s80 2.5D d5252t egr

Discussion in 'Volvo S80' started by robbo, Aug 26, 2010.

  1. robbo

    robbo Guest


    I have a year 2000 volvo s80 2.5d (D5252T engine).

    I need to replace the egr, but do not have a manual with this engine in.
    Does anybody know the location of the egr or have a manual that is in
    electronic form that they can send me?

    Thanks in advance

    robbo, Aug 26, 2010
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  2. robbo

    Einstein Guest

    It looks like this:


    You can easily see and access it from the top. Instead of replacing it
    you can also just blok the egr. Don't be alarmed if the cloud of smoke
    behind your car has disappeared after a few hundred miles. Your engine
    is still running, but with less sooth inside. You can buy tdi egr block
    plates for this engine for a few bucks. I did it myself on my S70 with
    the same engine.

    Einstein, Aug 26, 2010
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  3. robbo

    robbo Guest

    Thanks for the info Einstein.

    I have noticed that item just at the back of the engine behind the
    plastic engine cover and wondered if that was it.

    Can you please explain what the effect of blocking the egr is? and where i
    may be able to get one of those plates (UK if possible).

    Also can you tell me if there are any known issues with removing them
    whilst the exhaust is in situ

    Many thanks

    robbo, Aug 26, 2010
  4. robbo

    Einstein Guest

    The egr routes filthy exhaust gasses back into the engine. This reduces
    the amount of NOx in the exhaust gas. At the same time it slowly chokes
    the engine because all this sooth builds up. With the blocking in place
    the engine only gets clean air and after a while the engine will produce
    less smoke.

    My car gets a mandatory annual check-up where they also measure the
    exhaust gasses. Last time the carbon levels where so low that they
    checked 3 times. They figured their measurig device was faulty :) They
    don't check the NOx levels (in the Netherlands).

    Placing the blockage is done in 5 minutes. Just unscrew the return pipe
    just behind the egr. Then screw it back on with the blocker at either end.

    I bought my blocker at ebay or some other marketplace. If you can't find
    it you should join a tdi forum and ask them. They might even make one
    for you.

    good luck,

    Einstein, Sep 1, 2010
  5. i've stayed out of this, but enough is enough. the suggested answer
    is illegal almost everywhere. many places will catch you. a visual
    inspection by a qualified technician is mandatory where i live. they
    would notice. NO3 has been used as poison gas. don't do it! just r &
    r. oh it's "soot", not something that would sooth me.
    Richard W Langbauer, Sep 1, 2010
  6. robbo

    robbo Guest


    Thanks for all the information. I took off the vacuum pipe that actuates
    the EGR valve and noticed something rather shiny in the pipe, so i took
    my small screwdriver to it and managed to push out a ball bearing. I
    guess that this was used as a kind of 'blanking plate' as described

    Well i removed it and now my car is not indicating a 'MIL fault' every
    time it gets up to running temperature! :)

    Thanks for all your advice

    robbo, Sep 11, 2010
  7. robbo


    Jul 3, 2012
    Likes Received:
    i am faint...so long
    DDT, Jul 10, 2012
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