21 53... Checking/topping up fluid level in hydraulic system (GS6S37BZ/GS6S53BZ/ SMG)
WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
- 00 2 080 . See MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS .
IMPORTANT:
There are 2 different methods of checking/topping up the fluid level.
IMPORTANT:
Use special tool exclusively
for filling hydraulic systems with Pentosin.
Method 1:
- Switch on ignition.
- Bleed hydraulic system in accordance with BMW diagnosis system.
- Open filler screw (1).
- Fill expansion tank with special tool 00 2 080 up to MAX mark.
Hydraulic fluid for clutch hydraulics. See CLUTCH - OPERATING FLUIDS .
Method 2:
- Depressurize hydraulic system in accordance with BMW diagnosis system.
- Open filler screw (1).
- Fill expansion tank with special tool 00 2 080 up to lower edge of filler opening.
Hydraulic fluid for clutch hydraulics. See CLUTCH - OPERATING FLUIDS .