Frustrated with A45 P0339 error code

[Mercedes45]

Hi Everyone,
My A45 W176 2014 has become nearly undriveable due to recurring P033900 & P033904 crankshaft sensor faults. Symptoms include jerking, limp mode (~3K RPM limit), engine shutdown while driving, and CEL.

Steps Taken:

• Replaced sensor with OEM part
• Checked wiring/connector – no visible issues
• Checked flywheel no issue
• Re-learn/adaptation is done

The issue persists after replacement even getting worse more jerking with engine shutdown.
Anyone else faced this and found a solid fix? Appreciate any advice.