Quote:
Originally Posted by ps2cho
Out of curiosity do you have R134a or R12?
Here's a test I ran on the way home from work today; first pic is AC ON, second pic AC OFF. You can see how much the condenser adds to the heat load...I wonder if R134a in this environment is too much.
|
I thought you were running the r152a? My temps just recently were high like that on the freeway with a/c on with my electric fan set up (
http://www.peachparts.com/shopforum/3746181-post28.html). I just recently went back to the viscous fan and my temps remain low ~85. What you can try doing is swapping out your thermostat for this one: [79°C Thermostat (MB p/n 1102000615)]
Even when idling and the a/c on (using r152a) the temp will creep up to about 105, then the aux fans kick on and the engine will stabilize at about 90 - 95 until I start moving again, then it drops back down to about ~85. Also, my aux water pump is still wired in to cut on at 91C, which may or may not help or make much difference while the car is on, but when the car is shut off after being at about 100+C, even for 5 - 10 mins, the temp is back down in the 80C range vs it being at about 115C when starting back up without it.
Because I'm running a 79C thermostat its hard to say if my temps would be similar to yours. Many many will agree that this is normal, even the mb engineers maybe, but we all know heat kills and I'd rather be running a little on the cooler side than hotter side. If you can, try to order a 79C thermostat and see if it makes a difference. I do not think there is any other issue with your cooling system as you seem to be pretty meticulous in making sure your parts are replaced.
06-12-2018, 12:13 AM
Hybrid Mode
