Volvo 850 Manual page 101

Press in spring catch (4-door)
Pull backwards/downwards (5-door)
High-level brake lights (certain markets)
4-door model
Turn the ignition key to position 0.
Press in the two catches.
Pull the cover backwards.
Press in the catches on the reflector.
Replace the bulb.
Refit the reflector. Check that the light works before refitting the
cover.
Press in the catches (4-door)
5-door model
Turn the ignition key to position 0.
Use both hands to grip the sides of the cover and pull the cover
backwards/downwards.
Remove the protective plate.
Remove the bulb by pressing inwards and turning a few millimetres
anti-clockwise.
Insert a new bulb and refit the protective plate. Before refitting the
cover, check that the light works.
Bulb replacement
Remove the protective plate (5-door)