I've recently changed the interior of my w124 to another from a 85 model as it's dark green. It looks like Merc used several w201 parts in this year including the rear seats. http://mb.ilcats.ru/part/class/1/ccode/1/cat/15C/type/201/subtype/122/group/92/subgr//vers//imgno/1 The seatbelts for the rear (buckles) have to be much longer as there is no gaps in the seat. Despite looking at the Merc parts catalogue I can not find the correct part numbers. I am opening (soon to be pleading because I can't pass the MOT without them) that somebody with a w201 can do a small favour which is to push the two clips down, lift the lower seat and read off the part numbers. It may have to be an early 190 (85/86/87). TBH I don't know if Merc fitted rear seatbelts, however the pillar plastics have the gaps for them! Many thanks Andy
