Technical Fiat Ducato 250 2.3 (2018) comfortmatic NO reverse,

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Technical Fiat Ducato 250 2.3 (2018) comfortmatic NO reverse,

Ottorocket

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Oct 31, 2024
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Location
Antwerp
Hi all,

Bought myself some time ago a Fiat Ducato (2018) with 160.000 km's which was used by a packaging company so I expected some wear and tear. The clutch plates were replaced at 130.000 km's.

The van has been standing still for 6 months now (research on vanbuilding first), I was heading to the car inspection center to get it registered driving forward no problem at all.

But THEN after stopping wanted to put it in reverse and gave a weird buzzing/clunky sound at the clutch area and the dash warning 'gear not available'. Had this only one time before when I bought it but warning went away after stopping and turning ignition off/on (thinking it was probably my fault not being patient with the slow robot shift instead of a fast DSG system). Not this time. Can still drive forward but selecting reverse, hear the robot moving, but no R on the dash and no reverse lights at the back. Also when shifting from forward to neutral I get the warning for 2 seconds but still gets into neutral.

Bought a new battery after reading about fixing this problem with placing an 110ah battery instead of the old worn 100ah (extra power to the robot/ECU), did not fix it.
Next step, checking the clutch Dot 4 oil fill level and checking connections for moist (no idea where to look).

Any more suggestions/fixes before going to the garage with the probably 'change the 30.000 km clutch plates' pricetag?

Friendly greetings.
 
Model
250
Year
2018
Hello,

The Comformatic / Dualogic system needs regular and precise servicing. Not cared enough gets problematic.

The 10 Ah more in the battery won't give you any advantage. New, healthy battery will :)

DOT4 fluid is highly hygroscopic, so it looses its properties quickly. So needs regular replacing. The FIAT documentation says every 2 years, some producers say latest every 4 years.

There are several threads regarding this transmission, don't know if you have checked them. If not, you can start by this one:

https://www.fiatforum.com/threads/the-one-and-only-dualogic-repair-thread.506937/
 
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