P214D

SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

Increased fuel consumption
Reduced engine power
Burning smell from the exhaust system
Check Engine Light Is On
Activating emergency engine operation

Causes

SCR temperature sensor malfunction
Problems with the urea injection system (AdBlue)
Clogged particulate filter
Malfunction of the DPF regeneration system
Damage to exhaust system insulation

How to Fix

Check the functionality of the SCR temperature sensor
Diagnose the AdBlue injection system
Check the condition of the particulate filter
Explore the DPF regeneration system
Check the integrity of the exhaust system thermal insulation

Related codes

P20EE P207F P2080