There are various types of Mercedes warning lights. Here’s a short list of common warning lights and how they should be handled:

Stands for Anti-Lock Brake System that is deactivated because of malfunction. This can continue to normally function without the interference of Electronic Stability Program, Electronic Brake-Force Distribution, Brake Assist, and Hill Start.

Airbag Light

Malfunction in the Supplemental Restraint System which can potentially affect an airbag to inescapably deploy during an accident. Hence, it’s recommended to bring the car to any repair facility that works on Mercedes.

Brake Light

The parking brake is on or another brake problem could be occurring.

Red coolant light can be seen when there’s too low coolant level or when the temperature of the coolant is over 200 degrees. Do not drive your car since the engine can be significantly damaged. Never open the coolant cap when engine is hot.

Check Engine Light

Check Engine Light function light could mean an error with a control module, sensor coil, ignition system, fuel system, exhaust system, or fuel injection system. Modern Mercedes have about 50 control modules with thousands of possible codes. The engine can go into limp home emergency mode and car will drive slowly or stop completely.

Electronic Stability Program or Electronic Stability Control is deactivated. It will not make the car stable once it begins to skid or if the wheels are spinning. Most cars have an ESC button and this appears within a yellow triangular shape, the ESC has intervened due to skidding risk.

Gas Light

Fuel is at low level or the pressure in fuel system is too low. Fuel-filler cap may not correctly close or there is leak in the fuel system.

Seat Belt Indicator

The warning lamp for seat belt tells you to fasten your seat belt. Also, if you are driving over 15 mph, you will hear a warning alert.

Tire Pressure Light

Insufficient pressure in the car tires or it has significantly dropped. The best thing to do is to stop and check your tires.

Traction Off Light

ESP or ESC system is deactivated. It won’t stabilize your car if it skids or the wheels start to spin. You can reactivate the ESC system or immediately bring it to auto service.

Battery Light

Battery isn’t charging which is possibly caused by a faulty alternator, vehicle electronics malfunction or a broken belt.

Brake pads have reached the wear limit making it necessary for replacement.

Steering Wheel

Power steering support is broken down so you need to utilize more force in steering the vehicle. You may also hear an audible warning tone.


A light bulb which may also accompany a message seen on your dashboard which states the particular light that has failed.

Glow Plug

Diesel engines need heat within the cylinders in order to efficiently operate. Supplied by the glow plugs once the engine system is cold. This light illuminates when ignition is started while heating the plugs for quick engine start. The images you will see appear like loops or the coil is yellow or amber in color.

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