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Discussion Starter · #1 ·
My cx30 has been in the shop for a week now trying to diagnose a water leak behind the drivers seat. Now my 2.5 week old CX50 has a water leak behind the passenger seat in the back row. I pulled the carpets and have an appointment with the same dealer for June 3rd.
There was water on the sill plate plastic trim so I’m assuming it’s coming in through the door like it is on my cx30.

I’m starting to question my decision to buy 2 Mazdas back to back within 3 months
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2023 CX-50 2.5 Turbo Premium Plus
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My cx30 has been in the shop for a week now trying to diagnose a water leak behind the drivers seat. Now my 2.5 week old CX50 has a water leak behind the passenger seat in the back row. I pulled the carpets and have an appointment with the same dealer for June 3rd.
There was water on the sill plate plastic trim so I’m assuming it’s coming in through the door like it is on my cx30.

I’m starting to question my decision to buy 2 Mazdas back to back within 3 months View attachment 275
View attachment 276
Sorry for your trouble. Are there any similarities to when these leaks occurred on both vehicles? (Pressure washer, automated car wash, etc.) or was it just during a rain storm? Trying to gather details so I can look for the same type of leak during certain times.
 

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Discussion Starter · #3 ·
Sorry for your trouble. Are there any similarities to when these leaks occurred on both vehicles? (Pressure washer, automated car wash, etc.) or was it just during a rain storm? Trying to gather details so I can look for the same type of leak during certain times.
Both occurred after Rain storm. And both in the same location just one on the driver side rear seat (cx30) the other on the passenger side rear seat (cx50). I believe it’s coming from either the door (faulty seals) or B pillar (sunroof related).

remove the plastic trim and put your hand under the carpet, the top felt completely dry. Only reason I did this was because when I went to pick up my cx30 from the dealer this morning (was told the water leak was fixed) the carpets felt dry, but when I removed the plastic trim there and pulled up the carpets, they were soaked underneath.
I came straight home and tried the same with the CX50, all felt dry but was soaked under the carpet in the rear on the passengers side.

my best advice is take a hose to the pano sunroof then each door and see if there is any point of intrusion. I went through NY lemon law in 2018 with Ford over a leaking f150. I hope both vehicles are resolved without having to go through that nightmare again!
 

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My cx30 has been in the shop for a week now trying to diagnose a water leak behind the drivers seat. Now my 2.5 week old CX50 has a water leak behind the passenger seat in the back row. I pulled the carpets and have an appointment with the same dealer for June 3rd.
There was water on the sill plate plastic trim so I’m assuming it’s coming in through the door like it is on my cx30.

I’m starting to question my decision to buy 2 Mazdas back to back within 3 months View attachment 275
View attachment 276
I found this TSB for the CX-30 issue from the CX-30 forum I see your on. I would like to think they would not repeat the same issue on the 50.
 

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Discussion Starter · #5 ·
I stopped by the dealer today. They’re contacting Mazda corporate to see how to move forward since Both my cars are exhibiting the same issue. They might have an engineer come out to see what is going on.
 

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I stopped by the dealer today. They’re contacting Mazda corporate to see how to move forward since Both my cars are exhibiting the same issue. They might have an engineer come out to see what is going on.
Sounds like you have a good dealer that is willing to admit something is amiss. Definitely following this thread to see what corporate says.
 

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Discussion Starter · #7 ·
As soon as I hear anything I’ll post an update. Fingers crossed. Just upset that the cx30 smells almost like sewage on the inside due to what I’m assuming is mildew starting to form. Just one more thing to lose sleep over!
 

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Discussion Starter · #8 ·
Heard back from dealer for the CX30. They removed the door panel and water is coming through the door. I hosed down my cX50 and water is coming through the same area (dripping from the bottom trim of the door). It seems to be an issue with the window seal on the cx30. I’m assuming it’s the same for the cx50
 

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Heard back from dealer for the CX30. They removed the door panel and water is coming through the door. I hosed down my cX50 and water is coming through the same area (dripping from the bottom trim of the door). It seems to be an issue with the window seal on the cx30. I’m assuming it’s the same for the cx50
that would be unusual as both vehicles are built at completely different plants (Mexico & Alabama).
 

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Discussion Starter · #11 ·
that would be unusual as both vehicles are built at completely different plants (Mexico & Alabama).
I thought the same but some of the internal components could possibly be shared since the cx50 is built on the same chassis/platform as the cx30. This tsb for the cx30 should address the water leak issue I’m having. I wouldn’t be surprised if they will use a similar fix for the cx50 as the leak is coming from the door

 

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Discussion Starter · #12 ·
Had to reschedule my appointment for another 2 weeks. We did however have a bad downpour all day today and not a single drop of water in the cab. I’m completely confused. Will monitor the situation over the next 2 weeks since we are getting more rain. I don’t understand how it suddenly stopped leaking
 

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Heard back from dealer for the CX30. They removed the door panel and water is coming through the door. I hosed down my cX50 and water is coming through the same area (dripping from the bottom trim of the door). It seems to be an issue with the window seal on the cx30. I’m assuming it’s the same for the cx50
This is very concerning to me as I am seriously thinking about getting a CX 50. Do you suspect that this is just an one-off issue or some kind of design flaw in cx 30 that got carried over to cx 50? Curious as to the dealer's response and fix for this on cx 50.
 

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Discussion Starter · #14 ·
This is very concerning to me as I am seriously thinking about getting a CX 50. Do you suspect that this is just an one-off issue or some kind of design flaw in cx 30 that got carried over to cx 50? Curious as to the dealer's response and fix for this on cx 50.
I wouldn’t let this be a concern. The leak never presented itself since the first time I caught it. I ran a hose over the entire car for a half an hour, had let it sit through multiple rain storms and not a single drop of water has come back into the cab. I have no idea how this happened in the first place but since it hasn’t happened since, I have no reason to bring it in.

My CX30 on the other hand has been at the dealer since May 16th. They have no one capable of replacing the carpet. The leak has been fixed but I can’t get the car back until they replace the carpet. Incredibly frustrating to deal with but I drive a lot of miles for work so at least I’ve been putting that on the loaner.
 

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I wouldn’t let this be a concern. The leak never presented itself since the first time I caught it. I ran a hose over the entire car for a half an hour, had let it sit through multiple rain storms and not a single drop of water has come back into the cab. I have no idea how this happened in the first place but since it hasn’t happened since, I have no reason to bring it in.

My CX30 on the other hand has been at the dealer since May 16th. They have no one capable of replacing the carpet. The leak has been fixed but I can’t get the car back until they replace the carpet. Incredibly frustrating to deal with but I drive a lot of miles for work so at least I’ve been putting that on the loaner.
Appreciate sharing your experience and hope your cx30 issue gets completely resolved soon.
 
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