Checking/Topping Up Fluid Level In Automatic Transmission (A5S 360R/390R, A4S 200R/310R)

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NOTE: Numbers in text refer to numbers in figures.

CAUTION: Use only the approved transmission fluid in this automatic transmission. See RECOMMENDED FLUID . Failure to comply with this requirement will result in serious damage to the automatic transmission. Refer also to adhesive label on transmission fluid sump.

Move selector lever to park position "P". The vehicle must be horizontal and secured against rolling off.

Connect BMW Diagnosis and Information System (DIS) or BMW MoDiC to vehicle. Release filler plug (1). See Fig 1 . Top up automatic transmission fluid until overflowing. Screw in filler plug (1) by hand. Start engine and run at idle speed. Actuate brake and shift through all gears at idle speed. Open filler plug (1) again. Increase temperature of transmission fluid to 30-50°C. Interrogate temperature of transmission fluid with MoDiC or DIS. Top up automatic transmission fluid until overflowing. Screw in filler plug (1).

Fig 1: Removing Filler Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: check sealing ring on filler plug (1) for damage and, if necessary, replace sealing ring and filler plug. Tighten to specification. See TORQUE SPECIFICATIONS .