Bought a new daily driver for the winter, got it very cheap.
Always wanted a w140 mercedes, specially a diesel one and now i got one
It was pretty well equipt from the factory, usually dieseli w140 are without options, but this one had black leather, electric seats, automatic clima. etc. Also it had pretty low milage on the meter, usually these euro S diesels have over 500tkm in the meter.
Idea is to make some small preps here and there, to keep it non superturbo if possible

Here's few photos in original shape:

Made some modifications to exterior and also to engine.
Made my own software for turbo and IP control, also made new engine harness (old was pretty bad ), K&N intake kit, disabled EGR and custom injectors modded by me. Exterior mods, Eibach Pro-kit, Sachs Super touring, Altech wheels modded by me, facelift smoke crystal rear lights, facelift grill and headlights with xenon lights.

Here's new pictures:

You too can be in the Russian Mob .. I like it.

I've always liked the W140 S class they are so over built the doors and glass are just massive! nice car!!!

*drools*

1983 300D Silver Exterior/Black inside - Euro headlights, Ronal R9 15X7 wheels with 205/60r15 Michelin Pilot Exalto A/S tires
2007 Chevy 2500HD CCSB Duramax with about 400-500 rwhp depending on the tune I use

(10-18-2010 05:03 AM)JTY Wrote:  Bought a new daily driver for the winter, got it very cheap.
Always wanted a w140 mercedes, specially a diesel one and now i got one

Could you please tell us more about the diesel they used in the W140?
Displacement, power etc.... Also what else was it used in??

In the USA its the unreliable 3.5L OM603, 147hp.
Outside the USA it was the turbo OM606, 178hp.

(10-23-2010 07:08 AM)ForcedInduction Wrote:  In the USA its the unreliable 3.5L OM603, 147hp.
Outside the USA it was the turbo OM606, 178hp.

3.5L was also sold in Europe

beautyful car,wouldn't mind driving it,what year is it?

(10-23-2010 01:59 AM)Silberpfeil Wrote:  Could you please tell us more about the diesel they used in the W140?
Displacement, power etc.... Also what else was it used in??

This the pre-facelift model S350td with 3.5l OM603 with garrett T3 turbo, no intercooler, first model with ECU controling engine and turbo.
The 3.5l engine is pretty torque beast and moves the massive chassis pretty easy, no complains.
Many have complained that 3.5l om603 is unreliable, but that's only half truth. Here in europe these S350td have been driven hard and long, usually with the same engine (400-600tkm).

Resently i found good thread on this matter were they explaint why there was so many failured 3.5l engines in US and that was because of the low quality diesel. US has lower cetane values for diesel their selling than in Europe and that causes harder knocking and wilder cyliner pressures. It's true that MB made lighter rods for 3.5l engine, but the main problems seems to be in the fuel.

Not the fuel. Only MB knows the actual cause and they won't even acknowledge there was a problem.

(10-27-2010 05:53 AM)ForcedInduction Wrote:  Not the fuel. Only MB knows the actual cause and they won't even acknowledge there was a problem.

Ya I have seen alot of theories but no facts.

(10-26-2010 02:28 PM)JTY Wrote:  Many have complained that 3.5l om603 is unreliable, but that's only half truth. Here in europe these S350td have been driven hard and long, usually with the same engine (400-600tkm).

Resently i found good thread on this matter were they explaint why there was so many failured 3.5l engines in US and that was because of the low quality diesel. US has lower cetane values for diesel their selling than in Europe and that causes harder knocking and wilder cyliner pressures. It's true that MB made lighter rods for 3.5l engine, but the main problems seems to be in the fuel.

What cetane can you find where you are?
I go out of my way to always put 42 cetane in my car instead of the 40 cetane everyone else has here in the states and I definitely notice the difference.

(10-24-2010 01:53 AM)mb-rene Wrote:  beautyful car,wouldn't mind driving it,what year is it?

It's from 1993

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(10-27-2010 10:03 PM)Silberpfeil Wrote:  What cetane can you find where you are?
I go out of my way to always put 42 cetane in my car instead of the 40 cetane everyone else has here in the states and I definitely notice the difference.

Cetane value for our diesel is 50-55 (Neste Diesel 51), that's typical normal diesel here in Finland.
But my self i usually use diesel 100 addative with diesel (to top cetane even higher) + some 2stroke oil to keep pump and injectors working
Have been using this coctail for over 10years, last diesel MB i drow over 800tkm with original enigne, 300sd was over 500tkm before i made engine overhaul, so no problems here

S350td has been driven over 350tkm with original engine, so let's see how long it will last

Wow I like it.

