Be sure to check the following:

Head gasket leak--approximate cost if needed $1500.00
AC evaporator--approximate cost if needed $2200.00
Wire harness--approximate cost if needed $1100.00
Throttle actuator--approximate cost if needed $800.00 (for a reman unit)

It is my opinion that the above items are pretty much guarenteed to fail, especially on cars with 150,000 miles or more. With the help of this site, I have done all 4 of the above items DIY.

I have a 94 E320 Wagon and a 95 E320 Sedan. Both are great cars, but the above mentioned items need to be taken into account, especially if you are not the DIY type.

J. M. van Swaay