Please help & comment:

I am looking to buy a 1993 (W124) 300E w/87k on it. When checking it out I found that the AC worked great, BUT the HEAT would not come on anyway/anyhow.
The thermostat was hot. I also messed around with all of the CC controls. I also checked all fuses.

What are the next primary things to check (i.e. Heater Valve?)?


The owner claims that the heat was working perfect earlier this week...

Thank you in advance.

Kieran-

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Kieran K
Jersey Shore
1988 300CE (for sale, AUG. 2013)
1995 SL320 (88K) - terrific car
1983 300CD
-1993 400E (sold w/74k)
-1988 560SEL (sold w/49k)
- 1995 S420 (sold w/75k)
- 2005 E320 CDI (sold)
- 2007 E350 4M (sold)
- 1984 300D, sold w/305k, CA car, zero rust & over $12k invested
- 2001 E55 AMG (sold w/81k), I really miss it.
- 1982 300CD (sold, all stripped down)