After 6 years and 50,000 trouble free miles I traded in my 97 E320 for an 06 E350 4Matic. I traded at the Benz dealer, got a smoking deal and the complete service jacket. This baby is super clean and perfectly maintained.
I've had the new ride for 2 weeks now and so far so good. With 55,000 miles on it, it still rides solid and quiet like a brand new one.
I read the brake purging procedure and come next summer, I'll be doing that at work, at the Nissan dealer no less...

 

Well the new to me 06 350 4matic has an issue. The right bank TW Cat has an annoying ting ting ting when it's fully warmed up (I put it on the rack, at the Nissan dealer, where I'm a master technician). I researched this noise and found it's a common issue that many on this forum and others have had fixed by the dealer replacing the failed cat. So today my 350 went to the dealer for the kitty noise. A 20 something year old service writer told me the technician says it's normal. I asked if they compaired it to another car and he had the deer in the headlights stare.
So, after he told me my car IS NOT A CPO unit, I went off. I told this fellow, I've been a technician longer than you've been alive and if this car came in on trade at our dealership I'd have the cat replaced and the noise gone before it hit the lot. Also, don't you even begin to **** me.
Then I went to the dealership boss and had a few words with him about this noise and the CPO dilemma. I told him this is gonna get settled one way or another. Bait and switch doesn't go over well with the attorney general.

We'll see where this goes.