"Reduce Oil Level" - Mercedes-Benz Forum

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 02-12-2007, 10:30 PM Thread Starter
BenzWorld Member
 
XXSASSXX31's Avatar
 
Date registered: Jan 2007
Vehicle: 2002 G 500
Location: Southern California
Posts: 83
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
"Reduce Oil Level"

Hello everyone. So I have an 02' G 500. I went to get an oil change (I didn't go to dealership but this guy who does Benz oil) and I got my oil changed etc. So the alert "to reduce the oil level". So I went back to the guy he reduced it and he showed me the oil stick and showed me where it's full and he said it is below the threshold of the stick (sorry if I don't know the name of it) and it might be the sensor that reads wrong because the oil is never the level of full but a little bit under it. He had originally filled it with 9 quarts but lowered it to 8.5 quarts. The reduce oil level light turns on usually 10 mins after i'm driving. What's up with it and why won't it turn off and is there anything dangerous about this? Will the oil reduce gradually as I drive the car more and more? I appreciate the help...thanks!
XXSASSXX31 is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 02-12-2007, 11:18 PM
BenzWorld Elite
 
MarcusF's Avatar
 
Date registered: Apr 2005
Vehicle: 2002 CLK430
Location: Southern California
Posts: 1,681
Mentioned: 2 Post(s)
Quoted: 3 Post(s)
I don’t believe in coincidence, so I’m going to “guess” your oil change guy overfilled the sump (added too much oil). It’s either that, or at the exact moment you got your oil changed, the oil level sensor failed. It "could" happen, but that would be coincidental in nature. I have a 430. According to the factory service CD (that’s where the attached picture comes from) my car holds 8 liters. Yours “may” hold more, but I’d be more inclined to believe the warning light than internet conjecture.

If you check the dipstick when the engine is cold, and it’s right at the full mark, it has too much oil in it. That’s because oil expands when it gets hot. 8 quarts expands a lot.

If you drive a car that has too much oil in the sump, typically the oil will get aerated and foamy. Aerated oil usually doesn’t supply adequate pressure to bearings (main or cam). Also, aerated oil tends to get passed through the PCV valve and back through the intake. This oil can foul plugs, but that’s the least of your problems. That’s because the oil typically doesn’t burn and gets passed out the exhaust valve to the catalytic converter. This causes the converter’s inner core to overheat. So yes, if you just drive it, the oil level will go down, but at the expense of the plugs, bearings, and catalytic converters. Basically, you really do want to get this handled sooner rather than later.

If you don’t know how to check the oil, and you don’t have any friends who know how to check the oil, then I’d recommend that you take the car to the dealer and ask them to check the oil. If the oil is overfull, they’ll reduce the level for some minor fee. Also, if it’s overfull, you may want to find someone else to change your oil next time.

Hope this helps

One last thing I forgot to mention - the oil change guy did use a fleece filter, right? Because if he didn't, you may want to consider paying the dealer to change filters too. Cheap paper filters don't hold up well with long oil change intervals.
Attached Thumbnails
Click image for larger version

Name:	rentwreck.JPG
Views:	85
Size:	29.3 KB
ID:	116603  

Last edited by MarcusF; 02-12-2007 at 11:26 PM.
MarcusF is offline  
post #3 of 4 (permalink) Old 02-13-2007, 10:26 AM
BenzWorld Elite
 
Check Codes's Avatar
 
Date registered: Mar 2005
Vehicle: '01-E320 & 02-ST2
Location: John 15:18-19
Posts: 31,634
Mentioned: 0 Post(s)
Quoted: 35 Post(s)
I'm going to guess your guy changed your oil by the "suck method" or else he didn't have it level when he drained it. (The fact he extracted oil suggests the former.)

Either way I'd guess he didn't get all of the oil OUT, so when he filled it (even with 8.5 quarts) it remains above the correct level.

I'm thrilled that the dipstick (not the guy, the one in your engine) appears to read correctly, but I've never heard of the sensor being wrong. I'd be inclined to ask him to extract another .5 quart, and I'll bet the level on the dipstick will be close to where it was (and still well within the full range), but the warning won't return.

And in my humble opinion, once this is resolved, you should be like the warning light and not return (to this shop).

Take care and enjoy the ride,
Greg

Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery. (Winston Churchill)
Check Codes is offline  
post #4 of 4 (permalink) Old 02-13-2007, 11:06 AM
BenzWorld Elite
 
Kajtek1's Avatar
 
Date registered: Dec 2005
Vehicle: W211 E320 Bluetec R129 SL500 - $1300 car ........ Ford F350 6l
Location: CA Bay Area
Posts: 31,756
Mentioned: 9 Post(s)
Quoted: 1120 Post(s)
That reminds me a story from here about a year ago when young member used his friend for oil change.
He ended up with double amount of oil in crankcase and empty transmission
Dipstick suppose to be checked after about 1/2 to 1 HR. When mechanic checks the dipstick on engine stopped few minutes ago -it will always show slightly on lower side.
XX check the oil level on cold engine. If it is between dipstick lanes -I wouldn't worry about the light too much. In a 1000, or 2 miles some oil will burn out and the light suppose to vanish. Maybe it is just oversensitive.

Last edited by Kajtek1; 02-13-2007 at 11:26 AM.
Kajtek1 is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > General Mercedes-Benz Forums > General Mercedes-Benz

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











  • Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
     
    Thread Tools
    Show Printable Version Show Printable Version
    Email this Page Email this Page
    Display Modes
    Linear Mode Linear Mode



    Similar Threads
    Topic Author Forum Replies Last Post
    "Reduce Oil Level" message kentwb W203 C-Class 7 02-05-2007 07:46 PM
    ML Class "Check engine oil level warning" 2006 The Workshop MB W164 M-Class 4 10-18-2006 07:43 AM
    "Check engine oil level" warning SLO Town W203 C-Class 5 08-16-2006 12:14 PM
    98 E320 "Oil Level Sensor Defective" warning only once a while Sky_Line W210 E-Class 6 06-03-2006 06:31 AM

    Posting Rules  
    You may post new threads
    You may post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are On
    Pingbacks are On
    Refbacks are On

     

    Title goes here

    close
    video goes here
    description goes here. Read Full Story
    For the best viewing experience please update your browser to Google Chrome