AlexSTI

Hello guys!
my trans isn't in very good shape. I haven't any errors yet, but it started to Kik from 2 in 1 and now, after 2.000 km Kik from 3 in 2. All of these after oil and filter change and mecatronic round seal and resear of the adaptations. Back than i didn't know that is very bad to reseat adaptations fir this and that there are another 5 seals above mecatronic.
I will go to another service specialized in AT. i hope that the oil level is not ok, but.
Yesterday I drove the car for 60km outside of the town with the OBD connected to see the temperature when it start to feel the kiks. I found that my trans oil doesn't heat up more than 65 degrees. Engine has around 88.
After 30km trans oil had only 40 degrees.
the previous owner told me that he changed all 3 thermostat (engine, EGR, transmission) and the oil cooler of the trans.
Any ideas?

habbyguy

How did you refill the transmission? There is a very specific process that you have to follow exactly to get the right amount of fluid. You don't just fill it up and put the plug back in...

It's possible that the previous owner bypassed the radiator circuit for the transmission cooler. Many will do that to prevent contamination that can occur if the radiator fails internally, but by doing so, it takes (a lot) longer for the transmission to come up to operating temperature - the radiator circuit serves as a "heater" until the transmission is up to operating temperature and then as a cooler. This should be easy to check (just follow the lines from the transmission).

AlexSTI

The oil change was made buy the mecanic. He told me that he had respected the procedure...
very good info about the cooling circuite! I will check it!