1998 E320 A/C blows cold on one side warm/cool on the other side
09-04-2009, 12:27 PM
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1998 e320
1998 E320 Help - A/C blows cold on one side warm on the other side
I have a 1998 E 320 the A/C is blowing Cold on the right side but blows Cool/Warm on the left side of the car.
I have run the climate Control Sensors Vaules Program they are:
1 26 Indside
2 28 outside
3 27 Left heater core Temp
4 22 Right heater core temp
5 26 Evaporator Temp
6 77 Coolant Temp
7 12 Ref. Presure
8 52 Ref Temp
The Error Codes:
E b1 227
E b1 234
E B1459
I have replaced the Evaporator Temp. Sensor but it is still blowing the same as before.
Any suggestions?????????
I have run the climate Control Sensors Vaules Program they are:
1 26 Indside
2 28 outside
3 27 Left heater core Temp
4 22 Right heater core temp
5 26 Evaporator Temp
6 77 Coolant Temp
7 12 Ref. Presure
8 52 Ref Temp
The Error Codes:
E b1 227
E b1 234
E B1459
I have replaced the Evaporator Temp. Sensor but it is still blowing the same as before.
Any suggestions?????????
Last edited by flyfishing; 09-04-2009 at 01:51 PM.
09-06-2009, 06:39 PM
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98 Brilliant Silver E320 Wagon
Might be duo-valve. They sometimes stick or are broken. Tap on top with the handle of a screwdriver. If no joy, open up.
DIY on benzworld_dot_org/w210
Good luck.
DIY on benzworld_dot_org/w210
Good luck.
09-07-2009, 11:24 AM
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98 Brilliant Silver E320 Wagon
It is located just in front of the apparatus case. The apparatus case is the large somewhat irregular black plastic case near the rear of the engine bay on the passenger side. It is in about the same place as the fuse box but on the other side.
The duovalve has two silver cylindrical bodies (about the size of a quarter) side by side.
If you'll follow the link I posted earlier you'll find a wealth of information (including lots of pictures) on their repair, cleaning, etc. It is in the DIY sticky named: Help! Tips/DIYs - General Info, Climate Control, etc.
Good luck.
The duovalve has two silver cylindrical bodies (about the size of a quarter) side by side.
If you'll follow the link I posted earlier you'll find a wealth of information (including lots of pictures) on their repair, cleaning, etc. It is in the DIY sticky named: Help! Tips/DIYs - General Info, Climate Control, etc.
Good luck.
Last edited by RichardM98; 09-07-2009 at 11:27 AM.
09-08-2009, 07:19 AM
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w210 3.2 CDI
can be also A/C radiator, cause i replaced two of 2valves no difference, problem was in radiator. run diagnostics in a/c center, let them check radiator for leakage before buying valve.
09-08-2009, 08:44 AM
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2001 E320 RWD - Brilliant Silver/Ash: 100,000+
Agree with the duovalve approach. Just curious, what made you think your evap temp sensor was bad, the 26 reading? What should it be?
Sometimes low R134a can cause uneven vent temps but your value of 12 bars is acceptable. You should find good explanations for all your values and error codes in that DIY sticky RichardM98 mentioned.
RoLi - what is an A/C radiator? There is a condenser, compressor, drier, evaporator, and connecting tubings. The engine's radiator should have nothing to do with his A/C but low coolant can certainly cause the engine to overheat.
Sometimes low R134a can cause uneven vent temps but your value of 12 bars is acceptable. You should find good explanations for all your values and error codes in that DIY sticky RichardM98 mentioned.
RoLi - what is an A/C radiator? There is a condenser, compressor, drier, evaporator, and connecting tubings. The engine's radiator should have nothing to do with his A/C but low coolant can certainly cause the engine to overheat.
09-08-2009, 04:05 PM
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Ambient and Evap temps suggest to me very little cooling is taking place and you may be low on refrigerant.
Warm on left also suggests that.
Isn't EB1459 the comp clutch??? Have you erased them (hold both auto buttons while in error mode) and observed which return?
Warm on left also suggests that.
Isn't EB1459 the comp clutch??? Have you erased them (hold both auto buttons while in error mode) and observed which return?
