812SF Gearbox issue

[garystoybox]

Oh well, interesting one at the weekend when out for a little tootle.
20 minutes into my drive the car decided to throw a gearbox failure warning, with my instantly losing 1st & 3rd gear. Managed to get it home ok, but fault wouldn’t clear and it was trailered off to my local dealer. Initial investigations and error codes have Ferrari instructing gearbox removal and strip. These things happen I guess; just pleased that it’s still under the four year factory warranty. Can’t imagine this would be a cheap repair. I’ll update next week when I know more if anybody interested.

[Alexandra]

Oh, sorry to hear that, hopefully it's a quick job. What is the age and mileage, out of interest?

[Akajak]

Loss of either all even or all odd gears is typical of Ferrari gearbox/sensor failure.
Hopefully it’s something simpler, but either way good that you’re covered.
Shouldn’t take too long to resolve; few weeks max

[garystoybox]

Alexandra said:

Oh, sorry to hear that, hopefully it's a quick job. What is the age and mileage, out of interest?

Just on its 3rd birthday and 7,300 miles.

[robm3]

Mine is on 24,000km and I've noticed a whine on 4th gear. So some wear there no doubt but doesn't worry me.

[garystoybox]

In the end, this was diagnosed as simply a sensor which had not been sufficiently torqued when the gearbox was built and which had simply loosened over the miles. No parts needed, but a huge labour intensive gearbox removal, strip and reassemble. Biggest wait was for the factory to send over a special jig to support the gearbox during removal. An expensive error by whichever tech was working on the line that day.

[anonymous-user]

Do they use torque paste to mark the components? If so you can tell which tech worked on it by the colour code, even if it’s not clear from the build record.

That’s poor quality control. (Honda in their NSX assembly line use digital torque wrenches that electronically log the torque of every component on each car!)

[pancholi]

i wonder how many other gearboxes the technician was building that day/week/month......