Are you making video recordings, when you can, of these faults?

I can't record the door locking or TPMS ones as there's nothing to see.

 

I've sent Garlands all of the error codes from VCDS/OBD11 and 2 pictures of the oil sensor failure on the VC.

Update. Skoda Technical are none the wiser and so the car has to return to Garlands yet again in December (19/20th).

 

I've now reached the point where if they cannot resolve the issues within the car, I will be seeking legal advice in regard to cancelling the contract. 

Start the legal action now with 19/20th Dec as the final attempt to resolve it or replace 

Well it went in yesterday and guess what apart from one minor glitch, it was another case of NFF (no fault found).

 

They've purged the car memory of any minor faults that OBD11 didn't show or have access to, I showed the chief technician the scan results and then did another one with him being present.

 

The only one he's concerned about is the alarm system one, because as I told him that I left the car in the car park, locked it, checked the rear doors were locked, which they were (I can't touch the front one's as it will unlock the car again as it has KESSY), walked away knowing that it was locked and secured. 

 

Came back to the car 7h later and it was unlocked doors were able to be opened without me touching the key fob or door handles at the front or boot lid, no one had been near it or had a second or tertiary key to it, yet it unlocked itself. So that will be investigated further. 

 

The oil sensors are fine, the wiring and optical connections are fine, the car is at the moment at least behaving itself perfectly, tried the cruise control that's fine too, so for the time being I'm going to be a cautiously happy driver.

I don't use OBD11...I have full on VCDS....

 

When doing fault finding via loads of codes look for the ones with the earliest date/time & mileage stamps....(VCDS does this)....especially after you have cleared the whole lot.....

I did a scan this morning and there were loads, but rather strangely they were from yesterday when it actually showed nothing at the dealership! 

 

I've purged them and done two scans (two hours apart) this morning and I've got a clean sweeps. 😊

 

No more faults. 

The dealer ODIS system may not see the same fault codes as your OBD11

 

I have seen different results when using VCDS then checking with VCP 

same when using ODIS and VCDS

 

I have also seen a  case where an older VCDS version always picked a fault up, after updating VCDS the fault never came back.

 

 

Well he most certainly recognised some of the faults and their codes, most impressed by the speed and accuracy of OBD11. 

 

He wasn't even aware that there was any software revisions available for the car, that OBD11 showed him that were available for my car.  

Well quelle surprise. 

 

Driving home from work at 1.30 this morning and hey presto, oil sensor failure alarm appears, then disappears and it does this on another three occasions. And there I was thinking that it was all sorted out. 

 

OBD11 scan and dump of it has been sent to Skoda customer service for them to send to their technical department. But I have now said that I want them to take the car away, strip it down and sort it out once and for all, otherwise I will exercise my right to terminate the PCP/Lease and they can have the car back. 

 

OBDeleven data log

Date: 2020-01-04 01:40

    VIN: [REDACTED] 
    Car: Skoda Octavia RS 245
    Year: 2019
    Body type: Saloon
    Engine: DKTB 180 kW (245 HP) 2.0 l
    Mileage: 10342 KM

---------------------------------------------------------------
01 Engine Control Module 1

    System description: 2.0l R4 TFSI
    Software number: 5G0906259S
    Software version: 0002
    Hardware number: 06K907425J
    Hardware version: H13
    ODX name: EV_ECM20TFS0205G0906259S
    ODX version: 001003
    Long coding: 0A2540324464050B1000

    Trouble codes:
        P019800 - Engine Oil Temperature Sensor Circuit high
            Intermittent
                Date: 2020-01-04 01:32:36
                Mileage: 10338 km
                Priority: 2
                Malfunction frequency counter: 4
                Unlearning counter: 255
                Engine speed: 1172.25 1/min
                Normed load value: 0.0 %
                Vehicle speed: 71 km/h
                Coolant temperature: 81 °C
                Intake air temperature: 5 °C
                Ambient air pressure: 1030 mbar
                Voltage terminal 30: 14.687 V
                Dynamic environmental data: 209628110E0411EC0211DC016411ED3E10A6019511EE2211DB06D7
 

Edited 4 January, 20206 yr by TheWanderer

Awful to hear its kicked off again. Fingers crossed for a resolution.

You’ve shown the patience of a saint in this matter and I would have been looking at handing the car back a while ago. I hope you get this resolved soon. 

Here we go. The fault that keeps driving me nuts.

 

A fault that Skoda says doesn't exist and they can't trace. Well here's the proof that it's happening and this is the 3rd or 4th time in a week and the duration of the warning is increasing slowly but surely. 

