i asked tom if hes old ed 30 did it and he said not. im sure there was plenty of times he dived on the brakes too!
mine doesnt do this. dont want it too either!
It's an excellent feature as it really draws you attention to the car in front. The flashing brake lights on the Merc should be law IMHO as it really alerts you to the fact that its an emergency stop, particularly on the motorway at high speed.
Is this a feature than can be switched on using VAGCOM or does it require an update to control module too (hence why it's on newer models?) as I would be keen to enable something like this - along with the fog lights acting as turning lights - but thats a different can of worms.