Chains / rails have not yet been done to the best of my knowledge...
Just replaced the air pump.
Rear subframe mounts look good.
Tranny doesn't leak. [Upshift delay keeps setting CE though]

So what's going to need to be done?
When?
How much?

Thanks!

I just got my 1995 E420 back this morning - Evaporator was finally replaced for less than the estimate (how often does that happen?). This is an item that you may need done, if it hasn't been done yet. A known failure item on the W124.

Troy
1995 E420 75k

My 400E has similar mileage to that, these are the major repairs/maintenance I have done to it in the past 2 years:
Rebuid P/S pump
Rebuild air pump.
Replace air pump clutch
Replace cam seals
Replace wiring harness
Replace belt tensioner
Repair electric fan
Change Rediator fitting
Repair leaking windshield washer tank
Fix leaking in fuel pump/filters
Fix Radio reciever
Replace all engine breather hoses
Fix sunroof
Change Transmission shift lever bushings
Replace rear shcoks
Replace front/rear sway bar bushings
Plugs
Distributor rotors and caps
Fuel pressure regulator
Fuel filter
and lots of small things..

Things to do:
Timing chain, rail and tensioner
Left side rear tire has exessive camber
Heater blower makes loud noise
Front structs
Motor mounts
Throttle get stuck twice in two year for unknown reason
Sunroof won't tilt

For obvious reason I am selling the car, my 400E is a very very odd car.

__________________
99 BMW 540i 6-speed 110K Km
03 SAAB 9-5 wagon 80K Km
92 400E (Sold) 245K km
Still missing the days with the Benz, it kept me busy.

thesheep, the timing chain and rails are the only thing that I would replace now. I would just fix other things as they break.

My car has 156k miles and so far I've done this:

Replace air pump.
Replace belt tensioner
Replace distributor rotors and caps
Replace master cylinder
Replace waterpump

I've done other stuff like rountine maintence.

__________________
1992 Mercedes-Benz 400E
2002 Mercedes-Benz ML500