bud-weis

any common problems on these cars??

my mate has a standard 52 plate 130bhp model...and when planting your foot it just 'whooshes' with no increase in performance.

Obviously it must be an air leak somewhere, but i couldn't see anything obvious last night.

any clues??

Graceland

There is a boost pipe directly behind the front bumper above the shit tray is prone to damage and often comes off or splits - especially if you park next to a high kerb and catch the shit tray with it - seen it a few times

James

or the elbow on the inlet.

bud-weis

Does this pipe go to the intercooler??

thanks

bud-weis

again i'll have a looksie.

Stu @ M Developments

iTrader: (12)

This is most likely. Drivers side boost pipes torn its clips off.

bud-weis

thanks Stu...i'll give it a good look over tonight

i'll let you know if you are right

ps 'torn it's clips off' ....does this mean it's gonna need replacing? or just new clips needed??

Stu @ M Developments

iTrader: (12)

New pipe pal.

Wazzzer

my mate just had this on his anni. Might be worth getting it hooked up to VAG COM to see if it was caused by overboosting as its a common fault on the diesels

the clips for the lower drivers side pipe are the only ones not available on their own, you need to get the whole pipe which is around Ł70 + VAT

Lee_R21Turbo

iTrader: (1)

Or sometimes the power steering pulley rubs through the plastic boost pipe to the left of the engine putting a nice hole in it...crap design really!!!



The ring of plastic was what I removed from the pulley that came from the pipe!!

SapphyMike

AFM's fail on the TD's too. this doesnt bring on the Engine warning light.

It wouldnt stop it running, but it would stop it going quickly.

bud-weis

dodgy!!!

i've had a look...i've removed the metal pipe from the intercooler, then i'm going to remove the red pipe that goes ( well it comes from ) the turbo....only thing i have noticed so far is that the little joiner between the metal pipe and the i/cooler wasn't quite 'square' when it was clipped in?? like it wasn't pushed all the way in?.

markk

iTrader: (2)

brake fluid level senders rubbed a hole in the top boost hose - thats my guess !

bud-weis

the black rubber one that joins the pic lee posted above??

markk

iTrader: (2)

yes short hose goes onto that solid plasic pipe then onto the egr valve, if the brake level sender points towards that flexy pipe then it rubs away under full boost and chaffs a hole into the pipe, just fell that back of it, no need to remove it

bud-weis

like this


enough to cause a problem??

bud-weis

okey dokey will do...thankyou

markk

iTrader: (2)

the pics here show, a, a badly fitted solid plastic elbow, hence it rubbed away, and b, the lower intercooler, on the pipe there is an ally sleeve, on that sleeve are tow little 'ears' that when clipped in hold teh pipe behind teh steel clip, vibrations against the ally/steel rubs the ears away allowing the pipe to fall out, looking at yours its not too bad yet, if you release the clip it will allow you to look at teh rubber seal and the 'ears'

bud-weis

i've removed the solid metal pipe and given it a good clean up....and i understand what you are saying about the 'ears'.

i had a few drips of oil when i removed the pipe...but nothing major.

ive refitted the sleeve ( with the red rubber as in the pic above) to the metal pipe and it now sits straight and snug....i'm not convinced this will be the problem though lol.

just gonna have some diner then go attack it some more.

thanks for the advice btw, much appreciated

markk

iTrader: (2)

no worries - ask away - ive done ' alittle' work with these setups.

sunny

iTrader: (1)

I had this problem, cured half of it.

