Many people think that the oil in the car's gearbox does not need to be changed. This is a big misconception. This problem can be prevented by following the replacement intervals in the car's user manual. This is especially important for Fiats. This error, if it is not caused by a factory defect, then there is no recall. The reason for this error is usually that the transmission oil is not changed on time. And the lubricating ability of the fluid decreases, and the proportion of aprometallic particles constantly increases due to the natural wear of metal parts. Therefore, friction increases. As a result, the bearing on both sides of the differential usually starts to hang out sooner on the right side, and its play increases. As a result, the oil seal wears out. Then the car leaves oil marks, but it works, then we use it without oil but it still works. Then when a bearing falls apart, it stops. But these are replaceable parts. If there is no visible wear or broken teeth on the gears. Also, the bearing housings are not worn out due to faulty bearings, so it can be repaired. It is worth replacing all the bearings and seals. Then the next important step is to periodically change the lubricating fluid. That way, there will be no problems with it later.
I have already bought a car with such a defect, I reported this defect to the seller and bought the car cheaper accordingly. In this car, it did not cause any problems with the transmission operation, but there was no oil in it, it was already running dry.
Finally, I managed to order the necessary parts from Poland. The two differential bearings and the two seals cost €37 with shipping. (I bought the parts from a Fiat-Iveco service in original Italian parts factory packaging.) Then I installed them with a few hours of work. I have never had any problems with it again, I have driven it for more than 150,000 km. The current owner also uses it daily in city traffic without any problems.
