In the olfactometrical test, the interior of the assembled car is heated up with rays of heat, so that the smells of the processed materials can unfurl and combine inside the closed passenger compartment. The experts take a sample from the air inside the vehicle which is fed into an olfactometer, a special device for measuring smells. The sample is diluted with pure air, which has no smell, throughout the test cycle - at first with large amounts, thereafter with ever-decreasing amounts - and is smelt by the experts. "With this method of testing, we can measure at what point and to what extent the smell in the interior is registered," explains Schempp. Mercedes-Benz models cannot be made completely free of smell or made to smell all the same, as the interior appointments and materials composition are different in every model.
The job of Claudia Schempp and her colleagues is to meet the demanding challenge of creating as neutral a vehicle smell as possible. "Climb in and feel good - from the very first breath. That's what we're aiming to give our customers"