No. 241-22

Service
Technical Information
241/22 ENU
1975
1
Traces of Coolant Close to the Coolant Reservoir or Under the Vehicle (241/22)
Model Line:
718 Boxster (982) / 718 Cayman (982)
911 (992)
Model Year:
As of 2022
Concerns:
Coolant reservoir cap
Cause:
Due to traces of coolant found under the vehicle or in the area of the coolant reservoir, the cap of the
coolant reservoir or, in rare cases, the entire coolant reservoir is often replaced.
Analyses of the rejected components have shown that these parts were mostly found to be without
defects.
Information
Coolant leaking in this area  Traces of coolant -Arrows- is often due to a correct release of excess
pressure through the cap.
This can occur, for example, due to heat or strong
movement of the vehicle during loading and transportation
on a ship. For this reason, some of the incidents are
already noticed during the handover inspection as part of
the sales check.
Traces of coolant
Action required: If traces and residues of coolant can be seen, then the cooling system must be checked before replacing
the cap or other components. For work procedure, see:  Workshop Manual '190101 Checking cooling
system'
The cooling system test involves the following:
AfterSales
Dec 19, 2022
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Service
Technical Information
ENU 241/22
1975
•
•
Leak-testing the cooling system
Check coolant level and antifreeze content. Too high a coolant level can also lead to coolant leaking
via the sealing cap.
Function and leak test on the cap
•
If the leak test shows no leakage from the cooling system, remove any coolant residue with a clean cloth.
These traces and residues of coolant do not constitute a defect with regard to the tightness of the cooling
system and do not entitle the user to replace the sealing cap.
Invoicing
Invoicing:
For documentation and invoicing in the event of a warranty, state the work items required depending on
the scope of work and the specified PCSS encryption in the warranty claim:
APOS
Labor operation
19010150
Checking cooling system
I No.
PCSS encryption:
Location (FES5)
19750
Coolant reservoir cap
Damage type (SA4)
5014
Coolant leak
References:
 Workshop Manual '190101 Checking cooling system'
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.
© 2022 Porsche Cars North America, Inc.
Dec 19, 2022
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