The Scania S500's instrument cluster features a high-resolution TFT display that integrates digital gauges and configurable layouts. Its emphasis on user-friendly design ensures critical warnings are immediately visible, with color-coded indicators for clear priority.
Scania S500 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | This red stop symbol appears when a critical fault forces the S500 to shut down to prevent damage. | Safely stop the engine and contact Scania service immediately. | |
| Master Caution | AMBER | An amber triangle indicates a non-critical system issue that needs attention soon on your S500. | Check the central display for detailed fault info and schedule service. | |
| Check Engine (MIL) | AMBER | Illuminates when the S500's engine management detects a problem affecting emissions or performance. | Reduce load and visit an authorized Scania workshop for diagnosis. | |
| Engine Oil Pressure | RED | Low oil pressure in the S500's 13-liter engine can cause immediate damage if ignored. | Stop the engine immediately and check oil level; top up if safe. | |
| Battery / Charging | RED | The S500's alternator or battery system has a fault, risking electrical failure during long hauls. | Check battery connections and alternator belt; if persistent, tow to workshop. | |
| Coolant Temperature | RED | Engine coolant temperature exceeds safe limits, often due to low coolant or a failed fan in the S500. | Stop the engine, let it cool, then check coolant level and radiator for blockages. | |
| Transmission Temp | AMBER | The S500's gearbox oil temperature is climbing, which can damage the Scania Opticruise system if ignored. | Reduce load or stop to let transmission cool; check oil level/cooler. | |
| Brake System | RED | A general brake system warning on the S500 indicates low hydraulic pressure or worn pads. | Check brake fluid reservoir and pad wear; do not drive until resolved. | |
| ABS | AMBER | ABS malfunction compromises the S500's braking on slippery roads, but standard brakes remain active. | Drive cautiously to a workshop; ABS will be disabled until fixed. | |
| Parking Brake | RED | Indicates the parking brake is engaged or a fault exists in the S500's spring brake system. | Release the brake; if light stays on, check air pressure or adjust brake. | |
| Tire Pressure (TPMS) | AMBER | One or more tires on your S500 have low pressure, affecting fuel efficiency and safety. | Check and inflate tires to the recommended pressure as soon as possible. | |
| Airbag (SRS) | RED | The S500's airbag system has a fault; airbags may not deploy in a crash. | Have the system inspected by a Scania dealer immediately. | |
| Seat Belt | RED | This light reminds the S500 driver that the seat belt is not fastened. | Fasten your seat belt before moving. | |
| Glow Plug / Preheat | AMBER | The S500's intake pre-heating system is active for cold starts; stays on briefly. | Wait for the light to turn off before starting the engine. | |
| DPF / Regeneration | AMBER | The diesel particulate filter in your S500 is being cleaned automatically; idle or drive to complete. | If flashing, increase speed to aid regeneration; consult manual if solid. | |
| DEF / AdBlue | AMBER | AdBlue level is low in the S500; the system will eventually limit engine power if not refilled. | Add AdBlue at the next opportunity; see manual for capacity. | |
| Water in Fuel | AMBER | Water has accumulated in the S500's fuel filter, risking injector damage if not drained. | Drain the fuel filter water separator as per maintenance schedule. | |
| Low Fuel | AMBER | Fuel level in the S500's tank is low; refill soon to avoid running out on the highway. | Refuel at the nearest station; the light turns off after filling. | |
| High Beam | BLUE | Indicates the high beam headlights are switched on for better night visibility in the S500. | Dim when approaching oncoming traffic to avoid glare. | |
| Power Steering (EPS) | RED | The S500's electronic power steering has failed, making steering very heavy. | Stop safely; do not drive without power steering assistance. | |
| Cold Coolant | GREEN | Engine coolant is below optimal temperature; common during cold starts on the S500. | Drive gently until the engine warms up; no action needed if persistent. | |
| Reduced Power (Limp Mode) | AMBER | Engine power is limited to protect the S500's drivetrain from a detected fault. | Drive to a workshop at reduced speed; avoid heavy loads. | |
| Air Filter | AMBER | The S500's air intake filter is partially clogged, reducing engine efficiency. | Replace the air filter during next service interval. | |
| Fuel Filter / Water Separator | AMBER | Fuel filter needs replacement or water drained to keep the S500's fuel system clean. | Replace the fuel filter as per scheduled maintenance. | |
| Service / Hour Meter | GREEN | Indicates the S500 is due for scheduled maintenance based on engine hours and distance. | Book a service at an authorized Scania workshop. | |
| Work Lights | GREEN | The work area lights on the S500 are turned on for loading/unloading in darkness. | Turn off when not needed to avoid draining the battery. | |
| Beacon / Rotating Light | GREEN | The roof-mounted beacon is active, alerting others that the S500 is stationary or working. | Use only when required by regulations; turn off when driving. | |
| Differential Lock | AMBER | The S500's rear differential is locked for extra traction on slippery surfaces. | Unlock the diff when on pavement to prevent drivetrain damage. | |
| PTO Engaged | AMBER | The power take-off is active on the S500, driving auxiliary equipment. | Disengage PTO before driving to avoid mechanical damage. | |
| Air Brake Pressure (Low) | RED | Air pressure in the S500's braking system is dangerously low, reducing brake effectiveness. | Stop immediately; allow compressor to build pressure or check for leaks. | |
| Engine / Exhaust Brake | GREEN | The auxiliary braking system (retarder) is active, helping slow the S500 without using service brakes. | Can be used for downhill control; no action needed unless malfunction. | |
| Trailer | GREEN | A trailer is properly connected and detected by the S500's electrical system. | Ensure trailer brakes are working before departure. | |
| Battery Discharge (BDI) | AMBER | The S500's battery is being drained while parked due to electrical loads. | Turn off lights and accessories; check battery condition if persistent. | |
| Low Oil Level | RED | Engine oil level is below the minimum in the S500's 35-liter oil pan. | Add approved oil to the correct level immediately. | |
| Brake Fluid Level | RED | Brake fluid reservoir is low, indicating possible leaks or worn pads on the S500. | Check brake system for leaks; top up fluid and inspect pads. | |
| Stability Control Off | AMBER | Electronic stability program is manually disabled on the S500; no traction assistance. | Turn on ESP again for safe driving on slippery roads. | |
| Door Open | RED | One of the S500's doors is not fully closed, creating a safety hazard. | Stop and close all doors securely before driving. | |
| High Exhaust Temp (HEST) | AMBER | Exhaust temperature is elevated due to DPF regeneration or heavy load on the S500. | Avoid parking over flammable materials; regeneration will complete naturally. | |
| Washer Fluid Low | AMBER | Windshield washer fluid level is low; can affect visibility in dirty conditions. | Refill washer fluid reservoir with appropriate fluid. |
39 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
- Radiator fan failure
- Thermostat stuck closed
What to do
Stop the S500 immediately and let the engine cool. Check coolant level and look for leaks. If the fan is not running when hot, inspect the fan clutch or electrical connection. If problem persists, call roadside assistance.
Air Brake Failure
Common causes
- Compressor fault
- Air leak in lines
- Frozen moisture in winter
What to do
Do not move the S500. Listen for air leaks around valves and connections. Check the air dryer and drain valves. If pressure drops rapidly, contact Scania emergency service for towing.
Total Power Loss
Common causes
- Fuel starvation
- Electrical short
- Engine computer failure
What to do
Try to coast safely to the shoulder. Check fuel level and prime the system if needed. Attempt restart after waiting a minute. If no restart, call Scania assistance; the S500's 13-liter engine may need ECM reset.
Transmission Overheat
Common causes
- Overloading
- Low gearbox oil
- Cooler blockage
What to do
Pull over and put the S500 in neutral. Let the transmission idle to cool. Check fluid level (note Scania Opticruise uses specific oil). If light stays on, do not drive further; request tow.
Brake Complete Failure
Common causes
- No air pressure
- Brake fluid leak
- Worn out brakes
What to do
Use engine brake and parking brake gently. Shut off engine to preserve remaining air. Do not continue; call for recovery. The S500's braking system is fully pneumatic; loss of air means no service brakes.
Frequently Asked Questions
What does the amber triangle with '!' mean on my Scania S500?
That's the Master Caution light — it means a non-critical fault has been detected. Check the center display for details and schedule service soon.
Why is my S500 showing 'Reduced Power' light?
The S500 enters limp mode to protect the engine or gearbox from a fault. Drive to a workshop at reduced speed; avoid heavy loads.
How do I manually regenerate the DPF on my S500?
The S500 regenerates automatically. If the DPF light is solid, drive at highway speeds until it clears. If flashing, stop and idle with hood open to complete the process.
What should I do if the air pressure warning comes on while driving?
This is critical for the S500's air brakes. Stop as soon as safely possible, idle the engine to build pressure, and check for audible leaks. If pressure doesn't rise, call for service.
Can I ignore the 'Low AdBlue' warning for a while?
No — the S500 will eventually limit power and then disable startup if AdBlue runs out. Refill with certified fluid at the next opportunity.
Why does the glow plug light stay on after starting my S500?
If it stays on, it indicates a fault in the intake preheating system. This can cause hard starts in cold weather; have the S500's glow plugs checked by a dealer.