Top of body meter, still a little fat

You can check the meter in CAS. You can use the fulleditcas cheat to see it it and if it's not all the way up, you can still make her slimmer with training.

Hi again,,, I´ve got a new problem with my sim... Something started burning in my sims apartment and she died... Isnt she supposed to be able to put out the fire with a fire-extinguisher??

To put a fire your Sim needs to be told to extinguish it. Usually they're freaking out. Another method would be a fire prevention system with sprinklers. 

Yes I told the sim to put out the fire, but she didnt... Okay so there are sprinkles in the game.. Where can I find them?

It can take a few tries. To find the sprinkler use the search box, it's called 'Fire prevention system utility panel'.

Okay thank you,, I think I have to wright that in Swedish, but thats no problem..

I didnt find any sprinklers, but I found something else that I put on the wall.. It said something with fire,, does that work?

That sounds like it indeed!

Okay,, I havent played in a while but I will try that thing,, hope it works..

Has your original issue been resolved? If you not, and you've checked that the sim's meter in CAS says he/she is thin, then the sim is just built to be that way. Fear not, with the CAS full edit mode you can change them to look thinner by dragging their body parts. For example, if they have a stomach that sticks out (a pot belly), turn the sim to the side and click on and drag their stomach.

Reminder on how to enter the cheat:

Type Ctrl+Shift+c to open the cheats dialogue box

In CAS type "testingcheats true" in the box and hit Enter

then type "cas.fulleditmode" in the box and hit Enter