X Series E53 X5 3.0d (M57TU) OFFRD
Important!
Risk of damage: Use only nitrogen pressure bottles with
pressure reducers for leak-testing.
Pressurize evaporator to 15 bar slowly only. Excessively fast
pressurization and pressures in excess of 20 bar may cause
damage to the evaporator.
Connect nitrogen pressure bottle with pressure reducer to
pressure gauge and then connect to special tool 64 5 104
(connecting hose).
Note:
-
Testing apparatus must be leakproof.
-
Ambient temperature and temperature of vehicle must not
change during the test procedure.
-
Do not move the vehicle during this period
Slowly apply test pressure of 15 bar and close nitrogen pressure
bottle.
Check leak-tightness of testing apparatus and of connection to
refrigerant line.
Set test pressure of 15 bar is only permitted to drop by 2 bar to
13 bar over a test period of 2 hours.
If the pressure loss is greater than 2 bar, this indicates that there
is a leak in the evaporator unit with expansion valve.
RA Leak-testing evaporator
BMW AG - TIS
05.02.2013 16:48
Issue status (12/2007) Valid only until next DVD is issued
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