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Old 07-21-2007, 11:22 AM
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JimF JimF is offline
'94 S500: only 793 sold!
 
Join Date: Mar 2001
Location: San Diego, CA
Posts: 1,933
Quote:
Originally Posted by slimak9 View Post
Anyone have info on the type of high and low pressure readings I should be receiving? Should I measure with system OFF, LOW SPEED, HIGH SPEED, OR WITH THE VEHICLE TOTALY OFF?
Thanks to all.
Check out MENU#15 and use the Operational Checks to get the readings in the system. The 'best' two are #5 (evap temp) and #7 (compressor pressure in bar).

#5 s/b around 40F and #7 will vary alot from about 7-8 bar on the highway on a cool day to 15 -17 bar in traffic on a hot day. (1 bar = 14.7 psi).
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Last edited by JimF; 07-21-2007 at 01:34 PM.
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