See also:

Description of the kit
A. "Sealant" or "Air" position selector. B. On "I" / off "O" switch. C. Deflation button. D. Pressure gauge (in bar or p.s.i.). E. Compartment housing: - ...

Checks
Unless otherwise indicated, check these components in accordance with the servicing booklet and according to your engine. Otherwise, have them checked by a PEUGEOT dealer or a qualified workshop. ...

Oil filter
Replace the oil filter each time the engine oil is changed. Refer to the servicing booklet for details of the replacement interval for this component. ...