Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Maintenance Required Lamp/Indicator: Service and Repair



Diagnosis Maintenance: Resetting Diagnostic System And Maintenance Interval

Reading out fault memory







Porsche System Tester is connected to the vehicle via a 16-pin diagnostic socket. The diagnostic socket is located inside the vehicle below the dashboard near to the driver (left-hand drive vehicles) or the passenger (right-hand drive vehicles) -arrow-.

1. Start Porsche System Tester (PST) and follow the instructions on the Tester.
2. Select vehicle type with ">>" and perform the automatic control unit search.
3. If a "#" star appears in front of the relevant control unit, read out the fault memory. Follow the instructions of the PST.

Resetting maintenance interval

Resetting service reminder

NOTE: If the engine oil is replaced during a service, the service reminder must be reset.

1. In the Porsche System Tester, select "Instrument cluster" menu ">>".
2. Select "Coding" menu ">>".
3. Select "Reset service reminder indicator" menu ">>".

NOTE: Depending on the country, additional items are checked in the case of the V6 model. These items must be selected on a country-specific basis.

4. Select "Reset" menu and confirm with "F8"
5. Quit menu, shut down PST and disconnect from vehicle.