[QUOTE=Dustin.;2700865]
I found a 1991 190E 2.6 in great condition. It has 104K on the odometer, interior and paint look great, and nearly everything works good.[QUOTE]
Congratulations on a great buy. I once owned a 190e 2.6 and later sorry I sold it.
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Originally Posted by Dustin.
1. The ac works and blows somewhat cold, however I would like it to be colder. It has already been converted to 134A, so can I just buy a can of the stuff and recharge it?
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R134 into a system that was originally designed for R12 is a compromise and will never be as cold as original. Also I.M.H.O. M.B. spent a lot of money on designing the W201 series, perhaps not much of it on the air con system - those of us with high summer temperatures seem to find this.
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Originally Posted by Dustin.
2. The air and heat blow almost completely out of the two middle vents.
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Heat generated by the heater doesn't come from the centre vents however A.C. cooled air does. If you find heated air coming out of the centre vents then the inside core and components may require to have insulation repaired (a big job)
Quote:
Originally Posted by Dustin.
3. I let the car sit and idle for like 5 min and noticed that the electric fan came on. Is this a normal occurrence? (It was about 90 degrees today and it was after an hour long drive).
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Normal operation. You will find that in traffic and or with the AC in operation the engine temperature rises and falls. Before the electric fan operates you should be able to hear the viscous fan come into operation. I.M.H.O. '80's Benz's destined for countries with hotter ambient summer temperatures should have had a more generous engine cooling system.
Quote:
Originally Posted by Dustin.
4. I noticed that as it was idling, the outside temp. gauge kept climbing up, eventually reaching about 104 degrees. However, It was not nearly that hot outside. Once it was driving it was displaying a good reading, just not idling. What could be the cause of that?
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Sometimes hot air escapes forward from underneath the car from the radiator or engine pies and creates a false reading on the outside temp sensor.