2014 E63S: A/C leak

You should know what this is. If not, you probably roll your windows down a lot.
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kevm14
Posts: 15238
Joined: Wed Oct 23, 2013 10:28 pm

2014 E63S: A/C leak

Post by kevm14 »

This is from March or maybe early April??
[X]- A/C light blinks 3 times and goes off when I ask for A/C. Quick forum search says either it is low on refrigerant or a pressure switch is bad. Update: charge was empty. I refilled with 2 cans plus 1 can stop leak plus 0.75-1 oz PAG-46. Light stays on now. We'll see how long it lasts. I don't think sitting for a year did this car any favors...also I didn't account for the $20 of R134a here....sue me.
Pretty sure the capacity is beginning to wane. It is still working but doesn't seem as good as it was a month or two ago. This is disappointing. I will have to borrow Ed's A/C leak detector and see if I can at least pinpoint the issue. I don't know that any A/C repairs to this car are particularly easy or cheap. I'll probably wait a bit longer and then add a can....
kevm14
Posts: 15238
Joined: Wed Oct 23, 2013 10:28 pm

Re: 2014 E63S: A/C leak

Post by kevm14 »

Added one can today. Mileage is 100,114. That seems to have fixed it but I will check on my way home from work.
kevm14
Posts: 15238
Joined: Wed Oct 23, 2013 10:28 pm

Re: 2014 E63S: A/C leak

Post by kevm14 »

Was working well as of yesterday but I realize this is only 3 weeks. That's a low bar. We'll see.
kevm14
Posts: 15238
Joined: Wed Oct 23, 2013 10:28 pm

Re: 2014 E63S: A/C leak

Post by kevm14 »

Last I checked it is still working. Coming up on 2 months. Of course the car will sit all next week but if it works through this week and the week of the 21st then that is a definite improvement. Or is it? Maybe the bar is about 2 months.
kevm14
Posts: 15238
Joined: Wed Oct 23, 2013 10:28 pm

Re: 2014 E63S: A/C leak

Post by kevm14 »

Capacity is down again and there is a temp difference between the right and left center vent (center right vent is warmer, particularly on higher fan speeds). I am not sure if it is worth adding a can at this point in the season though. It will be fairly empty on the spring I am sure and will need two cans again. Looks like it consumes 3 cans/yr (could stretch to 4 if I wanted to put one in now). I don't know how many A/C repairs would provide a return on investment compared to, what, $30/yr of R134a?
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