Got my car back from Skoda last week after new clutch and after about 5 mins away from the dealership begin to hear a loud "wooshing" noise under load from about 2000rpm sounded to me like a possible boost pipe leak? taken off and checked out all pipes i can get to from the engine bay and running to the intercooler but cannot see anything out the ordinary. The car seems a bit low on power and definitely down on MPG and more smoke than usual out the exhaust. ive heard the turbo normally makes a siren noise when its on its way out?

just wondering on peoples thoughts on the problem? was going to take it back to Skoda for them to have a look over, seeing as it wasn't like that when i gave it them and they said they will have a look.

Cheers Josh

Have you checked the bottom intercooler pipe. take the under tray off and have a look. mine has poped off twice now and was the bottom hose each time

Just had the under tray off and check all the pipes from intercooler to the turbo and theres only one that seems loose but is still attached, not sure whether this would be enough to cause this noise that im getting :S thanks for your help mate have to take it to Skoda see what they say.

Would love to find out what this is as I am getting exactly the same problem... :(

Im having a mate look at it tomorrow but it would be nice to get a heads up.

Got my car back from Skoda last week after new clutch and after about 5 mins away from the dealership begin to hear a loud "wooshing" noise under load from about 2000rpm sounded to me like a possible boost pipe leak? taken off and checked out all pipes i can get to from the engine bay and running to the intercooler but cannot see anything out the ordinary. The car seems a bit low on power and definitely down on MPG and more smoke than usual out the exhaust. ive heard the turbo normally makes a siren noise when its on its way out?

just wondering on peoples thoughts on the problem? was going to take it back to Skoda for them to have a look over, seeing as it wasn't like that when i gave it them and they said they will have a look.

Cheers Josh

wooshing noise?? like a plastic bag rustling??

i had this 10 minutes after buying my fabia and it was the return pipe from the turbo to the intercooler, same noise possibly??

Just had the under tray off and check all the pipes from intercooler to the turbo and theres only one that seems loose but is still attached, not sure whether this would be enough to cause this noise that im getting :S thanks for your help mate have to take it to Skoda see what they say.

Only needs them to slightly loose and you'll get a boost leak. It could be one of the lugs has worn down or broken off, so its only been held in by one lug by the clip.

Well just taken the car on a long drive and its fixed itself, maybe me taking all the pipes off and re-attatching them cured it somehow? forgot to mention my EGR valve was slightly loose where it attaches to the boost pipe with the bolts, so i also tightened that. but there is no noise now at all and its pulling stronger than ever, still smokey but what can you expect with a remap hey

just so you know the noise wasn't like a rustling bag, was just like a loud sucking noise, my bet was the pipe going into the turbo inlet so i think il just get myself a new one and hopefully wont have the problem again.

thanks for the help guys!

Also just a question trebormint with your zenons, do you know how to adjust the beam so it stretches out longer? having the car lowered has shortened it dramatically :(

Would love to find out what this is as I am getting exactly the same problem... :(

Ditto. I don't want to hijack the thread here, but I can't decide if my car has a problem or not tbh, not really heard any other Fabia vRS from inside so it's hard to say if my turbo is nosier than the norm - it whistles and sucks a bit with increases and decreases in rpm but I coudln't say if it was excessive :S But my mpg has been disappointing, trip computer reporting about 43-44 mpg over the last few months, it's not as if though I sit in traffic all day and I also run the car on Miller's Eco Max. Car was serviced a few months ago by Skoda too (FDSH on the dot). Even over last summer/autumn it only averaged 46.5 mpg on the computer and from what I read on here that is on the low side; somewhere between about 365 and 395 mi before fuel warning comes on.

How could/would I check for a leak in the intercooler and turbo pipework? Bear in mind I am a total novice and not well equipped (I have a trolley jack, that's about it) and I'm not very confident taking bits off or apart :| . I was concerned enough to get someone to run VCDS over the car in June last year but only fault code found was "18009 - Relay for Supply Voltage Terminal 30 (J317): Implausible Signal" - but I'm guessing minor boost leaks don't turn up on VCDS. I was thinking MAF could cause poor mpg but I'm guessing this flags up on VCDS and EML?

In short, I'm none too keen on spending hundreds in diagnostics for a fault that I might be imagining or is easily fixed, but I am planning to get a remap from Shark soon so I want the car to be in proper order. Any advice?

