I have a 91 300TE with little heat all the time....enough to take the chill out but not really keep warm. The climate control unit was replaced after the last one fried. The car reaches 80 even on the coldest days. I know there should be more heat but I do not know where to start! Thanks for any help I can get. I also checked the fluid level and the thermosat was replaced not long ago.

Thank you

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Paul

1991 300TE (280,000)
1985 300TD (432,000 miles - retired)
1976 300D (225,000 - retired)
1975 300D (165,000 - retired)