Finally the turbo blew so I replaced it with a replacment item however soon afterwards the car was flat as a fart. I changed the Airflow Meter and the car turned into the rocket again however only in the lower gears (1,2 and 3) when in 4th, 5th and 6th (longer gears) once planted down it hits a boost limit then goes into a limp mode with very slow response again. Once the car has been turned off and then on again it clears. Then I decided to take the car out with the VAG diagnosis equipment connected to it and when it goes into limp mode it indicates that there is a fault with the boost solinoids (which I have JUST replaced) therefore I am assumming that the small diameter vacuum hoses that are connected to the soliniods and the wastegate etc which look like they've seen better days should be replaced....thats my next mission. Hopefully that sorts it. It will be ok in the higher gears so long as you dont open full throttle, in other words if you feather the throttle / boost in its fine this kind of indicates a leak somewhere when boost builds up?

scottp

sticking VNT vanes are the main cause also, my bro cleared his by giving it the beans but you sometimes have to use a VAG com and this can then exercise the vanes.

Scott

bud-weis

that does sound similar.

i haven't found anything wrong with it that's obvious.
all of the pipes have been refitted nice and tight, they were all in very good condition tbh.

i told him to book it in to VW and prepare for some 'pant pulling' action

it does boost a bit...but it doesn't pull like it used to, and it makes a loud whooshing noise.

i'm worried the turbo will blow 'cos he's been ragging it round even when it's been playing up, the turbo i presume will be overspeeding.

andyescos

This is exactly what my 1.9tdi quattro Avante does, VAG diagnostics said AFM, so I changed it, still did it, then I changed the boost solenoid and it still does it. My turbo is always whistling though? Make me think actuator is stuck open, allowing to much boost reulting in ECU switching to limp mode. On the motorway you can't go over 80 as it's under load and over 3000rpm hits the limit again?

Confused. otherwise an awesome car.

markk

iTrader: (2)

thats the VNT ring sticking in the turbo - and it will say on diag 'turbo/supercharger over boost limit exceded'

James

i have heard you can buy a spray from garret that you spray into the turbo and it free's up sticking vnt systems, it sounds too good to be true, but apparently garret have spent a fortune developing it and it does actually work.

sunny

iTrader: (1)

Hi Markk,

although your theory technically sounds spot on it can't be the case as I have had the problem before my turbo blew, then I replaced the turbo and wastegate with brand new items however I am still getting the same thing, also gears 1,2 and 3 are pretty much fine due to the short gearing hence being on boost for lesser periods.

XRdodgybird

Had the same problem with my Anni just before I p/x'd it. The pipe had come adrift at the front, cost me Ł10 to have it fixed.

The turbo's on the 150bhp model (according to many) are prone for problems anyway. Mine used to stick causing a total loss of power at times. I do miss her though....

Wazzzer

sounds like it went into limp home mode with the overboosting

Bobby Singh

I must admit I've never had any turbo problems (PD 150) - but I have had to replace a boost pipe (elbow in front of the brake res). But now my clutch has started to slip - not bad though 40k on a standard clutch with extra power.

The replacement clutch to handle the power is Ł400 (cheapest so far)

Wazzzer

are you staying with the dual mass flywheel or swapping it for the G60 single mass?

The main cure for the sticking vanes and the turbo coking up is to give it a lot of right foot lol

Bobby Singh

Sticking with the DMF as the single is meant to be pretty loud.
If anyone can get discount on SACHS pm pls

Porkie

iTrader: (1)

and me.... I need a new GT2 clutch... I suspect its not going to be a holiday!

bud-weis

try LUK....i found out that they distribute sachs clutches boxed as LUK items..

mine for the M3 EVO is Ł192 all in.

Bobby Singh

Only problem is I need a performance clutch (able to handle 320+ torques) and as far as Im aware only Sachs do them. I can get a normal sachs (oem) for Ł100 but they (as in the supplier) dont do the performance range.

markk

iTrader: (2)

if it wasnt a genuine manufacturer turbo then i stick by my diagnosis.

sunny

iTrader: (1)

Genuine Garrett turbo. Correct version etc + the turbo on it that blew was from factory. Mate works for VW.

markk

iTrader: (2)

and it came from VW parts not a spurious supplied recon ? the you should be ok, if its a recon then my diag stands

sunny

iTrader: (1)

question is that it's fine in the early gears however the problem only occurs in 4th, 5th and 6th?