Bad Duovalve? Numbers posted
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Joined: Dec 2014
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S500
Bad Duovalve? Numbers posted
Hi Guys,
New to me 2004 S500 4matic, heat is barely adequate. Coolant level is normal, temp gauge rises normally and stays very steady at 85c. Here are the numbers from holding the rest button.
NR.00 +20,5 C
NR.01 +21,0 C
NR.02 -17,0 C
NR.03 +14,8 C
NR.04 +12,6 C
NR.05 -10,0 C
NR.06 +83 C
NR.07 1,5 BAR
NR.08 -11,5 C
NR.09 +11,2 K
NR.10 4,3V
NR.12 0%
NR.13 0%
NR.14 0%
NR.15 0%
NR.16 31
NR.17 1018
NR.18 -20,0 C
NR.19 +2.0 K
NR.20 0%
NR.21 645/min
NR.22 0 KMH
NR.23 99%
NR.24 13.5V
NR.27 100%
Looks like both the left and right heater cores are not getting engine temperature coolant, so I suspect that I will have to replace the Duovalve unless anyone sees something else as the likely culprit. Not sure when the coolant was last flushed but it's still good to -30 and looks clear.
Thanks,
Dan
New to me 2004 S500 4matic, heat is barely adequate. Coolant level is normal, temp gauge rises normally and stays very steady at 85c. Here are the numbers from holding the rest button.
NR.00 +20,5 C
NR.01 +21,0 C
NR.02 -17,0 C
NR.03 +14,8 C
NR.04 +12,6 C
NR.05 -10,0 C
NR.06 +83 C
NR.07 1,5 BAR
NR.08 -11,5 C
NR.09 +11,2 K
NR.10 4,3V
NR.12 0%
NR.13 0%
NR.14 0%
NR.15 0%
NR.16 31
NR.17 1018
NR.18 -20,0 C
NR.19 +2.0 K
NR.20 0%
NR.21 645/min
NR.22 0 KMH
NR.23 99%
NR.24 13.5V
NR.27 100%
Looks like both the left and right heater cores are not getting engine temperature coolant, so I suspect that I will have to replace the Duovalve unless anyone sees something else as the likely culprit. Not sure when the coolant was last flushed but it's still good to -30 and looks clear.
Thanks,
Dan