 

If anyone has any ideas why this fault keeps occurring can you let me know so that I can tell the dealer what to look for, because it seems that they're completely baffled by it too.

 

I still think that it's the sensor that is at fault, that or the oil which is the 0W20 stuff that they're now recommending could be causing the issue, or that there's something inside the engine that's floating around in the oil and every so often it either touches the sensor or goes past it, triggering it to show a fault. 

 

I get no reduction in performance, just the warning lights and messages. 😞 🤔

 

Edited 21 January, 20206 yr by TheWanderer

It’s a long time since I did auto electrical work, but for it to flag the oil sensor as faulty  “ Engine Oil Temperature Sensor Circuit high “, there are only essentially 3 possibilities - The sensor is faulty, there is a break in the wiring between the sensor and the control unit (pcm), or there is a fault within the pcm.

Faults like these need a very methodical approach to diagnose and obviously a technician who knows what they’re doing. I used to love sorting stuff out like this, but it is very time consuming and the dealer is probably going to have to put a good tech on it for several hours and that is going to cost them a lot of money, and they clearly haven’t done that yet.....

The absolute first, cheapest ,and easiest test would be to swap the sensor with a known good one from another car, give you it back and see if that cures it.

 

Can you get it to keep the oil temp displayed on the dash and watch what happens to it when the sensor fault occurs. It would be interesting to know if it always happens at a particular temp, or the oil temp keeps displaying as normal despite the sensor fault, or if it suddenly loses the oil temp altogether.

From the symptoms you describe I personally suspect a loose/bad connection in a multiplug somewhere. If I was working on it I’d concentrate on that oil sensor fault as if it leads to a bad earth or connection that could also be the cause of the locking issues.

Edited 21 January, 20206 yr by classic

The odd thing about it is that it is so random, sometimes it happens after just 1½-2 mins of starting the car, other times it's after 5-10 or more.

 

It can be fine in stop-start traffic one trip, then appear 2 or 3 times in quick succession on another, it is generally fine on longer trips with nothing appearing, has done it once on M3, but then it didn't reappear for two weeks! Most bizarre. 

Your car reminds me of my next door neighbour- UNPREDICTABLE. 

It shows you how weird it, is in that there's no connection or correlation between them. 

 

It can happen with the environmental temperatures at below freezing -4°C and when it's nice and warm in the ambient range between 17°C - 25°C, which I thought maybe a factor, but its not.

 

At slow speed, stationary & couple of times at speed, so nothing to link.

Sounds like an iffy sensor TBH.  It should be easily done under warranty.  One of the joys of ODBEleven is that you can enable the function to keep an eye on the battery level.  I think it is 10 credits.  Pressing and hold the trip reset will give you the option to see the status of the battery.  That will give you an indication if there is an issues there.

 

Thanks

 

 

Max

Quick question. How long should it take for oil temperature to appear on the oil temperature display? 

 

Did the 20 min drive into work and it only just started to appear at 40°C. That to me seems a long time considering that the water temperature comes up to working temperature quite quickly. 

28 minutes ago, TheWanderer said:

Quick question. How long should it take for oil temperature to appear on the oil temperature display? 

 

On my 2014 1.4TSI the oil temperature sensor shows "--" until it hits 50 deg C.  At this time of year, that's normally around 10 miles / 20 minutes into my journey.  The water temp rises *much* faster.

Five or ten minutes. These TSI's have complex water cooling designed so it warms up quickly (for emissions). 

Takes mine an age to display 50 Degrees, water temp is up quite quickly, quicker than the TSi in my Mark II FL

Well it has been in and...

 

They found a defective door locking motor which has been replaced under warranty. 

 

A new oil level sensor has been installed and the oil has been drained and replaced again under warranty. 

 

Took it out of the dealership and gave it a good mixed run and so far so good. (That's probably given it the kiss of death). 🙄

3 minutes ago, TheWanderer said:

Well it has been in and...

 

They found a defective door locking motor which has been replaced under warranty. 

 

A new oil level sensor has been installed and the oil has been drained and replaced again under warranty. 

 

Took it out of the dealership and gave it a good mixed run and so far so good. (That's probably given it the kiss of death). 🙄

Fingers and toes crossed this time.

Well it seems that they've finally done what I suggested and replaced the sensor and oil, which eliminates the possibility of oil contamination with swarf or other foreign objects. 

 

It'll be interesting to see if the fault recurs, in which case it'll be a known that it's an wiring rather than an electronic fault.