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Brake fluid and cabin filter replacement

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Re: brake fluid - the manual (2019 M3 dual motor - 40,000 kms) recommends inspection and replacement if needed every two years. Can this be extended if necessary? Can it be done by a trusted non-Tesla service facility?

Re: cabin filter - if the filter is purchased from Tesla, how difficult is the installation?

Thank you for the advice

Murray
 
Re: brake fluid - the manual (2019 M3 dual motor - 40,000 kms) recommends inspection and replacement if needed every two years. Can this be extended if necessary? Can it be done by a trusted non-Tesla service facility?

Re: cabin filter - if the filter is purchased from Tesla, how difficult is the installation?

Thank you for the advice

Murray
I just had Mobile Service check my 2018 Model 3 LR RWD before my 4 year basic warranty expired. The two things he did was test my brake fluid with a moisture test strip and change my cabin air filters.

He said of all of the brake fluid he has tested, none have had any moisture. I have changed my own cabin air filters at 1 year and 2 years. It is not difficult to change but the cover screw can be difficult to get to. There is a DIY video on the Tesla DIY site.
 
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Cabin air filters ARE available from Tesla, and actually quite inexpensive (but you need 2 for the Model 3).

I used this video for guidance:

It wasn't a trivial replacement, and I ordered some special tools (specifically a Torx bit set and a special hand driver to get to the cover screw -- why do they make life that much more difficult?) With the video I felt confident doing the job, although I will say that it did take some time applying the cleaning foam and trying to figure out how that all worked. I'm glad I did it though.
 
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Brake fluid is hygroscopic- it absorbs water just by existing, so whatever tech claimed none had "any" moisture is just nonsense- doubtless he meant none exceeded the threshold requiring a change yet.

There's certainly folks who go many many years without testing OR changing it but it's not a great idea. Test strips are cheap if you want to be sure though, and any decent shop can do it.
 
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Brake fluid is hygroscopic- it absorbs water just by existing, so whatever tech claimed none had "any" moisture is just nonsense- doubtless he meant none exceeded the threshold requiring a change yet.

There's certainly folks who go many many years without testing OR changing it but it's not a great idea. Test strips are cheap if you want to be sure though, and any decent shop can do it.
You are right. I am sure he meant there was not enough moisture present to change the color of the test strip.

I had a 2010 Prius for 9 years and 139,000 miles. I tested the brake fluid every year for 9 years and never had the strip change color.
 
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