Vehicle Conditions Incorrect for Diesel Particulate Filter Regeneration
Table of contents
P246B MERCEDES-BENZ Possible Causes
- Fuel system concerns
- Turbocharger system concern
- Exhaust leaks
- Oxidation catalytic converter (OC)
- Aftermarket exhaust accessories or performance modifications
How do I fix code P246B MERCEDES-BENZ?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P246B MERCEDES-BENZ code
The cost of diagnosing the P246B MERCEDES-BENZ code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P246B MERCEDES-BENZ Description
The Powertrain Control Module (PCM) monitors the conditions necessary for diesel particulate filter regeneration. The test fails when the level of diesel particulate filter regeneration is not at the target reduction after 13 minutes of active regeneration.