Weak AC iin 2016 S550
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2016 S550 Sedan
Weak AC iin 2016 S550
New owner of 2016 S550 with 18,500 miles. I quickly discovered the AC does not cool properly. Does fine for about an hour and then gets uncomfortable.
Dealership checked and advised, "No faults were presented. Works as designed. Must be operator error."
Any thoughts?
I've never had a car with such lousy AC.
Quite disturbing to say the least, especially living in New Orleans.
Thanks in advance for any thoughts and ideas.
Dealership checked and advised, "No faults were presented. Works as designed. Must be operator error."
Any thoughts?
I've never had a car with such lousy AC.
Quite disturbing to say the least, especially living in New Orleans.
Thanks in advance for any thoughts and ideas.
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S600
Works at first, then diminished capacity later on is a sign of the Expansion valve being partially logged.
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2016 S550 Sedan
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From: Rhode Island
2014 E350 Sport (sold), 2015 S550 Sport (sold), 2018 S560 Sport (sold), 2018 GLE43, 2014 E550
Must be an issue. It can 100 degrees out and after a few minutes I have to turn down the A/C as the cold air on my bald head gives me a headache.
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S600
It is probably "not that hard" to get to the expansion valve--they are serviced rather regularly.
However, you are supposed to evacuate the "freon" before removing the EV and the refill the system after the new valve is in place.
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2014 S550
Thread Starter
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Joined: Sep 2019
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2016 S550 Sedan
Member
Joined: Aug 2018
Posts: 137
Likes: 26
2014 S550
That's true but over time all automotive systems leak a little freon. The seals near the spinning part of the compressor will seep a little gas. A perfectly functioning will really need to be evacuated and charged properly after some number of years.
I purchased a W221 body s-class from a dealer that said the previous owner had traded it in because of some AC issue. The dealer told me they never could find any fault at all and it worked fine. As it turns out it was low on freon. It only was noticeable on a long road trip where the interior of the car was able to cool down and stabilize. At that point the low freon caused the evaporator to freeze up. It took me a couple of times to figure it out. I evacuated all the freon (it seemed to be about 1/2 full) and recharged with the proper weight. The AC never had any more issues and I never had to charge it again over the 5 years I owned it.
I purchased a W221 body s-class from a dealer that said the previous owner had traded it in because of some AC issue. The dealer told me they never could find any fault at all and it worked fine. As it turns out it was low on freon. It only was noticeable on a long road trip where the interior of the car was able to cool down and stabilize. At that point the low freon caused the evaporator to freeze up. It took me a couple of times to figure it out. I evacuated all the freon (it seemed to be about 1/2 full) and recharged with the proper weight. The AC never had any more issues and I never had to charge it again over the 5 years I owned it.
Thread Starter
Junior Member
Joined: Sep 2019
Posts: 21
Likes: 2
2016 S550 Sedan
That's true but over time all automotive systems leak a little freon. The seals near the spinning part of the compressor will seep a little gas. A perfectly functioning will really need to be evacuated and charged properly after some number of years.
I purchased a W221 body s-class from a dealer that said the previous owner had traded it in because of some AC issue. The dealer told me they never could find any fault at all and it worked fine. As it turns out it was low on freon. It only was noticeable on a long road trip where the interior of the car was able to cool down and stabilize. At that point the low freon caused the evaporator to freeze up. It took me a couple of times to figure it out. I evacuated all the freon (it seemed to be about 1/2 full) and recharged with the proper weight. The AC never had any more issues and I never had to charge it again over the 5 years I owned it.
I purchased a W221 body s-class from a dealer that said the previous owner had traded it in because of some AC issue. The dealer told me they never could find any fault at all and it worked fine. As it turns out it was low on freon. It only was noticeable on a long road trip where the interior of the car was able to cool down and stabilize. At that point the low freon caused the evaporator to freeze up. It took me a couple of times to figure it out. I evacuated all the freon (it seemed to be about 1/2 full) and recharged with the proper weight. The AC never had any more issues and I never had to charge it again over the 5 years I owned it.
Thanks so much for the assist,from you all!
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2016 S550 Sedan
You Konigstiger are exceeding expectations. Thanks so much for the how to's!!
My 550 is still under warranty so I took it back to dealer yesterday and advised them that the poor AC is not due to my ineptness. I just picked the car back up after they said they determined it was low on Freon, evacuated the system and replenished with proper weight, adding dye and discovering no leak.
It is funny your how to came in the same day the repaired it.
Thanks again for this kind effort!
My 550 is still under warranty so I took it back to dealer yesterday and advised them that the poor AC is not due to my ineptness. I just picked the car back up after they said they determined it was low on Freon, evacuated the system and replenished with proper weight, adding dye and discovering no leak.
It is funny your how to came in the same day the repaired it.
Thanks again for this kind effort!
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Joined: Aug 2017
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From: Atlanta, GA
2015 S-550, 2017 Jaguar XE 35t R-Sport, 2007 Jaguar S-Type 3.0, 2013 S550 (traded)
Hello,
I just had this same issue with my 2015 S-550... had to take to the dealership twice. The first time, they refilled the freon and returned it to me. The same thing happened. Took the car back, they kept it for 2 weeks. They ran the car all day long every day to figure out what was the issue. They never found what was the problem, so they ordered a whole new A/C unit from Germany. Two days into the new system, all is well. However, I will happily take the car back and have a loaner for another two weeks until the problem is fixed. It should be 100% covered under warranty. My recommendation is to continue taking the car back to the dealer until the problem is fixed. Hope this helps.
I just had this same issue with my 2015 S-550... had to take to the dealership twice. The first time, they refilled the freon and returned it to me. The same thing happened. Took the car back, they kept it for 2 weeks. They ran the car all day long every day to figure out what was the issue. They never found what was the problem, so they ordered a whole new A/C unit from Germany. Two days into the new system, all is well. However, I will happily take the car back and have a loaner for another two weeks until the problem is fixed. It should be 100% covered under warranty. My recommendation is to continue taking the car back to the dealer until the problem is fixed. Hope this helps.
AC Repaired
