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  1. #161
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    Quote Originally Posted by Grainreaper View Post
    I used a wrench, a socket and ratchet might be a pain, but a wrench went right on no problem at all
    Great, thank's! Got the O2 yesterday will change it this week And maybe try to attack the engine mount on saturday or sunday!

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  2. #162
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    O2 sensor changed, man it's thight down there, scraped up a bit... Car feels back to where i was... still just throwing around 12-15 psi of boost in 1 and 2. 10-12 on 3rd gear. So engine mount is next in line...

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  3. #163
    Established Member Two Rings Grainreaper's Avatar
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    I think my hands are about 70% scar tissue lol

  4. #164
    Established Member Two Rings
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    Quote Originally Posted by Grainreaper View Post
    I think my hands are about 70% scar tissue lol
    Hahaha. I can relate to that now

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  5. #165
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    Got help with another pressure test this weekend. Sprayed everywhere. Lifted the car up. NO sound of air leaking underneath the car (around wastegate) and the only leak we could locate was the one i told about (see pic) on y-pipe intake, down to turbos. And as you guys explained earlier, this shouldn't really interfere like this!

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  6. #166
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    Quote Originally Posted by Herr G View Post
    Got help with another pressure test this weekend. Sprayed everywhere. Lifted the car up. NO sound of air leaking underneath the car (around wastegate) and the only leak we could locate was the one i told about (see pic) on y-pipe intake, down to turbos. And as you guys explained earlier, this shouldn't really interfere like this!

    Sent fra min SM-G950F via Tapatalk
    Tried to change clamp today, will se how it turns out tomorrow

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  7. #167
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    Changed muffler tip today, was hoping for a better fit. Maybe try cirkular next time. Think it's to much space above the muffler.

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  8. #168
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    Guess i found at least 1 problem to faulty parking sensors. Hoping to test wires tomorrow

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  9. #169
    Established Member Two Rings Alex JB's Avatar
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    Leicestershire, UK

    What size are those oval tips?
    I like the look of those.

    My standard tips are in a pretty bad way so gave them a lick of paint but really want to cut them off and put some new on


    Sent from my iPhone using Tapatalk

  10. #170
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    Quote Originally Posted by Alex JB View Post
    What size are those oval tips?
    I like the look of those.

    My standard tips are in a pretty bad way so gave them a lick of paint but really want to cut them off and put some new on


    Sent from my iPhone using Tapatalk
    Liked them too, but i think they came out a bit low...

    This is what i purchased:
    https://www.ebay.com/itm/Universal-C....c100040.m2060

  11. #171
    Established Member Two Rings Alex JB's Avatar
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    2004 A6 2.7T with boost issues

    Found something very similar here
    These say 50 x 90 oval, is that similar to yours?



    Did you have time cu off the 70mm vanity tip and use the clamp bolt in n the new tip to attack to the base pipe that comes out of the exhaust box?


    Sent from my iPhone using Tapatalk

  12. #172
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    Quote Originally Posted by Alex JB View Post
    Found something very similar here
    These say 50 x 90 oval, is that similar to yours?



    Did you have time cu off the 70mm vanity tip and use the clamp bolt in n the new tip to attack to the base pipe that comes out of the exhaust box?


    Sent from my iPhone using Tapatalk
    Original tip is welded to the pipe that comes out of the box. It only left 2-3cm of pipe left to bolt on with new clamps. Circular 100mm i think would be better but i haven't found any that is short enough...

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  13. #173
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    Quote Originally Posted by Herr G View Post
    Original tip is welded to the pipe that comes out of the box. It only left 2-3cm of pipe left to bolt on with new clamps. Circular 100mm i think would be better but i haven't found any that is short enough...

    Sent fra min SM-G950F via Tapatalk
    Diameter of the pipe out of the box could not have been any bigger... barely got it fitted...

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  14. #174
    Established Member Two Rings Alex JB's Avatar
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    Thanks, looked like the standard 57-60mm On these universal ends was tight.
    I may even get them on and tack weld them in place rather than the band clamp that comes with.


