Code result
P200D
Particulate Filter Over Temperature
Moderate severity
What it means
A temperature sensor at the diesel particulate filter (DPF) on bank 2 has exceeded the safe limit — typically during a runaway regeneration. Continued operation can melt or crack the substrate.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Runaway regeneration
highOne of the most commonly reported causes for this code — check this first.
Related help
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