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10.6.10
Check condition of battery and enable high voltage system added
22.9.10
Information on required radio code on vehicles with code (527) High-
Line radio, added
13.1.11
Adaptation of audio settings added
Remove/install
Risk of explosion caused by
oxyhydrogen gas. Risk of poisoning
and caustic burns caused by
swallowing battery acid. Risk of injury
caused by burns to skin and eyes from
battery acid or when handling damaged
lead-acid batteries
Risk of death when touching
components on vehicles with high-
voltage system
Note on high-voltage battery
Note on high-voltage system
Notes on battery
Notes on AGM battery
On vehicles with code (527) High-
Line radio, before the ground line (1) is
disconnected, it must be ensured that the
radio code is available to allow the radio
to be put into operation at a later stage.
Check condition of battery (G1), if
1
necessary replace battery (G1)
Carry out disconnection of high-voltage
2
system
No fire, sparks, open flames or
smoking. Wear acid-resistant gloves,
clothing and glasses. Only pour battery
acid into suitable and appropriately
marked containers.
Do not touch components and open
lines of high-voltage system. Persons
with electronic implants (e.g. cardiac
pacemakers) must never work on high-
voltage systems.
Model 451.391/491
Model 451.391/491
Model 451.334/380/480
Only with model 451.391/491 if during
the further course of work, work is to
be conducted on the high voltage
vehicle electric system.
The high voltage system cannot be
enabled if the battery (G1) is defective:
Before replacing the battery (G1) on
model 451.391/491 no further work
may be performed on the high-voltage
vehicle electrical system.
Only with model 451.391/491 if during
the further course of work, work is to
be conducted on the high voltage
vehicle electric system.
Steps 1 and 2
Step 9
AS54.10-Z-
0001-01A
AS54.00-Z-
0001-
02MEV
AH54.10-P-
0006-
01MEV
AH54.00-P-
0011-
01MEV
AH54.10-P-
0001-01A
AH54.10-P-
0002-
01MCC
AR54.10-P-
1129MCC
AR54.10-P-
1160MEV
AD00.00-P-
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