Back about 3 months ago,live in HOT Alabama,the rear air would blow hot hot air at random but only for a few minutes. Did this for about a month, then it quit doing it.Now today I tried to cut heat on to warm up the car, nothing but freezing cold air comes out. It is a 2003 E-500 with 60,000 miles. Anyone have similar problems? or suggestions

 

As per DTB P-B-83.20/72, the changeover valve (part # A2118320584) - #30 in diagram needs to be replaced. Valve is located in the engine compartment, beneath the plastic trim below the windshield on driver’s side.

 

Thanks so much

 

Air and Heat both work great now. Thanks again.

 

Did the dealer replace the part for you at no charge?

 

When issues occur that warrant replacement of parts based on DTBs, do dealerships fix them free of charge even if the vehicles are out of warranty?

 

Only recalls and service campaigns carryover past warranty expiration without question. However, a case can be made to MBUSA by way of the dealership with service management support if the DTB specifically mentions a revised part number to correct malfunction caused by defect.

This DTB does not mention a revised valve but MBUSA EPC (electronic Parts Catalog) shows the recommended part A2118320084 was replaced by A2118320584. Therefore, it is safe to assume the new valve is somehow improved. On this basis, you can request a no cost goodwill repair referencing the DTB, new part number, and depending how far past warranty expiration you are dealership cooperation in presenting your request to MBUSA.

 

does anyone have instructions for R/R og the heater valve for a '05 E320 Mercedes?
Thanks

 

Sticky above https://mbworld.org/forums/e-class-w...rol-valve.html

 

What would be the next solution if this replacement didn't work?