722.416 trans vs. 722.303 - Page 2 - PeachParts Mercedes-Benz Forum

Stretch · #16 01-23-2014, 04:35 AM

Quote:

Originally Posted by Dr. Sternschnuppe

The 123.193's with 722.303 have electronic speedo (gearbox p/n 126 270 XXXX).
But I believe, that 123's with 722.416 have mechanical speedo, because gearbox p/n is 123 270 XXXX, while for 126's with 722.416 and with electronic speedo gearbox p/n is 126 270 XXXX.
Isn't it?

Salutte!

When I learnt that the 722.118 was provided in a form of "vacuum only" and "no vacuum but with a solid rod connection to the throttle" I lost all hope in trying to understand Mercedes transmission numbering policy.

As far as I can make out almost anything goes - almost anything can happen. It isn't like they are shy with making up new numbers for things. In the case of the above they could at least have given us a 722.118A and a 722.118B (same thing happened with the 722.117 too). It really doesn't help us fixer upers...

Dr. Sternschnuppe · #17 01-23-2014, 05:51 AM

Quote:

Originally Posted by Stretch

When I learnt that the 722.118 was provided in a form of "vacuum only" and "no vacuum but with a solid rod connection to the throttle" I lost all hope in trying to understand Mercedes transmission numbering policy.

But it happened because new types of the injection pump was introduced on the diesel engines...
And all models of the 722.1 generation have fundamental (identical) inner structure.

Stretch · #18 01-23-2014, 09:26 AM

Quote:

Originally Posted by Dr. Sternschnuppe

But it happened because new types of the injection pump was introduced on the diesel engines...
And all models of the 722.1 generation have fundamental (identical) inner structure.

I'm sure they had a good reason for it but when they put in a different valve body to accompany the change they left the id number the same. I find it confusing because now I need to know about the secret squirrel serial number information that says all 722.118 transmissions past serial number blah blah blah were vacuum only...

...if they had called the revised 722.118 a 722.199 for example then geezers like my good self would immediately be aware of a difference.

Besides an early 722.118 has a more similar internal structure to a 722.112 but less so than the later 722.118 - the differences are small - like a different valve body. But that was the change made to the 722.118 so I don't see why the new version didn't get a new number...

...just saying...

...just ranting...

...not at all frustrated...

...not at all over excited by it all!!!!!