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Home >> Mercedes Benz >> 2019 >> CLS450 Base >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - 257 Chassis >> Testing & Repair >> Coolant Thermostat Tightening Procedure - AR20.10-P-2461-01MRT

Coolant Thermostat Tightening Procedure - AR20.10-P-2461-01MRT

Engine 256.9 

COOLANT THERMOSTAT, COOLANT PUMP

Number Designation Engine 256
BA20.10-P-1001-01MRT Screw/bolt, coolant thermostat to crankcase Nm 8
ENGINE RADIATOR, COOLANT HOSES AND LINES

Number Designation Engine 256
BA20.20-P-1002-02MRT Screw, coolant connecting pipe to cylinder head Nm 8
Fig 1: Coolant Thermostat Tightening Sequence - Engine 256.9
G14548325Courtesy of MERCEDES-BENZ USA
  1. Manually slightly tighten screws (1 to 8) in numerical order.
  2. Tighten screws (1 to 7) in numerical order TORQUE SPECIFICATION .
  3. Tighten bolt (8) TORQUE SPECIFICATION .