C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

When car idles, smell oil - under hood see oil staining on tank, blwn head gasket??

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Mar 13, 2012 | 05:01 PM
  #1  
NHc320's Avatar
Thread Starter
Newbie
 
Joined: Mar 2012
Posts: 4
Likes: 0
Mercedes C320 4 Matic
When car idles, smell oil - under hood see oil staining on tank, blwn head gasket??

Hello - thank you for taking the time to read this and hopefully have some advice.

We have a 2005 Mercedes c320 4 matic with 49,800 miles. We have only driven the car a few times this winter and each time we have started it (past couple months) we smell oil, or burnt oil when we get in the car.

The oil reading in the car says it is normal and not yet time for an oil change.

When we looked in the car the other day - we could see some oil staining at the seal on the oil tank. Then there is 3 or 4 tubes at the top....the first few tubes were all dry and the last tube (which has plastic around it) looked wet/stained with oil.

We just had the car at the mercedes dealership for a radio problem - which resulted in a replaced amplifier and alot of expense and we hope this isnt something too big.

My husband who is not a car guy, said it may be a blown head gasket (hope not). If anyone has had to replace that - what sort of cost are we looking at.

Any other ideas of what this may be or why it is happening?

Thanks alot!

Last edited by NHc320; Mar 13, 2012 at 05:02 PM. Reason: wrong title
Reply
Old Mar 13, 2012 | 06:52 PM
  #2  
samaritrey's Avatar
Super Moderator
15 Year Member
 
Joined: Mar 2007
Posts: 5,295
Likes: 22
From: VA
THE C350
Can you get us a picture
Reply
Old Mar 13, 2012 | 07:24 PM
  #3  
NHc320's Avatar
Thread Starter
Newbie
 
Joined: Mar 2012
Posts: 4
Likes: 0
Mercedes C320 4 Matic
More info on my original post

My husband has clarified that the small amount of oil staining is located near the spark plugs on the head of the engine...around the gasket of the block. It's only a small amount and doesn't appear to be the full length of the gasket, only in a small area. The smell only occurs when car idles to warm up, it is not noticed at a stop light or anything.

Yes - thank you for your reply, tomorrow I will take a picture and post. Thanks!
Reply
Old Mar 13, 2012 | 07:30 PM
  #4  
samaritrey's Avatar
Super Moderator
15 Year Member
 
Joined: Mar 2007
Posts: 5,295
Likes: 22
From: VA
THE C350
also if possible take the air cleaner off because our engines tend to have a leak on the the breather covers. The air cleaner comes off really easy just remove the two tubes and the whole cover pops straight up and off.
Reply
Old Mar 13, 2012 | 08:10 PM
  #5  
ND2020's Avatar
Member
 
Joined: Sep 2010
Posts: 238
Likes: 4
From: Springfield, MO
2004 C320 Sport
Originally Posted by samaritrey
also if possible take the air cleaner off because our engines tend to have a leak on the the breather covers. The air cleaner comes off really easy just remove the two tubes and the whole cover pops straight up and off.
+1
Reply
Old Mar 14, 2012 | 07:34 PM
  #6  
NHc320's Avatar
Thread Starter
Newbie
 
Joined: Mar 2012
Posts: 4
Likes: 0
Mercedes C320 4 Matic
Here are the pics

Any ideas?

Thanks!
Attached Thumbnails When car idles, smell oil - under hood see oil staining on tank, blwn head gasket??-photo-1-.jpg   When car idles, smell oil - under hood see oil staining on tank, blwn head gasket??-photo-2-.jpg   When car idles, smell oil - under hood see oil staining on tank, blwn head gasket??-photo-3-.jpg   When car idles, smell oil - under hood see oil staining on tank, blwn head gasket??-photo.jpg  
Reply
Old Mar 14, 2012 | 07:44 PM
  #7  
NHc320's Avatar
Thread Starter
Newbie
 
Joined: Mar 2012
Posts: 4
Likes: 0
Mercedes C320 4 Matic
Please see pics - blown head gasket?

We have noticed an oil smell when the car is started and idles.

2005 c320 4 matic with only 49,800 miles.

This is what we see.....

Any ideas? If it looks like a head gasket - any idea of the costs to replace in New Hampshire? Has anyone ever had it done outside of a MB dealership?

Thanks for your help!

It wont let me upload the pics again. Please see my post yesterday -
'When car idles, smell oil - under hood see oil staining on tank, blwn head gasket??"
Reply
Old Mar 14, 2012 | 08:11 PM
  #8  
ND2020's Avatar
Member
 
Joined: Sep 2010
Posts: 238
Likes: 4
From: Springfield, MO
2004 C320 Sport
The first pic with the oil on the coil pack is likely the recirculating cover. If you or your husband can pop the air filter assembly off to confirm it as Trey mentioned above. It's a common problem. The other photos does make it look like the head gasket is leaking, but I would definitely pop the filter cover first.

EDIT: I phrased that wrong, I had head gasket in my head from your other thread. As Glyn pointed out below it is a valve cover gasket that is likely the problem.

