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Thread: Talk about mayo on the filler cap!!

  
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    Question Talk about mayo on the filler cap!!

    Over the past few weeks i've slowly been going through the filter changes on the g/f's Polo. Today was time for the oil & oil filter change as i knew it badly needed it. All that is left is the fuel filter change now.

    Anywho, drained out the oil & what not. I'd read of mayo on the cap before, but had never actually seen it, so wondered what it looked like etc, wondered if i'd be able to spot it - if it was obvious or not kind of thing.

    Took the filler cap off & there was no mistaking. The base of the cap was totally engulfed in a light brown/creamy sludge & then inside was loads of gunk also.
    I wiped off the filler cap as best i could & wiped inside as best i could also. There was still some sludge left, but nothing compared to what it was.


    G/f decided to tell me the car had been running a bit rough for a while (she likes to hold these nuggets of info back until something goes totally wrong or i spot something not right) but said she put it down to the cold weather. Possibly didn't help as mine's been sounding a bit rough in the colder mornings also.


    Anywho, what would you guys reckon up the likely cause of this is?

    I guess key info would be that the last time the car had an oil & filter change would've been hmmm ............ June/July 2008. She does short (5-6mile) journeys into town to get to work. Probably covers about 6000 miles a year, if that. Usually between 5-6k.

    Is the likliest possibility just old oil in bad need of a change or what? Should i have really stuck some engine flush/cleaner in there?

    As it is, i just change the oil & filter & that's that.

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    kev i would check out a vag forum and see if its on a thread,low miles and cold weather aint going to help it though.
    if i wanted to be right all the time i would change my title to mrs ledster

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    Quote Originally Posted by ledster View Post
    kev i would check out a vag forum and see if its on a thread,low miles and cold weather aint going to help it though.
    I mentioned here for a few reasons really....

    1. I'm a member of a couple VAG forums, one being a specific Polo forum.

    .... i'll be "nice" and simply say they're not the most helpful bunch .... which ties in well with the experience i had at the VW dealership.

    2. I assumed it'd be a standard problem/answer for any car with these symptoms & not Polo specific (as in, if my Astra had the same thing, then the possible cause would be the same).


    Think the car has covered about 100-108k all told.


    & i know this thread is useless without pics my phone battery was dead. There was a lot of crud though (probably not in you guys' opinion, but it was a lot to me)

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    only reason i said go to vag forum was incase the polo with your engine has a too large sump which is something i have read about on this site about the mk4 as this can cause the mayo prob and is a design fault really.
    if i wanted to be right all the time i would change my title to mrs ledster

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    Umm, pass on that one buddy.

    I know her car is totally standard. Tiz a 1998 1.4L. APQ engine i believe.


    I've taken the cap off in the past & there's not been this build up. Haven't taken it off for a long while though so no idea how long it's been there for.



    As an aside to all of this - i find the dipstick on this car bloody difficult to read!! Found it real hard to tell where the oil came up to. Much more difficult than my Astra, and the previous Escorts & Citroens i've had, which have all been a doddle.

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    Last time i saw this was on my 2001 corsa c and my head gasket had gone which let water into the oil and made sludge!

    I left mine for months on end because head gaskets are not cheap to replace.

    Just something to think about, pretty easy to text for.
    Black 1.7CDTI SXI -www.younge.co.uk -

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    Check to see if the coolant level has dropped as well as check to see if you are getting moisture from the exhaust when your car is sat on idle.. If this is the case I would suspect the Head Gasket Kev... This is what I would hanker towards....
    Star Silver SRI Turbo..'Red.Dot Reloaded'..Cybox Precat, Cybox Catback SS Exhaust..K&N Panel Filtered...9Ltr EDS SMIC!!.....

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    Short journeys can cause the mayo too, more frequent oil changes or take it for a good run occasionally.

    If head gasket she should have noticed the temp gauge being higher (or maybe not )

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    When my head gasket went i just noticed my water levels dropping every few days or so. What made me suspect something was wrong. My temp controls never changed at all.

    I only noticed little white sludge but not enough for me to worry.

    If you think it could be head gasket please take it and get several opinions. My family macanic said it was although the warranty guys said it wasn't and the third final opinion was a local garage which tested for c02 or something in the engine? don't hold me to it. but they did some sort of test lol.
    Black 1.7CDTI SXI -www.younge.co.uk -

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    I had the head gasket go on my Citroen ZX. It was P'ing water all over the place & the temp needle shot through the roof.

    I've been in her car & the temp needle gets up to 90 as normal and stays there as normal.

    As i say, she only uses it for 5-6 mile journeys & that's about it. It's very rare she'll do any longer runs than that. We go to Scotland now and then, but i'll be damned if i'm driving that up the motorway again!! It was bloody uncomfortable last time i took it lol.

    The coolant level at first (she bought in 2006) used to not really move. It HAD been emptying (IMO) quite quickly. When i say emptying, i mean going to the min marker or even below, but still registering SOMETHING.

    I filled it up again a few weeks before Xmas & it's not moved any yet.




    Should i take it to the local family mechanic for some sort of testing? What sort of testing would he do for this? Like a pressure test or something?

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