Hello,

 

is there anyone who has a experience with white "milk" consistency on the oil cap?? 

 

I just found out this problem on my car. After searching information about this problem I realised that this problem can be caused by many factor.

So far I know, I havent noticed oil mark in the coolant tank. Coolant level is same since I bought the car. Engine is not overheating and do not produce white cloudy smoke. 

 

I use car every day for commute to the work what is around 4 miles one way so I believe very short distance. 

 

I have around 131k miles on the clock.

 

Thank you

probley water getting into the system or the car isn't having a chance to run at its working tempture

How long have you had it and when was the Oil & Filter changed?

 

If you do not know do a Service / Oil & Filter and be aware of H20 build up with short trips and the Oil & Engine not up to temperature.

You know now so monitor with the new oil.

Oil service was done 7 months ago at 126 753 miles. Now is about 131 6xx miles on the clock. White emulsion has appeared last week when weather was cold. Previously I haven't noticed this problem. 

 

In case of blowed head gasket, roughly,  how much does cost to replace it? Any experience?

Edited 8 December, 20169 yr by Nosnx

It's the short journeys mate, had exactly the same thing on my S3 2.0 TFSI Quattro, nearly shat it thinking it was the HG.

 

4 mile journeys the oil aint even getting hot to be honest.

It's the short journeys mate, had exactly the same thing on my S3 2.0 TFSI Quattro, nearly shat it thinking it was the HG.

 

4 mile journeys the oil aint even getting hot to be honest.

 

yeah I think so, will clear up oil cap and take it for longer trip...on the weekend..then I will see...

+1

Non TFSI owners will worry you to death. Nearly panicked myself the first winter. Actual owners can confirm that this starts when temps drop and short journeys are the norm. Stops about April.

Make sure your thermostat is working also, with age they tend to open  a bit early which doesn't help.

Keep a watch on the oil temperature, it's one of the available displays on the maxidot.

 

At this time of year it can take 2+ miles to get up to 50C, & perhaps twice that to the working temperature, which is 90+C.

 

DC

Mine is the same but my thermostat is faulty and car only gets up to around 70 when moving.

I'd put it down to the short trips.

 

If your car wasn't fitted with a bonnet insulator, that might help a tiny bit but in reality, you really need to get some decent heat in the engine for at least 20 minutes.

 

It would probably be worthwhile to decrease the service intervals to every 10,000km (whatever that is in miles).

 

Better still, do what I do and walk, ride or take public transport if the journey is only short.  I realise this might not be convenient for everyone but I've lost 10% of my body weight this year because I started walking instead of driving (and I was already quite active).  Between walking and public transport, my fuel spend has reduced 75%.  Just a thought.

Short trips, rain/moisty weather, temperatures around 5 deg C is perfect conditions for condensation inside engines. If oil doesn't reach operating temperature of 90-100 deg condensated water will accumulate.

I am not knowledgeable about your specific engine, but all engines have crankcase ventilation. Maybe it is a pipe or hose going to the air filter that have been clogged or seriously restricted, perhaps there is a small filter or expansion chamber which have been blocked with dirt?

Thank you guys for all thoughts. I appreciate it. 

 

Make sure your thermostat is working also, with age they tend to open  a bit early which doesn't help.

 

The engine need same period for warm up like in summer time so I think, thermostat is ok. 

 

Mine is the same but my thermostat is faulty and car only gets up to around 70 when moving.

 

I don't have problem to get temperature on 90 on my way to the work what is around 4 miles.

 

Keep a watch on the oil temperature, it's one of the available displays on the maxidot.

 

At this time of year it can take 2+ miles to get up to 50C, & perhaps twice that to the working temperature, which is 90+C.

 

DC

 

I have MY 2008 that mean no temperature display on maxidot.

Short trips, rain/moisty weather, temperatures around 5 deg C is perfect conditions for condensation inside engines. If oil doesn't reach operating temperature of 90-100 deg condensated water will accumulate.

I am not knowledgeable about your specific engine, but all engines have crankcase ventilation. Maybe it is a pipe or hose going to the air filter that have been clogged or seriously restricted, perhaps there is a small filter or expansion chamber which have been blocked with dirt?

 

Is PVC crankcase ventilation? 

Is PVC crankcase ventilation?

I don't know, maybe this "Positive Crankase Ventilation" has something to do with it. It seems that it is common to get some mayonees in the filler cap caused by short trips in autumn/winter conditions. Are you sure you didn't have it one year ago?

I don't know, maybe this "Positive Crankase Ventilation" has something to do with it. It seems that it is common to get some mayonees in the filler cap caused by short trips in autumn/winter conditions. Are you sure you didn't have it one year ago?

I can't say, I'm owner since May 2016. I check oil level every week and this problem appeared two week ago when temperature dropped down under zero.

Yesterday I cleared it and today I've done 150 miles trip. No "mayo" on the oil cap...

This has been a feature of the 2.0 TFSI engine since it was first born.