P214A

SCR NOx Catalyst Inlet Temperature Too High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–222 (est.)

Symptoms

Increased NOx emissions
Check Engine light comes on
Reduced efficiency of the SCR system
Possible errors related to the AdBlue system

Causes

SCR temperature sensor malfunction
Problems with the exhaust system
Incorrect operation of the AdBlue supply system
Engine management system malfunction
Clogged or damaged SCR catalyst

How to Fix

Check SCR temperature sensor
Diagnose the exhaust system for leaks or damage
Check the operation of the AdBlue supply system
Scan the engine management system for other errors
If necessary, replace the SCR catalyst

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