GolfGTIforum.co.uk
Model specific boards => Golf mk7 => Topic started by: Grahamt on 30 December 2018, 15:16
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Hi all,
New to this forum, have ordered the above.....delivery end March 19, trading in my loyal MK4 Tdi 190,000 miles.....all by me and serviced by me, other than timing belts. The MK4 has been totally reliable and is still on the same clutch but the rust is setting in and it's time to move on.
Ordered with DSG, 7 speed wet clutch model.........anyone know if this is the wet clutch DSG that has added another gear.....I'm hoping it's not made by LUK that make the old 7 speed dry clutch model ( I think that is the maker of the dry clutch DSG that was fitted to lower powered engines)
Anyone been able to get a complete understanding on the PPF fitted to these new one's ....specifically where the filter is mounted and what triggers and controls the regeneration cycle when the passive cycle hasn't been able to clear the filter.
Or even better has anyone been running one for > 4K miles and noticed anything?
Cheers in advance
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Won't be anyone has been running a GTI with particulate filter long enough to have 4000 miles. They only recently passed the new emissions regulations and to deliveries have only started in the past couple of weeks.
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Won't be anyone has been running a GTI with particulate filter long enough to have 4000 miles. They only recently passed the new emissions regulations and to deliveries have only started in the past couple of weeks.
Thanks for that.....Will just have to see if others can shed light on my other questions 🙂
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From what I was told at Progressive Parts, my 2018 Performance which I got in June has the the petrol particulate filter. You can see it in this picture.
(https://i.postimg.cc/gc4XPctF/9131068D-63F3-4297-B95B-3981A0D12953.jpg) (https://postimg.cc/ThLYVxXC)
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I wouldn't have thought anyone will have any issue with a PPF. Don't petrol engines get hotter than diesels?
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From what I was told at Progressive Parts, my 2018 Performance which I got in June has the the petrol particulate filter. You can see it in this picture.
(https://i.postimg.cc/gc4XPctF/9131068D-63F3-4297-B95B-3981A0D12953.jpg) (https://postimg.cc/ThLYVxXC)
Wow that's quite a large unit, I was expecting a small filter like my wife's DPF which is tiny.
Thanks for posting the picture
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I wouldn't have thought anyone will have any issue with a PPF. Don't petrol engines get hotter than diesels?
Yes they do run hotter than diesels and from what I've read on a bmw site then don't add addition fuel to generate a regeneration sequence.
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I wouldn't have thought anyone will have any issue with a PPF. Don't petrol engines get hotter than diesels?
Yes they do run hotter than diesels and from what I've read on a bmw site then don't add addition fuel to generate a regeneration sequence.
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The UP! GTI has been running a GPF from launch (although strangely, 115ps 1.0TSI engined variants of other models didn't - but probably do now since Summer shutdown). My May build Polo GTI+ certainly doesn't have one.
Petrol engines don't run hotter than diesel engines (diesel combusting at 700C under pressure induced autoignition Petrol ignited at about 400C by spark ).
The petrol engine being much less efficient kicks out a lot more heat to the exhaust as less kinetic energy is produced. So the exhaust warms up quicker which is what you need for particulate filter regeneration and burning off those particulates. Petrol particulates are smaller/finer than diesel ones, so are also easier to burn off.
There should be very few people getting GPFs clogging up in use, unless they literally have a 2 mile commute.
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I belive the search for the missing dsg fart endeth here! :whistle:
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From what I was told at Progressive Parts, my 2018 Performance which I got in June has the the petrol particulate filter. You can see it in this picture.
(https://i.postimg.cc/gc4XPctF/9131068D-63F3-4297-B95B-3981A0D12953.jpg) (https://postimg.cc/ThLYVxXC)
Wow that's quite a large unit, I was expecting a small filter like my wife's DPF which is tiny.
Thanks for posting the pictures
I’m assuming the big unit is a silencer and the filter is the smaller unit towards the bottom of the photo?
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I belive the search for the missing dsg fart endeth here! :whistle:
Good shout. And suggests all 7.5’s are running the filter.
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From what I was told at Progressive Parts, my 2018 Performance which I got in June has the the petrol particulate filter. You can see it in this picture.
(https://i.postimg.cc/gc4XPctF/9131068D-63F3-4297-B95B-3981A0D12953.jpg) (https://postimg.cc/ThLYVxXC)
Wow that's quite a large unit, I was expecting a small filter like my wife's DPF which is tiny.
Thanks for posting the picture
I believe the filter is the small cylinder shaped item towards the front.
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From what I was told at Progressive Parts, my 2018 Performance which I got in June has the the petrol particulate filter. You can see it in this picture.
(https://i.postimg.cc/gc4XPctF/9131068D-63F3-4297-B95B-3981A0D12953.jpg) (https://postimg.cc/ThLYVxXC)
Wow that's quite a large unit, I was expecting a small filter like my wife's DPF which is tiny.
Thanks for posting the pictures
I’m assuming the big unit is a silencer and the filter is the smaller unit towards the bottom of the photo?
I'd assume the same - closest unit to the manifold, for quicker heat-up.
