Poor Diesel ?

[Jmac]

Here is a pic of another EGR ive pulled from a Golf 5, Been serviced from day 1 with low ash oil and used BP diesel most of the time. Engine has only done 80k, the condition of this i expected it to have done 300 odd. Can only put it down to crap diesel. Car does lots of highway stuff too so cant blame round town and prolonged idle. What do you reckon? im keen to hear the feedback, personally i think its pretty poor and cant put it down to design as VW have been at the forefront of green diesel since i started back in 88. Be great to hear what you think. Days are gone for reasonable quotes these days, im findiing im quoting telephone number quotes these days.
Have a look


Cheers
Jmac

[mikinoz]

Jimmy how much of this crap could come through oil contmination via crankcase ventilation?

[whiteVR6]

Speak to Seb about this
Every week he will get at least 1 intake manifold removal and clean on a tdi/fsi/tfsi engine. Its now become a maintenance item!

[Jmac]

Speak to Seb about this
Every week he will get at least 1 intake manifold removal and clean on a tdi/fsi/tfsi engine. Its now become a maintenance item!

Im keen to hear what he has to say, ive done the same, inlet removals and clean outs, subaru foam getting a fair work out of late. Id be keen to hear what the brothers in the Uk are seeing, i still have contacts at my workplace over there, its still a Vw dealer, gonna have a chat see what he reckons, the diesel is way better there so be keen to hear. 80k cmon!!
Mick, yep ventilation can conribute for sure, keen to say what the Uk say about that too. Ill update as i hear, meantime keen to hear other experences and feedback here

cheers guys
Jmac

[mikinoz]

Sell them a ProVent and an egr delete as insurance.

[Transporter]

Dirty air filter? Sludge build up in rocker cover affecting PCV?

[gldgti]

this is not a new issue, every tdi since EGR was invented has been doing this all by itself. Theres also been heaps of discussion on here about it in the past.

The best solution is to try and remove as much oil vapour from the crank case vent gasses as possible - as mikinoz suggested - a pro-vent is a good solution. Then the exhaust soot cant form the sludge with the oil.

It really doenst matter what the fuel quality is like - all diesels (and it seems now the direct injection petrols) make a lot of soot during hard acceleration) and this is the result.

I was behind a golf R the other day going on to the hume at cambelltown, and WOW was there a lot of soot when the driver floored it once out of the corner (they were obviously a little annoyed my skoda was gaining in the corner .

The amount of soot i saw from that R is more than I see from a regular TDI doing the same thing.

[benough]

Mine was about half that at 110,000kms. Never had a provent.

[Greg Roles]

Looks quite globular whereas most I see is an even layer. But yes, very typical, although they do seem to vary a fair bit between cars as Benough suggests above, but yes, get them onto a Provent!

[Jmac]

this is not a new issue, every tdi since EGR was invented has been doing this all by itself. Theres also been heaps of discussion on here about it in the past.

The best solution is to try and remove as much oil vapour from the crank case vent gasses as possible - as mikinoz suggested - a pro-vent is a good solution. Then the exhaust soot cant form the sludge with the oil.

It really doenst matter what the fuel quality is like - all diesels (and it seems now the direct injection petrols) make a lot of soot during hard acceleration) and this is the result.

I was behind a golf R the other day going on to the hume at cambelltown, and WOW was there a lot of soot when the driver floored it once out of the corner (they were obviously a little annoyed my skoda was gaining in the corner .

The amount of soot i saw from that R is more than I see from a regular TDI doing the same thing.

All good feedback and not sure if you know my background, ive been with VW/Audi since late 1987 and seen most Umwelt, PD, Common rail in these and dont remember them being as bad as this with such low ks, unless i was lucky or unlucky not to have to diagnose any, which i find hard to beleive when the Uk is way more populated with Dubs and thats where i did my training. My bad for not reading or doing a search on the subject on here. Being at the coal face i saw this and instead of what most dealer techs do and just fit a new one i was looking for a solution to a "well known" problem and thought i would post up a pic. That all said i do really appreciate all the feedback cheers guys.
I did " Fix" a V6 Touareg last week with an EGR valve stuck and what would normally be replaced, the guy couldnt wait for the back ordered part, so went through the pain of removing it, not a 2 minute job on a Treg, and used Subaru cleaner for ages on it and it unstuck, luckily the Elec side of the valve seemed to cope with trying to work against the coal and manged to keep it alive. All good.
I personally still think the diesel over here is crud as is the Petrol whether it contibutes or not, im sure it does but thats "my " opinion. But anyway as i say i really appreciate the feedback

