Hi there!

I recently bought Octavia MK3 Scout - 1.8TSI manufactured 2015. It has a strange oil loss.

 

I have driven it for around 600km for now and it has lost 200-300ml from the dipstick. Still on the level between the min and max - it was on middle but now its almost at the minimum level. I am wondering - how is this possible if the oil consumption problems are fixed with this engine generation?

 

The car has no oil leaks, the oil was changed before I bought it (0W30). The engine code is CJS. 

 

I was told to watch the level and when the warning light comes to put 0.500ml on it and watch the level again on regular basis.

 

 

Do you think the car just burns oil or it might be another hidden issue?

 

 

The only upcoming repairs are faulty turbo actuator and water pump - can they be the problem here?

Welcome,

 

When a Low OIl Warning Light or Message comes on then putting 0.5 litres of oil in will still likely be 0.5 litres low. 

 

As it is middle of the Cross Hatch is running the oil lowish.

 

So with the engine and oil at Operating Temperature, so the indicated 90*oC or so get the oil filled to the top of the Cross Hatch are so that it is in area A. 

It is not a 'Warm check'.   It is at the Normal Operating Temperature. (Hot)   when you have the oil level correct when at Operating Temperature, 

You then can know where it is once cold, and before driving places.

 

If you open the bonnet, and even put in no oil the warning goes off for 100 km.   So be aware putting in only 0.5 litres might nit be whey the light is off.

DO NOT OVER FILL THOUGH.  0.5 first,  then maybe 0,25 next could be enough. or maybe another 0.25 top up might be needed.

Thanks for the reply. Now the oil level is at the bottom end of B based on your diagram. I check it only on cold engine. I have never checked it on hot/operating temperature engine. Do I do it correctly? Do I need to top up now or wait for the light? If no light comes so it doesn't burn oil?

Update, check picture for measuring my levels. No warning lights, no oil smell, no blue smoke, no nothing. Should I top up or wait for the light?

 

 

Hello, welcome to the forum.

I'd recommend topping up now rather than waiting for the low oil level light to come on.

You will probably find it will take at least 0.5 litre to raise the level to the Max. Fill level - but suggest adding oil at approx. 0.25 litres at a time, then recheck dip stick level, allowing 1-2 minutes each time you add oil, for it to reach the sump. Recheck the level when the engine has reached normal operating temperature - again after allowing time for the oil to drain back to the sump.

Edited 11 May, 20242 yr by Warrior193
grammar

Just A FEW MINUTES,  for the 90*oC sort of heat of oil to get back to the sump.

 

Checking when Filling a fuel tank type of time that VW have gone with for decads.

Only the 1.2 44 kW engines checked cold, and they only have 2.8 litres of oil as a capacity.

 

Yes it is all a bit OCD.   But it is VW Group with hard to read dip sticks with fresh oil in a Petrol Engine.

 

Be sure enough in when hot,  then when cold you can see where that is on a dipstick.  

Then before heading off you check, like in the old days, car full of nearest and dearest you are maybe not stopping until you get where you are going. 

 

THIS IS JUST TO BE SURE YOU ARE RUNNING WITH ENOUGH OIL.

Not an answer to if using TOO MUCH OIL.   But you need to run at full oil capacity to check if you are burning oil. Using too much. 

 

Running 1/3 or 1/4 low has the oil working harder. Not doing the cooling as much as at the correct level. 

 

 

Edited 11 May, 20242 yr by Ootohere

Yes, it is very hard to read the oil level - I need to stare like an idiot to see the level but I am 99% sure it is where I pointed on the picture above.

That doesn't answer the question - where it is gone?

 

I will leave the car on Monday for the repairs and ask the mechanic what to do also.

 

My old Kia that is 300000km doesn't touch a single mm of oil. Strange... Might be OCD, might be real problem, no idea.

Plenty earlier 1.8TSI,s have had oil consumption issues.

