300SD (140.134) L6-3.5L DSL Turbo (603.971) (1993)
NOTE: Use new O-rings (2, 6) (coat with compressor oil) to install the test adapter.
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Screw for expansion valve
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Models 129, 140, 168, 170, 202, 208, 414: 8 N.m
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Model 220, 461, 463: 10 N.m
3
Connect tester to test adapter (1)
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Air conditioning leak detector
See "Commercially Available Tools" given below.
4
Check evaporator for leakage
NOTE: Apply maximum pressure of 20 bar to evaporator. Constant pressure must be maintained for at least 10 min.
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If in bad condition, Remove/install evaporator.
5
Install in the reverse order.
Special Tools
Test Adapter, P/N# 140 589 51 63 00
Commercially Available Tools
Commercially Available Tools