1991 190E A/C BLOWING COLD AIR/HOT AIR - Mercedes-Benz Forum

 
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post #1 of 3 (permalink) Old 10-29-2012, 01:33 PM Thread Starter
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Vehicle: 1991 mercedes 190E 1.8
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1991 190E A/C BLOWING COLD AIR/HOT AIR

Hi everyone, i need some help please, i have a 1991 190E 1.8 which i purchased about 4 years ago and noticed that the former owner had bypassed the heater matrix, the a/c was not blowing cold so i had the system regased and checked for leaks after finding there was no leaks and the a/c was blowing cold i left the garage to go home, about 5 minutes into the journey with a/c still on i noticed it began blowing warm so i switched it off, further down the road i turned it back on it was cold then turned warm this continued for around a year, since then i've changed the dryer, valve near blower motor, and compressor and it's still doing the same thing any suggestions please.

Last edited by viper.5004; 10-29-2012 at 01:36 PM. Reason: missed out a word
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post #2 of 3 (permalink) Old 10-30-2012, 06:58 PM
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Originally Posted by viper.5004 View Post
Hi everyone, i need some help please, i have a 1991 190E 1.8 which i purchased about 4 years ago and noticed that the former owner had bypassed the heater matrix, the a/c was not blowing cold so i had the system regased and checked for leaks after finding there was no leaks and the a/c was blowing cold i left the garage to go home, about 5 minutes into the journey with a/c still on i noticed it began blowing warm so i switched it off, further down the road i turned it back on it was cold then turned warm this continued for around a year, since then i've changed the dryer, valve near blower motor, and compressor and it's still doing the same thing any suggestions please.

Welcoem to Benzworld! SOunds like a pretty bad leak! Head over to the indi shop section.
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post #3 of 3 (permalink) Old 11-02-2012, 05:23 AM
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