Notes On Avoiding Damage Through Contamination And Foreign Objects - AH00.00-P-5000-01A

Model all (4xWD, CAR, Light transporter, smart) 

Information on affected component parts 

With each maintenance and repair work to the engine as well as to the ancillary assemblies and detachable parts comes the danger of property damage caused by contamination and foreign bodies.

Particularly at risk are:

• Exhaust gas turbocharger
• Hot film mass air flow sensor
• Compressor
• Emission control system
• All components involved in gas exchange

Notes on removal/installation 

Openings through which soiling or foreign objects are introduced into the engine, its ancillaries or detachable parts, must be sealed immediately.

For this purpose, suitable, clean covers and plugs or clean, lint-free rags are to be used.

Do not forget to remove all covers, plugs or rags when assembling or when finalizing the work.

This avoids any damage and complaints about engine running characteristics.

Before assembling or finalization work all components are to be checked for soiling, left-over foreign objects and any fluids, and if any are found they are to be removed.

Information on cleaning 

For cleaning, use only clean tools and clean, lint-free rags.

Residues of cleaning agents and removed contaminants must be cleared from the engine, ancillary assemblies and detachable parts.

Do not  use compressed air for removing any soiling.

Otherwise, components (e.g. the hot-wire element of the hot film mass air flow sensor) could be damaged or contamination could enter the engine, ancillary assemblies and detachable parts without being noticed.