Just for a bit of prespective on the mpg stuff:

My commute to work is about 5.5 miles at a steady 30-40 mph and I probably only come to a stop 4 times during the entire trip (junctions and traffic lights). This returns me about 51 mpg indicated if I drive very smoothly and sit in 5th at just over 30 mph and it's warm out too. And I do regularly check the tyres for 2.5 bar, make sure air con is off, don't rev above 2k etc. I can't think of much else it could be aside from a boost leak, although I've not looked at the air filter closely I've no reason to believe it is old or unduly dirty. I have found that any use of revs, such as pulling out sharply will hit the average mpg for any journey quite a bit.

Edited 15 March, 201214 yr by ckyliu

Ditto. I don't want to hijack the thread here, but I can't decide if my car has a problem or not tbh, not really heard any other Fabia vRS from inside so it's hard to say if my turbo is nosier than the norm - it whistles and sucks a bit with increases and decreases in rpm but I coudln't say if it was excessive :S But my mpg has been disappointing, trip computer reporting about 43-44 mpg over the last few months, it's not as if though I sit in traffic all day and I also run the car on Miller's Eco Max. Car was serviced a few months ago by Skoda too (FDSH on the dot). Even over last summer/autumn it only averaged 46.5 mpg on the computer and from what I read on here that is on the low side; somewhere between about 365 and 395 mi before fuel warning comes on.

How could/would I check for a leak in the intercooler and turbo pipework? Bear in mind I am a total novice and not well equipped (I have a trolley jack, that's about it) and I'm not very confident taking bits off or apart :| . I was concerned enough to get someone to run VCDS over the car in June last year but only fault code found was "18009 - Relay for Supply Voltage Terminal 30 (J317): Implausible Signal" - but I'm guessing minor boost leaks don't turn up on VCDS. I was thinking MAF could cause poor mpg but I'm guessing this flags up on VCDS and EML?

In short, I'm none too keen on spending hundreds in diagnostics for a fault that I might be imagining or is easily fixed, but I am planning to get a remap from Shark soon so I want the car to be in proper order. Any advice?

Just for a bit of prespective on the mpg stuff:

My commute to work is about 5.5 miles at a steady 30-40 mph and I probably only come to a stop 4 times during the entire trip (junctions and traffic lights). This returns me about 51 mpg indicated if I drive very smoothly and sit in 5th at just over 30 mph and it's warm out too. And I do regularly check the tyres for 2.5 bar, make sure air con is off, don't rev above 2k etc. I can't think of much else it could be aside from a boost leak, although I've not looked at the air filter closely I've no reason to believe it is old or unduly dirty. I have found that any use of revs, such as pulling out sharply will hit the average mpg for any journey quite a bit.

Does it smoke badly at all?

Just check all boost pipes are secure, air filter is clean, and no leaks in the inlet side of things. I found a split in the flexible pipe from MAF to alloy inlet pipe - letting in air. Not sure how many miles you have done, but your EGR valve/Inlet manifold could be coked up with crap from a mix of breather fumes and exhaust gas.

Just coming up to 50,000 mi now. Puts out a sizeable one-off puff of smoke at start up, even when running Miller's Eco Max. Will put out a small puff bit when I floor it too, especially if there's no Miller's in.

Can I inspect all these pipes without taking bits out the engine, because the turbo seems to be buried deep down near the firewall? I can remove the black top cover, but that's about all I trust myself to do! I think I know which pipe you're on about, the large diameter black plastic thing from the airbox to the metal pipe behind the air filler cap?

Edited 15 March, 201214 yr by ckyliu

Just coming up to 50,000 mi now. Puts out a sizeable one-off puff of smoke at start up, even when running Miller's Eco Max. Will put out a small puff bit when I floor it too, especially if there's no Miller's in.

Can I inspect all these pipes without taking bits out the engine, because the turbo seems to be buried deep down near the firewall? I can remove the black top cover, but that's about it. I think I know which pipe you're on about, the large diameter black plastic thing from the airbox to the metal pipe behind the air filler cap?

Boost pipes are the thick plastic pipes running down the left hand side of the engine from the EGR to the intercooler down in the wheel arch, they they go back up on the underside of the car into the intake.

They sound like a real pain in the arse to inspect comprehensively - thx for the photo btw. Obviously gonna have to take the engine cover off, but sounds like I'll have to get underneath the car to check the connections around the intercooler in the wheel arch and intake? Perhaps I could pop some soappy water on the joints and then start it up and see if I can spot any bubbles (or is this a BAD idea)?

