15BGA 85
: Hold the torsion spring (1) down 
and engage it behind the 
retaining lug (arrow).
– Positioning the locking lever:
The grip (1) faces the compartment 
opening, the retaining edge (2) 
points into the battery compartment.
: Fit one locking lever pivot pin in 
the bearing point (arrow). 
Stop (1) outside the guide.
Both ends (2) of the torsion spring 
face outwards. 
3905RA016 AM
1
3905RA017 AM
1
2
3905RA018 AM
1
2
2
: Carefully ease the bearing points 
apart (arrows) and fit the second 
pivot pin (1) in the second 
bearing point (2).
: Engage the two ends (1) of the 
torsion spring behind the 
guides (2).  
– Check that both locking levers 
move freely.
– Reassemble all other parts in the 
reverse sequence.
3905RA019 AM
2
1
3905RA020 AM
1
2
7.4 Spring
Removing
– Remove the cover if necessary, 
b 7.2
: Squeeze the spring (1) together, 
disengage it from the retaining 
lugs (2) and pull it out in the 
direction of the compartment 
opening. 
– Check the spring and replace it if 
necessary
Installing
: Push the spring (1) inwards 
between the guides (2) and fit it in 
the retainer (3).
3905RA021 AM
2
1
3905RA022 AM
1 2
2
3