Bobcat Hydraulic Oil Temperature High
The BOBCAT-M0311 (Bobcat) diesel fault code means: Bobcat Hydraulic Oil Temperature High. This is a serious severity code.
- Keep driving?
- No — stop driving
- DIY difficulty
- intermediate
- Estimated cost
- $0-$2,500
What Are the Symptoms of BOBCAT-M0311?
- Hydraulic temp lamp red
- Slow cycle times as machine protects
What Causes BOBCAT-M0311? (Most Likely First)
- Plugged hydraulic oil cooler fins Very Likely
- Hydrostat relief valve failure generating heat Possible
- Low hydraulic oil level Possible
Can I Still Drive with BOBCAT-M0311?
No — stop driving. BOBCAT-M0311 is rated serious severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.
Frequently Asked Questions
What is Bobcat code M0311?
Bobcat M0311: Bobcat Hydraulic Oil Temperature High. This code is reported on Bobcat equipment running the described engine family.
Can I keep working with Bobcat code M0311?
Do not continue operating. Risk of engine damage or unsafe shutdown.
How much does Bobcat M0311 cost to fix?
Estimated repair cost: $0-$2,500. Off-road diesel shop labor runs $125-$175/hr in 2026. Dealer diagnostic software (Bobcat Service Analyzer) is usually required.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose BOBCAT-M0311?
Clean cooler core from inside out with low-pressure air.
Check hydraulic oil level and condition.
Scan hydrostat pressures during drive to confirm no internal bypass.
Which Vehicles Commonly Get BOBCAT-M0311?
- Bobcat S650 skid steer loader (Kubota V3800)
- Bobcat S740 / S750 / S770 / S850 skid steer loaders (Kubota V3800)
- Bobcat T650 / T750 / T770 / T870 compact track loaders (Kubota V3800)
- Bobcat E50 / E55 / E60 / E85 mini excavators (Kubota V3800)
- Bobcat UW56 utility vehicle (Kubota V3800)
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