2012 Avensis 2.0 Diesel

[Pedal Head]

Not had the car long but I've noticed that when accelerating reasonably hard at motorway speeds there's noise that can best be described as a squeeking warble at 3-4 hertz from the engine compartment only while the accelerator is down. I'll be taking it up with a dealer but in the meantime has anyone else suffered this?

[Druid Boy]

There are lots of owners with a vibration coming from the airbox intake pipe. It has a foam rubber gromit on it that wears away causing a 'broarr' noise occasionally. Self taping screws or silicone sealant or similar fix it. Dunno if that fits with your symptoms?

[Pedal Head]

That sounds like a good description, would that be the rather flimsy foam ring where the intake pipe enters the filter box?

[Druid Boy]

Yep, that's the bad boy.

[Pedal Head]

That's the culprit. Reseated it last night, not cured but a fair bit quieter.

Cheers for the tip.