Considering 03-06 600. Wondering about options differences b/w years

Also, I think I recall reading that the 2004s had some sort of mechanical failure that the 03, 05, and 06 don't. Can anyone refresh my memory as to what that is?
I plan on doing maintenance myself. I own a couple w208 CLK430s and just swapped a 2003 AMG 5.4 into one. I've read about the ABC and coil pack woes, but (perhaps foolishly) I am not deterred.
The biggest difference as noted are the 2004-06 cars have DVD based navigation that can be updated with current maps
But the 2003 is the only year with a glovebox audio input jack
Mechanically they are identical - never heard of a problem with the 2004s

The biggest difference as noted are the 2004-06 cars have DVD based navigation that can be updated with current maps
But the 2003 is the only year with a glovebox audio input jack
Mechanically they are identical - never heard of a problem with the 2004s
Follow up question: when people convert them to coil overs, do you run into problems controlling the car at speed? To elaborate, I'd plan to give it a tune and worry that the lack of a sway bar on the coil over set up would help introduce me to a concrete barrier...

Do the seats hold up pretty well? It seems like all CLKs will have the stitches rip after regular use.
Any other tips/owners advise that doesn't get discussed as frequently as the abc and coil packs?
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I would suggest, if you're willing to handle the work yourself, to keep the ABC. Yes it requires some maintenance, but if it's looked after it won't be a problematic system and when working it's like nothing you've ever dealt with. Controlling the body motions on a 4500lb car makes it feel far more agile and stable than seems possible, which just isn't possible on a non-hydraulic suspension. It would destroy the character of the car IMO.
The Best of Mercedes & AMG
The 2003 model has a more traditional wiring system, where in 2004 they switched to the MOST Bus set up. I'm not sure of any other differences, beyond what's been mentioned.

I would suggest, if you're willing to handle the work yourself, to keep the ABC. Yes it requires some maintenance, but if it's looked after it won't be a problematic system and when working it's like nothing you've ever dealt with. Controlling the body motions on a 4500lb car makes it feel far more agile and stable than seems possible, which just isn't possible on a non-hydraulic suspension. It would destroy the character of the car IMO.
The 2003 model has a more traditional wiring system, where in 2004 they switched to the MOST Bus set up. I'm not sure of any other differences, beyond what's been mentioned.
Next question: Wasn't there an aftermarket option for coil packs? I distinctly remember $800 coil packs on O'reilly's with warranty, but now they aren't listed (perhaps they wised up?).
In case any lurkers are reading this thread and also considering a CL, post #3 in this one appears to be a goldmine of info: https://mbworld.org/forums/cl-class-...ml#post6685165

I spoke with a friend of mine who owns a SL65. In regards to the AUX port on 2004-2006 CL models, he showed me this adapter:
http://shop.dension.com/en/gateway-500
I checked compatibility and it looks like it would work with the COMAND Version 1 and Version 2. Either of you have experience with one of those (or similar product)? Apparently you can find them used for $300ish.
I'd keep the ABC or look for a different car. What's the point of keeping an awesome car like this and not letting it feel and drive like it was meant to be. Unless you're stripping it down to be a racecar or something, i'd maintain the ABC and just see it as the cost of doing business in a car of this class.





