My interior fan has stopped working on my 1998 230SLK, although conditioned air is still coming through the vents -- it happened the morning after prolonged use of the defrost setting to clear up the effects of a huge condensation of water on the inside of my windshield. I want to check if a fuse burnt out (which happened once to a previous Mercedes I owned), but can't locate the fuse for the fan. I opened the fuse case under the hood, but the interior fan is not called out on the fuse directory. Does anyone know where the fuse for the interior fan is located? If it is under the hood in the fuse box, what number is it?
I haven't checked the secondary location yet because my owners' manual indicated that the secondary fuse box contains fuses for exterior lights and the fuse box in the trunk contains the fuses for the top mechanism. I will check the secondary location tomorrow if I don't get a definitive answer this evening, but I can't do it without taking the car out of the garage because I can't open the door wide enough inside the garage and it is raining right now outside of Philly.
I understand. Others with r170(230/320)s will chime in. you might 'search' (upper right) for fuse map for your model.
I wrote a reply in the new thread that was above mine. I HAVE the diagram that was includes in the above thread. The problem is that none indicate that they are for the interior fan. Several are for the Tempmatic system -- which is the air conditioning system, but the fan is the only thing that has stopped, interior lights, etc function and I am not sure this is even the right classification for the interior fan. At least are for 5 amp fuses, which seems too small. I checked the 30 amp fuse and outside of a little black on the blades below the plastic, it appears fine.
I thought everyone responding ought to know that I never found out which of four different fuses ran the fan. I took out every fuse that related to the air conditioning system, but found none burned or broken. So I searched some more and cured the problem thanks to another link on the slkworld site. I ended up taking out the fan and the regulator, removing leaves and debris from both elements and putting them back and the problem was cured. Didn't find anything obscuring the fan, but the regulator was pretty warm -- but it looks like a heat sink so I'm not sure that was an issue. Anyhow, the problem was totally cured by taking out the two elements, cleaning them up and putting all them back.