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Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust >> Exhaust System - 257 Chassis >> Safety Precautions >> Risk Of Burn Injuries, Suffocation And Poisoning When Working On The Exhaust System And The Components Connected To It. Risk Of Suffocation And Risk Of Poisoning Caused By Inhalation Of Gaseous And Solid Components Of The Exhaust - AS49.00-Z-0001-01A

Risk Of Burn Injuries, Suffocation And Poisoning When Working On The Exhaust System And The Components Connected To It. Risk Of Suffocation And Risk Of Poisoning Caused By Inhalation Of Gaseous And Solid Components Of The Exhaust - AS49.00-Z-0001-01A

Engine all (4xWD, CAR, Light transporter, TRUCK, UNIMOG, smart) 

Wear protective clothing and safety glasses. 

Use the extraction system. Move people out of the danger zone. 

MODIFICATION NOTES

16.07.2021 Information on engine 254.9 added. Working on exhaust gas turbocharger  

Risk of burn injuries! 

The exhaust system and all components connected to it are very hot during operation and remain so after the engine is switched off. Do not touch hot parts.

Risk of suffocation and poisoning! 

Exhaust gases may cause cancer.

At higher concentrations, irritation of mucous membranes and headaches may occur. Carbon monoxide may cause damage to unborn children.

Health hazard! 

IMPORTANT Engine 254.9

When working on exhaust gas turbocharger

Health hazard caused by inhaling/skin contact with carcinogenic and cobalt-containing corrosion products that are hazardous to health.

Risk of injury! 

Risk of injury to the eyes, skin, and respiratory paths due to contact with exhaust residues such as diesel particulates and diesel soot.

IMPORTANT Engine 254.9

When working on exhaust gas turbocharger

Risk of injury to eyes caused by contact with metal particles.

Safety instructions/precautions 

IMPORTANT Engine 254.9

When working on exhaust gas turbocharger

Wear protective gloves (nitrile gloves as per EN 374).

Wear safety glasses (goggles).

Wear respiratory protection (FFP3 protective mask).

First-aid measures 

In the event of inhalation: 

Move victim from the hazard area to fresh air without endangering yourself and consult a physician immediately.

After contact with skin: 

Immediately wash affected areas of the body with plenty of soap and water. Employees who have experienced skin contact must consult a physician immediately.

After contact with eyes: 

Rinse eyes thoroughly with running water for at least 10 minutes with the eyelids wide open and contact an eye doctor immediately.