo 1.6tdi for about 8 years now, 107k miles, she's been great. I remember reading about the EGR issues and I'm finally here. 😞

 

After a new cambelt and water pump I'm getting a warning light, I used my reader and it was giving me a error code of 7462. Which seems to be related to the EGR.

 

The error comes up randomly. I can drive happily for 10 mins, or even 2 hours with no errors, but then occasionally it goes into limp mode. I restart the engine and it's fine again. 

 

After researching the forum it seems like this is very common and some people have recommended a dpf cleaner, I was thinking of trying liquid Moly's dpf cleaner, any good?

 

I've got my logs from vagdpf, and the ash content is high.

 

The car was fine before the cambelt and water pump so I was wondering if there was something the garage could have done to check first?

 

Cheers any tips I've missed would be handy. Thank you.

It's an egr problem, the only solution is to replace it, no cleaner would sort that out. The major problem with the egr is the opening mechanism where it wears out and jams + the soot buildup but it's likely to be the mechanism. 

 

You can add a DPF cleaner for your DPF  but it's temporary as well as the ash will not burn, it's more for the soot. Again the only solution is to clean it or replace it. 

 

I've cleaned my dpf by taking it off and taking it to a dpf cleaner place where they pumped chemicals through it. From the top it looks like new but I'm yet to test the difference. £200 that cost me. 

 

I would recommend taking it to a garage and have the egr replaced if you can't do that yourself. 

 

One last solution which I haven't tried and am skeptical about is this egr emulator which people have used on here and advise their issues have gone away. It's about £100 from eBay and it's plug and play.

Deep down I know that about the cleaner 😞 but if I need to fork out 700+ then 25 quid on a spray can is worth a punt I thought haha.

 

I was looking at these also, I was more worried about the exhaust gas running very hot I'm not sure of the affects on the engine.

 

Cheers. 

 

 

I'm there with you on the cheaper fix as I've bought products like that out of desperation. 

 

I don't know much about the impacts of no egr with dpf in place. Many threads been down that rabbit hole already, I'm not prepared to start that topic again. 

Cheers guys, I'll try the spray and report back for anyone who finds this.

 

I'll get a quote from the garage. But tbh I'll probably just skip and get a new car. Always wanted an octy vrs. 

8 hours ago, Mattyboy91 said:

Deep down I know that about the cleaner 😞 but if I need to fork out 700+ then 25 quid on a spray can is worth a punt I thought haha.

 

I was looking at these also, I was more worried about the exhaust gas running very hot I'm not sure of the affects on the engine.

 

Cheers. 

 

 

 

Your logic is massively flawed, instead of spending £700 to fix it, you'll now spend £725.

 

If you've ever seen a clogged DPF you'd know that a can of magic jizz ain't gonna cut it.

 

I cut one open recently because the idiot owner wouldn't believe me, I showed him the matrix solid with Ash and explained it was way beyond any cleaning process known to man, I drilled a big fat hole through it with an SDS bit so he could see the sludge went all the way through.

So it's pointless replacing the EGR valve without replacing the dpf aswell? 

 

 And out of curiosity whats your preferred way to get to it, do you go underneath or above?

Edited 14 October, 20223 yr by Mattyboy91

You need to drop the subframe to pull the DPF out as it's a one piece with the CAT.  I don't know if you can access the EGR without dropping the frame, I believe you can but it's very tight. 

 

Also, the spray thing, I think those are made for the old EGR types where it was located near the intake, with our models I doubt any spray will ever enter the egr as it needs to do a massive loop before it ever touches that valve. You'll endup spraying the turbo, intercooler, intakes manifold etc, I don't even think anything will ever reach the EGR 

35 minutes ago, Bertie90 said:

You need to drop the subframe to pull the DPF out as it's a one piece with the CAT.  I don't know if you can access the EGR without dropping the frame, I believe you can but it's very tight. 

 

Also, the spray thing, I think those are made for the old EGR types where it was located near the intake, with our models I doubt any spray will ever enter the egr as it needs to do a massive loop before it ever touches that valve. You'll endup spraying the turbo, intercooler, intakes manifold etc, I don't even think anything will ever reach the EGR 

Yeah I noticed that when looking at the diagrams of the engine lol :(. A year after I got the car I found all the EGR issues injectors etc, since then I've tired to avoid it as happening as much as I could, oh well.

 

Is it just a coincidence that this happened after the cambelt and water pump change? Cheers.

