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Author Topic: Advice needed on EGR/Throttle Body problem.  (Read 1858 times)

Offline stakhanov

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  • Model: Alhambra Mk2
  • Spec: SE TDI 2010
  • First Name: Andrew
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Advice needed on EGR/Throttle Body problem.
« on: April 18, 2018, 07:10:09 PM »
My car (Seat Alhambra SE TDi Sport 2010) broke down the other day. The breakdown company said it was an EGR fault and wanted £600 to fix it. My local garage wants £400 but from what I can see the part only costs £120 so I'd like to try and do it myself. From what I've read, it might even just need cleaning out.

The problem is that I can't locate it in the engine. I have looked for a long time at several videos/pictures/guides etc. but where I expect it to be, all I find is a 'Throttle Body' (I got this from the part number after I removed it - 038 128 063 L).

So I have some questions:

1. Does my car even necessarily have an EGR?
2. Is it possible that the Throttle Body is the thing at fault? (it's significantly cheaper)
3. If there is an EGR, where is it? I've spent a long time looking for it from all angles into the engine.

Thanks.

Offline johnnyroper

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #1 on: April 18, 2018, 09:52:25 PM »
Yes it will have egr for definite.

What engine do you have,what was the breakdown you experienced and what led breakdown company/garage to suspect egr?

I am gonna guess at a 2.0tdi but is it last of PD or is it CR?

Also the throttle body as itís called is just anti shudder valve it closes when switching off engine it does nothing more than air smooth shut down and help to stop runaway.

Offline stakhanov

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  • Model: Alhambra Mk2
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  • First Name: Andrew
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Re: Advice needed on EGR/Throttle Body problem.
« Reply #2 on: April 18, 2018, 10:59:23 PM »
It's a 1.9tdi (sport) diesel.

I noticed for a while (about a month or two) that sometimes when I accelerated, the power dipped slightly. I think I ignored it hoping it would go away. Then when my wife was out in it, she started it and it died on her and wouldn't start. Since it's been back on my drive, I have started it and it starts, but immediately 'struggles' and dies, as though some air or fuel isn't getting into the engine.

My wife said they plugged something into the car so I guess it's the ECU they got an error code from.

Not sure what PD or CR is.

I tried to post pictures earlier but when I try, the post never gets submitted, it hangs.

Offline brianh

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #3 on: April 19, 2018, 12:59:32 AM »
What browser are you using to post pics with - Firefox seems to work ok if you want to try that?

The cutting out after it starts is reasonable to assume is EGR related if you have one - The usual thing is they fail somehow and end up stuck open, hence choking the engine with its own exhaust fumes.

VCDS should work with your vehicle, and as long as you've got a laptop to use it on the leads are available for little cost. Having the actual codes its failing on would help you find more info on here and elsewhere.

Offline johnnyroper

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #4 on: April 19, 2018, 05:52:11 AM »
So thatís a late PD engine then, it stands a chance the EGR is stuck open but could also be the anti shudder valve sticking that area does get particularly gummed up.

CR is common rail injection where you have a high pressure fuel rail and 4 electronically controlled injectors.
PD is pump deuse is a VAG specific injection system where the injectors themselves are a pump also driven off camshaft and also electronically controlled.

As Bryan said above a fault code would be handy so it can point you in right direction.

Offline stakhanov

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #5 on: April 19, 2018, 06:40:46 PM »
6048-0

Offline stakhanov

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #6 on: April 19, 2018, 06:48:00 PM »
6052-0

Offline stakhanov

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #7 on: April 19, 2018, 07:01:36 PM »
I've tried both Firefox and Chrome and when I attach images and try to post, the page just goes white and hangs. Somehow managed to get the two pictures above to send but now it's playing up again (seem to work ok with just text).

Anyway, the two pictures show where I expected to find the EGR. What is there in its place is the 'throttle body'.

I don't have any fault codes as I'm only going by what they breakdown guy said to my wife, which was simply that it was the EGR at fault. I may well look into the VCDS but will have to at least wait to get an interface connector delivered.

For now, I'd be perfectly happy just taking the EGR off, cleaning it out and seeing if it helped, or even buying a replacement if that didn't sort it. If only I could find the damn thing.

