Hi all, Just looking for some advice. I've noticed the electronics going a bit funny in my S class where - in the morning the car has a very lazy start which feels like a weak battery - the parking sensors go off at times but are fine after a restart - climate doesn't kick in properly until car is driven for a bit - when car's not driven for a few days remote locking sometimes doesn't work but is fine after a good drive I've had codes read (Delphi system and not Star) which were a number of sensors for various components linked to the above but upon clearing nothing has come up. My mechanic is saying it's most likely a weak battery as it can trigger all sorts of codes when there's not enough power to the electronics. I'm thinking the same but can there be something draining the battery when it standing? I came across some posts which were hinting this can be the case as well. Any advice would be appreciated.