E92 Transmission Fault

[Rrh8]

I’ve owned my E92 320d for nearly a year. With 75k miles on the clock it’s never skipped a beat.
Today I got the error message “transmission fault” and a picture of a yellow cog. It felt like the auto box was stuck in 4th or 5th gear.
I pulled over, switched off and re started. Car drove normally and the warning had gone.
Can anyone offer any advice. Should I be worried. Anyone had anything similar???
Thanks in advance.

[cgauk]

Is your battery in good shape? Could be a voltage issue to the sensor? (Not seen it on a bmw but my other car likes to report all manner of faults when the battery is dying)

[Pericoloso]

Plug in an OBD reader to see fault codes.

Read codes,go from there.

[AdamIndy]

If you can find someone with inpa or some other diagnostic software, there should be a stored fault code to see what the issue is/was.

[Elliot2000]

What year is it? Definitely worth getting it checked, and not with a generic obd reader as these normally wont read gearbox ecu faults.

You may have one of the common leaks on that gearbox and your fluid level has just dropped below a level to be causing some issues

[Rrh8]

Thanks for the thoughts.
It’s a late 2012 model.
I did wonder if I’d fully engaged drive properly.
I’d stopped at some lights and put it into N for a couple of seconds. The lights changed much quicker than I expected and I (think) I snatched at D maybe not properly engaging the gear stick.
I was unable to change via the paddles or the stick. I think it showed it as being in 5th gear.
I’ll take it out again today but having switched off and re started. All is as it was.

[NDA]

I have an elderly Range Rover that gives a 'transmission fault' warning about once a fortnight. It goes away if re-started and runs as sweetly as it ever did 130,000 miles ago. I assume my ECU is tired of life.

This is not to say you should ignore your fault, but simply to say they can be erroneous.