Not coming up to temperature

[gswartzfager]

Okay, here is the deal. 1985 280 sl. Obviously gray market. I noticed early last spring that the car was not coming up to temperature when it is colder outside. I figured it must be a stuck thermostat, so I replaced it. Sure enough, there was all kinds bits jammed in it. Replaced it with an 80 c version. It seemed to do just fine, but there were no more cold snaps after I replaced it, so the lowest temps it saw were in the high 60s. Car never overheated during the very hot summer.

Now, first cold snap of the season, and it was 38 F this morning. Car will not get past around 50 c. Heat was warm enough for this morning, but I am concerned with the car running so cold, not to mention the lack of heat when it gets much colder. I haven't had this sort of problem with this car in the past. It would usually run in the 70 - 75 c range in the cold.

Any suggestions will be appreciated.

Glenn Swartzfager
1985 280sl