I Am looking at '97 mercedes benz E420 with 114,000 miles. Its in really great condition and I've heard up until the late 90's, mercedes were indestructible. I have heard these are realiable, but what are the downfalls. My mother has a 1994 jaguar xj6. It has been remarkably reliable. A rebuilt alternator and a door handle replacement were the only things to fail out of warranty, OUT OF WARRANTY! the rear end was fixed with the warranty, defect of the factory. I mean if jags are completely unreliable and theres only been 3 mishaps with an 11year old jag, than a '97 mercedes should be indestructible right? I love this body style and my parents like the idea of a benz more than a range rover, need I say more. My question is, What are the Biggest problem areas for this year and model?