Volvo S90 Owner's Manual page 590

MAINTENANCE AND SERVICE
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Rear fog lamp on left-hand side
Lamp housing on left-hand side.
1. Undo the bulb holder by turning it a quarter
turn anticlockwise and pulling it out.
2. Remove the blown bulb from the bulb holder
by pressing it in and turning anticlockwise.
3. Fit a new bulb by pressing it in and turning it
clockwise.
4. Wipe the bulb's lens clean of any dirt, grease
or moisture.
5. Attach the bulb holder by turning it a quarter
turn clockwise.
6. Fold back the panel and refit the hinge's
plastic guard as well as the other parts in
reverse order.
588
Rear fog lamp on right-hand side
Cars with the rear fog lamp on the right-hand
side have a cover over the bulb holder - which is
why there are several additional steps before the
bulb can be replaced.
Lamp housing on the right-hand side with cover.
1. Detach the cable that is routed in through
the cover's opening by pressing in the catch
on the side of the connector and pulling at
the same time.
2. Unscrew the cover using a Torx T25 screw-
driver and place the cover and screw to one
side.
Lamp housing on right-hand side.
3. Detach the bulb holder by turning it a quarter
turn anticlockwise.
4. Pull out the bulb holder.
5. Remove the blown bulb by pressing it in and
turning anticlockwise.
6. Fit a new bulb by pressing it in and turning it
clockwise.
7. Wipe the bulb's lens clean of any dirt, grease
or moisture.
8. Attach the bulb holder by turning it a quarter
turn clockwise.
9. Realign and screw in the cover.
10. Fold back the panel and refit the hinge's
plastic guard as well as the other parts in
reverse order.