[europhon]

Hello.

I need to update the engine control unit software of a Mercedes benz with monaco software.
VIN: WDD2050041Rxxxxxx
HW: 651 901 20 02
ZB: 651 902 28 03
SW: 651 903 40 66
Unit variant: CRD3S2_Diag_3146h
Engine: 651
I can't find in the mercedes SD Flash disk which update corresponds to this unit.
Please if someone can tell me
best regards

[siwecki]

Why update needed?

[europhon]

fault codes:

U029E87 Communication with NOx sensor 2 has a malfunction. Lack

the message.
Current and memorized
2. U029D87 Communication with NOx sensor 1 has malfunction. Lack
the message.
Current and memorized
3. P13DF09 The AdBlue system has a malfunction. There is a fault in the
component.
Current and memorized
4. P1BC300 Additional peripheral fault data for fault analysis (data record 03)
Current and memorized
5. P229F09 NOx sensor 2 (cylinder bank 1) has a malfunction.
There is a component failure.
Current and memorized
6. P013511 Lambda probe heater 1 (cylinder bank 1) has an electrical fault. Exists
a short to ground.
memorized
7. P224392 Reference voltage connection of lambda probe 1 (cylinder bank 1) has
an electrical fault or interruption. The function or indication is wrong.

[BabeH]

fault codes:

U029E87 Communication with NOx sensor 2 has a malfunction. Lack

the message.
Current and memorized
2. U029D87 Communication with NOx sensor 1 has malfunction. Lack
the message.
Current and memorized
3. P13DF09 The AdBlue system has a malfunction. There is a fault in the
component.
Current and memorized
4. P1BC300 Additional peripheral fault data for fault analysis (data record 03)
Current and memorized
5. P229F09 NOx sensor 2 (cylinder bank 1) has a malfunction.
There is a component failure.
Current and memorized
6. P013511 Lambda probe heater 1 (cylinder bank 1) has an electrical fault. Exists
a short to ground.
memorized
7. P224392 Reference voltage connection of lambda probe 1 (cylinder bank 1) has
an electrical fault or interruption. The function or indication is wrong.

No matter old or new firmware that should work and won't the cause of those faults.
If you sure those sensors are good working,
means that is hardware fail in ECU.