Go Back  MBWorld.org Forums > Mercedes-Benz Sedans > S-Class (W220)
help i think i drowned her >

help i think i drowned her

Notices
S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

help i think i drowned her

 
Old 03-13-2018, 06:39 AM
  #1  
Newbie
Thread Starter
 
Join Date: Apr 2017
Location: idaho
Posts: 9
Received 0 Likes on 0 Posts
2001 s430
Unhappy help i think i drowned her

put gas in a week ago and the auto shut off didn't shut off so she was over filled. romped on the gas to burn as much off as i could and made it home (6 miles away) with a bit of jumpiness, drove her for a week with no problems, went to leave work yesterday and the check engine light came on.

what should i check? or am i headed to her doctor?
helgasmom is offline  
Old 03-13-2018, 12:47 PM
  #2  
MBWorld Fanatic!
 
Join Date: Dec 2012
Location: Acworth, GA (N of Atlanta)
Posts: 1,420
Received 92 Likes on 87 Posts
2003 S430
For a simple check engine light, you can drop by an Advance Auto or other parts store - most will do a free code check for you while you wait. Be sure to be there ready to write down any codes pulled up. Let us know what the codes are.
wallyp is offline  
The following users liked this post:
helgasmom (03-13-2018)
Old 03-13-2018, 03:01 PM
  #3  
MBWorld Fanatic!
 
Join Date: Jan 2008
Posts: 5,066
Likes: 0
Received 179 Likes on 174 Posts
Mercedes
It's fine to overfill the tank

might want to unscrew the gas cap and put it back on , sometimes just a gas cap not seated correctly will throw a code
tusabes is offline  
The following users liked this post:
helgasmom (03-13-2018)
Old 03-13-2018, 08:32 PM
  #4  
Newbie
Thread Starter
 
Join Date: Apr 2017
Location: idaho
Posts: 9
Received 0 Likes on 0 Posts
2001 s430
Red face

the code said P0450-evaporative emission system pressure sensor/switch. and the check engine light didn't come on when my husband started her up to get the code. he said there was only one instance and he cleared it so she will be fine to drive-we just need to look into the cost of replacing that part in the future. whew thought i had killed her.
helgasmom is offline  
Old 03-13-2018, 11:06 PM
  #5  
MBWorld Fanatic!
 
Join Date: Dec 2012
Location: Acworth, GA (N of Atlanta)
Posts: 1,420
Received 92 Likes on 87 Posts
2003 S430
I doubt that the problem is a faulty sensor, but instead might well be that the faulty nozzle did overfill the tank. Virtually all tanks in newer vehicles have a small dome or pocket at the top of the tank for air space over the top of the fuel. This allows the warming fuel (which may be cooler in the large underground storage tank than it will be once it warms up in your tank, unless it is really cold outside) somewhere to go as it expands. If there is no expansion room, the trapped fuel in the tank, with no expansion space, may cause more pressure than desired. There is, of course, a relief valve to prevent damage to the system, but that valve holds some higher pressure in the tank until you use enough fuel to reestablish the desired air space.

Just drive the car, and if you don't see any codes, don't worry about it.
wallyp is offline  
Old 03-16-2018, 11:29 AM
  #6  
Newbie
Thread Starter
 
Join Date: Apr 2017
Location: idaho
Posts: 9
Received 0 Likes on 0 Posts
2001 s430
helga has been fine since my husband cleared the code, no hesitating or jumpiness, we bought her used with 110,540 miles on her and i have added close to 7000 more in the year i owned her-my family lives in Utah, but i don't know if she has had other issues or how the previous owner took care of her. after we bought her we had to have a new ignition system put in-the shop said she had thrown over 99 instances of that particular code.
helgasmom is offline  
 

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

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: help i think i drowned her


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: