30E oil consumption

[robi99]

This is a common topic in the forum but I have a new question. Has anyone ever tried to get MB to at least share the cost of valve jobs, valve guides etc. as extended warranty or "customer goodwill"??
My Dad recently purchased a 1990 300E with less than 80K miles. An independent repair shop says it needs valve guides. "Yes" the car is out of warranty and "yes", 80K miles is a lot of miles but when a manufacturer has a problem that is chronic or obviously caused by inferior parts or materials,and affects so many cars, it is not unusual for that manufacturer to extend the warranty or share the cost.
I look forward to comments before I approach my local friendly MB dealer.
Thanks in advance