M923A2 Windows Very Hard To Raise And Lower

[90M923]

Hi Everyone! So I've Got A 1990 M923A2 And The Windows Have Been Almost Impossible To Get Up And Down Ever Since I Got It In October Of 2015. The Windows Status Were VERY Low On The List Of "Things To Do" Then But It's Time To Fix 'em Now That Everything Else Is 100% Operational. Any Help Or Suggestions Would Be Greatly Appreciated! --Will

 

[simp5782]

Hi Everyone! So I've Got A 1990 M923A2 And The Windows Have Been Almost Impossible To Get Up And Down Ever Since I Got It In October Of 2015. The Windows Status Were VERY Low On The List Of "Things To Do" Then But It's Time To Fix 'em Now That Everything Else Is 100% Operational. Any Help Or Suggestions Would Be Greatly Appreciated! --Will

Lube the channels first with white lithium grease

Then lube the regulator. Remove the crank handle and spray thru the hole there. Sometimes they just freeze up

 

[77 AMG]

My 809 had a *new* window mech put in it at some times in the past, HOWEVER, whom ever did it, messed it up! The one arm that has a single roller on it and is located towards the rear of the door, had some how gotten the roller wedged between the arm "track" and the outside flange of the track. The roller had been ground flat on one area and was the cause of the excessive drag on the window. New mech, and problem solved. I will see if I still have the old mech somewhere, and post a picture of it.

 

[90M923]

Thanks! I'll Try That This Afternoon And See If That Helps.