You could try the AA or RAC if you are a member. My friend locked himself out of his BMW and the AA bloke toook about 20 seconds to get in.
Mercs still have pop up buttons so as far as I know they can be got in to with a blade between the door and window if you know how. (for reference, I don't). Do be prepared for the alarm to start going off though
All sorted thanks, the AA managed to get the doors open but then the boot was still locked, but he tracked down a vacuum pump that opens and locks the doors and boot (located under the back seat next to the battery) and blew some compressed air in..... and hey presto it popped open.
In the W163 when you unlock all the doors you can open the tailgate, then close it and all the car locks again so it is very easy to lock your keys in it, but if you open one of the other doors it all remains unlocked when you close the tailgate
Save 30% on RAC Breakdown Cover This year...next year... and every year you stay with RAC Prices start from only £35.35* This offer is available to all MERCEDES CLUB members and their immediate family**