Fuel - Idle Speed Air Valve Design Change

85mercedes01
TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERS


DATE: February, 1985 REF. NO.. 09/10

SUBJECT: MODIFIED IDLE SPEED AIR VALVE ENGINE 102.961

Figure 1A - Previous Version:

Figure 2B - Modified Version:

Since April 1984, the air passage (arrow, Figure 1) has been relocated from the idle speed air valve into the hose connection (7a, Figure 3).
Production Phase-In

Engine As of Chassis End Number

102.961 A082222
F021622

Figure 3 A - Previous Version B - Modified Version:

Repair Notes

If the idle speed air valve is replaced on vehicles with the previous version, proceed as follows:

The hose connection (7a) with vacuum line (a) and the flexible hose (1) without vacuum line should be installed. The vacuum line of the diaphragm pressure regulator should be connected to the vacuum line (a) of the hose connection (7a). Refer to Figure 3.
a Vacuum line to diaphragm pressure
regulator
1 Flexible hose
7 Hose connector, previous version

7a Hose connector, modified version
NOTE: The flexible hose (1) should be connected to the cone-shaped end of the hose connector (7a, Figure 3).
Parts Information

Part Name Part Number

Idle speed air valve 102 094 13 12

Hose connector 102 094 10 12

Flexible hose 102 094 58 82
(valve cover-air cleaner)


Time Allowance

02-0744 41 Idle Speed Air Valve, Repl. 0.5 hour (with Maint. or Repair Work)