Fuel Door Latch - Mercedes-Benz Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 11 (permalink) Old 04-18-2019, 06:04 PM Thread Starter
BenzWorld Senior Member
 
gorj's Avatar
 
Date registered: Aug 2017
Vehicle: 2006 CLK 350 Convertible
Location: Arkansas, USA
Posts: 566
Mentioned: 3 Post(s)
Quoted: 100 Post(s)
(Thread Starter)
Fuel Door Latch

I have often wondered why the fuel door latch only engages when the engine is started. It seems to me it would make more sense if the door were latched when the vehicle is parked and not running - to prevent theft of your fuel. All other vehicles I have owned that had a fuel door, latches had to be activated by a button or lever inside the vehicle before they would open. I do know that one should never open the fuel cap when the engine is running, but it would seem having a theft deterrent would trump that.Today, with idiots running around putting "stuff" in fuel tanks, there is even more of a reason to have a locking door! What were the German engineers thinking?
gorj is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 04-18-2019, 11:15 PM
BenzWorld Elite
 
Benzyle's Avatar
 
Date registered: Nov 2013
Vehicle: MY05 CLK55 AMG , MY05 CLK320,Former,C180 Kompressor,Jensen Healey,Ford Capri V6,Alfa GTV.
Location: Australia's East Coast
Posts: 1,345
Mentioned: 2 Post(s)
Quoted: 288 Post(s)
Hi Gorj ,
I never knew it locked when the engine is running ,,,,you learn something every day,,,
If it locked when the car was parked (and not locked ) ,,how would you open it to re-fuel ?

When you lock the car ,,the fuel flap locks at the same time...giving you security.
Benzyle is offline  
post #3 of 11 (permalink) Old 04-19-2019, 12:01 AM Thread Starter
BenzWorld Senior Member
 
gorj's Avatar
 
Date registered: Aug 2017
Vehicle: 2006 CLK 350 Convertible
Location: Arkansas, USA
Posts: 566
Mentioned: 3 Post(s)
Quoted: 100 Post(s)
(Thread Starter)
Quote:
Originally Posted by Benzyle View Post
Hi Gorj ,
I never knew it locked when the engine is running ,,,,you learn something every day,,,
If it locked when the car was parked (and not locked ) ,,how would you open it to re-fuel ?

When you lock the car ,,the fuel flap locks at the same time...giving you security.
I did not know that. I have never tried to open the fuel door when the vehicle is locked. So the engineers are smart - the door is only open when the vehicle is unlocked and the ignition is off. That makes sense. A 2006 Mercedes has better technology than my wife's 2017 vehicle loaded with all the latest technology, yet you have to pull a lever to open the fuel door!! But I do like the adaptive cruise, the push button start, the navigation, and the lane departure warning in her car.
gorj is offline  
Sponsored Links
Advertisement
 
post #4 of 11 (permalink) Old 04-19-2019, 12:49 PM
BenzWorld Elite
 
IWantedaJag's Avatar
 
Date registered: Jan 2014
Vehicle: 2008 AMG CLK63 Conv., 2012 R350 4-Matic, Wife's 2015 C300 sedan
Location: Cypress Texas
Posts: 8,356
Mentioned: 7 Post(s)
Quoted: 2492 Post(s)
I've never tried opening it when driving either, although rightly or wrongly I long ago stopped switching the engine off when fuelling. I figure if modern tires conduct well enough to conduct lightning they conduct well enough to dissipate static (even if the engine wasn't running and they didn't it would spark on the pump nozzle and kaboom!) and engine heat is too far away to worry about.

"Semper In excretio, solum profundum variat" - unknown
They called me mad, and I called them mad, and damn them, they outvoted me" - Nathaniel Lee
IWantedaJag is online now  
post #5 of 11 (permalink) Old 04-19-2019, 02:21 PM
BenzWorld Junior Member
 
rcunningham321's Avatar
 
Date registered: Jul 2017
Vehicle: 2005 CLK 320 black/black
Location: Tennessee
Posts: 26
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
I also like most of the modern touches, but I'm not yet ready for lane departure warning. I've had it on rental cars and it feels like someone else is also driving the car with me - no thanks.

