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Thread: Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment)

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  1. Lightbulb Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment) 
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    OK,

    I have a USB illuminated borescope/endoscope, a very narrow diameter (4mm) camera
    with a light on 60cm of flexible but directable cable.

    I would like to use this to take a look at the general state of the EGR valve internals
    without stripping it down or taking it off the manifold

    Can this be done via access achieved through the removal of any connections?

    Anything else readily accessible via the removal of a pipe or hose?

    I realise that armed with the right fastening removal tools (as I am) and if
    in possession of the replaceable gaskets (2of, which I don't) it won't be too
    much of a chore for someone who has rebuilt engines in the past BUT
    I love gadgets.......

    I know taking a look-see will not be equal to examination after a stripdown
    but it would give me some confidence (or not) on what the planned dose
    of BG245 actually achieves as if it does remove clag it is as good as a lot
    of people say it is.......

    Will post the video survey(s) where we can all see them unless EGR-porn
    is banned

    Pip Pip

    Dr B

    2011 2.0 TDI Passat Saloon 98k miles
    ========================
    Using a XTrons bluetooth ODBII dongle and the RPM mobile app I can see the EGR error reading
    appears to go a bit berserk when I experience a judder when off the gas at 1800-2000 rpm on
    the motorway. It is usually at zero shortly after EGR change stops. My shakey logic makes me
    think the valve might need looking at?
     
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  2. Re: Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment) 
    #2
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    This uses the EGR cooler unit on the back of the engine level with the driveshaft. You can take the two feed pipes off (2 and 15) but you won’t need your bore scope as the crud is on show. I meant to take pictures yesterday of one we did on Monday but I forgot.

    This is the almost identical 1.6 system



    This is a new cooler



    You could take off the link pipe (8) from the head to the manifold and look down there. The one we did this week was so bad I had to put the pipes in the ultrasonic tank with 50% TFR for two hours at 80 degrees to get them clean.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


     
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  3. Re: Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment) 
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    Would removal of 2 and 15 mean replacement of the gaskets? Ditto 8 .... TFR is traffic film remover, I guess? SODIUM HYDROXIDE and stuff?
     
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  4. Re: Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment) 
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    You should replace the gaskets.... yes TFR is a very strong Alkali, truck wash. It attacks ally but not stainless steel.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


     
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  5. Re: Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment) 
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    lunapic_131671390780050_13.jpg

    From https://www.audi-sport.net/xf/thread...r-pics.159097/

    On the basis of the items identified in this photos, what would you
    remove to take a look inside OR is it just as easy to actually
    remove the valve replacing the following 2 gaskets?

    U03G 131 547 F Z30 Gasket
    U03L 131 547 B Z25 Seal (I read you can reuse this one if careful)
    U069 131 547 D DR1C Gasket

    Now these might be AUDI part nos and not VW ones

    Cheers

    JB
     
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  6. Re: Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment) 
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    They are all VAG part numbers but the U in front is nothing to do with it. That picture is not of the system I think you have, message me your REG number.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


     
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  7. Re: Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment) 
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    As I thought, you have the EGR unit around the back of the engine which is a CFFB. This unit



    This is taken from underneath the car six feet up in the air over the top of the subframe, the convoluted pipe you can see is number 15 in the diagram above, replacing one of these coolers takes my highly experienced techs 5 hours.

    4 ylinder 16v CR TDI EGR unit
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


     
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  8. Question Re: Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment) 
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    ****! not so accessible then

    Q: So presumably to fit a EGR blanking plate with a hole in it (or a solid plate + ECU tweak) would
    involve undoing the 2 bolts visible in the convoluted pipe end and fitting a plate between 2 gaskets?

    UNLESS the top of the pipe is more accessible? I need to better familirise myself under that
    plastic engine cover!

    Q: If the EGR is the issue at least the perforated plate would be easier than changing the ECU?

    I can also see the lambda sensor top (?) thus i guess that is where the cat lurks

    Q: .....not knowing how diesels combust, am I thinking the MOT can be passed with an empty
    CAT casing an empty DPF casing and a couple of bits switched in the ECU?

    Thanks for humouring me with all these questions, this car is 32 years older than my other
    pride and joy so slightly more technologically advanced!

    Dr B
    Southampton UK

    As a matter of interest where do you trade out of? (IM if not allowed in open posting)
     
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  9. Re: Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment) 
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    You are talking about removing the EGR and DPF systems which is illegal, immoral and now an MOT failure, what are you a doctor of? Hopefully not respiratory systems.....
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


     
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  10. Re: Non invasive inspection via endoscope/borescope of EGR valve (effect of BG245 treatment) 
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    EGR & DPF deletion - considered it BUT it sounds like ECU tweaking and empty casings won't cut the mustard,
    the DPF non-function would be checked by the MOT tester, not sure how EGR function is?

    Never quite understood Diesel and Catalysts, are they Different Cats on diesels??? Ditto the function
    of the device is tested as it is on a petrol car.

    Once MOT'd the removal of the aforementioned would result in a fail if tested at the roadside by the
    MOT mermaids.

    The deletion in the ECU would just get rid of the nagging fault lights.

    I'm a doctor of road surfaces not lungs but point taken about me single handedly reducing my fellow drivers
    to coughing wrecks, I am ASTHMATIC but more addicted to bhp than ventolin......
     
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