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-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-14-2003, 10:58 PM
Registered User
 
Join Date: Nov 2000
Location: Vernon, CT
Posts: 1,848
Question Are MB exhaust sys. stainless steel?

When I bought my TD last year (actually Nov. 2001), one of the things that amazed me was that the exhaust system appeared to be original. The muffler is a MB muffler and has a date of 01/83 stamped on it. I have never heard of an exhaust sys. lasting 20 years (and counting). Is this normal for diesels or is it stainless steel. Even then, it's amazing that it has the orignal exhaust sys. The car itself was built in Feb. 1983.

__________________
1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member
Reply With Quote
  #2  
Old 01-14-2003, 11:13 PM
Piotr's Avatar
Registered User
 
Join Date: Jul 2002
Location: Middletown, DE
Posts: 739
I always thought that they were. I have an original, too!
__________________
1985 190D 2.2l Sold-to Brother-in-law
1996 Mustang 3.8l -"thinks it's a sports car"
1988 Grand Wagoneer - Sold (good home)
1995 Grand Cherokee Ltd -"What was I thinking??!!"
Reply With Quote
  #3  
Old 01-14-2003, 11:20 PM
Registered User
 
Join Date: Aug 2002
Location: NE Okla
Posts: 1,104
The exhaust system on the '68 220D was not stainless, but it lasted until 1990 when I quit driving it. Did have a hole get blown out of the front end plate of the main muffler. It was not corroded, just got hammered by the exhaust pulses. Replaced it with some 1/4" diamond tread! Think that the soot and unburned diesel that coats the insides protects the system on the inside, which is where all the corrosion works on gasser exhaust systems. Not sure about the newer ones.
__________________
1961 190Db retired
1968 220D/8 325,000
1983 300D 164,150
Reply With Quote
  #4  
Old 01-14-2003, 11:36 PM
lrg lrg is offline
Registered User
 
Join Date: Jul 2001
Location: San Francisco
Posts: 1,163
I replaced the exhaust in my 1985 W123 last year. It was original and not stainless. Mercedes must use good steel.
__________________
LRG
1987 300D Turbo 175K
2006 Toyota Prius, efficent but no soul
1985 300 TDT(130K miles of trouble free motoring)now sold
Reply With Quote
  #5  
Old 01-15-2003, 01:17 AM
jcd jcd is offline
village idiot
 
Join Date: Jun 2001
Location: Northern New Jersey
Posts: 1,102
Amazing isn't it.

Mine is a 1977 and is original.......

It'll probably crap out this week

JCD
Reply With Quote
  #6  
Old 01-15-2003, 02:27 AM
rdanz's Avatar
Registered User
 
Join Date: Sep 2002
Posts: 1,158
MB original exhaust is not stainless but with oil going through exhaust and MB using good quality heavy steal they often last 20 yrs. Mine did .
Reply With Quote
  #7  
Old 01-15-2003, 08:14 AM
Registered User
 
Join Date: Oct 2002
Location: Noblesville, IN
Posts: 178
My 1981 W123 exhaust was replaced just this year and it had a small hole in rear muffler and a hole in pipe close to where it atached to manifold.

My 1979 W116, a 450SEL, had its original exhaust when I replaced it 2 years ago.

I'd say that is great service.
Reply With Quote
  #8  
Old 01-15-2003, 08:45 AM
Registered User
 
Join Date: Aug 2001
Location: Milford, DE
Posts: 1,558
I have noticed that Diesels seem to be easier on exhaust systems than gasoline cars. Don't really know why this is the case but I have worked on several W123's with original exhaust systems 15-20 years old. On the other hand my 93 400E has a small leak and a quick inspection shows several trouble points in a system only 10 years old. Go figure.

