Little update on the situation.




Replaced the brake switch: solved the brake tail lights always on issue.

Replaced ignition switch: solved airbag light, trans fail message, hard steering, all non-working things (wipers, heat seats, vanity light). So pretty much all weird gremlins.
Also no more coolant temp drop neither overconsumption. Crazy what a small electronic part can do!


Replaced battery also, the old one died completely (5v), checked for power drains but it seems there is none, the new battery always keep good voltage.


Thanks folks for the advices, wouldn't have figured that out myself


Not all solved tho, i still get random limp mode (for ex when pulling hard to merge in highway, stabilize at 130kmh, floor it, and nothing happens except downshift and stuck to 3k rpm).
+ the message "4x4 DSC off" pops up after few minutes of driving + the yellow (!).


No more error codes but the glow plugs ones. Could it be that? Don't have any symptoms, starts easily, perfect idle, no smoke).