No. 173-21
Service Bulletin Details
Public Details for: No. 173-21
Technical information for a warning message "coolant temperature too high" - checking coolant pump and change-over valve.
- 2022 - 2021 - 2020 - 2019 - 2018 - 2017 -
Models from 2022
2022 PORSCHE PANAMERA |
Models from 2021
2021 PORSCHE PANAMERA |
Models from 2020
2020 PORSCHE PANAMERA |
Models from 2019
2019 PORSCHE PANAMERA |
Models from 2018
2018 PORSCHE PANAMERA |
Models from 2017
2017 PORSCHE PANAMERA |
Service Technical Information 173/21 ENU 1950 1 Warning Message "Coolant Temperature Too High": Checking Coolant Pump and Change-Over Valve (173/21) Model Line: Panamera (971) Model Year: As of 2017 Concerns: Change-over valve for coolant pump Information: The customer complains about a warning message 'Coolant temperature too high'. A faulty coolant pump is detected as the cause. Internal tests have shown that in some cases, the cause of a faulty coolant pump is due to a faulty change-over valve in the coolant pump. Action required: If the coolant pump is faulty or leaking, also check the change-over valve for the coolant pump and replace it if necessary. Required tools, parts and materials Tool: • • • 9900 - PIWIS Tester 3 Hand vacuum pump, e.g. VAS 6213 - Hand vacuum pump Battery charger with a current rating of at least 90 A and - if required - also with a current and voltage controlled charge map for lithium starter batteries, e.g. VAS 5908 90A battery charger For further information about the battery chargers to be used, see the corresponding Workshop Manual. Workshop Manual '270689 Charging vehicle electrical system battery' Parts Info: Parts required for V6 engine Part No. Designation – Location Number PAB906283 Change-over valve – Coolant pump 1 ea. and/or 9A712101304 Coolant pump 1 ea. Parts required for replacing the coolant pump: 9A712111903 Seal – Coolant pump 1 ea. 9A712117100 Sealing ring – Coolant pipe above coolant pump 1 ea. AfterSales Dec 23, 2021 Page 1 of 6 1 Service Technical Information ENU 173/21 1950 9A700565200 O-ring (17 x 3) – Coolant pipe above coolant pump 1 ea. 9A712143713 Sealing ring (41.8 x 1.85) Disconnect coolant pipe for coolant pump 1 ea. 9A700792000 O-ring (31.34 x 3.53-N) Disconnect coolant pipe for coolant pump 1 ea. Parts required for V8 engine Part No. Designation – Location Number 06H906283B Solenoid valve – Coolant pump 1 ea. and/or PAB121014C Coolant pump 1 ea. Parts required for replacing the coolant pump: Materials: 9A712168800 Sealing ring – Coolant regulator housing 1 ea. 97112113900 Sealing ring – Coolant regulator housing 2 ea. 9A700780900 O-ring (80 x 4) – Coolant regulator housing 1 ea. 9A700781400 O-ring (55 x 5.33) – Coolant regulator housing 1 ea. Required materials (usually already available at the Porsche dealer): Part No. 00004330501 00004330516 Designation – Location Lubricant – O-rings Coolant additive Quantity 5 grams/ 0.18 oz 0.5 liter/ 16.9 fl oz Preparatory work Work Procedure: 1 2 Dec 23, 2021 Page 2 of 6 Remove air guide . Workshop Manual '243619 Removing and installing air guide (V8 biturbo)' or Workshop Manual '243619 Removing and installing air guide (V6 turbo)' Remove belt pulley. Workshop Manual '195319 Removing and installing pulley (V6 turbo)' AfterSales Service Technical Information 173/21 ENU 1950 1 3 Connect a suitable battery charger with a current rating of at least 90 A, e.g. battery charger 90A, to the jump-start terminals in the luggage compartment and switch it on. Workshop Manual '270689 Charging vehicle electrical system battery' 4 Place driver's key in emergency start tray 5 9900 - Connect PIWIS Tester 3 to the vehicle communication module (VCI) via the USB cable. Then connect the communication module to the vehicle and switch on the PIWIS Tester. 6 Switch on ignition. 