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 01-13-2010, 12:09 PM
a2t a2t is offline
Registered User
 
Join Date: May 2005
Location: Atlanta, GA
Posts: 941
Should I buy a 92 300SD w. 156k miles ?

Should I buy a 92 300SD w. 156k miles no service records for $6,500 ?

Its black on grey, nice condition, runs fine but has a glow plug light flickering while driving.

Doesnít seem to burn oil but how would I know on a test drive? Any other things I should look carefully at? All electrics seem to work fine (aside from glow issue). Did ALL these have rod bending engines or just some? Would the current mileage and the lack of copious amounts of blue smoke while starting/driving indicate the engine was not a rod bender? Or do they develop bent rods after XXX miles ?

I really wanted 86-87 SDL but this W140 is all thatís around. I wonder if I could sell it for same if I decided not to keep it?

__________________
Paul
Benz-less
I need an SDL !
Reply With Quote
  #2  
Old 01-13-2010, 12:13 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
No, you should not buy it. In fact, you probably should not own it if it was given to you for free.
Reply With Quote
  #3  
Old 01-13-2010, 12:16 PM
oldsinner111's Avatar
love all animals
 
Join Date: Nov 2008
Location: bristol,tn
Posts: 5,686
Yank the motor out of the car,and install a 300sdl engine.
__________________
we need a 7 mile wide asteroid hit, to save earth from mankind, and it's parasitic ways
Reply With Quote
  #4  
Old 01-13-2010, 12:35 PM
a2t a2t is offline
Registered User
 
Join Date: May 2005
Location: Atlanta, GA
Posts: 941
Why? the motor seems fine.
__________________
Paul
Benz-less
I need an SDL !
Reply With Quote
  #5  
Old 01-13-2010, 12:54 PM
Registered User
 
Join Date: Dec 2005
Location: Carson City, NV
Posts: 3,786
For $6500, no way. Move the decimal over a point and I'd say drive it 'til something expensive breaks or the oil consumption from the bent connecting rods gets to be too much, then junk it.
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 362,xxx miles
08 Triumph Street Triple 30,xxx miles, lowered 10mm in front, Pirelli Angel GT tires, EBC HH brake pads, otherwise stock.
88 Jaguar XJS V12 92,xxx miles. I should be in the garage now.
Reply With Quote
  #6  
Old 01-13-2010, 01:39 PM
general nuisance
 
Join Date: Dec 2009
Location: des moines, ia
Posts: 394
If oil consumption is a problem I would avoid it, but if it wasn't an issue, and on some of these 3.4L sixes it isn't, I would consider it, but not at that price.

I might consider assuming responsibility for everything that needs fixing on it for maybe half, but even then it could be monumentally expensive if the evap housing hasn't been replaced.

We can't paint all 3.4L sixes with the same brush, some are apparently not afflicted with the oil consumption problem, just bear in mind if the engine does have this problem there is no resolution.

steve a
__________________
Steve A
92 W140 OM603 Bender
97 VW Jetta TDI
89 VW Fox diesel
Reply With Quote
  #7  
Old 01-13-2010, 01:47 PM
benhogan's Avatar
CPA/Greasemonkey
 
Join Date: Aug 2009
Location: Chapel Hill
Posts: 1,085
Quote:
Originally Posted by a2t View Post
Should I buy a 92 300SD w. 156k miles no service records for $6,500 ?

Its black on grey, nice condition, runs fine but has a glow plug light flickering while driving.

Doesnít seem to burn oil but how would I know on a test drive? Any other things I should look carefully at? All electrics seem to work fine (aside from glow issue). Did ALL these have rod bending engines or just some? Would the current mileage and the lack of copious amounts of blue smoke while starting/driving indicate the engine was not a rod bender? Or do they develop bent rods after XXX miles ?

I really wanted 86-87 SDL but this W140 is all thatís around. I wonder if I could sell it for same if I decided not to keep it?
Pass. I would buy it for $250 and drive it until it dies then part it out and get your $250 back.
__________________
Ben
1987 190d 2.5Turbo
Reply With Quote
  #8  
Old 01-13-2010, 02:43 PM
Eric's Avatar
Banned
 
Join Date: Jan 2007
Posts: 222
$6500 is really expensive for a car that old with a track record of major issues.
Reply With Quote
  #9  
Old 01-13-2010, 03:44 PM
a2t a2t is offline
Registered User
 
Join Date: May 2005
Location: Atlanta, GA
Posts: 941
Wow, Im sensing there’s not too much respect for the W140 diesels on here!

