The 603.XXX or the 3.5 liter 603 had weak connecting rods, I would love one but wouldn't buy one unless I could afford $7k to get a new short block when it blows. Now the 3.5 was used in two different cars 90-91 in the W126 the 350SD/L and in 92-95 in the 300SD's. But the later ones are W140's a W140 and a rod bender is made for someone with deep pockets.


$14k is a little high but not as high as you might think. These cars hold a lot of value. Probably around $10k give or take is about right.

Frankly considering you can get sub 100k, mint 1991 560SEL's for less than $10k, your better off with a newer gas W126.

__________________
2006 CL500
2009 C300 4matic
1969 280SE
2023 Ram 1500
2007 Tiara 3200