In this thread you yourself provided evidence that you used the wrong oil and didn't adjust the uniair control parameters after the oil change - that's what I mean with "without the expertise". But I'm afraid you are in good company, as many Fiat garages don't know this and will happily tell you that all twin airs need any 5W40 and have no clue that there is another routine to be performed on the computer.
Hi.
An eye opener indeed.
It is very worrying that there is a feeling the Fiat service engineers are not doing the job correctly. Do we have the evidence that they are not re-setting the parameters for the uni-air module after an oil change?
Does the ECU have stored details of how many times this re-setting is done, I know other vehicles log the number of accesses and what parameters were changed and stored.
If there is sufficient evidence that this wasn't reset then surely this could be taken further and the service department taken to task.
The other snag is there are still some like me that goes out and buys a clean low mileage used car with the intention of keeping it for some years, I have additionally rust proofed it on the rear beam, subframe and other obviously potential rust spots, I do an additional oil change every 6 months and use quality Iridium plugs and don't skimp on maintenance. So my point is if you are a TA owner and are unaware of this reset you need to do as no doubt a general garage is as well what harm are you doing to the engine and lets be honest is this another ploy for dealer only service work?