P214C

SCR NOx Catalyst Outlet Temperature Too High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unusual odors from the exhaust system
Engine transition to emergency mode

Causes

SCR NOx temperature sensor malfunction
Problems with the urea injection system (AdBlue)
SCR NOx catalyst clogged
Malfunction of the catalyst cooling system
Temperature sensor wiring harness damaged

How to Fix

Check SCR NOx temperature sensor
Diagnose the urea injection system
Clean or replace SCR NOx catalyst
Check the catalyst cooling system
Inspect the temperature sensor wiring harness

Related codes

P20EE P229F P2201