Cheers again
Jmac

[Transporter]

OK, you're right diesel here is not as good as it should be and it was terrible before 1/2006 then it started to improve. It is possible that some fuel stations have really bad quality diesel (not maintaining their storage tanks), which would contribute to the sludging you saw. All my customers are offered Moreys Diesel Smoke Killer, during service and all of them get 1L bottle, which usually gets them through to the next service, some buy more when they run out, many of them started to use BP after I explained them why. Moreys Diesel Smoke killer is recommended for the DPF and I closely monitor our Touareg and 2 Tiguans DPF loading and I'm amazed.

[gldgti]

All good feedback and not sure if you know my background, ive been with VW/Audi since late 1987 and seen most Umwelt, PD, Common rail in these and dont remember them being as bad as this with such low ks, unless i was lucky or unlucky not to have to diagnose any, which i find hard to beleive when the Uk is way more populated with Dubs and thats where i did my training. My bad for not reading or doing a search on the subject on here. Being at the coal face i saw this and instead of what most dealer techs do and just fit a new one i was looking for a solution to a "well known" problem and thought i would post up a pic. That all said i do really appreciate all the feedback cheers guys.
I did " Fix" a V6 Touareg last week with an EGR valve stuck and what would normally be replaced, the guy couldnt wait for the back ordered part, so went through the pain of removing it, not a 2 minute job on a Treg, and used Subaru cleaner for ages on it and it unstuck, luckily the Elec side of the valve seemed to cope with trying to work against the coal and manged to keep it alive. All good.
I personally still think the diesel over here is crud as is the Petrol whether it contibutes or not, im sure it does but thats "my " opinion. But anyway as i say i really appreciate the feedback

Cheers again
Jmac

No disrespect intended jmac - i know you know your stuff but sometimes people can do a lot of work and still never manage to come across something anyway

I've cleaned out one that was worse than your picture, can't say how many km it had on it though.

In the end it will come down to a lot of different factors - fuel, oil, driving style, trip distance etc. If I had to put money one one of those being the most important, I'd say driving style. Some drivers like to putt around and labour the engine at low revs - makes lots of soot and as you know also causes a lot of blowby past the rings causing extra vent gasses.

Sorry if my reply came across as a bit terse - like I say no disrespect intended at all, we're all friends here.

[Jmac]

No disrespect intended jmac - i know you know your stuff but sometimes people can do a lot of work and still never manage to come across something anyway

I've cleaned out one that was worse than your picture, can't say how many km it had on it though.

In the end it will come down to a lot of different factors - fuel, oil, driving style, trip distance etc. If I had to put money one one of those being the most important, I'd say driving style. Some drivers like to putt around and labour the engine at low revs - makes lots of soot and as you know also causes a lot of blowby past the rings causing extra vent gasses.

Sorry if my reply came across as a bit terse - like I say no disrespect intended at all, we're all friends here.

Na mate absolutely no offence taken at all, all good my friend, my response might have came across that way too oops, sorry if it did, been having a torrent of work pressure mate so no probs at all. I totally agree with your points, im hpoing to get as much feedback as i can and have already thanks guys

Cheers
Jmac

[GoLfMan]

I did mine at 100,000kms and it wasn't all that bad, BUT I had, had the intake cleaned not too long before, and ALSO turned down the EGR values to basically none on VAG-COM. (good article about it on tdi club)

Surely it wouldnt be just bad quality diesel, itd have to be the design of the engine? Sooty exhaust fumes mixing with oil vapour to create that tar like substance?

[Buller_Scott]

ALSO turned down the EGR values to basically none on VAG-COM. (good article about it on tdi club)

do you reckon that turning it down would via vag com would be a necessary pre-requisite for installing the race pipe?

i guess im asking in the context of limp mode due to no EGR detected/ other operation niggles... as we've discussed at tim's place before, we can always just texta over the illuminated check engine light