MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: Sammy on May 22, 2012, 11:37:48 pm

Title: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Sammy on May 22, 2012, 11:37:48 pm
Firstly i thought it was down to the pistons or rings but had a compression test done today and all cylinders read the same amount of pressure so this must mean nothing from the engine side?
I am trying to pinpoint the issue here and wondering what other tests can be done to find results, What do the symptoms look like?
yesterday i changed 4 sparkplugs and after a while cylinder 2 started misfiring, got the sparg plug out to find it was gone so changed that plug and now same thing has happened again misfire from the same cylinder any ideas?

Also if you dont want to help dont bother tellng me to go to a VAG specialist because I have, The place am at has a mechanic from the dealer and they are german car specialists, I have excellent service from them for the last 4 years and this is where all the work will take place end of.
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: micky 32 on May 22, 2012, 11:41:48 pm
The turbo could be at fault.
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Russ_leeds on May 22, 2012, 11:45:07 pm
How many threads?
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Hedge on May 22, 2012, 11:46:45 pm
How many threads?

For something that he and his speshulist know best about.

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Ffarm4.staticflickr.com%2F3296%2F2896415444_fa80c61d5c.jpg&hash=1c0226f419ce8e6b1acc44af64fef9954640075d)
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Sammy on May 22, 2012, 11:54:28 pm
Ok thanks Ian Beale
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Sammy on May 23, 2012, 12:03:18 am
The turbo could be at fault.

It may be so but if the turbo was faulty why would excess oil go on to the spark plugs, initially the smoke made me think it was the turbo
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: edd666999 on May 23, 2012, 12:09:25 am
How many threads have you got going  :grin:


Try and keep it all in one place as its getting difficult to follow and therefore difficult to help!
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Sammy on May 23, 2012, 12:14:10 am
No I actually think the other thread had loads of mixed results, where as today after compression test it's starting from a different level as it seems I don't need to strip the engine no more, and better to start fresh
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Andy on May 23, 2012, 12:27:02 am
but won't this thread get mixed reviews :grin:
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Sammy on May 23, 2012, 12:32:16 am
No it won't because like I said its a new problem today duh, only if people decide do then it will which I dnt give a crap about am here to get help not be spammed
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Andy on May 23, 2012, 12:38:14 am
No it won't because like I said its a new problem today duh, only if people decide do then it will which I dnt give a crap about am here to get help not be spammed
its all the same problem--we are trying to help
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: DonalM on May 23, 2012, 01:00:20 am
I am helping when I tell you this....

Please bring it to someone who has plenty of experience with these engines. If you had first then you might'nt be in this mess.
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Sammy on May 23, 2012, 01:07:30 am
I very highly appreciate members that are genuinely trying to help me, giving me rubbish just makes threads boring and long nd helps no1,
Best to keep it nice an simple so people can get help when they need it,
Keep it coming guys and thanks!  :smiley:
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: rich83 on May 23, 2012, 01:08:37 am
Firstly i thought it was down to the pistons or rings but had a compression test done today and all cylinders read the same amount of pressure so this must mean nothing from the engine side?
I am trying to pinpoint the issue here and wondering what other tests can be done to find results, What do the symptoms look like?
yesterday i changed 4 sparkplugs and after a while cylinder 2 started misfiring, got the sparg plug out to find it was gone so changed that plug and now same thing has happened again misfire from the same cylinder any ideas?

Also if you dont want to help dont bother tellng me to go to a VAG specialist because I have, The place am at has a mechanic from the dealer and they are german car specialists, I have excellent service from them for the last 4 years and this is where all the work will take place end of.

And they dont know whats wrong with it? So your quite happy to let them try and fix this issue knowing they dont know their arse from their elbow?  :popcornsoda:
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Sammy on May 23, 2012, 01:12:59 am
Firstly i thought it was down to the pistons or rings but had a compression test done today and all cylinders read the same amount of pressure so this must mean nothing from the engine side?
I am trying to pinpoint the issue here and wondering what other tests can be done to find results, What do the symptoms look like?
yesterday i changed 4 sparkplugs and after a while cylinder 2 started misfiring, got the sparg plug out to find it was gone so changed that plug and now same thing has happened again misfire from the same cylinder any ideas?

Also if you dont want to help dont bother tellng me to go to a VAG specialist because I have, The place am at has a mechanic from the dealer and they are german car specialists, I have excellent service from them for the last 4 years and this is where all the work will take place end of.

And they dont know whats wrong with it? So your quite happy to let them try and fix this issue knowing they dont know their arse from their elbow?  :popcornsoda:

Yes its called diagnosing? You would know wouldnt you what on earth you can't  just know the problem out of your head you need to do testing don't you??
Please stay on topic and stop banging on about the garage
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: rich83 on May 23, 2012, 01:14:45 am
Correct... so they tested it... then what?
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: Mk5 GTian on May 23, 2012, 05:55:19 am

If you had cancer, would you

a) go to the hospital, see a cancer specialist and then go in for treatment immediately with that specialist OR

b) go to a walk-in-centre, see a general nurse who said "well it might be this but I'm not sure" and then go home, keep ringing NHS direct who are in the know but can't actually see your body, so they tell you to go to a cancer specialist at the hospital, and then keep ignoring them and ringing NHS direct hoping for a different answer?

The people who are telling you to go to a VAG specialist with acknowledged TFSI know-how are trying to help you.  :wink:
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: DaveB@Vagbremtechnic on May 23, 2012, 06:14:49 am
You stopped to consider you might have two problems not one.

There nothing to say the Turbo hasn't gone as well.

What's the numbers on the compression tests, when running the compression may still be down on one. Seen cracked pistons cause high oil usage on aero engines.

Have you checked in the intercooler inlet pipe for oil
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: donovan2123 on May 23, 2012, 07:05:36 am
Where are you located? Why not see if there's a member near you who may be able to help all along with vcds
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: vRSAlex on May 23, 2012, 07:05:59 am
Turbo seals gone allowing oil through the boost system into the cylinders then out the exhaust.

This causes white smoke, oil on the plugs and missfires.

The intercooler is probably filled with oil.
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: ktlstar on May 23, 2012, 09:50:54 am
Take it to a Vag specialist who know what they are doing. They can tell you the problem straight away.

The white smoke is proberly condensation  :laugh:
Title: Re: Oil on spark plugs, white smoke from exhaust possible causes
Post by: micky 32 on May 23, 2012, 10:35:17 am
Turbo seals gone allowing oil through the boost system into the cylinders then out the exhaust.

This causes white smoke, oil on the plugs and missfires.

The intercooler is probably filled with oil.

That was my thoughts especially if turbo was overboosting with incorrect map, it's probably a blown turbo feeding the engine with oil. The BWA is well able to handle the KO4. Mine has now 120k, KO4 fitted at 50k. No problems wahtsoever.