here is an exerpt from an email sent to me privately from Aamilne99 regarding removing the headliner on a W124...I know you asked about the W140
but hopefully its not too different. If you know someone with a 89-95 eclass take a look inside and see how similiar/different they are
[QUOTE]Remove the centerpost covers and seatbelts. I had both front seats out...more room!
Remove the rearview mirror by pulling down hard on it...it will come out!
Open sunroof and unscrew all the tiny phillips screws holding the front trim strip.
Remove rear quarter panels between seattop and rear window.