Easy way to tell if you have a GPF on your GTI or R - if your exhaust tips soot up then you don't have a GPF. If you're not producing soot then tbe GPF is in place and working - GTDs have clean tips because the DPF is eradicating the soot that would otherwise deposit on the exhaust tips.
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Yes, smaller cylindrical box is the particulate filter. The large resonater is now sat in my garage... :smiley:
(https://i.postimg.cc/Wb3DpRxD/80581925-FC55-4C75-A2C2-10CD91E37293.jpg) (https://postimg.cc/Lhc4vW9R)
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The UP! GTI has been running a GPF from launch (although strangely, 115ps 1.0TSI engined variants of other models didn't - but probably do now since Summer shutdown). My May build Polo GTI+ certainly doesn't have one.
Petrol engines don't run hotter than diesel engines (diesel combusting at 700C under pressure induced autoignition Petrol ignited at about 400C by spark ).
The petrol engine being much less efficient kicks out a lot more heat to the exhaust as less kinetic energy is produced. So the exhaust warms up quicker which is what you need for particulate filter regeneration and burning off those particulates. Petrol particulates are smaller/finer than diesel ones, so are also easier to burn off.
There should be very few people getting GPFs clogging up in use, unless they literally have a 2 mile commute.
Thanks for the clarification re engine running temperatures vs exhaust temp.......learn something new every day😀
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Yes, smaller cylindrical box is the particulate filter. The large resonater is now sat in my garage... :smiley:
(https://i.postimg.cc/Wb3DpRxD/80581925-FC55-4C75-A2C2-10CD91E37293.jpg) (https://postimg.cc/Lhc4vW9R)
Oh wow thanks for correcting me on that one........I thought the big one was the filter (been a long day!) . Good to see the filter is the small one nearer the engine for regenerations.
I take it your GTI sounds very nice now 😀
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Easy way to tell if you have a GPF on your GTI or R - if your exhaust tips soot up then you don't have a GPF. If you're not producing soot then tbe GPF is in place and working - GTDs have clean tips because the DPF is eradicating the soot that would otherwise deposit on the exhaust tips.
Hmm...my May 2018 GTI (non performance model), has always had totally soot free tailpipes (spotless each week, just like my previous GTD’s - except for road tar), but I’m pretty sure mine won’t have a GPF ?
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Easy way to tell if you have a GPF on your GTI or R - if your exhaust tips soot up then you don't have a GPF. If you're not producing soot then tbe GPF is in place and working - GTDs have clean tips because the DPF is eradicating the soot that would otherwise deposit on the exhaust tips.
Hmm...my May 2018 GTI (non performance model), has always had totally soot free tailpipes (spotless each week, just like my previous GTD’s), but I’m pretty sure mine won’t have a GPF ?
Not a Golf GTI, but my 2016 previous generation Polo GTI has also always had soot free tailpipes in the nearly three years I’ve owned it from new, and it definitely doesn’t have s GPF.
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Easy way to tell if you have a GPF on your GTI or R - if your exhaust tips soot up then you don't have a GPF. If you're not producing soot then tbe GPF is in place and working - GTDs have clean tips because the DPF is eradicating the soot that would otherwise deposit on the exhaust tips.
Hmm...my May 2018 GTI (non performance model), has always had totally soot free tailpipes (spotless each week, just like my previous GTD’s), but I’m pretty sure mine won’t have a GPF ?
I’m guessing it might have one. My 2017 7.5 230 model sooted up both tailpipes really badly after a weeks worth of driving, something I noticed my 2018 7.5 Performance doesn’t do.
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My 2015 R's tailpipe are absolutely black. My 2018 Polo GTI+'s are a little sooty. I'm amazed that some people here report their Golf GTI's tailpipe are clean (not dirty.enough between washes to notice, or never washed the tailpipe and they remained clean?
I suppose you have to put your foot down every once in a while to generate that soot, creating a rich cylinder mixture that doesn't fully combust. Maybe sootchucker's penchance for hypermiling doesn't give much scope to generate soot? :wink: or frequent long distance travel gets the exhaust tips hot enough to burn the soot off?
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Mine are disgracefully black and sooty to the point where they no longer clean properly :whistle:
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I always suspected my car might have a GPF. Had it since June and the exhaust tips are still pretty clean and the back doesn't get covered in soot. My previous direct injection turbo petrol car produced a lot of soot and had very black exhausts.
My car is a 7.5 GTi performance built in May 2018.
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Who remembers the good old days of 4 star petrol, when you had light grey 'soot' coating the inside of your tailpipe when it was running right?
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Who remembers the good old days of 4 star petrol, when you had light grey 'soot' coating the inside of your tailpipe when it was running right?
I remember it well :smiley:. And I can also remember paying around 75p a gallon (approx 16.5p a litre) for it too, back in 1977 when I got my first car.
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Who remembers the good old days of 4 star petrol, when you had light grey 'soot' coating the inside of your tailpipe when it was running right?
Yup! Too clean and it's running lean. Cue much fiddling with the carb and some swearing :whistle: :laugh:
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Well I certainly haven’t been hypermilling lately and been giving the car plenty of stick (hence the poor current mpg), but the tailpipes are still clean.
