MERCEDES BENZ 3.5 LITER TURBODIESEL INTEREST GROUP NEWSLETTER
Do you know this documento no MB 350TD engines?
http://www.w124performance.com/docs/mb/OM60X/OM603.97x_3.5L_white_paper.pdf
BR
Antonio
INTRODUCTION
This newsletter is being sent to all those interested in the problems with the 3.5 liter turbodiesel
engine used in S-Class Mercedes between 1990 and 1995. It incorporates significant new research and
information and the input of several list members since my last communication some time ago.
Briefly, this engine has problems. With distressing frequency these engines show significant,
grossly premature wear, requiring expensive rebuilding. Symptoms are excessive oil consumption,
mechanical noise, smoke, and a throbbing idle. Diagnostic procedures usually reveal that one or more
cylinders have compression that is below specification, with excessive variation in the compression
among all cylinders. Mechanical teardown frequently reveals cylinders that are out of round and
connecting rods that are bent. Catastrophic engine failure has occurred quite often. These problems are
clearly due to a design defect that Mercedes refuses to acknowledge. These problems can not be
prevented with any sort of routine maintenance, nor can they be forestalled with changes in driving
behavior. In essence, the engine self-destructs during normal operation. Symptoms have appeared as
early as 50,000 miles. Due to the expense of individual repairs, Mercedes honors warranty repairs only
after considerable pressure is applied. Out-of-warranty claims are summarily rejected
http://www.gwoa.co.uk/content/om-603-de-35-la-engine-avoid
if you have the patience to go through the search facility you will find more references to this engine
http://www.gwoa.co.uk/content/buyers-guide-translated-german-i-think-quite-well
Hello Antonio,
Thank you for this information. The club is aware of issues with the 350TD in general as we did cover this topic back in June 2013. Below are links to this topic and lastly the forums views and response Mercedes Benz U.K. gave.
http://www.w124performance.com/docs/mb/OM60X/OM603.97x_3.5L_white_paper.pdf
JOIN THE GWOA
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- Jaffa_JIM_23
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Hi everyone,
it is important to underline in my view, that mine was cooked in a strange way, 258k.
It initially started as usually with head gasket, although I had never high temp, at most around 90ºc.
It started to build pressure on cooling system, tubes start to pull out, radiator clinched areas start to leak... gasket change, grinded head, pressure test, ok.
In one of the rides a bit uppset I drove flat out for some minutes, no temp problems, but cooling fluid out, about 2-3liters but as I've now a big capacity radiator, about 15l, no big deal.
As usual cooling level was decreasing and then in the morning starts with a smoke start and unstable.
Next day after some km's, it does not start, it's hydralic blocked, as I'm abl to start, cooling fluid everywhere.
Open the sump and there is cooling fluid in the oil.
I still did not open it.... to see what really happened, will do on a near future.
BR
Antonio