S40 T5 L5-2.5L Turbo VIN 68 B5254T3 (2006)
With a mirror, inspect the sound trap exit condition and water flow.
Note the shape and location of the sound trap.
You can place your finger(s) on the tip of the sound trap. It should be slightly higher than the opening in the sheet metal.
View of the sound trap exit.
A change to the sound trap has taken place (PN 30784158)
NOTE:
There is no part number change from the original, but the new sound traps have a length of 2 inches (52 mm) from bottom to flange to exit.