Bobcat M0217 (02-17) Fault Code: Hydraulic Implement Filter Plugged
Also shown on the panel as 02-17 · Also called Hydraulic/Hydrostatic Filter Plugged
Hydraulic Implement Filter Plugged · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
M0217 (panel code 02-17) sets when the gateway controller sees the hydraulic implement filter switch signal open for 30 seconds while the engine is running and hydraulic oil temperature is above 130°F. It means the filter's bypass switch has opened, which usually points to a plugged hydraulic implement filter, though wiring, switch, or controller faults can trigger it too.
Medium severity. This code does not stop the machine immediately, but a bypassed hydraulic implement filter means unfiltered oil is circulating through the hydraulic system. Left unaddressed, this can accelerate wear on pumps, valves, and other hydraulic components. Diagnose it within the shift rather than ignoring it.
What does Bobcat error code M0217 mean?
M0217 is a message telling you the hydraulic implement filter switch signal wire has been open for a sustained period while the engine runs and the hydraulic oil is warm. The filter switch is normally closed and mounted on the back of the filter assembly. It opens only when pressure across the filter reaches a critical level, which is the filter's way of signaling that it is plugged enough to force oil into a bypass path rather than through the filter media.
In plain terms, the hydraulic system decided the filter was too clogged to pass oil at a safe pressure drop, so it opened a bypass to keep oil flowing to the pump and implements. That protects the hydraulic system from starvation, but it also means dirty, unfiltered oil is now circulating, which is bad for seals, valves, and pump internals over time.
There are two wiring variants Bobcat uses across models: one uses a two-wire switch with a separate signal wire (3320) and ground wire (2320), and the other uses a one-wire, case-grounded switch on signal wire 3430. Both work the same way and both set the same M0217 code under the same conditions.
What triggers a Bobcat M0217 code?
The gateway controller sets M0217 when the hydraulic implement filter switch signal is open for 30 seconds continuously, with the key switch in run/enter, the engine running, and hydraulic oil temperature above 130°F.
Common causes of M0217
- Hydraulic implement filter is plugged or restricted enough to force the bypass switch open.
- Signal wire open: wire 3320 or ground wire 2320 open on two-wire switch versions, or wire 3430 open on one-wire, case-grounded switch versions.
- Poor switch ground through the filter housing on case-grounded (one-wire) switch versions.
- Failed hydraulic implement filter switch itself.
- Gateway controller fault.
- Moisture, corrosion, or pushed-back pins in the gateway controller connectors, the hydraulic implement filter switch connector, or the mainframe harness.
- Intermittent causes that are not present at the time of testing: loose connections, corrosion, pushed-back pins, the controller, the wire harness, or a combination of these problems.
How to troubleshoot Bobcat M0217: first checks
- Check the hydraulic oil level and condition. Confirm the hydraulic implement filter itself for visible plugging, service history, or overdue replacement.
- Inspect the filter switch connector and the mainframe harness connectors at the gateway controller for moisture, corrosion, or pins that have pushed back out of their sockets.
- With the key on and engine off, check continuity on the signal wire (3320 with its ground wire 2320, or 3430 depending on your model's switch type) between the switch and the controller.
- On one-wire, case-grounded switch models, verify the switch has a solid ground path through the filter housing itself, not just through the wiring.
- Confirm hydraulic oil temperature was actually above 130°F when the fault occurred, since the code only sets above that temperature with the engine running.
- If the code will not reproduce and nothing is found, treat it as intermittent and recheck all connections, the harness routing, and the controller connectors for marginal contact.
How the code clears
Once the repair is complete, cycle the key power off and back on. No separate clearing step is listed beyond cycling power.
Affected models and serial ranges
M0217 appears in our records across 16 Bobcat models. Match your machine by model and serial number.
| Model | Serial ranges |
|---|---|
| S510 | SN A3NJ11001-99999, SN A3NK11001-99999, SN ATZC11001-ATZC99999 |
| S530 | SN A7TV11001-99999, SN ATZD11001-99999 |
| S550 | SN A3NK11001-A3NL99999, SN A3NM11001-99999 |
| S570 | SN A7U711001-799999, SN A7U811001-899999 |
| S590 | SN ANMN11001-99999, SN ANMP11001-99999 |
| S630 | SN A3NT12370-99999, SN A3NU11001-11111, SN A3NU11112-99999 |
| S650 | SN A3NV11001-13098, SN A3NV13099-99999, SN A3NW11001-11248, SN A3NW11249-99999 |
| S750 | SN A3P211001-299999 |
| S770 | SN A3P411001-99999 |
| T550 | SN A7UJ11001-AJZV12276 |
| T590 | SN ALJU11001-999999, SN B37811001-999999, SN B3Z711001-999999 |
| T630 | SN A7PU11001-11663, SN A7PU11664-99999 |
| T650 | SN A3P012214-099999, SN A3P111242-199999 |
| T750 | SN ANKA11001-A99999 |
| T770 | SN A3P811001-899999, SN A3P911001-999999 |
| T870 | SN A3PG11001-99999, SN A3PH11001-99999 |
Frequently asked questions
What does Bobcat code M0217 mean?
It means the hydraulic implement filter switch signal has been open for 30 seconds while the engine runs and hydraulic oil is above 130°F. That switch opens when filter pressure gets high enough to force the system into bypass, which usually means the filter is plugged.
Can I keep operating the machine with M0217 active?
You can typically keep running, but the hydraulic system is bypassing its implement filter, so unfiltered oil is circulating. It is best to diagnose and fix this within the same shift rather than run it for extended periods.
Is M0217 always caused by a plugged filter?
No. A plugged hydraulic implement filter is the most common cause, but the code can also come from an open signal or ground wire, a bad switch, a failed gateway controller, or corrosion and pushed-back pins in the connectors.
What is the panel display number for this code?
On the panel, M0217 displays in numeric form as 02-17.
Why does the code only set above 130°F oil temperature?
The filter switch and bypass logic are tied to hydraulic oil viscosity and pressure behavior at operating temperature. The condition only evaluates once the engine is running and oil temperature is above 130°F, so cold-start filter resistance does not falsely trigger it.
How do I clear M0217 after fixing it?
Cycle the key power off and back on. There is no other listed clearing procedure.
My machine has a one-wire filter switch, does that change the fix?
Yes, partly. Some Bobcat models use a one-wire, case-grounded switch on signal wire 3430 instead of a two-wire switch with separate signal (3320) and ground (2320) wires. On the one-wire version, also check that the switch has a good ground through the filter housing itself, since a poor housing ground can set the same code.