There is no such map on the RS4.

If you want per gear on air path, you will have to modify the asm code for LDRXN lookup and move the map to the end of the cal area.

https://xyproblem.info/

Use the EGT sensors on the car and set the limiter.
Or if you want a larger control area then fit the RS6 ones, they can read already from -40C.

The RS6 parts are:
077919529D
077919529E

There's aftermarket replacements that exist for them too.

This is the most optimal way of EGT control. You "don't want to go" - why exactly? When you are hitting high EGT then your nr1 priority is to limit it to save the engine. What you want or not want is not important at that point.
This is the exact reason why these cars have EGT sensors from factory, to not have to run very rich lambda in 1-2-3 gear, but to protect engine in case of very long WOT situation.

TABGSS of course.
All you need to do is set this value and then it will not exceed it by dumping fuel.

If you want to additionally to reduce the boost in this situation, then also configure LDOB (overboost function) to give you a limited time (in seconds) with the higher boost target, and then give a lockout after that.
For better protection with bad fuel there is additionally KFFLDEO, KFFLLDE, KFFSLDE. This is already somewhat configured from factory.

By using all these features together you can achieve very good EGT control, but nr1 is fitting EGT sensors if they are not already fitted, because this will save the engine.
If you configure LDOB and LDRLMX maps correctly then it will almost never hit the TABGSS limiter.

Any kind of gear based load limiters are the completely wrong approach. The EGT is not dependent on gear, it is dependent on how long you stay WOT and on fuel/ignition conditions. If you put the car on eddy current brake dyno, you can easily hit the high EGT in 3rd or 4th gear by making the dyno hold the roller speed constant.

Wrong. It will also go 0.75 or lower lambda OEM.
Your "builder" has 0 understanding of combustion process. On WOT the mixture richness is not going to do anything.
The problem is on cold start when the fuel does not evaporate. Nothing happens to the oil running rich on WOT because the engine is hot and unburned mixture goes to exhaust.  It does not get deposited on cylinder walls or in the oil.
Claiming this is ridiculous.

You invented an artificial "problem" and trying to solve this "problem".
Your solution is not inventing an artificial "problem".

There is a minimum lambda target. Overall you should tune the engine so that it does not need 0.7 and lower lambda to keep EGT in check.

If this is not the case, then you are trying to solve an issue with tuning that was made by your super duper engine builder, who built the engine with too high compression ratio for the required boost.
This causes you to run too late timing and your EGT problems.

You are not going to solve mistakes in hardware with software mapping. Take the heads off, install compression dropping headgaskets, and your problem will magically be solved.

Instead of further theorycraft start posting logs. You have hardware issues or huge issues with mapping to cause high EGT. The RS4 does not have EGT problems.

LAMBTS

https://s4wiki.com/wiki/Tuning#LAMBTS

Data from 8D0 907 551 K

I didn't know that, thank you for your appreciated advice.

The lowest possible value of the ATR module is lambda 0.6?


Yes, that's why I'm here, because I want to learn from you and other experienced tuners how to tune a ME7.