24 00 ... Topping Up Fluid Additive In Event Of Friction Coefficient Fluctuations During Gearshifts From 3rd To 4th And 4th to 3rd (6HP26)

Special tools required: 

• 00 2 080

Necessary preliminary tasks: 

• Raise vehicle
• Remove transmission underbody protection if necessary
• For safety reasons (danger of burning), allow transmission fluid to cool down to a temperature below 40 °C
• Read out transmission fluid temperature with Diagnosis and Information System (DIS)

The following procedure applies to replacing 1 litre of ATF with 1 litre of LifeGuardFluid One additive.

BMW part number: 83 29 0 422 194

A distinction must be made here between transmissions with plastic oil sumps and sheet metal oil sumps!

1. Transmission with plastic oil sump: 

   When engine is stopped, open 8 A/F transmission filler plug (1) and drain off 1 litre of transmission fluid.

   Catch transmission fluid in a measurement container.

   Fig 1: Identifying Filler Plug

   Courtesy of BMW OF NORTH AMERICA, INC.

   Start engine and allow engine to idle in with selector lever in P position.

   Pour in 1 litre of ZF LifeGuardFluid One additive with special tool 00 2 080. 

   Screw in transmission filler plug.

   Installation: 

   Tightening torque: 35 Nm.

   Attach the notice sticker supplied with the bottle to the side of the oil sump  next to the fluid filler plug.

   Then carry out a FLUID LEVEL ADJUSTMENT  to exclude the possibility of minimum filling.

Fig 2: Identifying Selector Lever
Courtesy of BMW OF NORTH AMERICA, INC.
2. Transmission with sheet metal oil sump: 

   When engine is stopped, open transmission filler plug in dome of oil sump (17 A/F hexagon socket head cap screw) and drain off 1 litre of transmission fluid.

   Catch transmission fluid in a measurement container.

   Fig 3: Locating Transmission With Sheet Metal Oil Sump

   Courtesy of BMW OF NORTH AMERICA, INC.

   Start engine and allow engine to idle in with selector lever in P position.

   Pour in 1 litre of ZF LifeGuardFluid One additive with special tool 00 2 080. 

   Screw in transmission filler plug.

   Installation: 

   Tightening torque: 80 Nm.

   Attach the notice sticker supplied with the bottle to the back  of the oil sump next to the fluid filler plug.

   Then carry out a FLUID LEVEL ADJUSTMENT  to exclude the possibility of minimum filling.

   Fig 4: Identifying Selector Lever

   Courtesy of BMW OF NORTH AMERICA, INC.