OM606 95 E300D question
 

I was wandering if someone who has one of these cars could tell me if they have the warm up period similar to the gassers where the car stays in low gear for a couple of minutes?

No I dont think that our car shifts at higher rpms when cold. It only feels "cold" in the morning, engine clatters etcc...

I believe the later MB's with the 5spd auto have the higher rpm shifts when cold. Im pretty sure that this is only to warmp up the cat faster in order to burn off the byproducts of combustion or the pollutants.

thanks, I wasn't sure if the earlier 606 cars had cats or not. Miss that diesel clatter though- hopefully will be hearing it again soon :)

Is your OM606 back in the UK?

Yes, the W124 OM 606s had cats, I was told that they have rigorous emission control system since this diesel car meets the California emission standards.

I have the same car, and according to "ALL DATA" this car DOES have the warm-up feature..

Below is the exctract explaining the feature and operation. The extract is specific to the '95 E300D [OM606 Engine]

Phil

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Description and Operation

The transmission upshift delay relay delays the 2 - 3 upshift point in order to heat the catalytic converter faster during cold engine operation.

Under certain operating conditions the CIS-E control unit energizes the upshift delay relay via ground. This causes the upshift delay solenoid valve at the transmission to open reducing the governor pressure and raising the upshift point.


The 2 - 3 upshift delay point will be raised if:

a) After start up, with the coolant temperature between 60°F and 86°F for a maximum of 80 sec. or up to 31 mph.

b) With the coolant temperature between 32°F and 60°F for a short time, depending on the coolant temperature at the time or up to 31 mph.

Below 32°F and above 86°F 2 - 3 upshift delay does not operate.

yea, it would be a UK-spec car. I have found a private seller who only deals in late-model 124 wagons so I'm considering getting one.

Good thing pberky posted as I would mislead a fellow member :)

Since I occasionally drive 97 S320, I can notice the delay in shifting when car is cold. The E300D seems much smoother.

Are you plannin on bringing it over to NA?

nah, I'm moving back to the UK in December. I'd like to get another 124 but I want a diesel this time as I wouldn't be able to afford to run a gasser there.

What kind of mpg do you get with your E300D by the way?

Pberku – something is not right.

You stated that the ‘cut & paste’ information that you posted is specific to the OM606 engine in the 124 chassis, but there is an incongruity. Within the information is a statement relating to the CIS-E computer/controller. CIS-E is the fuel injection system for gasoline fueled engines, not diesels.

It is a common methodology to delay upshifts when the engine is cold on gassers to heat up the catalyst more quickly, but this is not implemented in the 124 606 iteration to the best of my knowledge.

In response to Runningtoohot, the information that I quoted from "All Data" is specific to the '95 E300D. Some of the information in "All Data" however has been proved to be wrong in the past, so I can't vouch as to whether or not, this specific information is valid.

Perhaps someone with first hand knowledge or the '95 E300 Service CD can clarify.

Phil