[simple81]

Dear all,

My 2016 318i F30 B38 engine has the following problems:

At start-up, drivetrain malfunction came up with CEL. Car went into limp mode.

"Continue the journey at a moderate speed. Full performance not available"

Upon checking with ISTA, the following codes shown up:

123412 Electric wastegate, adaptation: Limit position closed not detected (84680km) (Existent: unknown)
120408 Charging pressure control: Switch-off as consequence (84680km) (Existent: no)
123401 Electric wastegate, adaptation: Cold start not learned (84558km) (Existent: unknown)
123432 Electric wastegate, adaptation: Limit position closed implausible (84680km) (Existent: yes)
8044A4 Horn line: Relay adhesive or short circuit to B+ (84529km) (Existent: no)
030120 Power window, rear door on driver's side: system is not standardised (84593km) (Existent: no)
0301A0 Window regulator on passenger's side door, rear: system is not normalised. (84593km) (Existent: no)

May I know what is wrong with the car?

Help is very much appreciated!

[BWbimmer]

Did you empty the error log and try again?

[simple81]

Originally Posted by BWbimmer

Did you empty the error log and try again?

Yes, the workshop reset the codes and they appeared again after a few drives.

[BWbimmer]

Sounds almost like a problem with the ground wire or indeed like a shortcut:
8044A4 Horn line: Relay adhesive or short circuit to B+
Does your horn work?

[Billfitz]

Once you have the codes you have to do a search on each of them, which will reveal possible causes and cures. For instance:
https://www.google.com/search?client...d+not+detected

[simple81]

In the end, it's the actuator problem.

Repaired and everything is ok now.

[simple81]

Originally Posted by Billfitz

Once you have the codes you have to do a search on each of them, which will reveal possible causes and cures. For instance:
https://www.google.com/search?client...d+not+detected

Yes, I tried but I don't understand the technical terms.

[BWbimmer]

Originally Posted by simple81

In the end, it's the actuator problem.

Repaired and everything is ok now.

And this resolved the problem with the horn ans the window, too???