We have inherited a bosch fridge freezer without instructions and it has a basic temp controls for the fridge and the freezer numbered 1 to 5 but which is the coldest end of the scale, 1 0r the 5? its just a slider thing to adjust but i have tried both ends but find it difficult to tell which was coldest!
Have looked online but i need a model number which i cant locate just yet as my eyes not open enough plus fridge in garage and surrounded by junk.

I think I'd just put it on 5, put a bowl of water in both sections and wait !. Fridges & freezers don't like being moved so give it time to settle.

I have a Bosch fridge - 2 is the lowest setting on mine.

ok ta
we've had it ages so not been moved but i've never worked out the settings!

5 is the coldest setting.  Had one several years ago, but when they start to get old and go wrong, they are very expensive to repair.  Loved mine though.

Have you checked to see if Bosch do an on line hand book for your model?