Mercedes-Benz S 500 Operator's Manual page 121

Testing Infrared Remote Control
Checking Batteries:
If the transmit button (1) is pressed
longer than 1 second, the battery
indicator lamp in the transmitter eye (2)
briefly illuminates -indicating that the
batteries are in order.
Change batteries if the indicator lamp
does not come on.
Changing Batteries:
Unfold key from holderby pressing
lock button (3). Pull off battery cover
(4).
Change batteries, inserting new ones
under contact spring (5) with plus (+)
side facing up.
Press battery cover onto housing until
locked in place.
Important!
Batteries contain materials that can
harm the environment if disposed of
improperly. Recycling of batteries is
the preferred method of disposal. For
disposal, please follow manufacturer's
recommendation on battery package.
Replacement battery:
Lithium, type CR 2025 or equivalent.
Synchronizing System:
The system may have to be re-
synchronized, if the transmitter is
without voltage for several minutes.
To synchronize system, aim transmitter
(2) at a receiver (5) and briefly press
transmit button (1). Within approx. 30
seconds, lock or unlock the car at a
door or the trunk using the master key.
The infrared remote control should
once again be operational.
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