E-Class (W211) 2003-2009

AC blows hot (Driver SIde only)

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Old 05-29-2019, 10:49 AM
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03 Mercedes E500, 74 Vette, 93 Mirage River Racer 111mph. in 12 seconds, 94 Lincoln Mark VIII + NOS
AC blows hot (Driver SIde only)

Noticed this year that driver side is blowing warm to hot air, occasionally that vents for the rear seat does too!

Any ideas?
Old 05-29-2019, 11:39 AM
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'71 Pinto
First step check refrigerant.
Old 05-29-2019, 03:09 PM
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1922 Ford Model T / no OBD
You could also check a million previous AC threads how to troubleshoot with link.
Here it is again. http://www.mercedesmedic.com/ac-air-...le-codes-list/
Old 07-11-2019, 11:26 AM
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03 Mercedes E500, 74 Vette, 93 Mirage River Racer 111mph. in 12 seconds, 94 Lincoln Mark VIII + NOS
Originally Posted by konigstiger
First step check refrigerant.
Do you happen to know if the 2003 E500's have use Freon or 134a?
Old 07-11-2019, 11:37 AM
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http://www.mercedesmedic.com/diy-r134a-ac-recharge/
Old 07-11-2019, 11:38 AM
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1922 Ford Model T / no OBD
MB started using r134 over 20 years ago.
Freon is banned on US soil since and to get old cars refilled, you need special licence.
Old 07-12-2019, 12:11 PM
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03 Mercedes E500, 74 Vette, 93 Mirage River Racer 111mph. in 12 seconds, 94 Lincoln Mark VIII + NOS
Originally Posted by kajtek1
MB started using r134 over 20 years ago.
Freon is banned on US soil since and to get old cars refilled, you need special licence.
Exactly... not sure why I was told Freon. Now my 94 Lincoln still has Freon in the system but was almost 100% sure it was 134

THANKS

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