fuel filter change

Discussion in 'Mk7 VW Golf, Sportwagen and Audi A3 TDI forums' started by Clutch, Sep 20, 2017.

  1. Clutch

    Clutch New Member

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    hello! new here, first post! please be gentle, new to TDI's, picked up a used 2015 Sportwagen a few months ago, great lil car, quickly approaching 20k, I have a new fuel filter ready to go in, but, a lil worried about priming it afterwords. This thing is not exactly like my '93 F350, lol, do I need this VCDS program I saw on the vids? I am not at all savy with electronics, I am hoping I can just put the new filter in make sure it's filled with diesel crank 'er over a few times, and be good to go, right?
    thanks for reading and advising
     
    Last edited by a moderator: Sep 21, 2017
  2. andykurz

    andykurz New Member

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    You are going to get both answers: use VCDS or not. Ultimately it's up to you and how risky ("lucky"?) you feel. The risk is that you run the HPFP with insufficient fuel and do damage to it. Unlike your 93 F350, this fuel system does not prime completely with KEY ON, thus the complication. The seems to be no concrete data either way but some people will swear to one way or the other.

    I've done 3 fuel filter changes with no VCDS on a 125k (now) car. I add fuel additive to the canister liberally and make sure it is completely full before starting. Mine always starts right away and has no issues so far but yours could certainly blow up on the first try. My circumstances are such that I will be returning the car to VW in <12mo and I am getting a little "fast and loose" with my techniques! Your situation sound different - if you have a 20k car and plan to keep it for a long time, you should consider VCDS anyway if you plan to DIY stuff. I would bite the bullet ASAP and get the fuel filter priming right, but that is just my opinion.
     
  3. mrblah

    mrblah Member

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    My understanding is that the low pressure fuel pump (also known as sender if I'm not mistaken) needs to send fuel to the front (to the HPFP and the rail) first so that these part don't run with empy lines.

    You could simply jump a few relays the old fashion way to get the fuel circulating back to front. Granted I've never done it, but it's a 12V pump (the low pressure one). You give it juice, it'll pump.
     
  4. Clutch

    Clutch New Member

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    ah, interesting thank u, yes stumbled across a contradictory post last night, for the money, ($40.00 or so that I saw), I think it would be good insurance...
    any particular model u'd recommend? I just did a quick search on Amazon ;p
     
  5. Clutch

    Clutch New Member

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    yah the vids said u could jump the relay, I fix electrical problems with hammers, lol, so reckon I'll give this VCDS thing a try.
     
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  6. andykurz

    andykurz New Member

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  7. mrblah

    mrblah Member

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    Better not do that then. Any relation to Jeremy Clarkson? ;)
     
  8. Clutch

    Clutch New Member

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    that Kelly's dad? lol

    omg, n jus checkin out Vag-com....

    muy expensivo!
     
  9. mrblah

    mrblah Member

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    There are some copies around but this is a very touchy subject on here...
     
  10. Clutch

    Clutch New Member

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    phew yeah, I'm in a lil over my head thus far, been drivin' old Ford pickups the last 15 yrs or so, I had no idea!
    so the cheapo Amazon one's do not sound good,
    VCDS® HEX-V2® Enthusiast
    - USB Interface - sounds like what I want... ugh, another $200 but I do keep my cars for awhile, and do most of my own basic maintenance so might be worth it, sorry to be so ocd about this lol.
     
  11. Keithuk

    Keithuk Super Moderator

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  12. Clutch

    Clutch New Member

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    lol yah i saw that in the classifieds
    seemed to good to be true.
    i'll check out TDI wiki tho
    thanks
     
  13. lightflyer1

    lightflyer1 Member

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    You might also try the VCDS owners list to see if there is anyone near you with one to help.
     
  14. Clutch

    Clutch New Member

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    thanks lightflyer
    that is good to kno
    I'll check but i did go ahead n order one already...
    went thru USP motorsport, free shipping lol
    so now what? lol download the software? no other info came with the cord.
     
  15. Clutch

    Clutch New Member

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    ps thought i posted this in the Mk7 section, oh well, my first time ;P
     
  16. Keithuk

    Keithuk Super Moderator

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    Well I've just moved it to Mk7 section. ;)
     

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