Euro 5 emission, 1.2, 1.4 & 1.8 TSI & 2.0 TSI.s.

 

But first you need to check.   That fo an oil consumption test is a Oil & Filter Change, then oil dropped and weighed then the car driven and then then oil dropped and weighed.

 

Pillocks at Dealerships even though 1 litre of oil weighed 1,000 gram. So they were as much use as a Chocolate Fire Guard.

857 grams a litre at 15*oC. 

 

....................

Top example.  For some reason they try to blame the concerned car owner for messing up the test by putting in Oil. Cretins.

Bottom example done by an idiot.

*Members got new engines when pointed out that the TECHNICIANS are not fit for purpose and actual oil use was not within any acceptable limits.*

Out of Warranty, just do your own checks IMO.

 

(Personally i would forget the VW 504 00 / 507 00 long life oil, 0w 30 FS III or 5w 30 FS III and run the engine Fixed Oil & Filter services and use VW502 00 , 

so 5w 40 FS.)

 

Edited 11 May, 20242 yr by Ootohere

Hm, can it lose the 200-300-400ml of oil because it was recently changed and then to stop losing? Last few days haven't moved from the position it is now no matter my driving style.

11 minutes ago, limbonic said:

Yes, it is very hard to read the oil level - I need to stare like an idiot to see the level but I am 99% sure it is where I pointed on the picture above.

That doesn't answer the question - where it is gone?

 

I will leave the car on Monday for the repairs and ask the mechanic what to do also.

 

My old Kia that is 300000km doesn't touch a single mm of oil. Strange... Might be OCD, might be real problem, no idea.

It is normal for an engine to use a small quantity of oil - provided the usage does not exceed specifications, there is nothing to worry about.

Some engines may appear to not use oil between oil services, but small usage is normal.

6 minutes ago, limbonic said:

Hm, can it lose the 200-300-400ml of oil because it was recently changed and then to stop losing? Last few days haven't moved from the position it is now no matter my driving style.

Quite possible that the recent oil change was slightly short of a complete fill.

2 minutes ago, Warrior193 said:

It is normal for an engine to use a small quantity of oil - provided the usage does not exceed specifications, there is nothing to worry about.

Some engines may appear to not use oil between oil services, but small usage is normal.

 

I am aware of this and also the manual saying it's normal to consume but from middle to almost minimum for 600km sounds insane usage.

^^^^ Which means.  From a Service be sure the correct quantity of oil is in the engine.  From that point checking is easier, and oil use might be as it should.

Many use no oil.

 

MIDDLE, was low oil was it not, who serviced it and how much oil was used, and was it at the middle when checked from the Oil & Filter change. 

Edited 11 May, 20242 yr by Ootohere

Just now, Ootohere said:

^^^^ Which means.  From a Service be sure the correct quantity of oil is in the engine.  From that point checking is easier, and oil use might be as it should.

Many use no oil.

 

Bought the car at middle of the dipstick now it's almost minimum

So doing an oil change.

Or have it at the top of cross hatch when hot. Area A is above the cross hatch.

 

It might be an oil user. Maybe why it was up for sale.   So get in enough oil and see. 

 

Are you running Super Unleaded petrol,   98 ron or above?    Just being nosy.

?

What country are you in, and what is the weather / temperature like now?

How far are your trips daily? 

Inspection at the dealer said that it lost 300ml between changes which is perfectly normal. I'm in Bulgaria - average weather, above 10 degrees and I do short trips two times a week. Haven't been outside of town yet with this car.

 

Regular 95 Petrol Unleaded.

Edited 11 May, 20242 yr by limbonic

Also forgot to mention that they fixed a small oil leak yesterday but they said it was minimal and maybe not related to this problem. It was semmering.

15 minutes ago, limbonic said:

Also forgot to mention that they fixed a small oil leak yesterday but they said it was minimal and maybe not related to this problem. It was semmering.

