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likely sticky turbo vanes, or boost leak. have a look back through the TDI section of this forums, you will find loads of information about this as its dead common.
It's almost impossible to understand what you're saying.
Let's try breaking it down into phrases and see if that helps
110bhp turbo trouble 1.9 tdi
So this is a TDI 110 motor, ASV or AHF? and what year? It can help to narrow down problems areas.
there a problem on these engines
There's nothing like getting the audience on your side. And that is nothing like getting the audience on your side . . .
Turbo boosts too much
Do you have a boost gauge? If not how can you tell? Engine management light coming on at all?
cpu puts it in safe mode
I assume from this you are having problems with the car dropping into limp mode, but I have to guess. It would help us a lot more if you'd describe what you are doing just before it goes into limp mode, i.e. what is triggering the limp mode.
u loose loads of power
That's what limp mode does.
You can spell "loose" but not "you"?
when u restart it it resets its fine.
Yes, that sounds like limp mode, as far as I can make out.
£400 for new turbo. any ideas anyone
Lots, but I'll try to confine myself to useful ones.
It would help if we knew more about your car, what year it is, how many miles it's done, what modifications it has and what has been done to it recently (servicing and mods).
Like Sssstew says, sticking turbo vanes is one problem that produces the symptoms you seem to be describing. This is caused by soot build-up on the exhaust turbine section, which has moveable vanes to control the turbine speed, spin it up at low revs and keep it from overspeeding at higher revs. If they stick at the low-rev position the turbo overboosts and triggers limp mode. Remedy is to clean the soot off.
1) Try getting the turbo hot to see if it will burn out the soot. Difficult if you're already getting limp mode. Need to load the turbo without revving the engine too much. A long steep hill, motorway or dual carriageway, is the best place to do this - start off at a low speed and keep in a high gear all the way up, going as fast as you can (paying due respect to safety and legality) without triggering limp mode. If you see sparks flying out of the exhaust this is a sign that the carbon is being burned off and spat out - several posters here have reported this in the past
2) There are some chemical treatments that you can squirt into the inlet trunk that claim to clean the soot off. Others on here have reported using them with some success.
3) You can take the turbo off, disassemble it and clean it yourself. Not too difficult in the spanner department - remember to cap the oil feed. Some helpful pictures here
http://www.technologie-entwicklung.de/Gasturbines/VNT15-Turbo/vnt15-turbo.html
Soot build up is accelerated by lots of low speed driving, slow commuting, shopping trips etc. The turbo never gets hot enough to burn off the soot so it builds up.
Higher miileage engines sometimes have trouble with sticking EGR valves, which cause similar symptoms. Check and clean the EGR, replace it or block it off.
Text-speak, lack of puncutation and grammar all make it harder to work out your meaning, as well as indicating your disrespect for the people trying to read it.
You're saying "I can't be bothered to spell things out, put in dots and commas or put my words in any sort of order. Do it yourself". So why should I bother to answer you?
Let's try breaking it down into phrases and see if that helps
110bhp turbo trouble 1.9 tdi
So this is a TDI 110 motor, ASV or AHF? and what year? It can help to narrow down problems areas.
there a problem on these engines
There's nothing like getting the audience on your side. And that is nothing like getting the audience on your side . . .
Turbo boosts too much
Do you have a boost gauge? If not how can you tell? Engine management light coming on at all?
cpu puts it in safe mode
I assume from this you are having problems with the car dropping into limp mode, but I have to guess. It would help us a lot more if you'd describe what you are doing just before it goes into limp mode, i.e. what is triggering the limp mode.
u loose loads of power
That's what limp mode does.
You can spell "loose" but not "you"?
when u restart it it resets its fine.
Yes, that sounds like limp mode, as far as I can make out.
£400 for new turbo. any ideas anyone
Lots, but I'll try to confine myself to useful ones.
It would help if we knew more about your car, what year it is, how many miles it's done, what modifications it has and what has been done to it recently (servicing and mods).
