[Guest (MBNZ)]

I think that my ACC (thermotronic) is behaving<br>
strange. I'm trying to use EC mode whenever<br>
possible (no compressor) because of my health<br>
problems (dry air makes breathing difficult to me). Now, with 'EC' lamp lit (economy mode) and<br>
temperature setting at LO or whatever is lower<br>
than ambient temp system is supposed to blow<br>
air with temperature close to ambient temp. I know<br>
that this thing could get spontaneously warm up<br>
due to eg. standing in direct sunlight or due<br>
to excessive heat from engine - but driving it<br>
for few miles should make air blowing from<br>
vents exactly like it is outside.<br>
But not on my car. The air seems to be a little<br>
warmed up all the time, no matter of other<br>
settings. Guys at shop are trying to convince<br>
me that this is normal. Do you guys have any experience? because this makes my car<br>
virtually unusable except with A/C on all the<br>
time because it is simply too hot inside.<br>
Of course i've tried that on ambient temps<br>
in range 19-22'C (72F) - no luck, still blows<br>
warm.

 

[Guest (MBNZ)]

Same thing with mine. It seems to draw air from the top vents and always gets heat from the engine.

 

[Guest (MBNZ)]

thanks, i assumed that it could be a design flaw

 

[Guest (MBNZ)]

YOUR ENVIRON SYSTEM WORKS JUST FINE. YOU HAVE TO REMEMBER, THE CAR IS PRETTY WELL SEALED, INCLUDING THE ENGINE BAY. BECAUSE OF THAT, YOU WILL ALWAYS RECEIVE WARMER THAN AMBIENT TEMP AIR. M/B DOES NOT REC. FULL TIME USE OF THE ECON. MODE FOR THIS VERY REASON [OWNERS MAN.] I THINK YOUR BEST COMPROMISE IS TO USE THE A/C, AND ALSO DRAW IN OUTSIDE THROUGH YOUR MIDDLE CONSOLE VENTS THAT HAS BLUE MARKINGS [ I THINK! I HAVEN'T SEEN 'MAX' IN 2 MONTHS BECAUSE I'M OUT AT SEA.].<br> <br> HOPE IT HELPS,<br> ROB C.