Service Information bulletin: Specifications for Operating Fluids for automatic transmission

 We hereby inform you about current changes to the Specifications for Operating Fluids:

5-speed automatic transmission 722.6:

Only transmission oil as per Specifications for Operating Fluids Sheet 236.14 may be used.

7-speed automatic transmission 722.9 except codeA89

Only transmission oil as per Specifications for Operating Fluids sheet 236.14 may be used.

7-speed automatic transmission 722.9 with codeA89

Only transmission oil as per Specifications for Operating Fluids Sheet 236.15 may now be used.

7-speed automatic transmission 724.2

Only transmission oil as per Specifications for Operating Fluids Sheet 236.15 may now be used.

9-speed automatic transmission 725.0/1

Only transmission oil as per Specifications for Operating Fluids Sheet 236.17 may now be used!

Exception:

Transmission 722.6 may not be filled with FE­ATF 134 and ATF D97.

 The following control features and information must be observed to ensure that 7-speed automatic transmission 722.9 is filled correctly.

The diagnostics system displays a message referring to the specified transmission oil before reading out the transmission oil temperature.

Transmission 722.9 can be identified by the differently shaped oil pan (see picture 1 and picture 2).

A documentary film of the filling process is available in AKUBIS direct and WSM (WIS Service Media.

 Separate filling units must be used for all oils (236.14, 236.15, 236.17)
because these oils must never be mixed with other oils.

Exception:

Transmission 722.6/9, the associated electrohydraulic controller units and torque converters, which are available as a replacement part, are checked at the production plant using FE ATF-134 only. It is therefore possible that these parts have residual traces of FE ATF-134. In this case, the transmission, controller unit and torque converter do not have to be cleaned. The transmission can be filled with the corresponding gear oil (as per this SI) immediately after it has been installed.

 The modified Specifications for Operating Fluids are available in the table, the corresponding BB documents in the WIS or the BeVo Portal on the Internet at:

http://bevo.mercedes-benz.com

for viewing.

Figure 1:
Old oil pan (with rounded contours)
Transmission 722.9 up to transmission component serial number 2834526

P00.40-2027-01

Fig. 2:
New oil pan (with larger contours, of which two are oval)
Transmission 722.9 as of transmission component serial number 2834527

P00.40-2028-01