Insulating Wall for a Motor Vehicle, and Motor Vehicle Having an Insulating Wall

An insulating wall for a motor vehicle is designed to separate an engine compartment of the motor vehicle from a passenger compartment of the motor vehicle such that sound is damped and/or thermal insulation is provided. The insulating wall has a first component, which has an insertion groove and has an insulating material, and a second component, which has an insulating material and which is inserted into the insertion groove in an insertion direction and clamped in the insertion groove.