W211 320 cdi oil level

[oddjob]

Hi guys,

Just checked the oil level on the screen whilst parked up waiting and got reading of 4.5l, bear in mind the engine is warm. Is this too low?

Thanks

Jon

 

[grumpyoldgit]

That does sound low, have you not had the 'Add Oil' warning light?
I'm not familiar with the E Class OBD, but would imagine it's similar to the C Class on which the following info is based.

Presume you are accessing the oil level reading using the service menu, as it displays 4.5l.
What reading do you get if you use the normal 'Check Oil' menu, does it say oil level ok or to add oil?

What is the oil capacity? If you're unsure try using the following link to enter your registration number and it will give you the capacity info.

http://www.mobil.co.uk/UK-English-LCW/carengineoils_which-oil.aspx

Be careful not to OVERFILL though as it could cause damage to the engine.

 

[oddjob]

Thanks for replying. I wasn't sure of the capacity but the mobil site shows 7.3l which means my current level is very low. I've just got home so going to let it cool down and try it then.

Thanks for the link, very helpful

 

[oddjob]

Also I haven't seen a check oil option on the obd yet, and I've had no oil warning lights or messages up.

 

[grumpyoldgit]

Also I haven't seen a check oil option on the obd yet, and I've had no oil warning lights or messages up.

It may be different on the E Class. What instructions does the handbook give?

On my C Class, scrolling through the menus it brings up the option to 'Check Oil' and gives instruction to turn the ignition key to the next position, in order to get a reading, which is either Oil level OK, or Add oil and the quantity required. The reading will not be taken if I haven't waited the required time after turning the engine off and an advisory to wait pops up.
To check the actual quantity I have to access it via the service menu, which is a different procedure.

As previously said, DO NOT OVERFILL. Add a lesser quantity than required and check the reading again. Mercedes are happier with a slightly lower than max level.

 

[oddjob]

In all honestly I haven't read the manual yet, they are in the office somewhere lol.

I'll have to find them and see if there is a check oil option somewhere.

I'll be sure not to overfill.

Thanks

 

[Rupz911]

Oddjob on my W211 i think i go to the outside temp setting on the menu and scroll up and down, i think it can be found on that.

Ive read lots of peoples opinions on here and they do say not to be reliant on the electronic oil level as it could be out. I had a service just over a month ago and my computer is reading 5L even though i filled 5.5L. Due to this reason i am going to get a dip stick off ebay. I will find out the correct length and post it on here. I am assuming the length will be the same from a 220 to a 320 but im not sure. If someone could clarify this would be helpful. I will post the length on Monday.