    Sent from my iPhone using Tapatalk

  15. #175
    Senior Member Three Rings
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    My Garage
    05 allroad FBP 6mt, 06 VW Passat Komfort, 08 VW Touareg V8 FSI
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    Looks great Herr!! Maybe a bit of trimming on the bumper cover would help?

    Here's what I did... Finished product

  16. #176
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    Quote Originally Posted by n8henn View Post
    Looks great Herr!! Maybe a bit of trimming on the bumper cover would help?

    Here's what I did... Finished product
    Your car and exhaust looks great. But on my exhaust they're pretty low because of my stock rear resonator. Trimming would not help in this case, because i want the exhaust lifted so the gap to the rear bumper get's smaller. Guess i could trim the sides so it's equal space around the muffler tip tho!

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  17. #177
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    Quote Originally Posted by Herr G View Post
    Tried to change clamp today, will se how it turns out tomorrow

    Sent fra min SM-G950F via Tapatalk
    Today's run (only did 2) resulted in somewhere around 15-16psi in 1gear then dropped a tad to 14-15psi in 2 & 3gear... not really sure what to make out of it. Wish there was a expert i could hand my car to and immedately would say what's wrongNo codes after O2 change! Will do another pressure test this weekend to check the new clamp... it psychologically feels a bit better after each time i do something with the car

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  18. #178
    Established Member Two Rings Alex JB's Avatar
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    Quote Originally Posted by n8henn View Post
    Looks great Herr!! Maybe a bit of trimming on the bumper cover would help?

    Here's what I did... Finished product
    Looks great


    Sent from my iPhone using Tapatalk

  19. #179
    Established Member Two Rings Alex JB's Avatar
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    Quote Originally Posted by Herr G View Post
    Today's run (only did 2) resulted in somewhere around 15-16psi in 1gear then dropped a tad to 14-15psi in 2 & 3gear... not really sure what to make out of it. Wish there was a expert i could hand my car to and immedately would say what's wrongNo codes after O2 change! Will do another pressure test this weekend to check the new clamp... it psychologically feels a bit better after each time i do something with the car

    Sent fra min SM-G950F via Tapatalk
    Are you using a vacuum boost gauge (analogue or digital?) to read the boost?
    Or is the pressure monitored somewhere on board that can be read in Vagcom?



    Sent from my iPhone using Tapatalk

  20. #180
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    Quote Originally Posted by Alex JB View Post
    Are you using a vacuum boost gauge (analogue or digital?) to read the boost?
    Or is the pressure monitored somewhere on board that can be read in Vagcom?



    Sent from my iPhone using Tapatalk
    Chinese boost/vaccume gauge. And torque app via phone... Wouldn't trust my life with either of them Haha. But they measures approx the same...

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  21. #181
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    Quote Originally Posted by Herr G View Post
    Chinese boost/vaccume gauge. And torque app via phone... Wouldn't trust my life with either of them Haha. But they measures approx the same...

    Sent fra min SM-G950F via Tapatalk
    https://m.ebay.com/itm/Universal-52m....c100408.m2460

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  22. #182
    Established Member Two Rings Alex JB's Avatar
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    I thought the standard boost level was around 10psi?
    Mapping at stage 1 ish was about 14-16.
    That was just tinterweb info though


    Sent from my iPhone using Tapatalk

  23. #183
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    Quote Originally Posted by Alex JB View Post
    I thought the standard boost level was around 10psi?
    Mapping at stage 1 ish was about 14-16.
    That was just tinterweb info though


    Sent from my iPhone using Tapatalk
    I`ve been told that the stock pressure is between 7-9psi and that my flash would be 18-20psi with spike at 22psi.
    But i`m not 100% sure of this!

    If mapping stage 1 ( that`s what i`ve got) isn`t supposed to be more than 14-16 i guess i have nothing to complain about
    However i feel the boost isn`t consistent tho. It`s kinda like sometimes it`s fine and other time it runs like crap... All troubleshooting leading towards vaccume leak.

