Hi
I'm facing some weird behaviors since few days and start to feel a bit desperate as i can't find anything exactly related to it, so i hope someone will be able to help me with at least few of them


2005 3.0dA


Back from a 3k km trip with it, everything went fine during, but on the way back it started to become a real mess..

It haven't experienced any extreme conditions, few bumpy roads, not extreme heat, and what might be an issue starter was a automatic carwash that i saw squirting some water from under the chassis..


To begin with i have all the time a random power loss at high speed. Around 130 140kmh, when i floor it, either it pulls fine, either it just doesn't rev above 3000rpm, sometimes just downshift and that's it.


After 100km, yellow (!) popped up on the dash, showing messages "DSC/4x4 off" and "TRANS. FAIL-SAFE PROG". No changes in driving feeling.
After having a coffee stop, i turn it back on, the same stuff shows on the dash but also the steering is very hard at stop / low speed.

I kept driving because what else can i do.. the steering went back to normal, but yellow (!) still here. Speed regulator not working. And "put your belt" message kept flashing and biping for few miles even with all 5 belts fastened.

Next coffee stop, next issue... after switching ignition to 1 or 2, the stop lights turns on and stays on no matter what. Also airbag light turned on, but kinda dimmed, not completely bright.

Had to swear at it several times, turn off and on few times, and at some point the stop lights worked as they should. On the road again, yellow (!) went off, no lights or sounds, like nothing ever happened!

Next issue (like it wasn't enough) that i noticed on the road after all that: the temp gauge is going down as i drive at high speed (bit above the first white mark). Fan not always turning.

Fuel range dropping fast, i'm loosing around 1km each 500m.

Stopped to refuel a bit, at startup same stuff with the stop lights...

Finally arrived home, let the car rest a couple days. Drove it today and had everything again: belt light, airbag light, stop lights always on, yellow (!), fuel drop, hard steering and trans safe message
Don't know about the temp gauge as i drove in city and it stayed at good temp (middle).

So at this point i really don't know what to do with it.
The gears are passing fine, no weird noises, no smoke, no vibrations.
Battery is charging well, engine starts without struggle.


Could some sprayed water under the chassis cause all this mess by killing some electronics? Because it really looks like some kind of sensor issue, and not only one. But that sounds strange because the car is also splashed everywhere when driving under rain or in puddles..


Recently changed:
- Air filter
- Engine oil
- PCV valve


Thanks for reading that novel, and another thanks to anyone who could give an input. I underlined the issues as there is a lot..
Hope it's not good to throw..



EDIT: Windshield washers stopped working also, and the odb module disconnects in the middle of a codes scan. Now i disconnected the battery for few hours to reset all the things.


Disconnecting the battery for few hours haven't changed a thing.


Tried the reset procedure: press on gas, ignition to 2, wait 30secs, press brake for 10secs. Nothing.