Tim
Reply With Quote
  #9  
Old 01-15-2003, 08:49 AM
Registered User
 
Join Date: Dec 2002
Location: NY
Posts: 61
HELLO GUYS
IT IS NOT THE STEEL IT'S THE SYSTEM.
DIESEL ENGINE FUMES DO NOT CORODE THE METAL SO MUCH BECAUSE OF THE UNBURND FUEL CREATE A COTING OF OILY STUFF WHICH HARDEN IN TIME AND PROTECT THE STEEL AGAINST WATER
THE SAME THING IT;S HAPENED WHEN YOU BUY A CAST IRON POT WHICH CONTAIN A HIGH CARBON CONTENT WHICH MEANS MUCH FASTER COROSION AND BEFORE USED YOU HAVE TO SEASON FIRST , COAT WHITH OIL AND BURNED BEFORE THOUCHING THE WATER. IN EUROPE WHICH DIESEL ENGINES ARE EXTENDET USED THE EXOST SISTEM LAST MORE THAN 20 YEARS. MY FHATER SYSTEM LAST FROM 1971 TO ALMOST1995 AND HE HAD TO CHANGE BECAUSE OF AN ACCIDENT
Reply With Quote
  #10  
Old 01-15-2003, 05:14 PM
Registered User
 
Join Date: Apr 2002
Location: Missouri
Posts: 44
I have owned three Diesel Mercedes, the first a 70 220d
over 330,000 miles, 2nd one 74 240d over 350,000
miles and the 85 just over 262,000 miles and never replaced
a muffler.

Bill
Reply With Quote
  #11  
Old 01-15-2003, 05:20 PM
rickg's Avatar
User friendly
 
Join Date: Mar 2002
Location: Utah!!
Posts: 4,494
Glad to hear all of this, what with the price of a replacement system for my SD being somewhere in the area of $600!
__________________
past MB rides:
'68 220D
'68 220D(another one)
'67 230
'84 SD
Current rides:
'06 Lexus RX330
'93 Ford F-250
'96 Corvette
'99 Polaris 700 RMK sled
2011 Polaris Assault
'86 Yamaha TT350(good 'ol thumper)
Reply With Quote
  #12  
Old 01-15-2003, 07:55 PM
Senior Member
 
Join Date: Feb 2001
Location: Canton,Texas
Posts: 987
You don't get as much water (if any) sitting in a Diesel exhaust either.... plus the oil coating. I don't know if Diesel just doesn't create as much water in combustion or if the exhaust gasses are just hot enough that it doesn't condense on the way out. You don't see a Diesel steaming or dripping water before it warms up on a cold morning like you do a gasser.... maybe smoking a little. I would bet that it doesn't create as much water though.
__________________
1985 300D Turbo ~225k
2000 F350 (Powerstroke) 4X4, SWB, CC, SRW, 6spd ~148k
1999 International 4900, DT466e (250hp/660 ft/lbs), Allison MD3060 ~73k
Reply With Quote
  #13  
Old 01-15-2003, 07:59 PM
Registered User
 
Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
Diesel engines aren't throttled, so they move a whole lot more air through the exhaust. Less condensation, less acid, and less corrosive gas in there for less time.

I was under the impression that MB exhausts WERE stainless, just not non-magnetic stainless.

Peter
__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
Reply With Quote
  #14  
Old 01-16-2003, 04:55 PM
Registered User
 
Join Date: Oct 2001
Location: Western Mass.
Posts: 324
my 95 E300 is mostly stainless. I replaced the rear muffler last fall and it was rusted on all the seams. Themiddle muffler and pipes are stainless and look brand new. The front pipes and cat. yes cat are stainless and are cracked at the seams. Welding has held off the gremlins. However the list on the front pipe and cat is $1570.00 and only available from MB. Now theres a worry and a half
__________________
Ricali

03 C240 4matic wagon
95 300E 234,000
7 prior 240;s 5 still going
81 300sd gone
65 230sl gone
49 Studebaker Champion
90BMW convert.167,000
60 Dodge D-100
Reply With Quote
  #15  
Old 01-16-2003, 05:23 PM
Holson Adi's Avatar
Registered User
 
Join Date: Jul 2001
Location: Boston, MA
Posts: 2,561
The exhaust-system on my diesel is all original and I live in the rust-belt The car lived all its life here...

Also had a W124 230E back home (Indonesia - right along the equator). It was not too humid but the muffler kept rusting and created many holes that kept getting patched until one day it fell off when I started the engine...

I always wondered bout that too.
Whenever I see gas cars here they throw out a lot of water vapor and some just drip water from the exhaust pipes. The diesels don't do that They have their own smoke hehehe..

__________________
2008 BMW 335i Coupe
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




All times are GMT -4. The time now is 11:43 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page