Worried about gearbox

I've just put my new mgf steps peed on the road and the car drives well except for a noise that comes from inside my gearbox pulling away and at low speeds. I can only describe the noise like a slipping alternator belt noise. The previous owner had the gearbox replaced and the correct gear oil put in and the gearbox certainly looks nice and fresh. I wonder if it is something that would settle down as the car has been stood in a garage for 2 years or is there anything that I can check or repair please?
I love the car and being older now thought that it would be a good thing to replace from my manual mgf. I realise that the gearboxes were not the best but thought that this one would be good.

I'd be inclined to change the oil, automatics are very fussy about it.

cococola wrote: I've just put my new mgf steps peed on the road and the car drives well except for a noise that comes from inside my gearbox pulling away and at low speeds. I can only describe the noise like a slipping alternator belt noise. The previous owner had the gearbox replaced and the correct gear oil put in and the gearbox certainly looks nice and fresh. I wonder if it is something that would settle down as the car has been stood in a garage for 2 years or is there anything that I can check or repair please?
I love the car and being older now thought that it would be a good thing to replace from my manual mgf. I realise that the gearboxes were not the best but thought that this one would be good.

Hi, I also have a Steptronic with the same issue. I am trying to find out if this is a bearing (Rover had a specific repair instruction for the bearing plus special tools in order not to disassemble the whole engine), but lately I met an ex Rover engineer that claims that this is a valve (simple to change) which is not causing any issue and even if I change it, it will start again in 6 months......
I am very keen to replace that valve and let you know.
For info, I changed the gearbox oil and the filter with oil that I got from BMW as Minis of 2000 have the same gearbox (ZF1) and no change in this whistle.........

Im glad that Im not the only one with the problem:lol: It is reassuring to know that this may not cause a problem and I would be intrested to hear if you do change the valve.
Do you have a diagram/picture of the valve please?

cococola wrote: Im glad that Im not the only one with the problem:lol: It is reassuring to know that this may not cause a problem and I would be intrested to hear if you do change the valve.
Do you have a diagram/picture of the valve please?

No I don't. I am planning to visit the repairer next week so I will let you know with the result