Dipstick Reading High

Pau1GTI

Pau1GTI

Senior Member
T6 Guru
Hi Guys, I've read up on this as much as possible before posting this question.

Having checked my van hot and cold the oil level is above the maximum mark as per below

1000034189.webp
It's difficult to say if the oil is dragging up further as it's pulled out but I suspect it is definitely at at the highest mark at least.

The van was serviced 6k miles ago with filter and oil change, truth is I never checked it after the service or up until now. So it might of been overfilled since then. Or it's the dreaded oil dilution from regens.

I've booked it in immediately for an oil change and new filter, and it won't be driven until then.

My question is, should I sent the old oil away to be checked? If it's oil dilution, how much damage could this of caused in 6k miles? All seems fine with no lights, drives and sounds super smooth. With only 60k on the clock I'm a bit gutted with any premature wear this might of caused the engine as I plan on keeping it a long time.

Ps. Happy New Year
 
Genuine diesel dilution is unusual on these. Not unheard of, but the case for the prosecution is rarely proven.

Occam's Razor suggests the garage simply rammed up full up to the line.

They're happiest with the level about halfway between the lines, so you'll need to pump out c.500ml, perhaps a touch more.

From there you can monitor it, but I certainly wouldn't be flapping like John Inman in a semaphore class at this stage.
 
What was billed and what was actually provided won't necessarily bear any relation to one another, particularly it it was pumped in rather than poured from a bottle(s).
 
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Thanks chaps, I'm in no doubt I'm just worrying over nothing haha

No note of what was put in at the oil change.
 
Pau1GTI said:
Oh that's good news then, is the t6.1 150 a different engine then?. It must of been those I saw having dilution issues.

Thanks
Click to expand...
It depends, some early T6.1 had late T6 engines (MY19). Which interestingly means that MY18 T6 and MY19 T6 sometimes have different engines with same power output. It's the emission control system which makes the difference. Confusing - yes, indeed

The same happened with early T6 - early ones had late T5.1 engines (without AdBlue).
 
Thanks for that, makes sense now.

Would you say I'm best to just do an oil/filter change to be safe, note the new oil level and monitor it. No need for oil tests etc if dilution issues isn't a big thing with the t6 engine. Most likely just been filled slightly too much during the last service perhaps.

Thanks
Paul
 
Pau1GTI said:
Thanks for that, makes sense now.

Would you say I'm best to just do an oil/filter change to be safe, note the new oil level and monitor it. No need for oil tests etc if dilution issues isn't a big thing with the t6 engine. Most likely just been filled slightly too much during the last service perhaps.

Thanks
Paul
Click to expand...
Exactly that.
 
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Dubber_Mike said:
Hi Pau1GTI, did you get anywhere with this and what was the engine code of the car? Friend of mine having similar issues with his 2018 T6
Click to expand...
I forget the code but it's the 150bhp euro 6.

I got the oil changed and don't turn the van off if it's doing a regen. I just let it idle until its finished. The oil level seems to be fine now. I hope that helps 🙏
 
I am sure it is quite common for the dealers to overfill the oil when changed. Mine also had the coolant way overfilled at last service.
When I did an "intermiate" oil change on mine I overfilled it slightly, and suspected that I would get the overfill warning, but I didn't.
I have since checked the oil level using live data from VCDS and it is showing 94mm (100mm is supposedly maximum), and hence not getting any warnings.

I read somewhere that the ECU does a recalibration when the oil is changed somehow, so suspect that is why the decrepancy between the dipstick and VCDS.

Has anyone seen the info on the recalibration? I think it is something like having ignition on when refilling, and mayby when resetting the change interval.

I will recheck at next oil change to see if things change and the dipstick and VCDS allign.
 
manfrotto said:
I am sure it is quite common for the dealers to overfill the oil when changed. Mine also had the coolant way overfilled at last service.
When I did an "intermiate" oil change on mine I overfilled it slightly, and suspected that I would get the overfill warning, but I didn't.
I have since checked the oil level using live data from VCDS and it is showing 94mm (100mm is supposedly maximum), and hence not getting any warnings.

I read somewhere that the ECU does a recalibration when the oil is changed somehow, so suspect that is why the decrepancy between the dipstick and VCDS.

Has anyone seen the info on the recalibration? I think it is something like having ignition on when refilling, and mayby when resetting the change interval.

I will recheck at next oil change to see if things change and the dipstick and VCDS allign.
Click to expand...
Quick update - I was rotating the tyres today, so decided to remove a little engine oil while the van was raised.
It is now reading just below the full on the dipstick and down to 74mm on VCDS (with engine off). With engine running it drops to 63mm on VCDS.
 
manfrotto said:
the decrepancy between the dipstick and VCDS.
Click to expand...
Exactly what discrepancy?

manfrotto said:
It is now reading just below the full on the dipstick and down to 74mm on VCDS (with engine off). With engine running it drops to 63mm on VCDS.
Click to expand...
What engine you have - as the later D-series engines have besides oil level also 75 additional data items re oil level.
Care to share engine blockmap data - preferably 1) engine off, 2) engine at idle?
 
mmi said:
Exactly what discrepancy?


