I had posted this issue some time ago, thought i had corrected the issue, but apparently only made a very very slight improvement. Issue is low air flow with the climate control system. I now need to use a/c again and any suggestions would be great. Air flow does change with low, auto, and high settings, but not even close in comparison to a 95 e320 climate control system i tried out. Don't know if related to the issue, but i think the air flow is making more noise in the car that it should be making. Pulled the passenger airbag (to test the vacuum pods of the climate control system) and tested each port on the 7-port manifold with a mityvac. All hold vacuum well and with car idling, the supply line from the engine to this manifold has about 16 HG of vacuum. Later, i unplugged the supply line to this manifold, turned on a/c and barely noticeable air was coming out of the system. I read some other posts where if vacuum was issue air goes to defroster. Not the case here as with all push button settings there is weak air flow. I believe blower motor is the incorrect one installed by the PO, unless low or no freon in the system would cause weak air flow. It may be that the blower motor currently installed in my car is for older a/c w124 systems which did not have cabin filters like my car has and which I changed about 1 year ago. I would think freon level would not be tied to air flow amount, but i may be wrong. A/c setting air stays warm causing me to look at freon level being involved. The action from my last post for this issue that made a slight improvement, was removing the squirrel cages off the blower motor, flipping them around, and re-installing them onto blower motor again. Thanx for taking the time to read this and sorry for the long post.

Run a jumper wire from the blu wire at blower to ground w/key On and see if the blower has High speed......

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A Dalton

thank you Arthur, hopefully I can get around to trying this tomorrow. I was worried I was going to need to invest a few hours to get to the blower motor again. 1st attempt at a fix was picking up the motor with squirrel cages and flipping them together as one. Seemed to help a little. 2nd attempt was keeping the motor in the same direction, but flipping the squirrel cages around again seemed to help a little more with the flow. However, this seems like the best idea/suggestion yet

in the case that the blower motor needed to be changed, does anyone know the difference physically (or part numbers) between blower motors for cars with the dust filter versus for cars without the dust filter? a couple of internet searches got me Bosch part number 0 130 111 012, but this is coming up for cars without the dust filter

http://catalog.peachparts.com/ShopByVehicle.epc?q=1994-Mercedes--benz-E3--0--Sedan-Climate--Control&yearid=1994%40%401994&makeid=63%40%40MERCEDES%2DBENZ%40%4063%40%40MERCEDES%2DBENZ%40%40X&modelid=6391%3ABT%7C5%3AMBC%7C1508%3AED%7C10000022%40%40E320+Sedan&catid=242213%40%40Climate+Control&subcatid=242303@@Blower+Motor&mode=PA

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A Dalton

again thanx Arthur, just that now the search begins for a blower motor for car with dust filter without cages (as this will save me over $200) ... i have found a new Bosch motor only for cars without dust filter for about $80, but I am worried it is too weak for my car that has dust filter ... or that there lies some other part difference