Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 11-13-2003, 03:34 AM
Registered User
Join Date: Dec 2002
Location: Southern California
Posts: 62
Gas Cap Leak!

does gas caps leak usually? gasket go bad ever? I filled up my car the other day, I didn't over fill. i stopped when it clicked as always. Today when I made short trip I smelled gas, looked inside the gas door and some gas. wiped it dry.. went driving around and again more gas. I thought it was just full but its now down 1/8 of a tank after driving 30 miles, and still leaking. HELP!
cars os 1996E320, 106000 miles. thanks!
1996 E320- 18" Chrome AMG, Bling Bling Mirrors
Reply With Quote
Old 11-13-2003, 04:44 AM
Registered User
Join Date: Oct 2002
Location: Portsmouth UK
Posts: 170
Why not stick a new one on then? - They ain't big ticket items.
230 TE (W124) 1989 with 153,000 miles on the clock - hoping for at least another 100K
Reply With Quote
Old 11-13-2003, 10:10 AM
G-Benz's Avatar
Razorback Soccer Dad
Join Date: Apr 2001
Location: Dallas/Fort-Worth
Posts: 5,711
The system is pressurized...if your cap leaks, then you will have problems with gas spewing out of the cap (especially on hot days)!

But I am concerned about the amount you are losing! A cap leak would lose trace amounts...perhaps you have a leak elsewhere.

It doesn't take much fuel to create a lot of odor!
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car
Reply With Quote
Old 11-13-2003, 12:42 PM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
MB offers "special" gas cap seal # 140-471-00-79 FOR $2.40
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
Reply With Quote
Old 11-13-2003, 01:51 PM
Registered User
Join Date: Oct 2002
Location: Ontario
Posts: 37
I had to buy and use an aftermarket, ugly looking cap when the car went through a Drive Clean test here and was told the cap failed the pressure test. I had that cap for a week and replaced it with a factory one.

Now i find wet spot under the cap sometimes before i removed the cap for fuel and it smells gas. I am 100% sure it's not from the last refuel 'cos i never overflow it.

Since it's a new cap, what else can i try to stop this?

Thanks for the advise.

92 300E 135,766 KM
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

All times are GMT -4. The time now is 05:06 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page