Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




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

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-24-2000, 10:30 AM
EricSilver's Avatar
Registered User
 
Join Date: Mar 2000
Location: Fairfax, VA
Posts: 1,216
After taking my 89 260E through certain automatic car washes, I notice steam
and smoke coming out of the exhaust for a few minutes, then it stops.

It seems that water is getting into the exhaust system somewhere, and mixing
with oil residue to cause the smoking/steaming. This started a couple of
months ago after I got new tires -- and drove the car off a lift which, I
discovered when I felt the scraping under the car, was not completely
lowered. Is it possible some part of the exhaust system or catalytic
converter is loosened or cracked and allowing water to get in?

This only happens when there is an undercarriage wash. When I wash my car
myself, and spray water up the exhaust , there is no smoking.

Any help would be appreciated.

Eric Silver


Reply With Quote
  #2  
Old 05-24-2000, 12:27 PM
Registered User
 
Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
Eric, what you are seeing is condensation created inside the exhaust system when it gets rapidly cooled from the undercarriage getting soaked with water. Condensation will form inside the exhaust from rapid cooling and then reheating will blow it out. Not to worry, if you had a hole large enough to let that much water in, be assured, you would certainly be hearing it.

------------------
Jeff L
1987 300e
1989 300e
1987 BMW 325

[This message has been edited by jeffsr (edited 05-24-2000).]
Reply With Quote
  #3  
Old 05-24-2000, 10:07 PM
EricSilver's Avatar
Registered User
 
Join Date: Mar 2000
Location: Fairfax, VA
Posts: 1,216
Jeff, thanks for your reply. I figured it was something like that but was never quite sure.

Now that I think of it, the smoke/steam only appeared when the car had been hot. On those occasions when I washed it just after starting it for the first time in the day, or after it had been sitting for a few hours, there was no smoke, so your condensation explanation makes a lot of sense.

The only problem is that it is embarrasing to be spewing smoke like that -- even for a short while. Other drivers seem to get some sort of perverse thrill from seeing a disabled or malfunctioning Benz.

Thanks.

Eric
Reply With Quote
  #4  
Old 05-27-2000, 02:40 PM
LarryBible
Guest
 
Posts: n/a
Eric,

Whatever you do, don't spray water in your tailpipe ever again.

Good luck,

------------------
Larry Bible
'84 Euro 240D, 516K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in
Mercedes automobiles
Reply With Quote
  #5  
Old 05-27-2000, 05:18 PM
Registered User
 
Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
I second Larry. I didn't catch the last part of your post. NEVER spray the hose up the tailpipe. You will ruin the exhaust system real fast that way. Also, if you get liquid into the cat, kiss it goodbye...

------------------
Jeff L
1987 300e
1989 300e
1987 BMW 325
Reply With Quote
  #6  
Old 05-27-2000, 06:25 PM
EricSilver's Avatar
Registered User
 
Join Date: Mar 2000
Location: Fairfax, VA
Posts: 1,216
Larry/Jeff,

Thanks -- I did not spray it directly or deliberately. Just in the process of rinsing the car, it is unavoidable that some water gets into the exhaust pipe. Apparently, that small(?) amount is not enough to cause any harm.

Thanks for the advice nonetheless.

Eric
Reply With Quote
Reply

Bookmarks

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
help just white smoke on 500sec engine striper Tech Help 3 05-24-2004 06:44 PM
Black smoke with sluggish acceleration 87300SDL Diesel Discussion 17 12-08-2003 12:30 PM
Lots of smoke from Car...need assistance. Damion Vintage Mercedes 8 04-10-2003 09:14 PM
Cleanign with steam... Ashman Detailing and Interior 8 03-12-2002 11:29 AM
white smoke from under the hood. emilo Tech Help 8 04-03-2001 04:56 AM



All times are GMT -4. The time now is 06:44 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, 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