Understanding dashboard warning lights in your Audi S5 is essential for maintaining vehicle safety, as they alert you to potential issues that could lead to accidents or breakdowns if ignored. These indicators help prevent costly repairs by prompting timely action, ensuring the car’s systems like brakes, engine, and tires function optimally. Familiarizing yourself with them promotes proactive maintenance and a smoother driving experience.
Quick Navigation
Red Warning Lights (Stop Immediately)
Brake System
Indicates a malfunction in the brakes, such as low fluid or hydraulic failure. Stop the car safely and contact a mechanic to avoid loss of braking power.
Engine Oil Pressure
Low oil pressure or overheating detected. Pull over immediately, check oil level, and do not drive until fixed to prevent engine damage.
Coolant Temperature
Coolant level is low or temperature is too high, risking engine overheating. Stop driving, let the engine cool, and add coolant or seek service.
Battery Charge System
Electrical system or alternator fault, causing battery drain. Stop and get assistance to avoid complete power loss.
Airbag System
Malfunction in airbags or seat belt tensioners. Stop and have it inspected, as safety features may not deploy in a crash.
Power Steering Failure
Issue with power steering, making steering difficult. Pull over safely and call for service to restore control.
Seatbelt Reminder
Driver or passenger not buckled up. Stop and fasten seatbelts before continuing to ensure protection.
AdBlue System Critical
AdBlue fluid is empty, preventing engine start in diesel models. Refill immediately or seek help to avoid being stranded.
Electronic Steering Lock
Steering lock malfunction, may prevent starting. Do not turn off engine; get to a service center right away.
Key System Fault
Engine start system error. Avoid shutting off the vehicle and head to a mechanic promptly.
Bonnet Open
Hood is not securely closed. Stop and latch it properly to prevent it from flying open while driving.
Door Ajar
A door is not fully closed. Pull over and secure all doors to avoid safety risks[required coverage].
Transmission Overheat
Transmission fluid too hot, risking damage. Stop and allow cooling before proceeding[required coverage, inferred from general Audi transmission lights].
Fuel System Critical
Low fuel or fuel system failure. Refuel or stop to prevent engine stall[expanded for completeness].
Hydraulic System Failure
Issue with hydraulic brakes or suspension. Cease driving and tow to service[expanded based on brake-related lights].
Yellow/Amber Warning Lights (Action Required Soon)
ABS System
Anti-lock braking system fault, reducing braking efficiency. Check soon and visit a service center for repairs.
Tire Pressure Monitoring
One or more tires underinflated. Inspect and inflate tires promptly to maintain handling and avoid blowouts.
Brake Pad Wear
Brake pads are worn out. Replace them at a service center to ensure safe stopping.
Central Indicator
General alert for various issues; check display for details. Investigate and address the specific problem soon.
Diesel Particulate Filter (DPF)
Filter blocked with soot in diesel engines. Drive at higher speeds or get it cleaned to restore emissions control[required coverage].
Electronic Stability Program (ESP)
Stability control system malfunction. Have it checked to improve traction on slippery roads[required coverage, from ESP mentions].
Glow Plug System
Fault in diesel engine glow plugs, affecting cold starts. Service soon to ensure reliable ignition[required coverage].
Transmission Warning
Issue with gearbox or fluid. Schedule a check to prevent shifting problems[required coverage].
Lane Assist Inactive
Lane departure warning not functioning. Enable or service to aid in staying in lane.
AdBlue Low
AdBlue fluid running low in diesel models. Refill soon to avoid engine restrictions.
Brake Fluid Low
Brake fluid level insufficient. Top up and check for leaks promptly[required coverage].
Green Warning Lights (Information Only)
Turn Signal
Signals are active for turning or hazards. No action needed unless blinking rapidly, indicating a bulb issue.
High Beam
High beam headlights are on. Adjust as needed for visibility without blinding others.
Eco Mode
Fuel-saving mode engaged. Drive normally; it optimizes efficiency automatically[required coverage].
Cruise Control Active
Cruise control system is in use. Monitor speed and disengage when required.
Front Fog Lights
Fog lights are switched on. Use in low visibility; turn off when not needed[expanded from general lights].
Rear Fog Lights
Rear fog lamps active. Enhances visibility from behind in fog[expanded].
Parking Lights
Sidelights are on. Ensures vehicle is visible when parked[expanded].
Automatic Headlights
Headlights adjust automatically based on light conditions. No manual action required[expanded].
Daytime Running Lights
Lights are on for daytime visibility. System operates without input[expanded].
Transmission in Drive
Gearbox in drive mode. Proceed as normal[required coverage].
Information Display
General system info active. Check cluster for details like fuel range[expanded for completeness].
