Quote:
Both the A/C evaporator and the wiring harness issue were addressed in the final revision of the 140.
|
The wiring harness problem was fixed after 1995 production models.
The A/C evaporator problem was NEVER fixed on W140s !!!
Why? Simple: the problem with the evaporator comes from the mix of copper and alluminun on the unit. Mercedes insisted on using this same combo until the end, even worse, if you buy an evap to replace a failing unit from an authorized M.B. dealer you will get the same DEFECTIVE copper/alluminun evap.
Many people believe the '98 sand '99s W140s are inmune to the evap failure, but they are not. They were simply to new to start showing the problems as older 90's models were doing. Eventually, they will all fail.
The only solution is to switch to an aftermarket FULL copper evap when the original fails.