The Claas ARION 500 tractor features a user-friendly instrument cluster with clear warning lights to keep you informed of machine status. Understanding these indicators is key to safe and efficient operation in the field or on the road.
Claas ARION 500 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A critical fault has been detected – stop the engine immediately to prevent damage, as seen on the ARION 500 CEMOS display. | Stop the engine, check the message on the CEBIS screen, and contact your Claas dealer. | |
| Master Caution | AMBER | A non-critical fault or advisory is active – review the CEBIS display for details in your ARION 500. | Consult the instrument panel messages and address the indicated system. | |
| Check Engine (MIL) | AMBER | The engine management system has detected a fault – on the ARION 500, this may relate to emission or sensor issues. | Have the engine diagnosed by a qualified technician as soon as possible. | |
| Engine Oil Pressure | RED | Engine oil pressure is too low – could indicate a lubrication problem in your ARION 500's engine. | Stop the engine immediately and check oil level. Do not restart until fixed. | |
| Battery / Charging | RED | The charging system is not working properly – the alternator or battery may be faulty on your tractor. | Check alternator belt and battery connections. If light stays on, service is required. | |
| Coolant Temperature | RED | Engine coolant temperature is too high – could be due to low coolant or a clogged radiator on the ARION 500. | Stop the engine, let it cool, then check coolant level and fan operation. | |
| Transmission Temp | AMBER | Transmission oil temperature is above normal – reduce load or shift to a lower gear to cool down. | Reduce engine load or stop the tractor to allow transmission to cool. | |
| Brake System | RED | A fault in the brake system – possibly low brake fluid or wear in the ARION 500's hydraulic brakes. | Check brake fluid level and brake pads. Do not operate until repaired. | |
| Parking Brake | RED | Parking brake is engaged – release before moving the ARION 500 to avoid damage. | Disengage the parking brake before driving. | |
| Glow Plug / Preheat | AMBER | The glow plugs are preheating the engine – wait for the light to turn off before starting in cold conditions. | Turn the key to position II and wait until the light goes out before cranking. | |
| DPF / Regeneration | AMBER | The diesel particulate filter is regenerating – do not interrupt the process to avoid clogging. | Keep engine running at operating temperature until regeneration completes. | |
| DEF / AdBlue | AMBER | AdBlue level is low or system fault – on the ARION 500, engine power may be reduced if ignored. | Refill AdBlue tank or check system for errors. | |
| Water in Fuel | AMBER | Water has been detected in the fuel filter – drain the filter separator to prevent injector damage. | Drain water from the fuel filter bowl immediately. | |
| Low Fuel | AMBER | Fuel level is low – refill soon to avoid running out of diesel in the field. | Add diesel fuel to the tank. | |
| High Beam | BLUE | High beam headlights are active – use only when no oncoming traffic is present. | Switch to low beam when approaching other vehicles. | |
| Power Steering (EPS) | AMBER | Power steering system has a fault – steering may become heavy, especially at low speeds. | Check power steering fluid level and belt; seek service if needed. | |
| Hydraulic System | AMBER | A fault in the hydraulic system – implement functions may be affected on the ARION 500. | Check hydraulic oil level and filter; avoid heavy lifting until resolved. | |
| Work Lights | GREEN | Work lights are turned on for nighttime or low-visibility operations. | Turn off when not needed to save battery. | |
| Beacon / Rotating Light | GREEN | Rooftop beacon is active – indicates the tractor is visible for safety on roads. | Ensure beacon is used when traveling on public roads. | |
| Differential Lock | AMBER | Rear differential lock is engaged – use only on soft ground and disengage when turning. | Disengage differential lock when not needed to avoid driveline stress. | |
| PTO Engaged | AMBER | Power take-off is engaged – be cautious of rotating shafts and avoid standing near. | Disengage PTO when not in use to save fuel and prevent accidents. | |
| Trailer | GREEN | Trailer connection detected and trailer lighting is active. | Verify trailer brake and light functions before moving. |
22 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Engine Overheating
Common causes
- Low coolant level
- Clogged radiator fins
- Faulty thermostat or water pump
What to do
Stop the ARION 500 immediately, allow engine to cool, then check coolant level and radiator cleanliness. If problem persists, inspect the cooling system for leaks or component failure.
Transmission Overheating
Common causes
- Excessive load or continuous hard pulling
- Low transmission oil level
- Blocked oil cooler
What to do
Reduce load or shift to a lower gear. Check transmission oil level and ensure the cooler is clean. If light stays on, allow the tractor to idle until temperature drops.
Engine Oil Pressure Loss
Common causes
- Low oil level
- Oil pump failure
- Clogged oil filter or passage
What to do
Stop the engine immediately. Check oil level and top up if needed. If pressure does not return, do not restart; have the oil system inspected by a Claas technician.
Hydraulic System Failure
Common causes
- Low hydraulic oil level
- Contaminated oil or filter
- Leak in hoses or seals
What to do
Check hydraulic oil level and condition, inspect for visible leaks. Replace filters if contaminated. Avoid using implements until the system is serviced.
Electrical System Malfunction (Battery/Charging)
Common causes
- Loose or corroded battery terminals
- Failed alternator
- Bad battery or wiring
What to do
Inspect battery connections and clean corrosion. Check alternator belt tension. If light persists, test alternator output and battery voltage; replace faulty components.
Frequently Asked Questions
Why is the Master Warning light flashing on my ARION 500?
The Master Warning light indicates a critical fault. Check the CEBIS display for the specific error code and stop the engine if the light is red. Common causes include engine overheating or low oil pressure.
What does the amber caution light mean when driving?
The amber caution light signals a non-critical issue. On the ARION 500, it could be a low AdBlue level, a DPF regeneration in progress, or a minor transmission temperature rise. Check the display for details.
How do I reset the service hour meter (wrench) light?
The service light appears at predetermined intervals. To reset, go to the CEBIS menu, select 'Service', and follow the on-screen instructions. If unsure, consult your operator's manual or Claas dealer.
Why is the glow plug light staying on longer than usual?
In cold ambient temperatures, the glow plugs may need extra time to preheat. If the light stays on indefinitely, there may be a glow plug or relay fault. Have the system checked before the next cold start.
Can I drive with the DPF regeneration light on?
Yes, but you should continue operating the tractor at engine speeds above 1500 rpm until regeneration completes. Do not stop or idle the engine, as this can interrupt the process and cause filter clogging.
What should I do if the brake system warning light comes on?
Check brake fluid level immediately. If low, add fluid and inspect for leaks. If the light remains on, the brake pads may be worn, or there is a hydraulic fault. Do not operate the tractor on public roads until brakes are safe.