Here's few photos of the water injection system.
I tried to keep it as OEM as possible.

So here's more OEM tuning

Looks nice I like the tank it makes for a nice clean install!

I seconed that! That tank is way sweet, very clean.

What tank is that? That thing is dope!

What water injection system is that. And what nozzles are you running on the 603.

(10-31-2010 09:51 PM)Captain America Wrote:  What tank is that? That thing is dope!

Tank and pump is made by coolingmist, pump is newer generation 200psi model without the annoying pressure switch, so no pressure humping anymore

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(11-01-2010 11:26 AM)George3soccer Wrote:  What water injection system is that. And what nozzles are you running on the 603.

I'm running with a 180cc/150psi (208cc/200psi) nozzle. It's rated for 200-300hp.
Today was the first long trip with waterinjection and it seems to be spot on nozzle for this engine. Fuel consumption went down by 2liters, not truthfull because half of the tank wa sdriven without waterinjection, so it should get even better. Drives very smooth, more torque, torque band wider.

Thank you very much. Will give those nozzles a try.

What sollution are you running aswell.

(11-02-2010 10:36 AM)JTY Wrote:  

(10-31-2010 09:51 PM)Captain America Wrote:  What tank is that? That thing is dope!

Tank and pump is made by coolingmist, pump is newer generation 200psi model without the annoying pressure switch, so no pressure humping anymore

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(11-01-2010 11:26 AM)George3soccer Wrote:  What water injection system is that. And what nozzles are you running on the 603.

I'm running with a 180cc/150psi (208cc/200psi) nozzle. It's rated for 200-300hp.
Today was the first long trip with waterinjection and it seems to be spot on nozzle for this engine. Fuel consumption went down by 2liters, not truthfull because half of the tank wa sdriven without waterinjection, so it should get even better. Drives very smooth, more torque, torque band wider.

On water only or Mix?

(11-02-2010 12:33 PM)George3soccer Wrote:  Thank you very much. Will give those nozzles a try.

What sollution are you running aswell.

Usually with water/ethanol 60:40, have tried also 50:50, but those were on the 300SD superturbo. That trip was with 70:30 water/Ethanol mix.
Next will try with 60:40 water/methanol (as my ethanol stock is out :cool

Let me know how does the water/methanol work out. I have that available very easily.

(11-03-2010 11:53 AM)George3soccer Wrote:  Let me know how does the water/methanol work out. I have that available very easily.

Water/methanol mix (60:40) seems to work better, gave that much more torque that the tranny started slipping
So next step taking tranny out and to Siekkinen for 600Nm prepup and after that bigger turbo and IP to PP-diesel or Mynä for 7mm element modify

Okay better rods before that

Haha I love it. Very glad the water meth was a better mix, I will be running the same mix as well, but wont be able to give results until spring time. Car is in winter project mode currently.

Please do keep us updated with this motor, and the updates sure do love the work, and clean craftsman ship.

Some update on this project. I have been driving around 3000km with the setup and fine tuned the water injection.
With current tune the 1.5gallon tanks lasts for 300km, not so good for MPG but nice power increase when driving WOT
There is big difference in the power if driving with higher meth mix 60:40 and 50:50, 70:30 is too light mix.
Maybe gonna install a 6gallon tank to rear and reverse to original tune, so that it injects little earlier to get better MPG.

Mpg. Do you mean mpg of the actual fuel consumption. Of mpg of water/meth consumption?

(11-24-2010 08:24 PM)George3soccer Wrote:  Mpg. Do you mean mpg of the actual fuel consumption. Of mpg of water/meth consumption?

Sorry for mistake, i mean fuel mpg

Bump.

(12-01-2010 07:31 PM)JTY Wrote:  

(11-24-2010 08:24 PM)George3soccer Wrote:  Mpg. Do you mean mpg of the actual fuel consumption. Of mpg of water/meth consumption?

Sorry for mistake, i mean fuel mpg

Mita Gulu,

I too own a 1993 300SD, and looking for ways to improve its performance as well as MPG. Are you able to share with us the details of your mods or even the DIY?



Greetings from US, I was in Oulainen for New Years back in 2000. My ex was from there (Kaski)