Is the tapping noise a single tap? Or a series of noises?
Our WQ makes a single tap and has similar kays. I think it's done sort of vacuum/
hvac type thing that happens straight after engine shutoff.
It has done it since we've had the car, about 70,000 kms. Normal i think.
As above, suction noise is normal.
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AU S1 XR8 Auto Liquid Silver
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