Ive seen these come up on autotrader/craiglist/fleabay and they usually disappear quickly so I figured they must not be too bad.

I have no way to diagnose the possibility of bend rods on a test drive, and the owner isn’t disclosing any type of massive oil consumption issue (is there anyway to tell?)

Aside from that, what other issues are a major concern? Someone mentioned evap housing – is that a typical costly failure ?

What else? Im not too bothered by the engine issue, an OM603 can be swapped in if need be down the road.

As I mentioned, the body and interior are very nice and all electricals seem to work fine. Its black, Im tempted … It would be perfect for 3 car seats across the back and my frybrid system.

I have a garage and am somewhat mechanically inclined, I was able to maintain my 87 300D and install a frybrid wvo kit for 60k miles so Im not afraid to dig into it. But I don’t want a money pit either.
__________________
Paul
Benz-less
I need an SDL !
Reply With Quote
  #10  
Old 01-13-2010, 03:48 PM
Registered User
 
Join Date: Dec 2005
Location: Carson City, NV
Posts: 3,786
Rod-bender+veggie If you want that much trouble just buy an '80s model Jaguar.
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 362,xxx miles
08 Triumph Street Triple 30,xxx miles, lowered 10mm in front, Pirelli Angel GT tires, EBC HH brake pads, otherwise stock.
88 Jaguar XJS V12 92,xxx miles. I should be in the garage now.
Reply With Quote
  #11  
Old 01-13-2010, 03:52 PM
TylerH860's Avatar
KHAAAAAAN-gress
 
Join Date: Aug 2007
Location: Wichita, Ks
Posts: 5,187
I've read a few times that German Engineers blamed the poor quality US fuel for the rod bending. Whether Veggie oil is considered a lesser fuel as well is a matter of opinion.

I believe Old South managed 400k+ out of his before the oil consumption became unbearable, but he owned the car since new and was fastidious with maintenance. My 1991 350SDL maid it to 212k before croaking with a failed head gasket. Still drove just fine, though. Perhaps I could have got away with just the head gasket, but sold the car before making the repair.

Evaporator and a myriad of electrical issues is all I've heard of.
__________________
1985 500SL Euro w/ AMG bits 130k
1984 300SD Turbodiesel 192k
1980 240D Stick China 188k
2001 CLK55 AMG 101k
2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!!
Reply With Quote
  #12  
Old 01-13-2010, 05:39 PM
general nuisance
 
Join Date: Dec 2009
Location: des moines, ia
Posts: 394
Quote:
Originally Posted by a2t View Post
Wow, Im sensing thereís not too much respect for the W140 diesels on here!
I just bought one a month ago...but it was considerably less expensive than the one you're looking at. I really like the car and although there's a lot of bashing sometimes you just put up with it. I'm notorious for buying things / cars other people hate....like Peugeot, I've owned 504's 505's and even a 604, all diesel powered.

Quote:
Originally Posted by a2t View Post
Ive seen these come up on autotrader/craiglist/fleabay and they usually disappear quickly so I figured they must not be too bad.
I watch these places too and they do disappear, but no one can ever be sure why...sold? pulled ad? Who knows, but I agree, they do disappear quickly for some reason.

Quote:
Originally Posted by a2t View Post
I have no way to diagnose the possibility of bend rods on a test drive, and the owner isnít disclosing any type of massive oil consumption issue (is there anyway to tell?)
nope, neither did I, but I looked at the blow-by (or lack of in this case) and the smoke output from the engine and decided that it wasn't a problem yet.

