When the outside temperature is low, the display in the instrument cluster may take slightly longer to appear than it does when the outside temperatures is higher.
Additional information and warnings:

WARNING
Instruments
Instrument overviewRefrigerant Oil
Refrigerant oil mixes with the refrigerant (about 20 - 40%,
depending on compressor type and amount of refrigerant) and
circulates constantly in the system, lubricating the moving
parts.
Special synthetic refrigerant oils, for example,
...
Exterior Lights, Switches
HID Headlamp Usage and Safety Precautions
Special tools and workshop equipment
required
Protective Eyewear
Gloves
–
Note the following if working with HID headlamps:
...
Warning lamp
First read and observe the introductory information
and safety warnings
Lit up
Possible cause
Solution
At least one vehicle door is opened or not
properly closed.
Do not drive on!
Open the appropriate vehicle door and then c ...