S320 CDI gauge identity

[Timbob]

Hi,

I have just bought a s320 CDI 2001, great car .

I have just looked in the engine bay and noticed a gauge with the words 75 % and 100% with a knurled plastic knob. This is to the left of the engine when viewed from the front. Thie gauge was showing all red and when I turned the knob slightly the red moved to show some white at the 100 % end. The knob only turns one way so I am concerned what I have done?

Does anyone know what this is and more importantly what i have done?

Thanks in advance

Tim

 

[Ellsy Tanners]

Dont worry, it is there for checking the air flow through the air filter, you applie a vacum to it and it is supposed to tell you how blocked the air filter is. I have never used it, is so easy to remove the filter and inspect that i dont use it.

By turning it you reset it, if you are worried just unclip the filter housing top and inspect the filter visually.

 

[Xtractorfan]

If it is showing red change the filter, it will save you a fortune on fuel

 

[Timbob]

Thanks Ellsy, you say air filter is accessible by clips, to get inside plastic enclosure where this gauge is needs a star type socket( not got this...bah )

Can you confirm where air filter is please

thx
Tim

 

[television]

Is the car a 210 or 211

 

[Ellsy Tanners]

Sounds like a 220 Malcolm. The air filter is inside the box on the left of engine as you look at it from the front.

 

[Ellsy Tanners]

http://www.detali.ru/cat/oem_mb2.as...GA=722.626&CT=F&cat=66T&SID=52&SGR=130&SGN=03

The third picture down is your engine, the air filter is in the box on the right 800, you can see the clips around the top section.

 

[Timbob]

the car is a w220 S320 CDI

 

[Timbob]

Hi,

I have checked the link to the diagram showing the air cleaner but it does not seem to match what I see with my car.
I have attached some photos of the gauge and engine ,area

I cannot see any clips anywhere to access the air cleaner.

 

[stumo]

I cannot see any clips anywhere to access the air cleaner.

Thats the same as mine, no clips, you need to undo those 3 torx bolts along the top edge to get to the filter.

 

[Xtractorfan]

This should be the link to your car and the air cleaner
http://www.detali.ru/cat/oem_mb2.as...GA=722.626&CT=M&cat=65C&SID=09&SGR=015&SGN=01 remember you have to remove the top engine cover for complete access..I think....

 

[Timbob]

loss of coolant

thanks for your help on air cleaner.

I now have a more important problem as of this morning ....

I am losing engine coolant at about a pint a minute, makes car undriveable as coolant low comes on in 3 minutes running.

coolant is running off transmission cover plate at bottom of car and around bell housing area looks wet. I see no obvious leaks points, where should I be looking? what is likely cause?

thanks again
Tim