2000 E320 4-matic....have you experienced problems?

OK....my lease is up on my 2000 E320 4-matic with 51,000 miles.
I have maintained it per all owner's manual instructions, etc.
Now I've got to make a determination whether it is worth to buy the car for
the residual ($27,000) or get a new car.
Have you experienced any problems with yours after 50,000 miles?
Are there any "forecastable" product-line problems inherent in the E320 4-matic from 50,00-100,000?.....Some makes (line the old early 80's Porsche 911) had chain tensioner problems, etc...so this is the reason for my post.
Thanks much!! John
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.