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W124 320 Cdi ??

franey

Active Member
Joined
Nov 25, 2007
Messages
755
Location
Doncaster
Car
W201 190 2.5d, W124 300d 24v, W221 S350 AMG
Just a thought.
So the 124 has a great following being a robustly built car.
I have often thought of the possibility of fitting a later 320 cdi engine and transmission into one.
Problems that would surely arise would be the electronics such as control units then the harness.
Has it been done before does anyone know?

I am sure it would be a splendid vehicle!
 
Just a thought.
So the 124 has a great following being a robustly built car.
I have often thought of the possibility of fitting a later 320 cdi engine and transmission into one.
Problems that would surely arise would be the electronics such as control units then the harness.
Has it been done before does anyone know?

I am sure it would be a splendid vehicle!

Why bother?

Cdi's are prone to endless problems, late 124 engines are almost indestructable.

A W210 E300 TD engine might be a better idea, less nightmare electrics, and a good solid powerful engine...
 
So a W210 td would fit into a 124 easily? Would the turbo clear the steering box?
 
I reckon turbo-charging the old W124 4 Valve diesel engine would liven it up considerably. There was a Swedish company STT= Svensk Turbo Teknik AB that provided kits for the older OM 603.912 2 valve diesel engines but no longer in business unfortunately Their top spec intercooled motor yielded 163bhp@4600 with 300Nm @2,400
If you were to transplant a more modern engine I would plump for the excellent 5cylinder OM6O2 or OM612 engines which in their later incarnations offered a good balance of pulling power and economy. They were also fitted to commercial vehicles with less integrated electronics so possibly an easier transplant??:dk:
 
I reckon turbo-charging the old W124 4 Valve diesel engine would liven it up considerably. There was a Swedish company STT= Svensk Turbo Teknik AB that provided kits for the older OM 603.912 2 valve diesel engines but no longer in business unfortunately Their top spec intercooled motor yielded 163bhp@4600 with 300Nm @2,400
If you were to transplant a more modern engine I would plump for the excellent 5cylinder OM6O2 or OM612 engines which in their later incarnations offered a good balance of pulling power and economy. They were also fitted to commercial vehicles with less integrated electronics so possibly an easier transplant??:dk:

312D sprinter engine, AKA 210 E290TD (only in europe) would be a good option, tricky engines to get hold of though, 300TDs are plentiful as they never go wrong, both are good for intergalactic milages though.
 
Have a look at this forum: http://www.superturbodiesel.com

They have a wealth of information on turbo-charging the standard OM603 12v engine, and everything MB diesel. The preferred route favours Garrett and Holset turbos, but also give info on injection pump mods and everything in-between. I've been thinking about doing something to raise the 117 odd HP of the standard 300D engine for a while.

I know for a fact that the later w210 turbo diesel OM606 can use the w124 OM603 (mechanical) injection pump, so that route would add some useful power without too much modding.

As nick mercedes says, the 300TD's / D's are capable of huge mileages. An Irish member on here had a 300D with 700 000 miles on it, but it succumbed to rust. Check this video from youtube, it's some crazy Finns who've transplanted a 300TD into a W201 190D. The pertinent numbers are: 426Hp 765Nm :eek:


[YOUTUBE]<object width="640" height="505"><param name="movie" value="http://www.youtube.com/v/-gVUwDJ1QyY&hl=en_GB&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/-gVUwDJ1QyY&hl=en_GB&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="505"></embed></object>[/YOUTUBE]
 
Not sure this Finnish conversion would pass the emissions tests come MOT time.:crazy::D
 
To be honest, MB could make my 1991 E300D today, without changing anything at all, in you wanted to be really **** they could fit a diesel cat in the exhaust.

It would still be a better car than anything ford etc make, and frankly it would be a better car than the current E class.

It would however cost a lot more to make than the current E class... but then it would still look, feel and drive like a new car in 2030 AD.

It seems that Ssangyong were smarter than MB.

why the **** is A N A L filtered out?
 
I agree, yes my E300 diesel ain't ever gonna do a burn out at the lights, but it's quiet, relaxed, can pick it's skirts up and get on with it swiftly when needed, and that tick over burble and clack just get's me every time:thumb:. The knowledge that the car should comfortably see me out is also very reassuring. Also the car gets the admiring glances when parked down the marina, not the latest E class.;)
 
Just a thought.
So the 124 has a great following being a robustly built car.
I have often thought of the possibility of fitting a later 320 cdi engine and transmission into one.
Problems that would surely arise would be the electronics such as control units then the harness.
Has it been done before does anyone know?

I am sure it would be a splendid vehicle!

I think it would be a great vehicle. Personally I wouldn't bother putting a turbo 606 in - the 320 CDi engine is much more modern and has lots more torque

Electronics is the problem. An aftermarket ECU is, in theory, the simplest solution. If you are seriously interested then speak to Ginny Simkins at Simtek Ltd: [email protected]

Simtek is introducing an aftermarket diesel ECU system and could develop a system for the 320 CDi engine. I have discussed it with them but suspect the cost for a one-off development would be high. Amortised over a few hundred installations the cost would drop dramatically

The gearbox in a 320 CDi has an ECU so you will need to tackle that as well

Nick Froome
www.w124.co.uk
 
why not a brand new 603.912 engine, courtesy of ssangyong?
 
IMHO a 603 or 606 won't move the W124 game on enough. If you are going to re-engineer an icon you have think big


engine type power gain torque gain
OM606 I6 134 bhp 155 lb/ft
OM613 I6 194 bhp 44% 347 lb/ft 223%
OM??? V6 224 bhp 70% 380 lb/ft 245%

Nick Froome
the independent Mercedes Estate specialists
 
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it will do the national speed limit + 60 mpg, it will keep up with anything else one the road that isn't stolen, what needs "moving on"?
 
it will do the national speed limit + 60 mpg, it will keep up with anything else one the road that isn't stolen, what needs "moving on"?

I think the only justification to modify a W124 would be to improve it radically. It'd be an expensive and time-consuming job

I can't see any reason to take a small step when there are more modern, cheaper alternatives available. For that reason I think only a big step is worth taking - to move the game on considerably

It's not just about numbers. If it were you'd buy a VAG diesel

Nick Froome
the independent Mercedes Estate specialists
 
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Why bother the W211 320 CDI is miles better......and I have owned nine W124's so I an in no way biased against 124's.....but IMHO you are looking through rose tinted specs....
 
Its really amazing to see what people can do with old diesel eninges.

Is there easy way to upgrade 300D to 300TD?
 

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