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Thread: Mann Hummel Provent 200 filter replacement, cleaning and after market options

  1. #1
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    Mann Hummel Provent 200 filter replacement, cleaning and after market options

    In April 2017 I installed the Mann Hummel Provent 200 on my D2a TD5. Itís therefore probably been on for around 35,000km of driving. The last few weeks itís leaking oil residue on the outter casing:



    Reading the Installation and Maintenance Manual < https://oe-products.mann-hummel.com/...ProVent_en.pdf >, on page 21 at 5.4 Troubleshooting:



    Iíve check the unit including valves and seals and all seems fine. The other suggestion is the maintenance which is just replacing the oil filter element according to page 13 5 Maintenance:



    From what Iíve read online the filters are indicated to last between 20,000 to 40,000km (which Iím getting towards the upper end of) after which the clogging can cause increased pressure which causes the integrated pressure relief valve in the lid to open up and release the excess pressure which can cause the oil on the external of the unit.
    Curious how long others have gotten out of there filters?

    New genuine Mann Hummel filters look to be around $80.00. Alternatively there are aftermarket knocks offs and a stainless steel mesh screen type.

    Thereís some discussion online about cleaning and reusing them. Anyone had any success doing so? On some other online forums some have mentioned doing this using degreased and/or petrol, and stretching the filter out to 100,000km.
    Mine - modified MY03 LT L318 Discovery 2a HSE Td5 15P
    Hers - MY12 L319 Discovery 4 2.7L TDV6
    Dads - MY98 LJ Discovery ES 3.9L V8

  2. #2
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    Iíve been trialing a stainless mesh replacement in the lads D2 with decent results.

    Whilst Iím sure it isnít as effective as the genuine units itís doing a great job. Happy with what Iím seeing (not seeing) in the manifold.
    Cheers
    Tombie

    Gone - D1 AZZKIKR - 5.0L Supercharged with the lot
    Gone - Tombraider Defender - Lara
    Gone - D2 TD5

    D4 MY11
    - Just about the way I want it.
    D90 MY15 - Just about the way Mrs Tombie wants it.
    Cancelled the new order...

    And for those fun times:
    2007 Suzuki M109R Boulevard Limited - 1800cc of V-twin goodness
    2020 Suzuki Katana - 1000cc of pure mayhem - Just Send It

  3. #3
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    Quote Originally Posted by Tombie View Post
    Iíve been trialing a stainless mesh replacement in the lads D2 with decent results.

    Whilst Iím sure it isnít as effective as the genuine units itís doing a great job. Happy with what Iím seeing (not seeing) in the manifold.
    Glad to hear that. One theyíre more price friendly as like only 20% of the cost of the genuine replacement filters and two I like the idea of washing and reusing rather than sending it off to land fill...

    Even at not quiet as effective itís still then likely much better than no ProVent fitted.
    Mine - modified MY03 LT L318 Discovery 2a HSE Td5 15P
    Hers - MY12 L319 Discovery 4 2.7L TDV6
    Dads - MY98 LJ Discovery ES 3.9L V8

  4. #4
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    Ordered, received and attempted to try an eBay Stainless Steel filter. Couldn't close the cap on the unit with it fitted. Pulled it back out to compare with the original and the reasoning is obvious - it's taller by about 6mm which is why it's fouling the lid from closing:

    IMG_2181.jpgIMG_2180.jpg


    Relating to this, of interest to others may be the thread at Provent 200 especially the linked UNSEALED 4X4 Issue 57 e-magazine that has an article comparing the different offerings.


    And Provent Results, and just how much better TD5 oil filters are.

    Quote Originally Posted by isuzurover View Post
    The left-most TD5 datum had not yet reached steady-state oil saturation. However you can basically see that provent elements in Td5s should last a very long time, as there is almost no pressure drop increase over time.
    Thankfully at 35,000km out of the filter I'm getting a longer life than some others are reporting only 12,000km. I still don't understand why the filters have such a very high cost price to them. The PK Ranger that I fitted one to at the same time seems to be still going without issue.
    Mine - modified MY03 LT L318 Discovery 2a HSE Td5 15P
    Hers - MY12 L319 Discovery 4 2.7L TDV6
    Dads - MY98 LJ Discovery ES 3.9L V8

  5. #5
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    I think it's Western Filters in sydney have a knock off of the original at a much cheaper price.

