What does the yellow exclamation mark in a Mercedes-Benz E-Class indicate?

[DiFernando]

The appearance of an exclamation mark on the car's dashboard indicates an abnormality or fault in the corresponding system. Many indicator lights on the dashboard feature an exclamation mark, such as the tire pressure indicator, lighting fault indicator, steering system fault indicator, brake system fault light, transmission fault indicator, and wiper fault indicator. Below is a detailed explanation of the exclamation mark warning lights: General Fault: A triangle with an exclamation mark inside indicates a fault in the vehicle's general performance, components, or functions. Common issues include parking sensor faults, fuel cut-off system intervention or faults, external light faults, and engine oil pressure sensor faults. It is necessary to visit a 4S shop for inspection to identify the source of the fault. Automatic Transmission Fault: A yellow gear with an exclamation mark inside is the automatic transmission fault warning light, indicating a fault in the transmission or transmission lubricant level below the normal range. The transmission fluid should be replaced promptly. Brake System Fault: An exclamation mark inside a circle with parentheses represents a brake system warning, mainly indicating a brake system fault or low brake fluid level. Immediate inspection of the brake system is required to avoid accidents. Tire Pressure Abnormality: An exclamation mark with a horizontal line below parentheses represents the tire pressure monitoring warning light, which illuminates when the tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting Fault: A yellow bulb with an exclamation mark is the lighting fault indicator, indicating a fault in the vehicle's lights. Solution: Visit a 4S shop for inspection as soon as possible, or conduct a self-check, focusing on commonly used bulbs such as turn signals, fog lights, and interior lighting to identify the issue. General Fault: A triangle with an exclamation mark inside indicates a fault in the vehicle's general performance, components, or functions. Common issues include parking sensor faults, fuel cut-off system intervention or faults, external light faults, and engine oil pressure sensor faults. It is necessary to visit a 4S shop for inspection to identify the source of the fault. Automatic Transmission Fault: A yellow gear with an exclamation mark inside is the automatic transmission fault warning light, indicating a fault in the transmission or transmission lubricant level below the normal range. The transmission fluid should be replaced promptly. Brake System Fault: An exclamation mark inside a circle with parentheses represents a brake system warning, mainly indicating a brake system fault or low brake fluid level. Immediate inspection of the brake system is required to avoid accidents. Tire Pressure Abnormality: An exclamation mark with a horizontal line below parentheses represents the tire pressure monitoring warning light, which illuminates when the tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting Fault: A yellow bulb with an exclamation mark is the lighting fault indicator, indicating a fault in the vehicle's lights. Solution: Visit a 4S shop for inspection as soon as possible, or conduct a self-check, focusing on commonly used bulbs such as turn signals, fog lights, and interior lighting to identify the issue. In addition, during daily vehicle use, the warning lights displayed on the dashboard are divided into two colors, yellow and red, indicating different levels of severity: Yellow indicates a fault in the corresponding system that is not very serious. Reduce speed and proceed to the nearest repair point for maintenance to eliminate potential safety hazards. Red indicates a very serious problem in the corresponding system. In such cases, do not continue driving. Pull over immediately and seek professional assistance to prevent unpredictable risks to the vehicle and personal safety. Note that when the car is started, all lights will illuminate for a system self-check and will turn off after the check is completed. If a light does not illuminate when the ignition is turned on, remains lit, or lights up while driving, it indicates a fault in the related system. In such cases, seek professional assistance promptly for inspection and elimination of safety hazards.