Losing Tyre Pressure - Alfa Romeo Giulietta Veloce 1.7 - 2018

[ricardo]

Have a bit of a problem which I am hoping some member can help me with.
My tyres which came with the car (Pirelli Cinturato P7 EcoImpact 225/40 R18 92W) are in good condition but are losing pressure. Pump them up  to (38 LB.) all round 'but' 2 days later they have dropped to 27-30LB. The tyre sensor is adjusted after pumping up and the caps firmly screwed home.
All I can think of is: rims have been damaged, tyre sensor..........? Do I go out and have 4 new tyres fitted? Thank you.

[giulia_veloce]

Submerge them in water and find the leaks
Any tyre place will have this available.

[xitsurf]

soapy water spray also is easier if you do not want to submerge. Spray with a good lather and wait, you will see bubble form after a few minutes from leak.
 Some rims need tubes..  my  Cromodora CD35 rims were for tube tyres ..   tubeless would of leaked.