Dear All, A few weeks ago I bought a 2003 E320 estate, 160000 miles. It has a definite whine, and I suspect it is coming from the gearbox. This was present when I bought the car, but I just assumed it was a noise from an enthusiastic engine. In character, the noise is quite similar to the sound a milkfloat makes. It is most pronounced from the first couple of gears in the first few minutes of driving, and starts at about 1800 revs, disappearing at just over 2000. It sounds ok at motorway speeds, although it is difficult to tell because of road noise etc. The car drives well with no jerkiness or juddering, has a good service history, and seems to be in good condition overall.. In amongst all the receipts etc that came with the car was one for an ATF and filter change and diagnostics, this being at 130000 miles, five years ago. I spoke to a local indie, who instantly said that the gearbox was probably b*ggered. The ATF level was checked by one of his chaps and found to be 'a bit low', but he assured me that this wouldn't account for any sort of noise. He hadn't looked at the car himself, and suggests that I drop it off at some point. With all the CV19 stuff it's been quite difficult to find a garage that isn't booked up for weeks, otherwise I'd have had someone look it over before now. I've bought some ATF from Mercedes, and have made a dipstick from curtain wire as advised on here. First attempt was too floppy (they don't make it like they used to!), so I've stiffened the curtain wire by threading a copper wire up it and will attempt a measurement and top-up today. When I used the first dipstick, I was surprised to see the fluid was a honey colour, similar to fresh engine oil.. Any thought/advice most welcome!