Bluetec Recall and AC
Thread Starter
Member
Joined: May 2021
Posts: 130
Likes: 124
From: HELL
AMG GT Black Series
Bluetec Recall and AC
Has anyone noticed since the recall was completed to the Bluetec retrofit and software update, that the AC stops blowing cold air when you start the car when it's hot, drive to the first stop/light and when sitting the AC starts to blow hot. Once you move it kicks on and never does it again, I've found 2 others that the car does it to, usually when it's over 105ish.
Dealer recharged system, replaced AC compressor, replaced a hose that they thought might be collapsing, none of those have helped. Once I spoke to others they said they have noticed same issue.
Dealer recharged system, replaced AC compressor, replaced a hose that they thought might be collapsing, none of those have helped. Once I spoke to others they said they have noticed same issue.
Thread Starter
Member
Joined: May 2021
Posts: 130
Likes: 124
From: HELL
AMG GT Black Series
My fuel economy does not seem to have suffered, it has been about 3k miles. The long cranking due to glow plug warmup is a little annoying, but whatever. Power wise I do not feel a difference, but I don't beat on it, only issue is the AC and I can't say that's due to the Software yet.
Senior Member
Joined: Jul 2017
Posts: 487
Likes: 114
From: DFW, TX
Ml350 bluetec
On my 2014, it blows hot when it starts and when I drive about 200ft-500ft it blows cold. But I do not know if that is different from before the AEM update? I don't notice these things, I get in, start and drive.
Newbie
Joined: Aug 2020
Posts: 11
Likes: 0
ML350 Bluetec, E250 Bluetec
My 2012 ML350 did that before and after AEM. If the outside temperature was in the mid 90s or higher it would consistently do exactly that. But it happened before the AEM as well. I never did find the problem before trading the car.