 

They changed the crankshaft sizing. I bought it with this problem and I think it might have lost the oil from there but as I said the service center said it was a minimal leak. Is it possible to leak slowly and with small amounts the lost oil?

2 hours ago, limbonic said:

 

They changed the crankshaft sizing. I bought it with this problem and I think it might have lost the oil from there but as I said the service center said it was a minimal leak. Is it possible to leak slowly and with small amounts the lost oil?

The translation is not good. Sizing? Do you mean the pulley ring or the rear main seal?

 

The mk3 1.8 is vastly improved regards oil usage but not totally immune.

 

You need to discount all the other options first, a new genuine pcv would be a recommendation abd vw502.00 5w40 oil.  Check for all oil leaks including head gasket at back of engine. 

 

Then, as others have suggested, either weigh oil in / out or put in specified quantity, make sure top of hatch, no more, wait till oil light or bottom of hatch, refill qty over what kms...then make a  considered interpretation /  decision..  

 

Edited 11 May, 20242 yr by TheClient

Well, its this part: https://nasauto.bg/semering-kolqnov-val-pr8892305.html

I don't know how to say it in English  Could this part leak around 200-300ml for 600km? They said not a big leak.

 

Its strange that I measure the oil everyday and it hasnt moved a mm since reaching almost the bare minimum. The repair was yesterday.

37 minutes ago, limbonic said:

Well, its this part: https://nasauto.bg/semering-kolqnov-val-pr8892305.html

I don't know how to say it in English  Could this part leak around 200-300ml for 600km? They said not a big leak.

 

Its strange that I measure the oil everyday and it hasnt moved a mm since reaching almost the bare minimum. The repair was yesterday.

Yeah. The front crank seal I think. I doubt it was leaking that much. Did you see oil on the ground? How much was in the undertray.

 

Regardless, I would suggest replacement of a genuine pcv as maintenance. They are only really reliable for about 4 years 60 or 70k kms... 

 

What kms are on car? 

Edited 11 May, 20242 yr by TheClient

29 minutes ago, TheClient said:

Yeah. The front crank seal I think. I doubt it was leaking that much. Did you see oil on the ground? How much was in the undertray.

 

Regardless, I would suggest replacement of a genuine pcv as maintenance. They are only really reliable for about 4 years 60 or 70k kms... 

 

What kms are on car? 

 

Well, I can't check for oil on the ground since this Octavia is Scout and its all with protective material under - so no oil.

 

I am second owner and the car is with full service history (no PCV change) on 130 000km. It was sold from the official Skoda dealer here so I doubt it comes with a general oil problem. And If it had it would have been fixed under warranty. Nobody will drive brand new car 130k km with leaking 5l/10k km I guess.

 

I will discuss this with my mechanic on Monday - maybe he will find something. They will inspect the whole turbocompressor before repairing it so if there is an oil leak from it - voala - its this. Lets see...

38 minutes ago, limbonic said:

 

Well, I can't check for oil on the ground since this Octavia is Scout and its all with protective material under - so no oil.

 

I am second owner and the car is with full service history (no PCV change) on 130 000km. It was sold from the official Skoda dealer here so I doubt it comes with a general oil problem. And If it had it would have been fixed under warranty. Nobody will drive brand new car 130k km with leaking 5l/10k km I guess.

 

I will discuss this with my mechanic on Monday - maybe he will find something. They will inspect the whole turbocompressor before repairing it so if there is an oil leak from it - voala - its this. Lets see...

True.

 

But....

 

1. The undertray won't hold 300ml plus oil. So it will Leak out via drainage holes.

 

2. With oil consumption issues, they can occur outside warranty as opposed to being there from purchase.

 

As said, I would recommend pcv replace regardless. 

 

Good luck. Hopefully it won't be a piston ring or valve stem seal problem.  The ea888 gen3 is complicated. Even a cam cover gasket is hours and hours work due to it being the integrated upper cam journal bearing mount as well... 

I will keep the thread posted after the mechanic says his word. This might be in help for other users reading the forums.