    Being a cheapskate I bought a knock off 100 with stainless filter then bought a knock off fabric filter which fitted the knock off 100 perfectly. I emptied the hose today and about 1/5 cup came out after about 7KK.
    Regards PhilipA
    PS my inlet manifold was dead dry last week when I changed the FPR. The photos should be still there back a few postings.

  6. #6
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    Quote Originally Posted by Tombie View Post
    Iíve been trialing a stainless mesh replacement in the lads D2 with decent results.

    Whilst Iím sure it isnít as effective as the genuine units itís doing a great job. Happy with what Iím seeing (not seeing) in the manifold.
    I have one in mine, but will go back to a standard filter. Ben an engineer over here in the West did quite and exhaustive study on the various filters and in the end the standard filter was the best. I think he tested 4 or 5 filters including the ss mesh. His reasoning and results were quite sound and tested in University conditions. Cant remember whether it was discussed on here, but he actually wrote a paper on it, will see if I can find it, just cant remember if here or AULRO FB or Defender FB page. Post his report we actually had quite an in depth on line conversation about them.
    Cheers
    CraigE
    2000 Defender Extreme: Shrek
    2009 DRZ400E Suzuki
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    Facta Non Verba

  7. #7
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    Yes it was discussed but IMHO he went a bit overboard.

    I recall he tested a 100 Provent and clones to 200CFM which they were never designed for.

    At 100 they were fine but at 200 very restrictive.
    If they were designed for 100 why test to 200?

    His report was valuable in that it tested mesh and paper, and found the paper restrictive but effective and the mesh not very restrictive but much less effective in % of vapour caught.

    Regards PhilipA

  8. #8
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    I agree - I read Bens work - but itís (the mesh) removing more than enough that the intake is remaining clean and dry. As it is an improvement above and beyond the original set up, and itís set and forget - itís staying Mann Hummel Provent 200 filter replacement, cleaning and after market options
    Cheers
    Tombie

    Gone - D1 AZZKIKR - 5.0L Supercharged with the lot
    Gone - Tombraider Defender - Lara
    Gone - D2 TD5

    D4 MY11
    - Just about the way I want it.
    D90 MY15 - Just about the way Mrs Tombie wants it.
    Cancelled the new order...

    And for those fun times:
    2007 Suzuki M109R Boulevard Limited - 1800cc of V-twin goodness
    2020 Suzuki Katana - 1000cc of pure mayhem - Just Send It

  9. #9
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    I fitted a ProVent 200 to a Ford Ranger PK 3L ute at the same time. The utes done almost twice the km as my D2a Td5 and the original filter is still going. Might be a sign of the level of oil blow by in my Td5.
    Mine - modified MY03 LT L318 Discovery 2a HSE Td5 15P
    Hers - MY12 L319 Discovery 4 2.7L TDV6
    Dads - MY98 LJ Discovery ES 3.9L V8

  10. #10
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    Quote Originally Posted by twr7cx View Post
    I fitted a ProVent 200 to a Ford Ranger PK 3L ute at the same time. The utes done almost twice the km as my D2a Td5 and the original filter is still going. Might be a sign of the level of oil blow by in my Td5.
    More a sign of the more effective internal oil separating system.
    Cheers
    Tombie

    Gone - D1 AZZKIKR - 5.0L Supercharged with the lot
    Gone - Tombraider Defender - Lara
    Gone - D2 TD5

    D4 MY11
    - Just about the way I want it.
    D90 MY15 - Just about the way Mrs Tombie wants it.
    Cancelled the new order...

    And for those fun times:
    2007 Suzuki M109R Boulevard Limited - 1800cc of V-twin goodness
    2020 Suzuki Katana - 1000cc of pure mayhem - Just Send It

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