What is the interpretation of "Not exchangeable retrospectively" to forum members when the see it on realoem.com?
"Not exchangeable retrospectively" meaning
- Thread starter bluecs
- Start date
That you cannot return rearview or side mirrors?
When there is a new or updated part number (part) that can't be used on an older version.
Re Dang: So, do you mean the new superseding part can not be used in place of the superceded part?
It's usually regarding electronic parts that are produced within date ranges. Some work with older dates or versions and some don't
Re Dang: so, if you mean some new superseding parts work in place of the original superseded parts and some don't, then why would the new superseding parts that don't work in place of the older superseded part be listed to begin with when you do a search for the older car part?
They list it so you don’t get confused with a part that is bilaterally exchangeable.
Huge difference of course.
Huge difference of course.
An example is the 179 motronic ecu.
reputedly an upgrade for the 150 ecu as it is adaptive Motronic 1.3
the 179 replaces the 150 but the 150 cannot replace the 179.
reputedly an upgrade for the 150 ecu as it is adaptive Motronic 1.3
the 179 replaces the 150 but the 150 cannot replace the 179.
OK. Thanks. That was my thinking, but I was not sure, because of the contextual use of the term "retrospectively."
SF, the example you gave is what clears it up.
dang, is SF's explanation your interpretation as well?
SF, the example you gave is what clears it up.
dang, is SF's explanation your interpretation as well?
Don's middle name is "E9 God" so yes, I agree.
My error. I didn't phrase my question clearly. What I should have asked you (dang), was whether when you initially replied to me you had the same interpretation as SF 's explanation.