911 Carrera 4 Cabriolet (996) F6-3.4L (1999)
Coolant Reservoir: Technical Service Bulletins
Coolant Expansion Tank - Replacing With Engine R&R
911(996)
8/99 1940
Binder - 1, Engine, Part 2
10-22-99
Coolant Expansion Tank
Vehicle Type:
911 Carrera (996)
Model Year:
As of 1999 (X)
Concern:
Replacing the coolant expansion tank when an engine is replaced.
Information:
A new type coolant expansion tank is installed in production as of February 23,1999 and VINs:
99 7 XS 62 5704, Coupe
99 7 XS 65 4287, Cabriolet
The new coolant expansion tank (part number, 996 106 147 55) prevents false illumination (flashing) of the coolant warning light when the volume of
coolant fluctuates in the expansion tank. When replacing an engine on vehicles prior to the above VINs, the new type coolant expansion tank should also
be installed.
The new coolant expansion tank can also be installed (on vehicles produced prior to the above VINs) for repeated complaints of coolant light flashing
when there are no indications of overheating or coolant leaks.
Note:
A thorough bleeding must be performed to ensure no residual air pockets exist in the cooling system.
Parts Information
Part Number
Description
996 106 147 55
New/Coolant expansion tank
996 106 147 54
Former/Coolant expansion tank, no longer available
Literature
911 Carrera (996) Technical Manual, Group 1 - Engine, Filling in coolant and bleeding, pages 19-2 to 19-4