Now I can't believe this is right, but I'd appreciate others trying this and seeing what happens....
My brakes work just fine. No issues whatsoever. I know what spongy brakes feel like from servicing and bleeding brake systems for 20 years - however this is a new one on me....
Whilst sitting stationary at the lights or at a junction with my foot on the brake to keep the car still (DSG gearbox.....), I've discovered that if I gradually apply more pressure to the pedal, I can gradually press it further and further down, until the pedal is actually against the floor.
Now all my knowledge of hydraulic systems and "normal" brake systems tells me this is impossible, unless there's a massive amount of air in the system, but the brakes don't act like that when driving on the move.
The pedal doesn't "pump up" like you'd expect with air in the system.
The brake fluid was repalced at the 2-year service by the dealer, so they have been "fiddled with" since new, but that was just beforfe I bought the car, so I don't know what they were like before.
Can someone else please try this and see what happens? Is it just a feature of the ABS/EBD systems fitted to the car or have I something to worry about?