For appearance of the engine compartment, many models are designed plastic trim cover. Many owners of the decorative cover wipe very clean, I feel this is the love of the engine, but in fact it is just a piece of plastic only, the following is covered with sludge or intact there. So you want a thorough cleaning, you first need this plastic cover removed.
Plastic decorative cover is fixed with the clamp directly by holding pulling up on the edge of the lid can be removed. However, some models of the lid will connect to other pipes, such as the old section of POLO with VW TDI conrods is designed air filter inside the plastic decorative cover, you need to remove all the pipes before pulling down.
Remove the plastic cover, you can see the body of the engine, you will find it much more dirty than the plastic lid. Vehicles opened a few years, in the cylinder head cover oil filler cap or nearby will have some sludge, looks like a gray matte paint, want water to wash away these things may be too strenuous.
Plastic decorative cover is fixed with the clamp directly by holding pulling up on the edge of the lid can be removed. However, some models of the lid will connect to other pipes, such as the old section of POLO with VW TDI conrods is designed air filter inside the plastic decorative cover, you need to remove all the pipes before pulling down.
Remove the plastic cover, you can see the body of the engine, you will find it much more dirty than the plastic lid. Vehicles opened a few years, in the cylinder head cover oil filler cap or nearby will have some sludge, looks like a gray matte paint, want water to wash away these things may be too strenuous.