Like Sssstew says, sticking turbo vanes is one problem that produces the symptoms you seem to be describing. This is caused by soot build-up on the exhaust turbine section, which has moveable vanes to control the turbine speed, spin it up at low revs and keep it from overspeeding at higher revs. If they stick at the low-rev position the turbo overboosts and triggers limp mode. Remedy is to clean the soot off.
1) Try getting the turbo hot to see if it will burn out the soot. Difficult if you're already getting limp mode. Need to load the turbo without revving the engine too much. A long steep hill, motorway or dual carriageway, is the best place to do this - start off at a low speed and keep in a high gear all the way up, going as fast as you can (paying due respect to safety and legality) without triggering limp mode. If you see sparks flying out of the exhaust this is a sign that the carbon is being burned off and spat out - several posters here have reported this in the past
2) There are some chemical treatments that you can squirt into the inlet trunk that claim to clean the soot off. Others on here have reported using them with some success.
3) You can take the turbo off, disassemble it and clean it yourself. Not too difficult in the spanner department - remember to cap the oil feed. Some helpful pictures here
http://www.technologie-entwicklung.de/Gasturbines/VNT15-Turbo/vnt15-turbo.html
Soot build up is accelerated by lots of low speed driving, slow commuting, shopping trips etc. The turbo never gets hot enough to burn off the soot so it builds up.
Higher miileage engines sometimes have trouble with sticking EGR valves, which cause similar symptoms. Check and clean the EGR, replace it or block it off.
Text-speak, lack of puncutation and grammar all make it harder to work out your meaning, as well as indicating your disrespect for the people trying to read it.
You're saying "I can't be bothered to spell things out, put in dots and commas or put my words in any sort of order. Do it yourself". So why should I bother to answer you?
Last edited:
gurnstar
Guest
turbo
its a 2002 Toledo 1.9 tdi 110 SE. it happens when im driving up hills accelerating usually. its been serviced by dealership had new cam belt 2 years ago its done 80000. since Ive add the car its been serviced once a year when service flashers. the other day i rang its neck down motorway changing gear just before red. since then its assent lost power but it is over performing according to owners manual i got 130mph only supposed to do 120mph and up to 60mph is quicker than 10 seconds theirs no mods to engine. the only mod is 18' alloys. its doing 43 mpg all in i live in Sheffield lot of hills.
is that any better http://www.seatcupra.net/forums/images/smilies/cartman.gif
its a 2002 Toledo 1.9 tdi 110 SE. it happens when im driving up hills accelerating usually. its been serviced by dealership had new cam belt 2 years ago its done 80000. since Ive add the car its been serviced once a year when service flashers. the other day i rang its neck down motorway changing gear just before red. since then its assent lost power but it is over performing according to owners manual i got 130mph only supposed to do 120mph and up to 60mph is quicker than 10 seconds theirs no mods to engine. the only mod is 18' alloys. its doing 43 mpg all in i live in Sheffield lot of hills.
is that any better http://www.seatcupra.net/forums/images/smilies/cartman.gif
Last edited by a moderator:
gurnstar wrote
its a 2002 Toledo 1.9 tdi 110 SE.
Just one year younger than mine, same engine and trim. Do you know if it's an ASV engine (code should be on the build sheet under the carpet in the boot, or on the inside cover of the service booklet)
it happens when im driving up hills accelerating usually.
So under heavy load, calling for power from the engine, and a part of the performance envelope where the EGR valve will be active.
its been serviced by dealership had new cam belt 2 years ago its done 80000. since Ive add the car its been serviced once a year when service flashers.
