Disclaimer2020 Porsche Boxster S (986) F6-3.2L Technical Service Bulletin # 131/08 Date: 081017
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:
2020 Porsche Boxster S (986) F6-3.2L Page 229
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.