Dismiss Notice
Hi Guest, stickers are now available from our online store. We've also updated our terms and conditions so check them out too.

Diverter valve - cupra

Discussion in 'Leon Mk1' started by Cuppyjoe, Oct 18, 2018.

  1. Cuppyjoe

    Cuppyjoe Member

    Joined:
    Sep 15, 2018
    Messages:
    23
    Likes Received:
    7
    Hello all.

    This is sort of related to the current 'hesitation' issue thread in the MK1 section. I have commented on that thread as my 1.8t has a hesitation issue similar to the OP.

    Anyway, part of my investigation into the issue has lead to some advice to replace the Diverter valve (preferably a better one I.e. a Forge)

    Long winded introduction over...

    Who has one?
    Who has a cheaper (than Forge) one?
    And can I just get one of these coz they look ok??
    https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/191941595566
     
  2. mty12345

    mty12345 Senior Member

    Joined:
    Jun 17, 2011
    Messages:
    2,713
    Likes Received:
    8
    If your current valve is faulty, i'd replace it with another oem one! Cheaper than forge and arguably faster to react. The one you linked to is NOT suitable. It's forge or oem really. If you go forge it needs to be fully recirculating.
     
  3. Cuppyjoe

    Cuppyjoe Member

    Joined:
    Sep 15, 2018
    Messages:
    23
    Likes Received:
    7
    Cheers dude, I'll get an OE one I think.
     
  4. Gokiwi64

    Gokiwi64 Geriatric Member

    Joined:
    Apr 26, 2014
    Messages:
    441
    Likes Received:
    48
    I would agree the oem one is a better choice than the piston type - although I guess its down to personal choice, Bill@Badger5 has done a lot of testing and swears by the oem unit. The catch is to get a genuine Bosch unit, there are a lot on ebay that are rip offs or not the "p" or "n" which is what you want. That said many people swear by the piston type , but if you go down that route get a known brand Forge, GFB etc. Our engines cannot use the vent to atmosphere style "dump valve" so you need the diverter style.
     
  5. Alexis27

    Alexis27 Senior Member

    Joined:
    Dec 20, 2009
    Messages:
    1,324
    Likes Received:
    6
    OEM unit works fine. The downside is that they very slightly start to leak after 6 or 7 years, but not so much that you'd notice at first. You just end up driving around with slightly less power without really noticing, just because the rubber diaphragm loosens up - it's just the nature of the material. I prefer the Forge because you know it will never leak.
     
  6. mty12345

    mty12345 Senior Member

    Joined:
    Jun 17, 2011
    Messages:
    2,713
    Likes Received:
    8
    No worries. As someone else mentioned, bill@badger5 says the oem valve is the best option as well, and he probably knows the 1.8T better than anyone.
     

Share This Page