[Closed] It's nice to have hot sunny weather but

I get a strange fault on my van when the weather gets warm.
When the things warm up the engine management light and the airbag light come on intermittently for maybe 20 seconds then off for a few minutes back on for a bit and so on. Everything seems to be running fine, no errors recored on reader
Happened during last year's very short summer no lights during the whole winter things get warm and they are back

Van is an 07 vivaro 2.0. Cdti thought I would ask before a trip to someone who can dig a bit deeper into the engine management