GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

AC Blows Cold Air the Warm

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Old Jun 12, 2020 | 03:49 PM
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Romel Vidal's Avatar
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GL 450
Unhappy AC Blows Cold Air the Warm

Hello guys I wonder if you can help me solve my problem ... I own a 2012 GL 450 with 79K miles AC is blowing super cold air and then warm air ... Fan seems to be working great but the temp is changing every 3-5 mins any ideas or suggestions ????
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Old Jun 14, 2020 | 04:28 AM
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Solo wing's Avatar
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From: Dhahran, KSA
2020 E 300 Coupe and 2019 GLS 400
Perhaps an issue with the AC blend door allowing hot air to mix with cold and failing to close completely.
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Old Jun 14, 2020 | 05:33 PM
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BMW 335d
Mine did this when the compressor was on its way out.
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