M156 codes
Thread Starter
Junior Member
Joined: Aug 2022
Posts: 19
Likes: 0
c63 w204
M156 codes
I finished assembling the car yesterday and these codes came up. What did I do wrong? The timing tool has a good reputation on Amazon. The car doesn't stall, but while driving it wants to shut off and then goes back to normal. What could it be? What should I do? Do I need to do anything with the Xentry?
Error Codes
2069
“The outside temperature sensor has a short circuit to the positive pole.”
⸻
3699
“The fuel rail pressure sensor has an irregularity in operation.”
⸻
0271
“The intake camshaft position (bank 1) differs from the nominal value.”
⸻
0275
“The intake camshaft position (bank 2) differs from the nominal value.”
Error Codes
2069
“The outside temperature sensor has a short circuit to the positive pole.”
⸻
3699
“The fuel rail pressure sensor has an irregularity in operation.”
⸻
0271
“The intake camshaft position (bank 1) differs from the nominal value.”
⸻
0275
“The intake camshaft position (bank 2) differs from the nominal value.”
Junior Member
Joined: Oct 2020
Posts: 19
Likes: 4
From: Near Sea
C63 AMG (2008) and 190E EVOII
Did you reset all the adaptive values in xentry afterwards? Im not totally sure but i believe you can let the car relearn and also reset the camshaft positions, please correct me if im wrong
Rest are probably old codes, outside temp doesnt interfere with your issue, fuel pressure can!
Rest are probably old codes, outside temp doesnt interfere with your issue, fuel pressure can!
Last edited by Cloudini5; Jan 27, 2026 at 07:17 PM.
