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Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by hubbo1, Jul 12, 2012.
does anyone know if there is a link for cleaning the turbo on b7 2.0 tdi?
I would appreciate this as well, looking to do this to mine
found this,it shouldnt be to different-gonna have a play at the weekend
Where abouts are you pal ? Are you going to use the Mr muscle stuff ?
If you YouTube "Innotec turbo clean", it tells you exactly how to clean the turbo. Looking at it, you could use any cleaning solvent, safely to do the same thing, for a lot less than the Â£40 the kit costs.
yes i am going to use mr muscle-and i live in great yarmouth
Pictures by hubbo36 - Photobucket
think i have done this picture thing right!?
just cleaned turbo with mr muscle-wow! cant believe it is the same car! no limp mode,more responsive!
Hi Mate. Is there any chance you could write up some instructions ? There some instructions knocking about for a B6 but i haven't seen any for a B7 yet. I am looking at doing mine asap but i am a little bit apprehensive incase i make a mess of something !
ok oddie here goes
remove the air intake-held in by 2 philips screws on the slam panel,this will come out in 2 parts-they are push fit.
then remove jubilee clip from large rubber pipe on the air box itself.
then remove the sensor plug from the maf on the air box and unclip the wire attached to the airbox.
the air box needs to come out next,its held in by a plastic insert through a rubber grommet into the inner wing,when this is removed just give it a tug upwards-it is only sat in 2 rubber seats underneath.
now you should have clear access to the turbo outlet/exhaust, 3x12mm nuts to remove-i got 2 with a ratchet and socket and 1 with a ring spanner plenty of wd 40!, then you should be able to seperate the turbo/exhaust-bit of pulling and the use of a large screwdriver for levering(dont put anything in the turbo!).
once this is done you can tape up the open end of the turbo,poke a small hole in it and squirt some mr muscle in,leave for an hour and repeat-refitting is the reverse.
im sure there will be some other tips and comments but this is how i did mine and it worked.
Fantastic mate, thank you very much ! I have actually been out there this morning about 30 minutes ago and have got everything removed. I have sprayed the 3 bolts with WD40 so i am just trying to give it as much time as possible to work its magic, don't fancy snapping any bolts off !
Did you notice a difference straight away in yours, and has it gone into limp mode since you did it ?
i drove it as soon as i had it back together-let it get up to temp before i gave it some wellie,no limp mode as yet,and it feels so much more responsive.
Good work ! I hope it sorts mine out. Have you cleaned your EGR valve out ? I keep meaning to do mine but haven't got round to doing it yet, i imagine it is going to be horrible after 104,000 miles !
yes i have done the egr-dont think it made much difference though,mines on 119000 and tbh wasnt as bad as i thought it was gonna be,i think alot depends on driving ie short journeys and fuel quality.
why dont you do it today while youre under the bonnett?
How difficult was that to do ? Easier or more difficult than that turbo ?
it was no worse than doing the turbo-there is a step by step guide on here as well
Ok. thanks for taking the time to get back to me mate, much appreciated.
more than welcome
If its not a new fuel filter for a while, it's worth changing that. No point having lots of air but not enough fuel flow. They get quite clogged.
So.... it worked !! I sprayed the cleaner into the turbo and left it for about an hour to dwell and then took it for a blast. It felt awful at first, almost like i was trying to rev through treacle, maybe this was the cleaner or all the carbon hanging around in there ? As soon as i got up the road it felt miles better. Once it had warmed up i gave it a really good thrashing and it drove really well, no limp mode !
Hubbo, how much of the cleaner did you put in ? I wasnt able to get loads in because it just foamed up straight away. And how did you remove that nut on the right hand side nearest the engine ? That was a right ******* to do, took me ages !
nice one! carry on like this and we wont need the dealers or indy garages at all, lol!
used very little cleaner,like you say it does foam up.
yes that nut was a little tricky,i used a short ring spanner.
glad it worked for ya! been out and about today and fingers crossed no limp mode.
I had to use a hammer and a long bar in conjunction with the ring spanner on that tricky nut, it was a nightmare ! I think i am going to apply some more in about a months time or so. I am addicted to Mr Muscle now haha.
How do you remove the air box fully ? I managed to separate that rubber grommit that goes into the wing but still couldn't remove the box. Once you separate the grommit and pull the long bit out of the middle of it what do you do then ?
Was there any particular driving situation that made your cars go into limp mode and did you get any error codes retrieved ? I'm only asking as mine did this about 2 weeks ago and I'm wondering whether to clean the turbo and egr. With me I was in cruise control doing about 80 when it had to accelerate to go up a hill. Error code said it was an underboost ??
Hi pal. Mine was doing it on the motorway in 4th or 5th. I had to drive it fairly hard to get it to go into limp mode but it always did it around 3k RPM. I never got any warning lights but i had it serviced yesterday and the mechanic said he scanned it and it had an over boost fault code. I may be wrong but i think under boost is normally caused by something else ? Sorry i can't help you much mate
once you have removed top and bottom hose and removed the maf plug and wiring from the air box you should just be able to wiggle/pull the air box out,no need to rmove filter.
yep mine had overboost code as well,no warning lights