We have speed bumps in our neighborhood. Occasionally, when slowly crawling over the speed bumps, the idle drops, sometimes *almost* stalls, the ABS dash light comes on or flickers, then goes away after I slightly press on the accelerator pedal.

I realize crawling over the speed bump puts a load on the engine, but the RPMs shouldn't drop to the point where the car feels like it will stall. For example, when driving on the hills of San Francisco, the S6 creeps uphill when I take my foot off of the brake pedal while waiting at a red light.

Anybody else experience this? I've got an appointment with the dealer on Tuesday.

TIA