3 Series E36 325tds (M51) SAL
17 00 039
Bleeding cooling system and checking for
water leaks
Top up cooling system, bleed cooling system,
refer to 17 00 005
Check cooling system for water tightness,
refer to 17 00 009
Set heater control to maximum temperature and set fan to low
speed. This opens heating valves and installed auxiliary water
pump runs if necessary. Run engine and flush out engine cooling
circuit with three or four short bursts of throttle (approx. 4500 to
5000 rpm) (sealing cap open). While doing so, do not run engine
for longer than approx. 30 sec. to prevent coolant from heating up
and expanding. If coolant level in expansion tank drops during
this, top up expansion tank to the brim with coolant. Attach screw
cover and run engine to heat it up until thermostat opens.
Caution!
Danger of scalding!
Safety information: Only open sealing cap when engine is cooled
down.
Separate expansion tank
To check coolant level, allow engine to cool down; coolant
temperature may not exceed 30
°
C. If ambient temperature is
above 30
°
C, then allow engine to cool down at least to ambient
temperature.
Check coolant level and top up coolant if necessary until liquid
level is at marking on expansion tank.
Note:
Tank mark indicates the fluid level at approx. 20
°
C.
Use only recommended coolant, refer to
BMW Service Operating Fluids Main Group 17.
RA Bleeding cooling system and checking for water leaks
BMW AG - TIS
08.02.2013 12:51
Issue status (12/2007) Valid only until next DVD is issued
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