I am also looking for some help on a Cabrio. I have already been to the house to diagnose. When I put it through test mode it made some wierd noises after filling. So what ur customer is hearing could be normal. Below is from the service manual:
Noisy, vibrating, off-balance
Is the washer level? Does the washer rock
when pushed against the corners?
The washer must be level. The front and rear
feet must be in firm contact with the floor.
Check that the locknuts are tightened. See
“Level the Washer.”
Is the floor flexing, sagging or not level?
Flooring that flexes or is uneven can contribute
to noise and vibration of the washer.
A 3/4˝ (1.9 cm) piece of plywood under the
washer will reduce the sounds. See “Location
Is the load balanced?
Evenly distribute the load in the washer
basket and make sure the height of the load
does not exceed the top row of basket holes.
See “Starting The Washer.”
Do you hear clicking or other noises when
the cycle changes from washing to draining
When the drive system shifts or the washer
basket settles between cycles you may hear
noises that are different from your previous
washer. These are normal washer noises.
Is the washer gurgling or humming?
When the washer drains, the pump will make
a continuous humming with periodic gurgling
or surging sounds as the final amounts of
water are removed. This is normal.
Are you washing a small load?
You will hear more splashing sounds when
washing small loads. This is normal.
The washer basket moves while washing.
This is normal.
Can you hear water spraying?
This is part of the wash action.
Are you washing items with metal snaps,
buckles or zippers?
You may hear metal items touching the basket.
This is normal.
Did you select the Bulky Items cycle?
Use the Bulky Items cycle only for oversized,
nonabsorbent items such as comforters, pillows
or poly-filled jackets. Other items will
create an unbalanced load in this cycle.