Offline stakhanov

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #8 on: April 19, 2018, 07:18:31 PM »
Still not able to post any more images. Something like this is what I expected to find:

http://www.ebay.co.uk/itm/like/323137708079?clk_rvr_id=1504276996213&vectorid=229508&lgeo=1&item=323137708079&rmvSB=true

When I took the throttle body off, it seemed pretty free from any sludge or soot, and the revolving door (anti shudder valve?) moved freely (seemed connected to some gear/motor system in the sealed body part). I notice on a youtube that the EGR valve I've been trying to find has an anti shudder valve on it (the black thing on the one in the link I put above). Other videos talk of the anti shudder valve being in the throttle body. Is it possible that because I seem to have an anti shudder valve in the throttle body, I don't have an EGR (or at least not like the one in the link above). If  that's the case, why would I get an EGR fault on the ECU? Might it be a generic term and really be talking about the anti shudder valve in the throttle body? I'm clutching at straws here.

Offline stakhanov

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  • First Name: Andrew
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Re: Advice needed on EGR/Throttle Body problem.
« Reply #9 on: April 19, 2018, 07:26:32 PM »
6058-0

Offline stakhanov

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #10 on: April 19, 2018, 07:28:55 PM »
So that's a screen shot of a youtube video of a Sharan. The black pipe just to the right of the guy's hand leads to what I think is the EGR valve. As you can see in my first picture above, the black pipe in my engine runs to the throttle body and there is no EGR in sight.

Online Mirez

  • Pondering the next mod...
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  • Model: Galaxy Mk2
  • Spec: 03 115PS Ghia
  • First Name: Mark
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Re: Advice needed on EGR/Throttle Body problem.
« Reply #11 on: April 19, 2018, 07:53:58 PM »
Nearly all Galaxys, Sharans and Alhambras have the 1.9 PD engine in either AUY, ASZ or BTB engines. What you have is a 2.0 BRT engine which VAG started using toward the end of the PD engines life (2007-2010). Nearly everthing you find online will relate to the earlier engine codes as they were so dominant so that's why it looks different.

You do still have an EGR though, it's incorporated into the valve body and is that cylindrical looking thing. They are known to gum up significantly more then the earlier versions.
03 Ford Galaxy 1.9 TDI 115 Ghia in Spruce Green Metallic
With cream leather interior, Full Bodykit, Remapped at 145bhp, Lowered on 18's
14 VW Tiguan 2.0 TDI 177 AWD R-Line in Deep Black Pearl
With panoramic sunroof, bi-xenon headlights remapped at 205bhp.
08 Ford Transit 2.2 TDI 115 in Frozen White
With retrofitted everything except another slidey door! :)

VCDS HEX/CAN - Scans/Coding done in Wiltshire in exchange for winegums! :)

Offline stakhanov

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  • Model: Alhambra Mk2
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  • First Name: Andrew
  • Region: South East
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Re: Advice needed on EGR/Throttle Body problem.
« Reply #12 on: April 19, 2018, 08:07:17 PM »
Ahh. And I see from another thread which you and johnnyroper commented in a couple of years back there is a link to a parts diagram which seems to show my set up (looked with torch and mirror and it has the same code - 03G 131 501 E):

6060-0

which would mean I access the EGR from the rear of the cylindrical part in my second picture I assume.

At least I can now have a go at getting inside it and seeing if it's clogged up.

Thanks for your help.

Offline stakhanov

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #13 on: April 19, 2018, 08:52:42 PM »
6062-0

Offline stakhanov

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #14 on: April 19, 2018, 08:59:55 PM »
So managed to get it off. Looks pretty filthy to me. Aside from scraping it off and brushing it down, can you advise any other cleaning method? Degreaser? WD40?

(sorry I keep posting pics separately but it doesn't seem to post properly when I try to combine text and images)

Offline johnnyroper

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #15 on: April 19, 2018, 09:57:24 PM »
I have found soaking in petrol or paraffin overnight frees up all the gunk. Just make sure just the egr part is submersed and then give a good brush off and dry before refitting.

Offline stakhanov

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #16 on: April 20, 2018, 12:37:43 PM »
After cleaning and refitting, it works fine now.

As expected, I have an engine warning light which I imagine needs resetting. Am I likely to be able to do this with the VCDS or would I need to get a garage to do it?

Online Mirez

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Re: Advice needed on EGR/Throttle Body problem.
« Reply #17 on: April 20, 2018, 02:16:09 PM »
Good work, yeah you'll be able to clear it yourself with VCDS.
03 Ford Galaxy 1.9 TDI 115 Ghia in Spruce Green Metallic
With cream leather interior, Full Bodykit, Remapped at 145bhp, Lowered on 18's
14 VW Tiguan 2.0 TDI 177 AWD R-Line in Deep Black Pearl
With panoramic sunroof, bi-xenon headlights remapped at 205bhp.
08 Ford Transit 2.2 TDI 115 in Frozen White
With retrofitted everything except another slidey door! :)

VCDS HEX/CAN - Scans/Coding done in Wiltshire in exchange for winegums! :)

 

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