A vehicle headliner assembly comprising a plurality of mounting brackets, each mounting bracket having a three-dimensional shape comprising a base plate and a protruding portion comprising a plurality of wall sections, and further comprising a headliner, wherein - the mounting bracket has an omega-shaped cross-section; - the plurality of wall sections comprises a first pair of wall sections (w3, w4) facing away from the base plate; and - the plurality of wall sections comprises a second pair of wall sections (w2, w5), wherein the vehicle headliner assembly further comprises - a plurality of connectors connected to the headliner for engaging with said plurality of brackets, wherein said connector comprises two flexible members (23, 24); characterized by - the first pair of wall sections (w3, w4) defining between said first pair of wall sections an angle (α3,4) in the range from 30° to 50° for pushing apart said two flexible members (23, 24) of said connector when said headliner is being pushed towards the base plate; and - the second pair of wall sections (w2, w5) defining between said second pair of wall sections an angle (α2,5) in the range from 80° to 100° for holding the headliner by retaining said flexible members (23, 24) of said connector in a releasable manner, wherein - the flexible members (23, 24) of the connectors comprise a first pair of wall sections (w11, w12) for abutting the first pair of wall sections (w3, w4) of the mounting bracket; - the flexible members (23, 24) of the connectors comprise a second pair of wall sections (w13, w14) for abutting the second pair of wall sections (w2, w5) of the mounting bracket; and - the wall sections (w11, w12) of the first pair and the wall sections (w13, w14) of the second pair form two V-shapes for clamping the mounting bracket between them. - the mounting bracket has an omega-shaped cross-section; - the plurality of wall sections comprises a first pair of wall sections (w3, w4) facing away from the base plate; and - the plurality of wall sections comprises a second pair of wall sections (w2, w5), wherein the vehicle headliner assembly further comprises - a plurality of connectors connected to the headliner for engaging with said plurality of brackets, wherein said connector comprises two flexible members (23, 24); characterized by - the first pair of wall sections (w3, w4) defining between said first pair of wall sections an angle (α3,4) in the range from 30° to 50° for pushing apart said two flexible members (23, 24) of said connector when said headliner is being pushed towards the base plate; and - the second pair of wall sections (w2, w5) defining between said second pair of wall sections an angle (α2,5) in the range from 80° to 100° for holding the headliner by retaining said flexible members (23, 24) of said connector in a releasable manner, wherein - the flexible members (23, 24) of the connectors comprise a first pair of wall sections (w11, w12) for abutting the first pair of wall sections (w3, w4) of the mounting bracket; - the flexible members (23, 24) of the connectors comprise a second pair of wall sections (w13, w14) for abutting the second pair of wall sections (w2, w5) of the mounting bracket; and - the wall sections (w11, w12) of the first pair and the wall sections (w13, w14) of the second pair form two V-shapes for clamping the mounting bracket between them.