FF gear failure

Ouch, best of luck and obviously keep us informed.

 

Sounds like one of the DCT failure modes that afflicted early 458 and Californias. It required transmission replacement under warranty. Those were 2010 and 2011 model years, though I have heard of a few later ones, but no FFs which begin in MY 2012. But with a little luck your problem will be only an addressable software glitch.

What is the model year of your FF?

 

Probably the TCU...

SV

 

Keith (SV) is probably right about the TCU in which case it will be an easy repair (after they get a new TCU).

 

TCU = transmission control unit. The computer that controls the shifting based on the inputs from a set of sensors and the driver.

I have not heard of a transmission failure in an FF despite many having a lot more miles than yours.

 

Tho it sounds symptomatically similar to the fails in Cali's and 458s.

SV

 

Hmm, well considering the SLS has basically the same transmission, I basically had the same problem. However mine contained a bit more drama than that. So I was at a red light, when it turned green, pushed the throttle the car jerks and puts itself in neutral. Then the engine goes from a V8 into a V4. How we fixed it was we restarted the car and then it sort of became normal but after getting it to the nearest Benz service station it turned out that the TCU and ECU had a small glitch which was patched in the newest update. They told me that barely any people get this glitch but it does happen. Not all TCUs and ECUs are perfect. I hope your problem is resolved with a update. Keep us updated.

George

 

Many of the failure modes I recall in those 2010s and 2011s was a shifting only between even numbered gears or between odd numbered gears. So for example it would shift from 2nd to 4th, while skipping 3rd. It was as if one of the clutches was disabled, so that only the gears on one of the shafts were active. The transmission needed to be replaced though I heard that a less dramatic "fix" was developed later (but I can't confirm that).

I suppose that any of the computer operated DCTs can fail (cf. George Wang's SLS ) ... then you are pretty much disabled. It is not like the old days when we could limp home even without a clutch by synchronizing the gears for shifting.

Roberto should find out soon what the problem is.

 

PLEASE Pina, PLEASE, when the warranty expires, RENEW IT.

Gearbox, engine and transmissions.

 

U did well.

 

Good news. It must be a rare failure since evidently FNA does not stock the part. In any event, you should be back on the road soon.