Thermostat: Service and Repair

11 53 000 Removing And Installing Or Replacing Coolant Thermostat (N16)

Special tools required:







WARNING:
Risk of scalding.
Only perform these tasks on an engine that has cooled down.
Danger of injury.
Risk of slipping due to coolant on the floor.







Recycling:
Catch and dispose of drained coolant.
Observe country-specific waste disposal regulations.

IMPORTANT:
Read and comply with General Information.
Protect plug connections against coolant and contamination.
Cover plug connections with suitable materials.







Necessary preliminary tasks:
- Drain coolant from radiator.
- Remove intake silencer housing with intake pipe.







Release lock (1) on coolant pipe in direction of arrow.







Disconnect plug connection (1) on coolant thermostat.







Detach all coolant hoses from thermostat.

NOTE: Release metal hose clamps with special tool 17 2 050.

Slacken nut (2).
Release screws (3).
Tightening torque: 11 53 1AZ.

NOTE: Pictures show N12.







Installation note:
Replace gasket (1).







Assemble engine.
Fill cooling system and check for tightness.