Вот что есть по симптоматике, не совсем то пальто, но может направление движения посмотреть:
Transmission in limp-home mode, fault message in IC "Gear Change to R Not Possible"! MODEL 177, 118, 247 with ENGINE M260 and TRANSMISSION 724.0 (except model designations 118.351, 118.651, 177.051, 177.151, 177.951)
- Title
- Complaint
- Cause
- Remedy
- Symptoms
- Control unit/fault code
Title
| Topic number | GI27.60-P-071261 |
| Version | 2 |
| Function group | 27.60 Gearshift, control |
| Date | 11/16/21, 8:37 AM |
| Validity | BR 177, 118 and 247 with M260 engine and 724.0 (7FDCT) transmission. |
| Reason for change | Software available |
Complaint
Transmission limp-home mode with fault message in IC "Gear Change to R Not Possible", the even gears are locked.
Fault code P092500 is present in control unit Y3/14n4 (DKG) in combination with extended freeze frame data 25 F2 (see attachment).
The problem/transmission limp-home mode disappears after the ignition is switched off and on again.
Cause
Engagement of 2nd gear by preselection after 4-3 downshift does not function due to activation fault.
Hydraulic fault caused by the transmission software.
Remedy
Flash transmission control unit Y3/14nY with latest software using Xentry, version 09/2021 or 12/2021 and all add-ons (except model designations 118.351, 118.651, 177.051, 177.151, 177.951); delete fault memory.
If there is no later software available for this complaint, create a TIPS case.
If complaints of this nature are occurring with these vehicles, look for the cause elsewhere. Please create a TIPS case!!
Symptoms
Power transmission > Automatic transmission > Function > Limp-home mode
Power transmission > Automatic transmission > Function > Shifting is not performed or is delayed
Power transmission > Automatic transmission > Drive position selection > Function > Gear cannot be engaged
Power transmission > Automatic transmission > Drive position selection > Function > Malfunction
Control unit/fault code
- Control Units
- Fault codes
- Fault code description
Y3/14 - Transmission control for 7-speed dual-clutch transmission (DKG) (TCM7FDCT)
P092500
The shift valve of the hollow shaft has a malfunction. _
Y3/14 - Transmission control for 7-speed dual-clutch transmission (DKG) (TCM7FDCT)
P092500
The shift valve of the hollow shaft has a malfunction. _
Y3/14 - Transmission control for 7-speed dual-clutch transmission (DKG) (TCM7FDCT)
P092500
The shift valve of the hollow shaft has a malfunction. _