Hi guys,

I have a special case, all files are attached. I bought a new (actually older in age) cluster file for my 2002 BAM S3, because it has this colormfa display installed, which is the coolest thing (http://colormfa.ru/). I didn't want to modify my original one and this is why I bought the whole other cluster. The thing is that my cluster is 8L0920932H from a 2002 car with a oil level/temperature sensor and the new one is 8L0920932N from what I can guess is a 2000, which appears not to have a definition of this sensor. After I got the car starting and all, naturally I got the oil sensor error. On top of that I could not recode this cluster to tell it there's no oil sensor, since it is missing some channels in VCDS, but that's not really the point.

The first thing I tried is to write the whole 8L0920932H bin file onto the 8L0920932N cluster, but then I got the DEF error, I guess some checksums did not match or something and given I have no clue how to fix this I gave this up... 

Then after much trial and error I was able to guess the part of the code inside the 8L0920932H bin file which is responsible for the oil sensor (see oil_sensor_address_8L0920932H.jpg), noticed that this area of the code in the new one is all empty (FF) (see oil_sensor_address_8L0920932N.jpg) and to my surprise, by simply replacing that portion of the code everything worked (see oil_sensor_address_modified_8L0920932N.jpg).

Well it almost worked... I no longer get the error, the oil level measuring seems to work, but the oil temperature is really off, displaying around -50 when it is around 20 and + 120 Celsius, when it is actually 85-90. I tried different sensors to make sure mine was not faulty, same thing. It is not the end of the world because I have an external sensor and monitor my oil temperature from there, but it is really driving me nuts and I want to fix this.

Here is where I lack some knowledge and I hope someone can help:

1. Are there any available definitions to these cluster files where you can check what is what? (Obviously I was not able to find any on the internet, so the answer to this is obvious)
2. What would be a proper way to migrate the whole bin 8L0920932H file to the new cluster 8L0920932N?

Thanks! Hope someone finds this interesting enough to jump in.

I am looking to keep the oil sensor though, I just need it to read correctly. Any idea how to find out what the highlighted area means byte by byte, a definition or something?

how do you read and write those clusters?

In my case i had to set the cluster to flexible intervall via VCDS. Otherwise it did not worked but this was an octavia cluster.

Checksum is diffrent , you were lucky you didnt write the 2000 year dump to 2002 because the newer cluster is crypto and the def wouldnt be that easy to repair

Pre 2002 model year clusters have FF in the middle part od dump , thats normal