80,000 isn't a lot for one of these engines.
the other day i rang its neck down motorway changing gear just before red. since then its assent lost power
I'm guessing that you mean it hasn't gone into limp mode, the way you described in your first post. That's sort of a promising sign, indicates that sticky turbo vanes are the number one suspect.
but it is over performing according to owners manual i got 130mph only supposed to do 120mph and up to 60mph is quicker than 10 seconds
Well, that's an indicated 130, which may be optimistic - speedo's are allowed to overread (but must not underread at all, by law). I hear that you can use a GPS to get a speed reading, if you have one or know someone with one. On a private track of course.
theirs no mods to engine. the only mod is 18' alloys. its doing 43 mpg all in i live in Sheffield lot of hills.
Do you know the previous owners (for instance, mine was previously a SEAT company car so I know it hasn't been modded from standard and has had good servicing in their hands).
80,000 is about the mileage that the EGR valve started to play up on my previous car, a TDI 90 Ibiza. It would go into limp mode at about 70, usually as I was trying to overtake on the motorway. Embarassing and not very safe. That engine hasn't got moving vanes int he turbo, so the diagnosis was easier.
EGR bypass is easy on the TDI 110 cars, you just disconnect the electrical connector to the N18 valve on the firewall.
That was easier to read and make sense of, thanks. One thing you could do to make your messages more readable, and that's break up the blocks of text into paragraphs of one or two sentences. The remaining spelling and grammar omissions are easier to make sense of in smaller bites.
its a 2002 Toledo 1.9 tdi 110 SE.
Just one year younger than mine, same engine and trim. Do you know if it's an ASV engine (code should be on the build sheet under the carpet in the boot, or on the inside cover of the service booklet)
it happens when im driving up hills accelerating usually.
So under heavy load, calling for power from the engine, and a part of the performance envelope where the EGR valve will be active.
its been serviced by dealership had new cam belt 2 years ago its done 80000. since Ive add the car its been serviced once a year when service flashers.
80,000 isn't a lot for one of these engines.
the other day i rang its neck down motorway changing gear just before red. since then its assent lost power
I'm guessing that you mean it hasn't gone into limp mode, the way you described in your first post. That's sort of a promising sign, indicates that sticky turbo vanes are the number one suspect.
but it is over performing according to owners manual i got 130mph only supposed to do 120mph and up to 60mph is quicker than 10 seconds
Well, that's an indicated 130, which may be optimistic - speedo's are allowed to overread (but must not underread at all, by law). I hear that you can use a GPS to get a speed reading, if you have one or know someone with one. On a private track of course.
theirs no mods to engine. the only mod is 18' alloys. its doing 43 mpg all in i live in Sheffield lot of hills.
Do you know the previous owners (for instance, mine was previously a SEAT company car so I know it hasn't been modded from standard and has had good servicing in their hands).
80,000 is about the mileage that the EGR valve started to play up on my previous car, a TDI 90 Ibiza. It would go into limp mode at about 70, usually as I was trying to overtake on the motorway. Embarassing and not very safe. That engine hasn't got moving vanes int he turbo, so the diagnosis was easier.
EGR bypass is easy on the TDI 110 cars, you just disconnect the electrical connector to the N18 valve on the firewall.
That was easier to read and make sense of, thanks. One thing you could do to make your messages more readable, and that's break up the blocks of text into paragraphs of one or two sentences. The remaining spelling and grammar omissions are easier to make sense of in smaller bites.
gurnstar
Guest
turbo
yeah its asv. i don't know the previous owner got it from car craft (don't laugh please).
also runs a lot better on bp ultimate or v power. cheers i appreciate it
yeah its asv. i don't know the previous owner got it from car craft (don't laugh please).
also runs a lot better on bp ultimate or v power. cheers i appreciate it
nib27
Guest
could any body help me i have a seat leon 1.8 20 v turbo cupra 52 reg 2003 and its done 107000 miles when its cold its fine but wen it gets hot it looses turbo boost but when u turn the egnition off then back on while driving it sorts it out for a short time the engine warniong light is on and the traction control light comes on also now ne ideas nebody
Could be a number of things, best to check with vag-com if possible for fault codes.
First suspect would be the MAF I believe.
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