Supercharger Asleep?

[Fanaki]

hi guys,

i have a GT TSI and it seems as though my supercharger is sleeping.

i've had a bit of a search through the forum to see if i'm the only one with this problem and i came across a thread about getting the ECU remapped but i just wanted to confirm if my superchargers symptoms are the same as other TSI'ers.

the car is only 2wks old now and although i have been enjoying it immensly however i have been a lil disappointed with the "up & go" factor of my car. basically, from standstill, if i launch the car and rev it out to about 5k rpm in 1st gear i don't notice any supercharger boost kicking in. the boost gauge is completely flat zero, i shift to second (because i drive a manual hehe) and the boost gauge then has a bit of a flutter.

yesterday as i was driving along, i took off from the traffic lights and whooosh! the car took off like a bolt! the boost gauge max'd out and i was left weeing my pants with excitement

i'm wondering if i'm the only one experiencing intermitten supercharger boost? i will be taking the car into the stealer sometime this week but wanted to get a feel for how others are finding their TSI's.

thanks,
Francis

[BarneyBoy]

Hi Fanaki and welcome!

What you're describing is NOT normal. You should have boost straight off idle, all the time. And you shouldn't even feel any drop off as the turbo cuts in. It should be one seamless stream of boost. If yours seems slow until about 2500 - 3000 rpm, I'd say for sure that your 'charger is off.

I had a software fault throw mine into limp-home mode the first day I drove mine home, so I know what it feels like to have turbo only boost. It's not fun at all.

The 'wee in your pants' feeling should happen all the time, not just intermittently. Take it to your stealer ASAP. Ensure that 24M3 Service Campaign was done on your car during pre-delivery (it should have). See: http://www.golfmkv.com/forums/showth...ght=TSI+recall for more details on 24M3.

Post what happens - nobody likes to see an unhappy TSI driver

[Greg Roles]

Yeah I've read of other cars doing this, and on seeing the dealer it got sorted.
I'm have a feeling the dealers will know of the problem, even if they are reluctant to say it to you personally.

[Fanaki]

Thanks for the info and the welcome guys.

i'll def be going to the stealer. i thought up until yesterday that that's how the car was but when the charger kick'd in and the car took off i was then certain that there wasn't something right.

i'll be letting you all know the outcome in coming days.

Francis

[gareth_oau]

The 'wee in your pants' feeling should happen all the time, not just intermittently.

and in the meantime, get yrself some good nappies, you don't want to stain those seats!!

[Fanaki]

that's why i got leather

it's all good... got the leather seats

[BarneyBoy]

it's all good... got the leather seats

Good lord - why did you get the sunroof then?

Back on topic, however - I wonder why the stealer didn't pick up this fault when test driving it during pre-delivery? It sounds like you've had this issue since day 1?

[tinto]

Is it a constant issue?
Mine was intermittent pain.
Would go something like: nothing/nothing/nothing/TURBO

After the update Barney mentioned it hasn't missed a beat.

[Fanaki]

Back on topic, however - I wonder why the stealer didn't pick up this fault when test driving it during pre-delivery? It sounds like you've had this issue since day 1?

yeah it has been since day one. i didn't even realise until yesterday

Is it a constant issue?
Mine was intermittent pain.
Would go something like: nothing/nothing/nothing/TURBO

After the update Barney mentioned it hasn't missed a beat.

yep. it's been absolutely no supercharger in 1st gear and then yesterday BOOM! the supercharger works in mid range take off so it seems a bit strange that it doesn't kickin on take off??

but i'm glad that you have had a positive result with the update Tinto. hopefully that's all it is...

[Fanaki]

it was me that's asleep

i went to the stealer just before lunch ( got lost in the process ) but long story short, i haven't been pushing the right hand pedal down hard enough

the service tech was nice enough to listen to my stupid ramblings and we went for a drive and low and behold BOOOOST. we went back to the garage and he checked the system to see if my broom had the 24m3 (i think that was it) upgrade applied and it was thumbs up because i drive an MY09.

well needless to say i left the stealer feeling like goose... got the lil one on the road and instead of pedalling it to 2500-3000rpm, booted it off the mark and BOOOOOST

thanks for all your help guys. let's wait and see what i come up with next.


Francis

[tinto]

user error!
glad to hear it has all been sorted.

[benough]

So you have to engage the supercharger with accelerator? Like click it on with the accelerator to the floor?

Sounds like a messerschmidt!

[BarneyBoy]

So you have to engage the supercharger with accelerator? Like click it on with the accelerator to the floor?

The supercharger should be operating with anything EXCEPT the lightest throttle - you shouldn't have to nail it. 1/4 or 1/5 throttle should deliver boost off idle.

And the revs shouldn't matter - I rarely see >3000 rpm 'round town, but I can assure you the blower is working! Jeez Fanaki, you must be VERY light with your right foot!

tinto: "user error!" LOL!
"I've found your problem - it's between the seat and the steering wheel..."!

[Fanaki]

not too heavy not too light

i'm not particularly light on the right foot. if anything quite the opposite.

but if i don't completely flatten the boot the charger doesn't kick in. i'll do a few test runs and see exactly under what circumstances it does/ doesn't kick in.

the tech that took the car for a spin was nailing it and kept saying, seems fine to me... i didn't think i had to drive it like i was on a drag strip everytime to get the charger working???

from memory if i plant the foot fast off the mark the charger chimes in (ie the first inch of travel on the pedal) but if i ease the first inch and punch it the rest of the way the charger stays off?

seriously, am i doing something wrong?

[Greg Roles]

Well the TSI I took for two extended test drives had that grunty all over feeling all the time, regardless of accelerator as Barney has alluded to. There was no obvious lag like in a typical turbo car. To me it felt like my Mum's Accord Euro, a bigger 2.4 L engine.

I think there is definately something still wrong, there is no point in VW releasing a twin charge car that feels like a single charge ( typical turbo ). The WHOLE point of the supercharger is to fill the turbo lag gap.