I'll stick with basic 2005 CLK features. One thing that did surprise me on my car was the rain-sensing wiper system. Still don't see that on some more modern cars.
rcunningham321 is offline  
post #6 of 11 (permalink) Old 04-20-2019, 06:23 AM Thread Starter
BenzWorld Senior Member
 
gorj's Avatar
 
Date registered: Aug 2017
Vehicle: 2006 CLK 350 Convertible
Location: Arkansas, USA
Posts: 566
Mentioned: 3 Post(s)
Quoted: 100 Post(s)
(Thread Starter)
Quote:
Originally Posted by IWantedaJag View Post
I've never tried opening it when driving either, although rightly or wrongly I long ago stopped switching the engine off when fuelling. I figure if modern tires conduct well enough to conduct lightning they conduct well enough to dissipate static (even if the engine wasn't running and they didn't it would spark on the pump nozzle and kaboom!) and engine heat is too far away to worry about.
Switching the ign off while refueling is no so much about causing a fire but it messes with the evap control system. I have even seen the check engine light come on after refueling with engine on.
gorj is offline  
post #7 of 11 (permalink) Old 04-22-2019, 05:39 AM
Outstanding Contributor
 
keyhole's Avatar
 
Date registered: Sep 2006
Vehicle: 2004 CLK 240 Coupe
Location: Norfolk. UK
Posts: 11,313
Mentioned: 20 Post(s)
Quoted: 598 Post(s)
Quote:
Originally Posted by gorj View Post
Switching the ign off while refueling is no so much about causing a fire but it messes with the evap control system.
Over here in the UK, fuel filling stations often have a prominent sign instructing drivers to stop the engine while filling.
keyhole is offline  
post #8 of 11 (permalink) Old 04-22-2019, 07:51 AM Thread Starter
BenzWorld Senior Member
 
gorj's Avatar
 
Date registered: Aug 2017
Vehicle: 2006 CLK 350 Convertible
Location: Arkansas, USA
Posts: 566
Mentioned: 3 Post(s)
Quoted: 100 Post(s)
(Thread Starter)
Quote:
Originally Posted by keyhole View Post
Over here in the UK, fuel filling stations often have a prominent sign instructing drivers to stop the engine while filling.
I remember seeing signs posted like that here in the US, but have not seen them recently. It has always just made sense to me to turn off the engine. But I live in "bubba" country in Arkansas where they do not do much that makes sense - like drive 4 wheel drive pickup trucks that are two foot off the ground!
gorj is offline  
post #9 of 11 (permalink) Old 04-25-2019, 08:27 AM
Outstanding Contributor
 
keyhole's Avatar
 
Date registered: Sep 2006
Vehicle: 2004 CLK 240 Coupe
Location: Norfolk. UK
Posts: 11,313
Mentioned: 20 Post(s)
Quoted: 598 Post(s)
Quote:
Originally Posted by gorj View Post
I have often wondered why the fuel door latch only engages when the engine is started.
I was surprised to read this recent statement, and I doubted that it was so. However, like others here I had never checked it (until today) and I can report that on my 2004 CLK the fuel flap does not lock immediately with the engine running. Maybe later models are different?

Of course, if the cluster is set to 'automatic locking', all the doors, the trunk lid and the fuel flap will all lock after the car reaches 9 mph.

Incidentally, in an emergency you can unlock the fuel flap manually by turning a release knob located behind the right side trim panel in the trunk. This is covered in the Operator's Manual.
Benzyle likes this.
keyhole is offline  
post #10 of 11 (permalink) Old 04-27-2019, 04:53 PM
Moderator
 
rudeney's Avatar
 
Date registered: Dec 2004
Vehicle: CURRENT: 2011 SL550, 2010 ML350 FORMER: 2007 CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD
Location: Birmingham, AL
Posts: 18,371
Mentioned: 36 Post(s)
Quoted: 1665 Post(s)
Lifetime Premium Member
Garage
The fuel door locks and unlocks with the other doors and trunk. If you are in the car with the engine running and the doors are locked, and you only open the driver's door, the other doors (and the fuel door) stay locked. However, if you shut the engine off and open the driver's door, then all doors (including the fuel filler).

--

- RODNEY


So you want to send me a private message? Please read this first:


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


My Stable:


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
rudeney is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > Mercedes-Benz Coupe/Convertible Forums > C209/A209 CLK-Class

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
Report: Fukushima, Japan Reactor Now In Meltdown After Explosion eurospec380se Off-Topic 669 06-26-2017 05:06 AM
W140 Fix it Yourself Articles Merc600sec W140 S-Class 265 11-04-2015 11:17 PM
Fuel System Service Procedure - Fuel Distro, Lines and Injectors BenzHacker R/C107 SL/SLC Class 10 03-29-2010 04:36 AM
Code Help! jporrata W202 C-Class 10 07-31-2009 08:02 PM
Fuel pressure regulator Vs accumulator NewMBie W126 S,SE,SEC,SEL,SD,SDL Class 2 03-22-2005 01:03 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