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LowTemp Tstat. No winter heat?
Installed a low temp thermostat and wondered why I can't get much heat out of the vents in the cold days I'm forced to drive the car to work. Is it due to the low temp thermostat, or has my heater core gone out on me?
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Fixing the heater in Houston..... LOL.
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It's more of an inquiry than a need to repair it!
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Not related unless you goofed and fouled the T-stat. More likely your mix flaps are wrecked and blowing foam out the vents instead of warm air. There is a fix for that.
http://www.renntech.org/forums/tutorials/category/20-boxster-986-common-fixes-and-repairs/ "fixed my no heat problem" |
Randall, on your 97 Box you can use the AC hack to check the cooling water temp.
Think you neex to press two buttons on the left side , the one on top and the other one on the bottom for a few seconds. Cant remember exact how I get there without the ACC in front of me but water temp is on row 6. That will tell you for sure if Termostat is working instead of the flimsy needle |
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Which buttons on the left of what? I'm interested in trying to do this as well. A picture is always nice. :) Thanks |
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To access:hold recirc and air up for 5 sec + and - takes you through different codes, 6c is cooling water temp, 5 c = outside temp Press center vent to show value Auto will take you back |
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Spongebob or anyone else:
Is there a similar procedure for 01? If so, what is it. Thanks |
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I'll try it tomorrow. |
From RennTech:
The AC Climatronic unit is actually manufactured by Audi. There is some sort of serial data stream or CAN interface that allows the AC unit to display engine parameters. This works on 97-00 boxsters. Here is a list of what can be seen: To switch from F to C: Hold down the recirculating button then push both the temperature + - buttons. To access diagnostics: Hold down the Recirculating & Air up buttons for 5 seconds. The + - buttons go up and down through the list of "c" codes. The center vent button switches the left display between the "c" code and its actual value. Press the Auto button to exit. 0c - ERL 1c - Oil Temp? 2c - Inside temp. Sensor mounted in the aspirator assembly at the side of the dash. 3c - Outside temp. Sensor located inside the air inlet of the A/C unit. 4c - Outside temp. Sensor located in front grill of the radiator. The data is fed to the Climatronic from the instrument cluster. When not moving, the instrument cluster OBC temp display retains it's last setting until moving. This is to prevent heat emanating from the radiator affecting the temp. sensor. The A/C unit uses the lower of the two outside air temp values in determining fresh-air temp. 5c - Outside temp. (matches with OBC outside temp display) 6c - Coolant temp. 7c - Footwell discharge temp. 8c - Sun sensor (dash top) 9c - Sun sensor. 10c - Passenger compartment fan speed. 11c - Passenger compartment fan voltage. 12c - Temperature mix Flap command 1=COLD, 100=HOT 13c - Temperature mix Flap position 14c - Central Flap command 15c - Central Flap position 16c - Footwell/Defrost Flap command 17c - Footwell/Defrost Flap position 18c - Recirculation Valve command 1=OFF, 100=RECIRC 19c - Recirculation Valve position (feedback) 20c - Vehicle speed in kph, updating only once per second. (real speed, not speed+safety margin as in the speedometer) 21c - Engine RPM in hundreds. This too only updates once per second. 22c - ? 23c - ? 24c - Sun sensor, exterior lights switch & panel lights control (term. 58 & 58d voltage) - used for A/C panel display illum. 25c - ? 26c - ? 27c - ? 28c - Fan speed? 29c - ? 30c - Engine run time in seconds (255 max.)(=0xff) 31c - Timing counter 32c - Displays test 33c - Software version? Mine states 3.4 34c - ? 35c - Outside temp. from inlet sensor (filtered?) 36c - temp? |
During testing of the LN T Stat it was employed in temps reaching -27F. You shouldn't be having any issues.
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