    Thomas

  24. #184
    Established Member Two Rings Alex JB's Avatar
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    Having only recently come to the C5 2.7T I am no expert, but this is my 5th VAG car and the C5 seems the be the most touchy when it comes to driving style.
    What I mean is it seems to have a goldfish length ECU memory, if you drive like grandma it remembers that and next time you put your foot down... blah, slow pick up. However when you have been spirited driving for 10 mins it re-thinks and then you hit traffic and it seems twitchy and raring to launch!
    My C7 smoothed the learning out a lot more, so did the A4 B8 and they were cars with diesel instant torque so perhaps needed to be more conservative with the learning.



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  25. #185
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    Quote Originally Posted by Alex JB View Post
    Having only recently come to the C5 2.7T I am no expert, but this is my 5th VAG car and the C5 seems the be the most touchy when it comes to driving style.
    What I mean is it seems to have a goldfish length ECU memory, if you drive like grandma it remembers that and next time you put your foot down... blah, slow pick up. However when you have been spirited driving for 10 mins it re-thinks and then you hit traffic and it seems twitchy and raring to launch!
    My C7 smoothed the learning out a lot more, so did the A4 B8 and they were cars with diesel instant torque so perhaps needed to be more conservative with the learning.



    Sent from my iPhone using Tapatalk
    I need to drive harder, that`s what you`re saying Hahahaha. Well, if that is the case you`re problably right. because my normal driving is cruisecontrol at 55Mph, or between 80-90kmh
    Note to self: Heavier foot recommended

  26. #186
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    Although the ECU does adapt driving style, the only thing that really should happen is that lag on throttle would occur. it shouldn`t lower the psi on WOT, would it?
    Think i have to turn to certified mechanics for further troubbleshooting.

    Does anyone know the correct psi for a flash (stage 1) Guess it would be within a certain range even tho it varies from dealer to dealer. I was told it should be 18-20 psi and spike at 22.
    Stock engine should be 7-9psi.

  27. #187
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    Fuel filter change...

    How often do you guys change fuel filter? On every "main" service like 60K km?
    Also, could it be related to my issue? I know i got a lot of "what if" questions but i`m just trying to understand the engine as good as possible. I could of course not be explaining as correct as i should, according to how the feel of the drive is.
    The higher the gear and rpm the problem (sluggish drive) becomes more present. Could it just be that the car isn`t getting enough fuel? if that is the case, how would you be able to check this? Vagcom reading during drive? pressure test fuel lines?

    Considering I`m no mechanic at all, i`m now leaning towards getting a garage to take a closer look. However, i really want them to have a checklist to follow and should i make sure they have a dyno? The last one just took a drive down the street and back, didn`t seem thorough enough. But who am i to judge

    Spring closing in on me now, and it would be great to have the car ready in "racing condition" when tire change is approaching
    Have a few non mechanical things to do also this year. Couple smaller paint jobs, rims, and parking sensors.. Maybe even check out suspension options. Got the "periodic roadworthiness test" (EU-control) coming up soon. Hoping for a clear pass

    Looking forward to your response.

    Thomas
    Last edited by Herr G; 03-26-2018 at 10:33 PM.

  28. #188
    Established Member Two Rings Grainreaper's Avatar
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    I replace my fuel filter yearly, thats about 8k miles give or take

  29. #189
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    Quote Originally Posted by Grainreaper View Post
    I replace my fuel filter yearly, thats about 8k miles give or take
    Changing filter asap then What is your experience with filters not being changed? Mine has at least runned 40K km since last change. Maybe it's original in worst case. Looks pretty straight forward changing them

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  30. #190
    Senior Member Two Rings Calif_Kid's Avatar
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    2001 A6 6 spd, 2000 Honda Civic hatch racecar
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    Sunnyvale, Calif
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    When I replaced the fuel filter on my 2001 A6 2.7T, I searched and followed most of the info in http://www.audizine.com/forum/showth...er+replacement. The initial posting mentions to pull a fuse but the second post says that isn't necessary. The new filter should come with new crush washers. The fuel filter is pretty easy to get to. As far as how often to replace it, I'd take a look at the official maint guide to see how often it is recommended to be changed. - Jim

