GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

07 GL320 CDI - slight smell of diesel fuel?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Mar 2, 2009 | 03:05 PM
  #1  
alx's Avatar
alx
Thread Starter
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 4,268
Likes: 253
07 GL320 CDI - slight smell of diesel fuel?

for the last few days i have noticed that after i park the truck in the garage there is a ever so faint smell of diesel fuel coming from under the hood. checked fuel filler door in the back- closed tightly.

my question to the other gl320 cdi owners is - have you noticed such smell. i would have no problem accepting that the smell is normal as long as other trucks do the same.

or i have sprung a fuel leak somewhere...

thank you in advance

alex
few cars
Reply
Old Mar 2, 2009 | 04:16 PM
  #2  
Brocktoon's Avatar
Super Member
 
Joined: Mar 2008
Posts: 903
Likes: 23
From: B.C.
GL 320cdi, Chevrolet Avalanchero, GLE 350 (on order)
Never smelt it. Only places I have detected it are at the oil filler, dipstick, and fuel cap. You might check those areas to make sure all is well.
Reply
Old Mar 2, 2009 | 04:34 PM
  #3  
StevethePilot's Avatar
MBWorld Fanatic!
 
Joined: May 2007
Posts: 2,244
Likes: 1
From: Scottsdale, AZ
2004 RX330, 2008 Scion xB, 2001 Honda Insight Hybrid, 2010 Toyot Prius v ATP
Originally Posted by alx
my question to the other gl320 cdi owners is - have you noticed such smell. i would have no problem accepting that the smell is normal as long as other trucks do the same.
Never once.
Reply
Old Mar 2, 2009 | 05:10 PM
  #4  
dieseldoc's Avatar
MBWorld Fanatic!
 
Joined: May 2008
Posts: 2,236
Likes: 162
From: DFW
2022 E350 Diamond White Metallic, 2016 GLC300 Dakota Brown Metallic
never happened
Reply
Old Mar 3, 2009 | 09:42 AM
  #5  
captivabenz's Avatar
Member
 
Joined: Dec 2006
Posts: 207
Likes: 17
From: Captiva Florida
14 GL 350, 23Chevy Bolt EV and 22 EUV
I have almost 30,000 miles (07 CDI) and have not had any problem with diesel smell.
Let us know what the mechanic finds...
Reply
Old Mar 3, 2009 | 10:52 AM
  #6  
Comfy_Couch's Avatar
Banned
 
Joined: Feb 2008
Posts: 164
Likes: 0
From: Columbus, OH
2008 GL 320 CDI
Never had this issue - but I agree check the fuel cap and filler door in case there was a spill there that's causing the odor.
Reply
Old Mar 5, 2009 | 12:22 AM
  #7  
dgiturbo's Avatar
Super Member
 
Joined: Dec 2007
Posts: 898
Likes: 9
From: Woodstock, IL
His 2019 RAM Cummins Turbo Diesel Laramie; Her's 2007 ML320 CDI P3; Mine BMW R1200R
Only thing that comes to mind under the hood is the rubber fuel hose that clamp on the fuel filter. Make sure the clamps are tight and no leaks.

Lift up the engine cover and the filter sits top center of the engine. The hose and an electrical connector are on top. Check there for your smell.
Everything else is VERY high pressure and you would probably find that leak really really fast.
Reply
Old Mar 5, 2009 | 09:42 AM
  #8  
thebishman's Avatar
MBWorld Fanatic!
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2008
Posts: 2,524
Likes: 1,007
From: Overland Park, KS
‘24 BMW iX M60
Originally Posted by alx
for the last few days i have noticed that after i park the truck in the garage there is a ever so faint smell of diesel fuel coming from under the hood. checked fuel filler door in the back- closed tightly.

my question to the other gl320 cdi owners is - have you noticed such smell. i would have no problem accepting that the smell is normal as long as other trucks do the same.

or i have sprung a fuel leak somewhere...

thank you in advance

alex
few cars
Alex,

With our '08 CDI I have on occasion smelt the exhaust from the GL. It has a very different smell than a gasoline fueled vehicle. It has been most noticable upon start-up or shut down. It does not seem to be there at all times, but perhaps it is.

Do you think the odor you are noticing is in fact from the exhaust, and not from under the hood?

Bish
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 5, 2009 | 10:40 AM
  #9  
scottybdiving's Avatar
Super Member
 
Joined: Aug 2007
Posts: 603
Likes: 0
From: Spicewood, TX
2008 GL 320, 2007 Silverado LTZ C3500 Duramax Turbo Diesel
Does anyone know how the particulate filter cleans or regenerates itself? On my Silverado, it periodically does this, usually on long steady highway runs. Often times, when I stop and get out, I notice a smell like a self-cleaning oven or like when you are burning off your gas grill. I don't drive the GL 320 often enough to have smelled this, if they even do the same thing.
Reply
Old Mar 5, 2009 | 07:12 PM
  #10  
Brocktoon's Avatar
Super Member
 
Joined: Mar 2008
Posts: 903
Likes: 23
From: B.C.
GL 320cdi, Chevrolet Avalanchero, GLE 350 (on order)
The only weird smell I ever encountered was on a very cold day and the exhaust smelt like a cross between ammonia and "simple green" but never a "diesel" smell.
Reply
Old Mar 6, 2009 | 09:15 AM
  #11  
Kaumajet's Avatar
Member
 
Joined: Jan 2008
Posts: 118
Likes: 0
From: Ottawa, Canada
2008 GL320CDI
I've had a slight Diesel smell on very cold mornings from time to time. Nothing found so far, and have never actually seen any fuel anywhere.
Reply

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


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 12:38 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