Edited 15 March, 201214 yr by ckyliu

ive just had to buy a new boost pipe, as the plastic engine cover had been resting on it and had carved into it and pushed it off underneath causing oil to spray everywhere

Okay, so I had the bonnet up today and the engine cowling off. Found this pipe connection (circled red) was wobbly, I think this is the cause of my problem? I did briefly consider bodging it with some silver tape, then I worked out this was A BAD IDEA. Looks like the rubber on the end of the pipe does the actual sealing, so now guessing I need a new pipe, anyone know the part number and rough idea of a fair price?

Did also find a thin film of gunk in the pipe. Not had a chance to check the pipes to the intercooler, no idea how you even gain access but I assume you have to jack the car up and take the bumper off.

Edited 18 March, 201214 yr by ckyliu

My turbo gone 3 times now and every time it sounded like the car is supercharged

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Not had a chance to check the pipes to the intercooler, no idea how you even gain access but I assume you have to jack the car up and take the bumper off.

No need to take bumper off, just the undertray.

Okay, so I had the bonnet up today and the engine cowling off. Found this pipe connection (circled red) was wobbly, I think this is the cause of my problem? I did briefly consider bodging it with some silver tape, then I worked out this was A BAD IDEA. Looks like the rubber on the end of the pipe does the actual sealing, so now guessing I need a new pipe, anyone know the part number and rough idea of a fair price?

There are two lugs on a metal collar and the clip holds these in place, stopping the pipe from coming out. If the lugs are broken or worn down, then the pipe comes loose or even pop out if both lugs gone.

Definitely a boost pipe issue, since I had a poke around whistling has got louder and so mpg has dropped more. I had a trolley jack but no axle stands so getting under tray off to check the SMIC pipe could be a bit tricky (suppose I could use the car's own scissor jack, might be safer.. I just hope it is the connection to the EGR, and not the one to the intercooler.

If the lugs on that metal bit are worn, how can I fix that, will it need a whole new part (this sounds costly)? Please note I have absolutely no idea what the hell I am doing under the bonnet of a car! Think I shall have to have the engine cowl off again tomorrow and see what i can see.

Edited 18 March, 201214 yr by ckyliu

I brought the 90 just before the intercooler and that was 120 inc vat from tps

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Starting to wonder if the whistling is just in my head and my mpg problem is the MAF or something :S Suppose I should go and leave with a garage before I break something but anyway...

I've read on here that pipe connections are apparently suppose to have a little play in them (like the red one in the photo), is this true? I don't really know how to spot a boost leak, does anyone have any tips to help me find them other than obvious tears and holes? I have a day off tomorrow and I've borrowed some axle stands, so I'm going to have a proper look and see if I can deduce anything other than the fact I am cack with mechanicals!

I brought the 90 just before the intercooler and that was 120 inc vat from tps

£120 for a bit of plastic tubing!?

Edited 18 March, 201214 yr by ckyliu

They have a rubber seal which should prevent leaks.

It might be worth checking these are ok. I have the lower intercooler one for sale along with the turbo outlet hose.

Starting to wonder if the whistling is just in my head and my mpg problem is the MAF or something Suppose I should go and leave with a garage before I break something but anyway...

I've read on here that pipe connections are apparently suppose to have a little play in them (like the red one in the photo), is this true? I don't really know how to spot a boost leak, does anyone have any tips to help me find them other than obvious tears and holes? I have a day off tomorrow and I've borrowed some axle stands, so I'm going to have a proper look and see if I can deduce anything other than the fact I am cack with mechanicals!

£120 for a bit of plastic tubing!?

Yeah nearly died when they said but I was desperate so at pay it

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Firstly, the good news! Today I got underneath the car and spotted this peeping out through a hole from what I'm fairly sure is the bottom of the SMIC. The connector has a film of oil on the outside (visible in the photo) so I think this is the source of my boost problem (anyone like to confirm?), not the top connector as previously believed. So it'll be going to a garage soon to get looked at properly.

Now, the bad news! Being the spanner that I am, I've dropped the nut securing the engine cover in to the engine bay and I can't find the damn thing, even with a telescopic magnet. Can't get the undertray off because one of the torx is seized and I've no axle stands so I can't go under the car and have a proper got at it. Do I risk damage driving around with that nut loose in the bay?

Edited 19 March, 201214 yr by ckyliu

Erm, what nut on the engine cover?

It should just pull off without unscrewing anything.