Bobcat Engine Derate Active - Aftertreatment Inducement
The BOBCAT-M0307 (Bobcat) diesel fault code means: Bobcat Engine Derate Active - Aftertreatment Inducement. This is a serious severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- intermediate
- Estimated cost
- Depends on root cause
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Common Symptoms
- Power / RPM limit active
- Amber engine + regen lamps
Probable Causes (Ranked by Likelihood)
- Ignored prior DPF regen request Very Likely
- DEF system fault escalated to derate Likely
- Emissions sensor fault not cleared Possible
Step-by-Step Diagnostic Procedure
Use Service Analyzer to identify the underlying SPN/FMI triggering derate.
Run parked regen to satisfy DPF inducement.
Check DEF quality and NOx sensor feedback.
Frequently Asked Questions
What is Bobcat code M0307?
Bobcat M0307: Bobcat Engine Derate Active - Aftertreatment Inducement. This code is reported on Bobcat equipment running the described engine family.
Can I keep working with Bobcat code M0307?
Limited operation only -- finish the current task then shut down for repair.
How much does Bobcat M0307 cost to fix?
Typical repair cost: Depends on root cause. Off-road diesel shop labor runs $125-$175/hr in 2026. Dealer diagnostic software (Bobcat Service Analyzer) is usually required.