HI FF Boys And Girls, another question, I like to watch the Tv/Listen to the Radio, however I find that the front screen turns off in about 12 mins after shutting down the engine. Can this time be increased to at least 30 mins, this is the time I got out of my Mercedes GL? I found by restarting the screen this gave me one hour of viewing time/listening time.Which was great while waiting for the kids doing sports. I hope that the dealer might be able to up the time.

Basically no , unless you fit a second batterie . The shut down is because whilst you watch TV the car is fully awake and all the other computermebobs are drawing power and the shut down is because the car is trying to protect the batterie .
I know because last week I popped my Drive in cinema cherry so to speak , I over rode the shut down without starting the engine big mistake .
On a plus note if you have a drive in cinema you can use the always free space behind the projector hut, pop your IID tool in and rase your suspension right up and bingo perfect view and no competition for a good space
Just remember to turn your engine on when it tells you to
Edit; once again I have replied to an L405 question without looking and my answer may be (probably is ) complete rubbish.  2008 MY Supercharged
Rimini Red / Jet
four zone climate
remote park heater
and no ugly kid windows.
magnus satis quod turpis satis

Oh Axle