Yes, I got one ordered and coming on Monday. I hate the Amazon dominance but theyre the only outfit that could deliver in two days. Other sellers were up to five days..And a great discussion of air pump replacement with the relay is on Benzworld with all the details. (no links allowed here I understand) This discussion shares the fuse and relay locations..And you tube has the replacement details on a nice video.

The info there says its often a cracked intake line allowing dirt into the compressor which messes up the seals and then it burns out. My air shocks went down very slowly so hopefully theyre still serviceable. Hopefully the airmatic system isnt fouled with junk from a compressor failure.

I got the red warning light and then the level continued going down for about two days, till they hit the pads. Full bottom. Took about a week total compression- I suspect..hard to be sure. Id like the rear to have the same tire clearance as the front but its always been a bit less with the fender arch just below the tire tread.

I looked at other models of the foxwell scanner which have other features but this 520 looks like the one for the job. And the air pump/compressors are available under $300. Not too difficult a repair..

Yes, the seller required a Merz specification prior to order completion so were good! I will probably be adding Toyota and Subaru to the unit software soon..

So you have the same Merz E320 wagon then, with airmatic and 2004. I was given an old 94 E320 and loved the car, found it easy to repair and then bought a 95 wagon for $600 bucks which was a great trip car. Totally rebuilt the cylinder head and had it nicely restored with AC and all systems good! Then smashed up in the snow..Still driveable but lost all the AC systems to front end damage.

Anyway Im looking forward to totally tuning up this 2004 and adjusting the ride height and the engine settings for mid grade fuel and checking the issues with the various bugs that come up..I owe you a short case of your favorite brew!

Thanks again! For your contributions here. These chats are more heavily focused on older cars but the depth and accuracy of information is amazing!