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Hi all. I am getting a hunning sound from the front of the car which comes and goes but it only does it when the car / transmission is hot after about 1.5 hours of normal driving.

Any help whould be great.

Cheers

Richard RS2

Brake pads failing to sit back in the caliper due to galvanisation build up between the steel backing clip & aluminium caliper body. Common issue & my educated guess. Wheel bearing usually an issue from the moment you set off.

Ok thanks. Would this not make the noise all of the time though not just after 1.5 hours when hot ?

Does anyone know that the situation is with diff / gearbox oil changes ? If the oil was getting hot due to a low level could it make a humming sound from the diff or gearbox ?

Unlikely but worth changing the oil.

Prop centre bearing?

Mine does it after 1.5-2 hours.

Andy

Possible, however mine gave a noise with the car stationary on throttle lift off @ 3.5k & under load with lift off throttle. You get the noise of that bearing when worn when you create load & Xs movement & then noise. It would not cause a constant noise on the run in my experience. Its the calipers

Difficult without hearing the noise but i had a simular sort of noise from the offside front which was the calipers/pads issue Alistair mentioned which is well documented and the huge amount of brake dust that had built up... mine was all sorted with new calipers and pads.