Alfa Romeo Giulia GTA Owner's Handbook Manual page 126

110) Modifications or repairs to the electric
system that are not carried out properly
or do not take the system technical
specifications into account can cause
malfunctions leading to the risk of fire.
111) Only replace the light bulbs when the
engine is off and in a position that does not
interfere with traffic and lets you safely
replace them (see the description in the
"Replacement" paragraph). Also ensure
that the engine is cold, to prevent the risk of
burns.
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