 

 

28 minutes ago, Mattyboy91 said:

Yeah I noticed that when looking at the diagrams of the engine lol :(. A year after I got the car I found all the EGR issues injectors etc, since then I've tired to avoid it as happening as much as I could, oh well.

 

Is it just a coincidence that this happened after the cambelt and water pump change? Cheers.

 

Yes.

I fell out of love with this car. It had a lot of issues over the years and I regret not selling it when I had the chance. I spent £1300 in unnecessary parts recently on it trying to workout a stupid issue. I'm putting up for sale after sorting out the injector seals.  Rant over.

 

 

Good luck with yours 👍

53 minutes ago, Bertie90 said:

I fell out of love with this car. It had a lot of issues over the years and I regret not selling it when I had the chance. I spent £1300 in unnecessary parts recently on it trying to workout a stupid issue. I'm putting up for sale after sorting out the injector seals.  Rant over.

 

 

Good luck with yours 👍

Best of luck with everything mate. I had the chance to part exchange it about 3 years ago, Kicking myself haha.

It's really not a great engine, it gives trouble in all the VAG vehicles it's used in, usually injectors fail, but EGR and DPF issues are common to all Euro 5/6 engines from all manufacturers that don't do motorway miles.

 

If you're not doing motorway miles DON'T buy a diesel, 'twas ever thus, but particularly so nowadays, maintenance costs are becoming prohibitive, spend a bit more at the pump on petrol for peace of mind.

yeah I think the lockdowns killed her tbh.  Anyone looking for a new car? 🤣

29 minutes ago, sepulchrave said:

If  you're not doing motorway miles DON'T buy a diesel, 'twas ever thus, but particularly so nowadays, maintenance costs are becoming prohibitive, spend a bit more at the pump on petrol for peace of mind.

that's why it's our 3rd car, most of it's life it has done just motorways. Never done a short journey, we have our workhorse for that which is a 1.6 petrol roomster and frankly it's a lot more reliable with the same hp. 

Now this isn't recommended due to legal reasons but for half the price you can get the egr blanked off with the DPF gutted while improving driveability/response and economy etc. It's a very tempting option although illegal

Had my first quote of 800 ( Dynes motors). But I was wondering does anyone know which erg valve is decent to fit? 

 

EGR and cooler.

The stock Skoda one is 500.

Hella is in sale for 160. 45% off.

Pierburg is 260. Skoda car parts (EU). (400 euro car parts)

 

This is me looking around with vat.

 

Anyone have any experience with the different types or what the garage would use?

 

 

Cheers,

 

Matt.

 

 

Edited 5 November, 20223 yr by Mattyboy91

Hi there, sorry to hear your having so many issues with your car, before changing the egr valve I would first check the vacuum diaphragm operated flap on the egr valve is moving freely. On my car (2.0 tdi superb mk2 has same or very similar egr valve) the flap had seized and the car was going into limp mode and throwing egr valve codes. The only way I found out the egr had not actually failed was by running a test through vcds and checking the gears weren't stripped on the egr motor. 

If the egr has truly failed then regarding brands of parts I'm not sure which is best, I believe pierburg is the oem for vw group egr valves of this era but I'm not sure.

Yeah I think your right on the pierburg. Cheers for those kind words and your experience. It's been ok but last week it's just constant now, glow light always on and coughing. It'll need to be properly diagnosed tbh.

 

When you say the flap, you mean the actually component inside the sealed EGR unit. EGR flap itself or is this a different component? Cheers 

the diaphragm and flap I referred to is circled in blue, what I did is disconnect the vacuum line and and move the flap arm back and forth with a bit of wd40 to free it up.

However your problem seems a little different,my car went into limp mode every few hundred miles whilst yours is constant. This combined with the rough running from what I understand suggests the egr valve itself is stuck partially or fully open which is indicative of a mechanical failure or seizing of the valve which sits on the left of the unit in the photo. Again from what I know as a amerture DIYer this is a common problem, happened on my 2.0tdi superb and on my parents 1.6tdi golf. I hope this information is of some help to you, I know how stressful it can be when things start going wrong with your car.

Ahh right cheers for sharing that! I'm going to get a few quotes I'll post them back here just in case there useful for people

 

I'm half tempted to just trade it in for scrap and get a octy vrs. I've always wanted one. 

Plus you need to crawl under and check the flap, it's a very tricky job an garages don't do that. Only if you're DIYing

Skodas quote was 1.5k for parts and labour. Lol 

they remove the subframe to get to it, plus realignment etc. The part is about £800.

Which part are you referring too?

 

I've found the OEM egr for 400, 140 for the Hella egr.