Last edited by ND2020; Mar 15, 2012 at 12:14 PM.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old Mar 14, 2012 | 08:14 PM
  #9  
ND2020's Avatar
Member
 
Joined: Sep 2010
Posts: 238
Likes: 4
From: Springfield, MO
2004 C320 Sport
See Trutaing's thread:

https://mbworld.org/forums/showthrea...culating+cover
Reply
Old Mar 14, 2012 | 08:26 PM
  #10  
Benzos4theteam's Avatar
Junior Member
 
Joined: Feb 2012
Posts: 65
Likes: 0
From: San Antonio , Texas
2001 C320
MB quoted me for 2200$ here in san antonio, texas

my gf dad fixed the head gasket on my BMW for free.

and he's currently fixing the head gasket on my c320 . he will hook i up, but expect to get charged a lot , he told me its pretty hard and everything is mercedes Benz specific.
Reply
Old Mar 14, 2012 | 09:04 PM
  #11  
samaritrey's Avatar
Super Moderator
15 Year Member
 
Joined: Mar 2007
Posts: 5,295
Likes: 22
From: VA
THE C350
Yeah could be either or both. need a picture with the air cleaner off.
Reply
Old Mar 14, 2012 | 10:08 PM
  #12  
sammydragon3's Avatar
Super Member
 
Joined: Dec 2010
Posts: 712
Likes: 2
From: chicago
2005 c230 kompressor 2003 s500 94 wrangler
u most likely have a valve cover gasket leaking. or the spark plug seals need replaced

if u had a blown head u'd be losing coolant....CHECK THE COOLANT
Reply
Old Mar 15, 2012 | 01:20 AM
  #13  
SeaCoupe's Avatar
MBWorld Fanatic!
15 Year Member
 
Joined: Jan 2006
Posts: 3,212
Likes: 8
From: Pasadena, CA
2002 C230K, 2013 BMW 328, 2015 BMW X5
Originally Posted by sammydragon3
u most likely have a valve cover gasket leaking. or the spark plug seals need replaced

if u had a blown head u'd be losing coolant....CHECK THE COOLANT
Stupid Sammy, your advice is full of ****. I detest you being here.
Reply
Old Mar 15, 2012 | 04:59 AM
  #14  
anonymousmoose's Avatar
Super Member
15 Year Member
 
Joined: Oct 2010
Posts: 645
Likes: 2
From: Perth, Australia
Audi A4 Quattro 2013
Originally Posted by Benzos4theteam
my gf dad fixed the head gasket on my BMW for free.

and he's currently fixing the head gasket on my c320 .
I think you need to marry this girl .
Reply
Old Mar 15, 2012 | 05:15 AM
  #15  
Carsy's Avatar
MBWorld Fanatic!
 
Joined: Mar 2008
Posts: 3,714
Likes: 56
From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
Originally Posted by SeaCoupe
Stupid Sammy, your advice is full of ****. I detest you being here.
Ease up, SeaCoupe, free speech & all that .

A blown head gasket can present itself as a coolant leak internally or externally.

It would be a good idea to check the coolant level & oil quality when suspecting a head gasket leak.
Reply
Old Mar 15, 2012 | 11:34 AM
  #16  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
There are no plug seals on a M112 engine. It's a SOHC engine - 3V/C.

This is not a blown head gasket from what is shown in the pics. It's a recirc cover leak or a cambox cover leak or both.
Reply
Old Mar 15, 2012 | 12:12 PM
  #17  
LILBENZ230's Avatar
MBWorld Fanatic!
 
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
Tru created a thread called "resealing the recirculating cover" or something of that nature. It might be of big help if it is indeed the recirc cover leaking.
Reply
Old Mar 15, 2012 | 03:45 PM
  #18  
Moreira_C230's Avatar
Senior Member
 
Joined: Apr 2011
Posts: 276
Likes: 0
From: Boston
2006 C230 SS
Originally Posted by anonymousmoose
I think you need to marry this girl .
most definitively a keeper
Reply
Old Mar 15, 2012 | 04:56 PM
  #19  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
It's posted above!
Reply
Old Mar 15, 2012 | 04:58 PM
  #20  
LILBENZ230's Avatar
MBWorld Fanatic!
 
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
So it is..

Last edited by LILBENZ230; Mar 15, 2012 at 05:01 PM.
Reply
Old Mar 15, 2012 | 05:01 PM
  #21  
C230 Sport Coup's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2002
Posts: 7,263
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
Dude, you're the only guy I know who's in witness protection from the fake mafia on FB.
Chill my brutha.

Originally Posted by SeaCoupe
Stupid Sammy, your advice is full of ****. I detest you being here.

Last edited by C230 Sport Coup; Mar 15, 2012 at 05:09 PM.
Reply
Old Mar 15, 2012 | 10:20 PM
  #22  
Benzos4theteam's Avatar
Junior Member
 
Joined: Feb 2012
Posts: 65
Likes: 0
From: San Antonio , Texas
2001 C320
Lol thanks guys!
Reply
Old Mar 16, 2012 | 09:41 AM
  #23  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Threads merged!
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 1 votes, 5.00 average.


All times are GMT -4. The time now is 02:40 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE