Cooling System - Coolant Breather Hose Information

Coolant System: Replacement/Reconditioned Engines Without Breather Hose

Vehicle Type:
Boxster (986)/Boxster S (986)
Boxster (987)/Boxster S (987)

Model Year:
As of 1997 up to 2006

Concerns:
Breather hose between coolant reservoir and heat exchanger (engines M96.20, M96.21, M96.22, M96.23, M96.24, M96.25, M96.26)

Information:
Replacement/reconditioned engines without breather hose

INFORMATION: If the engine in a vehicle is replaced with a replacement or reconditioned engine, the coolant breather hose between the coolant reservoir and oil/water heat exchanger must remain installed on the vehicle.

Work Procedure:





1 The breather hose must be removed at the heat exchanger (--> Figure 1 -item A-) after the engine is removed from the vehicle.

2 The removed breather hose must be reinstalled on the new engine (replacement or reconditioned engine), which will be installed in the vehicle.

If the new engine comes pre-fitted with a breather hose, this must be replaced with the removed breather hose.





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