Quote:
Originally Posted by a2t View Post
Aside from that, what other issues are a major concern? Someone mentioned evap housing Ė is that a typical costly failure ?
Besides the self-destructing evap housing (around $5k to have someone replace) the wiring harnesses were manufactured a little too biodegradable for their own good so some of the underhood harnesses disintegrate and create a cascade failure in the electrical system. I've inspected some of mine and found the wiring to be fine so who knows, but others on benzworld complain of wiring decay. Also there are some problems with the soft-close pumps, the lock pumps, the Bose amplifier fries easily and at a minimum costs about $225 (or more) to repair. Front suspension wear causing vibration at speed is an issue for some.

Quote:
Originally Posted by a2t View Post
What else? Im not too bothered by the engine issue, an OM603 can be swapped in if need be down the road.
The better install is the OM606.xx engine.

Quote:
Originally Posted by a2t View Post
As I mentioned, the body and interior are very nice and all electricals seem to work fine. Its black, Im tempted Ö It would be perfect for 3 car seats across the back and my frybrid system.

I have a garage and am somewhat mechanically inclined, I was able to maintain my 87 300D and install a frybrid wvo kit for 60k miles so Im not afraid to dig into it. But I donít want a money pit either.
I would definitely not buy it if you intend to use a frybrid system. The admission from Benz regarding these failed engines centers around the low US cetane level...unofficially. If you go to a WVO system, which I DO NOT advocate, you'll be running a cetane level even lower, which could accelerate engine failure. There are better candidates for WVO systems than the W140.

Good luck

Steve A
__________________
Steve A
92 W140 OM603 Bender
97 VW Jetta TDI
89 VW Fox diesel

Last edited by glenlloyd; 01-13-2010 at 06:17 PM.
Reply With Quote
  #13  
Old 01-13-2010, 07:06 PM
a2t a2t is offline
Registered User
 
Join Date: May 2005
Location: Atlanta, GA
Posts: 941
Interesting points.

Quote:
The better install is the OM606.xx engine.
The 606 is bad for veg - glow plug issue, and overly complex fuel delivery system, I have avoided the E300 for that reason.

Quote:
would definitely not buy it if you intend to use a frybrid system. The admission from Benz regarding these failed engines centers around the low US cetane level...unofficially. If you go to a WVO system, which I DO NOT advocate, you'll be running a cetane level even lower, which could accelerate engine failure. There are better candidates for WVO systems than the W140.
Agreed there are better candidates. I wish I could find a decent SDL. But I would think the use of veg oil would be better than low sulfur D2. It burns more slowly, less jerk (rate of acceleration) on the con rods, should result in less G force. Im assuming jerk is what causes bending of the rods.

$5k for evap housing? Degrading wiring...these 2 issues are more of a concern than anything else so far. I will look close.

Thanks for all input guys.
__________________
Paul
Benz-less
I need an SDL !
Reply With Quote
  #14  
Old 01-13-2010, 07:39 PM
Registered User
 
Join Date: Jan 2010
Posts: 1
Quote:
Originally Posted by a2t View Post
Should I buy a 92 300SD w. 156k miles no service records for $6,500 ?

Its black on grey, nice condition, runs fine but has a glow plug light flickering while driving.

Doesnít seem to burn oil but how would I know on a test drive? Any other things I should look carefully at? All electrics seem to work fine (aside from glow issue). Did ALL these have rod bending engines or just some? Would the current mileage and the lack of copious amounts of blue smoke while starting/driving indicate the engine was not a rod bender? Or do they develop bent rods after XXX miles ?

I really wanted 86-87 SDL but this W140 is all thatís around. I wonder if I could sell it for same if I decided not to keep it?
I am selling a 1992 300D with only 146,000 miles on it for around $2500. Everything works very well on it including all the electronics (seats, windows lights, everything). It runs very well and has the service records with it. Interior is very nice considering the age. The only thing wrong is that the battery seems to not be recharging while the car is running. It is a really nice car and I'm trying to sell it for my fiancee's uncle. PM me if you're interested.


Last edited by gg1519; 01-13-2010 at 08:09 PM.
Reply With Quote
  #15  
Old 01-13-2010, 08:19 PM
a2t a2t is offline
Registered User
 
Join Date: May 2005
Location: Atlanta, GA
Posts: 941
just sold my 124, need something bigger. those are nice cars though.

__________________
Paul
Benz-less
I need an SDL !
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 02:20 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page