What engine you have - as the later D-series engines have besides oil level also 75 additional data items re oil level.
Care to share engine blockmap data - preferably 1) engine off, 2) engine at idle?
Click to expand...
Hi @mmi
When I mean discrepancy in oil level, the oil level from a VCDS scan is different (less than) what it shows on the dipstick). Current level on dipstick is at max (top of hashed area)
My engine is s CXHA
and these are the blockmaps with engine off and engine at idle. (for me they will be useful as a baseline for future reference as well) I haven't analysed them myself yet, but had a quick look and couldn't see anything too unusual.
 

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Thank you very much @manfrotto
manfrotto said:
When I mean discrepancy in oil level, the oil level from a VCDS scan is different (less than) what it shows on the dipstick).
Click to expand...
manfrotto said:
I have since checked the oil level using live data from VCDS and it is showing 94mm (100mm is supposedly maximum),
Click to expand...
Aah, I see. I don't think VW has standardised oil level sensor reading 100 mm to be the maximum. For oil level low warning the threshold value can be seen at
Code: 
IDE00151    Oil fill level
IDE00152    Oil warning threshold
mmi

Post in thread '[T6_measured] 01-Engine - Oil pressure switches & Oil level sensor'

Oil level sensor:

T6 engine oil level and warning threshold data during a 30 minute run.

Samples taken at 1 minute intervals. Two first and two last samples were recorded engine off.
1636306517533.png
This engine reports oil level of 100 mm when filled to the "top" (e.g. immediately after oil change).
Monday,28,January,2019,08:13:57
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 18.9.0.2 (x64) HEX-V2 CB: 0.4451.4
Data version: 20180927 DS296.0
www.Ross-Tech.com...
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Just a note - the software identifier of the ECU seems to be unique - didn't find the same i my collection (of UK&Europe). Perhaps something related to a different market area?
Code: 
;SW:04L-906-057-Q   HW:04L-907-445-M ---  Engine
;Component:R4 2.0l TDI   H01 0183

The software wasn't recognised at all on site

Welcome to VAG-Flashinfo!

VAG Flashfiles Informations - Version check of VAG ECUs - Update check for Audi, Seat, Skoda and Volkswagen
vag-flashinfo.de vag-flashinfo.de

manfrotto said:
these are the blockmaps with engine off and engine at idle. (for me they will be useful as a baseline for future reference as well)
Click to expand...
Well, you might be interested to collect even a bit more reference data - blockmap data under various conditions - very easy by using VCDS. Perhaps then could feed all that to a AI bot for an analysis :geek:

Just use "Repeats" option - each blockmap on your engine takes 1min 12 seconds so just need calculate how many can be collected on a journey (as can't actually stop the running collection without violence).

1753513033487.png
 
mmi said:
Thank you very much @manfrotto


Aah, I see. I don't think VW has standardised oil level sensor reading 100 mm to be the maximum. For oil level low warning the threshold value can be seen at
Code: 
IDE00151    Oil fill level
IDE00152    Oil warning threshold
mmi

Post in thread '[T6_measured] 01-Engine - Oil pressure switches & Oil level sensor'

Oil level sensor:

T6 engine oil level and warning threshold data during a 30 minute run.

Samples taken at 1 minute intervals. Two first and two last samples were recorded engine off.
1636306517533.png
This engine reports oil level of 100 mm when filled to the "top" (e.g. immediately after oil change).
Monday,28,January,2019,08:13:57
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 18.9.0.2 (x64) HEX-V2 CB: 0.4451.4
Data version: 20180927 DS296.0
www.Ross-Tech.com...
  • Like

Just a note - the software identifier of the ECU seems to be unique - didn't find the same i my collection (of UK&Europe). Perhaps something related to a different market area?
Code: 
;SW:04L-906-057-Q   HW:04L-907-445-M ---  Engine
;Component:R4 2.0l TDI   H01 0183

The software wasn't recognised at all on site

Welcome to VAG-Flashinfo!

VAG Flashfiles Informations - Version check of VAG ECUs - Update check for Audi, Seat, Skoda and Volkswagen
vag-flashinfo.de vag-flashinfo.de


Well, you might be interested to collect even a bit more reference data - blockmap data under various conditions - very easy by using VCDS. Perhaps then could feed all that to a AI bot for an analysis :geek:

Just use "Repeats" option - each blockmap on your engine takes 1min 12 seconds so just need calculate how many can be collected on a journey (as can't actually stop the running collection without violence).

View attachment 297160
Click to expand...
Thanks @mmi

Re my ecu software, perhaps it was updated by the dealer last year when I purchased the van, and the version hasn't been added to the ]Welcome to VAG-Flashinfo! site yet.


There are other software versions with different suffixes, so mine is probably just slightly later with the Q suffix?

Volkswagen​

PartVersionFile typeAdditional info
FL_04L906057E9780frf__V001
FL_04L906057H7238__V002
​

At least I haven't had any ADblue, DPF, EGR etc errors in the 15,000 km since I have had the van, so hopefully the software is a good version

​

 
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