7 On the PIWIS Tester start screen, call up the 'Diagnostics' application. The vehicle type is then read out, the diagnostic application is started and the control unit selection screen is populated. AfterSales Emergency start tray Dec 23, 2021 Page 3 of 6 1 Service Technical Information ENU 173/21 1950 Checking change-over valve for coolant pump and replacing it if necessary Work Procedure: Position of change-over valve and coolant pump 1 Pull vacuum hose Position of change-over valve and coolant pump -1- off the coolant pump Position of change-over valve and coolant pump -2-. 2 Pull off vacuum hose Position of change-over valve and coolant pump -4- from the control valve Position of change-over valve and coolant pump -3-. 3 VAS 6213 - Hand vacuum pump must be Position of change-over valve and coolant pump -3connected to the change-over valve Position of change-over valve and coolant pump -4- on the vacuum hose connection. Then build up vacuum. Information Stop the test procedure if a vacuum cannot be built up. In this case, the change-over valve is faulty and must be replaced. Continue with Step 5. If a vacuum can be built up, continue with Step 4. 4 Perform drive link test: 4.1 Dec 23, 2021 Page 4 of 6 Select Engine electronics (DME) control unit. AfterSales Service Technical Information 173/21 ENU 1950 4.2 Select the Drive links/checks menu. 4.3 Select Drive links and press •F12“ Next to confirm. 4.4 Select 'Activation of vacuum switchover valve for main coolant pump' and press •F8“ to start. • • 1 If the vacuum in the vacuum pump display changes, the change-over valve -3- is intact. Continue with Step 4. In this case, only -2- replace the coolant pump if it is faulty. If the vacuum in the vacuum pump display does not change, the change-over valve -3- and the coolant pump, if necessary, must be -2- replaced if the coolant pump is -2- also faulty. Workshop Manual '195019 Removing and installing coolant pump (V8 biturbo)' or Workshop Manual '195019 Removing and installing coolant pump (V6 biturbo)' 5 VAS 6213 - Hand vacuum pump must now be disconnected from the vacuum hose -1-. 6 Install vacuum hose -1- on coolant pump -2-. Concluding work Work Procedure: 1 Switch off ignition. 2 9900 - PIWIS Tester 3 must now be disconnected from the vehicle. 3 Remove the driver's key from the emergency start tray. 4 Switch off and disconnect the battery charger. 5 Install belt pulley Workshop Manual '195319 Removing and installing pulley (V6 turbo)' 6 Install air guide. Workshop Manual '243619 Removing and installing air guide (V8 biturbo)' or Workshop Manual '243619 Removing and installing air guide (V6 turbo)' AfterSales Dec 23, 2021 Page 5 of 6 1 Service Technical Information ENU 173/21 1950 Invoicing Invoicing: For documentation and invoicing in the event of a guarantee, state the work items required depending on the scope of work required and the specified PCSS encryption in the warranty claim: I No. APOS Labor operation 19505520 Check change-over valve and replace coolant pump (V6 engine) 19505521 Check change-over valve, replace change —over valve and coolant pump (V6 engine) 19505530 Check change-over valve and replace coolant pump (V8 engine) 19505531 Check change-over valve, replace change —over valve and coolant pump (V8 engine) PCSS encryption: Location (FES5) 19500 Coolant pump Damage type (SA4) 5000 Leakages References: Workshop Manual '270689 Charging vehicle electrical system battery' Workshop Manual '243619 Removing and installing air guide (V6 turbo)' Workshop Manual '243619 Removing and installing air guide (V8 biturbo)' Workshop Manual '195319 Removing and installing pulley (V6 turbo)' Workshop Manual '195019 Removing and installing coolant pump (V6 biturbo)' Workshop Manual '195019 Removing and installing coolant pump (V8 biturbo)' 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. © 2021 Porsche Cars North America, Inc. Dec 23, 2021 Page 6 of 6 AfterSales