w140 300sd - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 02-15-2013, 03:32 PM Thread Starter
BenzWorld Newbie
Date registered: Feb 2013
Vehicle: w140 300sd 1993
Location: phoenix,az
Posts: 2
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
w140 300sd

My name is John & I live in PHX, AZ. My '93 300SD has the 3.5 Diesel but the head/gasket has failed. Before spending the $2500 (assuming a new head will be required) I am trying to find out if a used 300 5cyl motor would fit in this chassis. The car is very low mileage w/every possible fact. option. My friend sez to just crush it and cut my losses. I look forward to reading forum posts, perhaps the answer lies within! Thanks for having me. John
john kenney is offline  
Sponsored Links
post #2 of 3 (permalink) Old 02-16-2013, 12:59 AM
Outstanding Contributor
eric242340's Avatar
Date registered: May 2007
Vehicle: Zotye Auto 1.5T T600 2016
Location: The wild west of the Far East
Posts: 52,586
Mentioned: 3 Post(s)
Quoted: 311 Post(s)
Welcome to Benzworld, plenty of original parts around the scrapyards.


People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf - George Orwell
eric242340 is offline  
post #3 of 3 (permalink) Old 02-16-2013, 07:36 PM
BenzWorld Member
Date registered: Mar 2012
Vehicle: 2 W123 300D's and 3 W124 wagons
Location: Seattle area, but out a ways
Posts: 346
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
The short answer is yes. Any OM603 engine will fit. I bought an OM603.96something engine today for $600.

An OM606.96n from 1997-99 can be made to fit, if you are relatively skilled (or buy beer for guys who are). I recently bought one of these too. But they're much more expensive than OM603's (unless your name is TheDon and you are one lucky skunk in the junkyards of Florida). Mine cost $3400 (TheDon's cost him only, if memory serves, $300). Has only 48,000 miles on it. These are rapidly becoming hard to come by, because with not much effort 300 hp or more can be coaxed from one, and more and more people are discovering this and thus are hunting for OM606.962's. Shh, don't tell anyone.

300 hp is also possible to obtain from an OM603, even a 3-liter one, but people haven't caught onto this yet. In either case, it requires rebuilding your injector pump with larger elements (which costs around $1500, give-or-take), then either swapping-in a larger turbocharger ($400-750) or else adding a supercharger ($400-7,000) or both. Plus an intercooler of course ($100-$500).

Speed may not necessarily kill, but it does get expensive fast.
JustPassinThru is offline  
Sponsored Links

  Mercedes-Benz Forum > General Mercedes-Benz Forums > General Mercedes-Benz

Quick Reply

Register Now

In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may 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


Title goes here

video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome