@varooom - I just noticed ur profile states u have an Octavia.

The pics u have referenced r for an Octavia mk3.

The Octavia has a different tank setup and size altogether!!!

 

Ur going to have different PR Codes to that of the Superb.

 

As for the PR codes I listed above, it doesn't matter wat the market is, or when in the world, the PR codes for the Superb r the same.

0M4 is 66L

0M4+1Z2 is 76L 

 

PR codes between different models will vary.

 

I don't understand why ur comparing the Octavia and Superb tanks...sorry.

Edited 3 August, 20223 yr by JR RS

On 01/08/2022 at 22:29, JR RS said:

p.s. mine has the optional larger fuel tank (1Z2), which adds another 10-15L or so, to the standard 66L tank.

I guess it started here, with you stating 1Z2 adds an extra 10-15ltrs to the standard tank size.

When this code is only for an increase in the amount of fuel put in the car only.

 

Given mine has the same code, but also no fuel tank code, you would assume I haven't got one.

 

 

When I put my car details in ETKA, as you hopefully can see from the image, the 1Z2 code has no correlation and is not how the car determines the tank size fitted.

Appreciate how mine is an Octavia compared to a Superb, and how that might confuse some, but I hope you can see in some markets the expected PR codes aren't listed (my tank for example)

In local market, you do have a tank specified, be it 66ltrs or 7xltrs for your PR code.

It does seem to me that 1Z2 relates to more juice in the tank, with that description? 

 

It would also explain why the price for 1Z2 on the Bosnian (?) build sheet is only 10 marks (£4)

6 minutes ago, Patent said:

It does seem to me that 1Z2 relates to more juice in the tank, with that description? 

 

It would also explain why the price for 1Z2 on the Bosnian (?) build sheet is only 10 marks (£4)

Can you imagine 1Z3, if your tank size doubled.

 

 

So yup all 1Z0 to 1Z9 are all fuel fill at factory.

I did an experiment today in the iV. I let the range drop to 0 miles. It took 53.4 litres to fill. The internet suggests the tank capacity is 53l so this one certainly isn't creating an artificial reserve capacity!

 

I think when you factor in fuel lines, filter and the filler neck, there's plenty of scope for more than xx ltrs, which is where people get confused when they "overfill"

 

I did also read that VAG spec a tank at say 50ltrs, real capacity is a few more litres for expansion and no doubt about 10% extra space.

 

Only way we would truly know is to buy a tank and measure it's full capacity, I'll pass on that myself 😂

The experiment was made less risky by having a fully charged traction battery to haul me back to the petrol station

On 24/07/2022 at 21:07, Acrab said:

Hi,
I tell you a detail that has happened to me with the fuel level indicator. The fact is that the other day the reserve turned on when I was getting home and I left it like that, although I was surprised because I could have sworn that I had enough gasoline, but I wasn't sure. The next morning I start the car and to my astonishment the level of the needle rises a half a quarter of a tank more or less, that is to say, that in theory it had the gasoline that I thought. In any case, I give him €40 and the fuel level stays at a little less than half of the indicator. Today I had to go to Seville and to my surprise I notice that the needle goes down too fast, in fact, when I got to Seville I was halfway through the last sector, already close to the reserve. This was clearly not normal. I have filled the tank in Seville and I have come home, 130 kms, without the stop needle having moved, something normal on the other hand, and as another colleague indicated previously, with the full tank the needle does not move (at except me), until after about 200 kms. The gauge has been calibrated the same when filling the tank (that was my intention when filling it, to try). We will have to observe how he is marking (I have verified that from the middle he goes down faster) Has something similar happened to someone?

Excuse my english
Thanks.

 

I just want to say you are 100% correct that the needle on a full tank does not start to drop for a long time. The estimated range is in fact incorrect too.

 

Drove off on holiday today (in Europe, so I am talking KMS today) and this morning I filled the tank at Dover prior to boarding the ferry.

 

The estimated range showed 1024kms left, around 1.5/2 hours later the needle had still not dropped from the full position (which I know is always the case) but I never usually pay attention to the range, and in fact today noticed after the 1.5/2hrs that the estimated range was still on 1024kms.

 

So, it's a fact that the measurements stop at the needle on the full position, but the tank actually holds a lot more fuel than the needle and estimated range reports back.

Edited 13 August, 20223 yr by Gax

No it isn't!

 

Despite how optimistic it is looking at present I guarantee that you wont see the 1024kms on that tankfull without driving 100kms with the computer saying zero kms remaining, let alone 1024 kms plus 1.5 hours driving.

The estimated range will have appeared to have gone up because this journey (cruising on autoroutes?) will be giving better MPG than the previous tankfull so it has recalculated.

 

I have kept an eye on both MPG and range on all 3 of my skodas for the last 16 years so I am quite used to its foibles, I can also predict usually to within a couple of minutes when the low fuel warning will come on.

 

Sad that my life should have come to this, the young J.R. would have had no time for this old fart!!

It didn't go up, it stayed static on that reading for a long time and then started to decrease at the same time the needle finally started to drop.

 

Everything I said did happen, I was there and I was driving the car.

21 hours ago, J.R. said:

 I can also predict usually to within a couple of minutes when the low fuel warning will come on.

I'm still amazed that nobody at VAG has deduced that's it's stress inducing for their cars to use the same "bong" noise for low fuel, low washer fluid as well as more serious things like low coolant and oil levels

 

ETA: especially when they've gone to the effort of programming the parking sensors to make a different chime when you've well and truly got the car wedged in somewhere on multiple sides

 

Edited 14 August, 20223 yr by Patent

4 hours ago, Gax said:

It didn't go up, it stayed static on that reading for a long time and then started to decrease at the same time the needle finally started to drop.

 

I chose my words very carefully and said "appeared to have gone up"

 

If you start with an indicated range of 1024 kms and after driving 1.5 / 2 hours lets say 200km it still indicates a range of 1024 kms then the range for the full tank as indicated has appeared to have gone up from 1024kms to 1224kms, it wont have as the fiddle factor program steals range from when the level drops below approx 3/8 of a tank so that when it shows zero mile remaining there will be a "virtual reserve" capacity of 5-7 litres still remaining, which I predict in your case (dependant on driving conditions and journey profiles) would happen at 924kms and if you carried on driving as I do until close to running out you would have covered the 1024kms indicated when the tank was filled.

 

The guage and range estimations are remarkably accurate when the tank is full (if you drive as you had been driving) but the cheating comes in beneath 3/8 of a tank, if you drive beyond the "zero miles/kms remaining" as I do then you can achieve the estimated range, I fill up when I have covered 600 miles = 1000kms and there is usually 1.5 litres left in the tank.

 

You can check the exact fuel level in litres using VCDS, the sender unit and fuel computer are remarkably accurate right down to one or two litres remaining but only if you are looking at measuring blocks in VCDS, otherwise beneath 3/8 of a tank it starts stealing your fuel!

 

I ran my MK2 Octavia out on test deliberately on the first tankfull to see what the real range would be, after it ground to a halt I put in the contents of a 5l jerrycan and was amazed to not only see it register on the guage but for it to show 30 miles range, amazing considering it can only have been maybe 1cm at the bottom of the tank, I was maybe one mile from the filling station, during that time the range dropped from 30 miles to 20, then 10 and the  zero miles, it was clawing back the virtual reserve capacity.