mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Fuel Delivery and Air Induction|Fuel > < Engine - Long Crank Time Before Start/Misfire/Runs Rough|Page 3037
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Fig. 1

NOTE:  It is recommended to also test the thermo-time switch with an ohmmeter

B. Testing The Thermo-time Switch Above 15°C (59°F) Coolant Temperature

Test Procedure

98. Cold-start valve
99. Thermo-time switch

c) To terminal 50

NOTE:  Above 15°C (59°F) coolant temperature, the thermo-time switch can be tested only by using an ohmmeter.

Fuel Delivery and Air Induction|Fuel > < Engine - Long Crank Time Before Start/Misfire/Runs Rough|Page 3037