  31. #191
    Established Member Two Rings Grainreaper's Avatar
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    Iím in the Chicago area, things rust up quick so all my hardware is stainless whenever I remove a bolt it gets stainless where possible and where strength allows👍

  32. #192
    Established Member Two Rings Grainreaper's Avatar
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    Also being a mechanic allows a good bit more underbelly time than most others.
    I change all the gearlube every spring and fall as well. Coolant is every fall when I do the fuel filter, also a full synthetic oil change with filter every 3 months, so about 2k mile intervals. I do brake fluid flush every spring as well. Cabin filter is each spring, I clean the air filter and sparingly oil it every time it gets dirty, so far thatís been the fall, I have the air box modded so I get a lot of airflow and also dirt 😎

  33. #193
    Established Member Two Rings Grainreaper's Avatar
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    This is massively excessive, but I donít pay for fluids so itís as easy as pulling it on the rack and getting it drained/flushed etc. and Iíve never once have I found that clean new fluids are bad for a car.

  34. #194
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    Quote Originally Posted by Grainreaper View Post
    This is massively excessive, but I donít pay for fluids so itís as easy as pulling it on the rack and getting it drained/flushed etc. and Iíve never once have I found that clean new fluids are bad for a car.
    Holy motherf#$% That's one hell of a maintenance ritual... I was thinking every 20K km was fine. Oil, filters. Not even crossed my mind that brake fluid is something to change. Guess we're on each side of the maintenance scale🤣

    However, does the "hesitation/sluggish drive" relate to a bad fuel filter?

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  35. #195
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    Quote Originally Posted by Calif_Kid View Post
    When I replaced the fuel filter on my 2001 A6 2.7T, I searched and followed most of the info in http://www.audizine.com/forum/showth...er+replacement. The initial posting mentions to pull a fuse but the second post says that isn't necessary. The new filter should come with new crush washers. The fuel filter is pretty easy to get to. As far as how often to replace it, I'd take a look at the official maint guide to see how often it is recommended to be changed. - Jim
    Thank you for that! New filter and crush washer's ordered! Getting it done next week. Was 50$ for it.

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  36. #196
    Senior Member Two Rings Calif_Kid's Avatar
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    2001 A6 6 spd, 2000 Honda Civic hatch racecar
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    Quote Originally Posted by Herr G View Post
    Thank you for that! New filter and crush washer's ordered! Getting it done next week. Was 50$ for it.

    Sent fra min SM-G950F via Tapatalk
    You're welcome... On the B5 S4, I've read that you have to lower the right side of the gas tank slightly and push a 2"x4" above the side of the tank when changing the fuel filter, but replacing it on my A6 didn't require that and was really easy. Just be careful/safe when you're changing it... - Jim

  37. #197
    Established Member Two Rings
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    Quote Originally Posted by Calif_Kid View Post
    You're welcome... On the B5 S4, I've read that you have to lower the right side of the gas tank slightly and push a 2"x4" above the side of the tank when changing the fuel filter, but replacing it on my A6 didn't require that and was really easy. Just be careful/safe when you're changing it... - Jim
    Yeah, i've seen that video on youtube when the two mounting brackets, holding the tank has to be removed/loosened. Hoping for a easy fix. But i don't have a lift, only these mobile "ramps" to drive up on. Hope i get enough space.

    Sent fra min SM-G950F via Tapatalk
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

  38. #198
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    Quick update

    Hi

    Ordered service at the dealer for my next try to locate the boost issue. Got a hold of pre owned map-sensor just to check if it could be that as well but still no difference.
    wastegate opening pressure will be checked next week as well as further troubleshooting. Wastegate should open at 7 psi right?!

    Thomas
    Mine: A6 2.7 TTQ, 2004 Stage 1, 300hk.

    Wife: E-Golf 2015, 85kW

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