P246C

Particulate Filter Restriction - Forced Limited Power Bank 1

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Difficulty starting the engine
Black smoke from the exhaust pipe
Error message on the dashboard

Causes

Heavy contamination of the particulate filter
Malfunction of exhaust gas pressure sensors
Problems with the DPF regeneration system
Use of low-quality fuel
Mechanical damage to the filter

How to Fix

Check the condition of the particulate filter
Perform forced DPF regeneration
Check the operation of pressure sensors
Clean or replace the particulate filter
Exhaust gas recirculation system diagnostics

Related codes

P246D P246B P246A