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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
 

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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.
 

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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.
 

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Discussion Starter #4
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
 

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Discussion Starter #5
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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Discussion Starter #10
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.
 

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Discussion Starter #12
lol yah i saw that in the classifieds
seemed to good to be true.
i'll check out TDI wiki tho
thanks
 

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Discussion Starter #14
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.
 

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There are some copies around but this is a very touchy subject on here...
I'm new here could you please explain? Are we not allowed to talk about the White OBD one that rhymes with "Heaven" or is the last part of the famous convenience store that starts with "Seven"
 

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I'm new here could you please explain? Are we not allowed to talk about the White OBD one that rhymes with "Heaven" or is the last part of the famous convenience store that starts with "Seven"
What do you mean White OBD, the colour of the connector?
 
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