In fact even the insides of the mild steel pipes are pretty much spotless and I’ve never cleaned inside them ;D (excuse the dirt on the pipes - just general road grime)
(https://farm5.staticflickr.com/4810/45818854464_713d395359_h.jpg) (https://flic.kr/p/2cNRB8o)
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Yup! Too clean and it's running lean. Cue much fiddling with the carb and some swearing :whistle: :laugh:
Or a bit of trial and error twisting of the distributor.
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Yup! Too clean and it's running lean. Cue much fiddling with the carb and some swearing :whistle: :laugh:
Or a bit of trial and error twisting of the distributor.
I was a constant fiddler with the timing and points and my old car did run rather well :smiley:
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I have a March 2018 GTI PP (built December 2017) and my exhaust looks like Jim's with the filter. Probably find all 7.5 PP's have it.
My previous 7.5 non PP used to get sooty exhaust in a few days of use.
As previously stated, I guess the reason for no DSG farts on the PP 7.5 has been found.
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As previously stated, I guess the reason for no DSG farts on the PP 7.5 has been found.
Cool least I know what to remove :cool:
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As previously stated, I guess the reason for no DSG farts on the PP 7.5 has been found.
Cool least I know what to remove :cool:
If you did remove the GPF, would that theoretically be an mot failure when the time comes??
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Yes instant failure.
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......and without it there you'll most likely be in limp mode.
The BMW forum guys can't even remove the centre silencer, only the very rear one can be removed without limp mode.
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......and without it there you'll most likely be in limp mode.
The BMW forum guys can't even remove the centre silencer, only the very rear one can be removed without limp mode.
Yup 100% correct
f**king WLTP
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Are you sure that isn't the catalytic converter?
I'd also argue that anything made pre-WLTP doesn't legally have to have a filter fitted, so couldn't fail an MOT. You can't retrospectively apply rules. The Cat obviously has to be there.
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As I understand the MOT rules it's not so much whether the law at the time made the car maker fit them but more 'if the car was manufactured with them ' then the MOT tester will fail it if it has had emissions equipment removed.
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Are you sure that isn't the catalytic converter?
I'd also argue that anything made pre-WLTP doesn't legally have to have a filter fitted, so couldn't fail an MOT. You can't retrospectively apply rules. The Cat obviously has to be there.
Could be a catalytic converter or an integrated system with both ?
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Are you sure that isn't the catalytic converter?
I'd also argue that anything made pre-WLTP doesn't legally have to have a filter fitted, so couldn't fail an MOT. You can't retrospectively apply rules. The Cat obviously has to be there.
I'd agree - no obligation to have a GPF pre-WLTP. People were drilling through their DPF cores for years before they became obligatory (mid 2014 cars and onwards needed to have them operational for the MOT?).
I'm not sure if post-WLTP cars are currently.obligated to have one fully operational or whether VW are getting ahead of the competition.
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Pretty sure it's an instant fail these days if your car should have had a dpf fitted and there's evidence that you tampered with it.
https://www.gov.uk/government/news/new-mot-standards-improving-our-air-quality
Not a case of retrospectively applying the rules (i.e. if your car never had one you won't be asked to fit one) just a case of them being more rigorous in what they will and won't allow.
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Here’s an interesting and possibly worrying thread:
https://www.vwroc.com/forums/topic/30203-golf-r-2019-wltp-looses-mpi-dual-injection/
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beat me to it :sad: :laugh:
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beat me to it :sad: :laugh:
Yours is more visible! :grin:
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you sound like my wife :grin: :tongue: :laugh:
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Isn't the GPF fitted instead of the CAT?
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Isn't the GPF fitted instead of the CAT?
This article suggests it’s close to the turbo so it heats up quickly to be able to function, and is in addition to the Cat;
https://www.motoring.com.au/the-rush-to-develop-petrol-particulate-filters-112545/
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Isn't the GPF fitted instead of the CAT?
This article suggests it’s close to the turbo so it heats up quickly to be able to function, and is in addition to the Cat;
https://www.motoring.com.au/the-rush-to-develop-petrol-particulate-filters-112545/
Yes that was my understanding too, right after exhaust manifold......which goes against the photos earlier in this thread where it's under the car.
I even spoke to the senior (whatever that means as he was so young) technician at vw chester and even he couldn't really answer my questions regarding it's operation.......the replies were very genetic.....pathetic really, not his fault but vw should be providing proper technical information.
The sales people hadn't even heard of one....no surprise there then 😉
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Would suggest that the cat is what was shown in Fred's picture before as the GPF is further up and hidden from view.
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Just got home and noticed the GPF was running as I turned my car off and got out. It’s the first time I’ve heard it kick in. I was sat in stand still traffic just now coming home from the match, took me 1 hour and 10 minutes to move 1 mile, maybe that’s why.
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Sure it wasn't just the fans?
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Does a GTI (pre WLTP) have the raging fan thing? My GTD's did/do but I always thought that was to do with a DPF regen having taken place and was now trying to cool it...
You had a GTD didn't you McMaddy?