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There are plenty on eBay here in the US. Just bought one from Texas that came out of a 2020 CX-5 and put it in my 2018 CX-9. All the GEN 65 CMUs should be compatible. Newer units reportedly have better hardware.

Replaced the CMU with the one that came out of the 2020 CX-5 and all is working perfectly now with CarPlay and USB hub. Updated firmware to 74.00.311A as well.

Dealer says it is a bad CMU causing the issue. They wanted $1400 for a new one. I found one out of a 2020 CX-5 for less than $200 (several revisions newer than the one that came with the vehicle.) I’m going to swap it and see what happens. If all is good I’ll take it to the dealer and have them...

Update: I removed the screen and checked the connections on the back of the CMU head unit. All connectors were properly seated. Either this is a problem with the head unit itself (hardware or software) or the wiring harness between the hub and the head unit has become compromised. I have an...

I think I did remove the hose to make room, if I recall correctly. I ended up buying this bolt. The head size is bigger but the bolt is the perfect length and thread pitch. (1) M6-1.0 x 16 or M6x16 6mm x 16mm J.I.S. Small Head Hex Bolt 10.9 Zinc | eBay

Our Android Auto and Car Play stopped working recently on our 18 CX-9 (along with NAV and USB data), although USB charging still works. I assumed it was a bad hub. I bought a new genuine hub and replaced it. Unfortunately it didn't. When I go into the diagnostics menu, it shows HUB1 as <off>. Is...

I’ll post the final invoice here when I get the car back

You would think that Mazda would want to offer an incentive to buy their products, being that they are a small company. Service advisor told me that he had another customer with an engine that was just past the 60k powertrain warranty, and Mazda was giving him a difficult time with covering the...

Yes, me too. Despite my initial skepticism of GEICO, they've pulled through and saved me from a $6,000+ repair bill.

UPDATE: Cylinder head not resuable because it has evidence of cracking. Brand new Mazda factory cylinder head being replaced. Technicians checked the bottom half of the engine and pulled the oil pan, no evidence of any contamination or metal flakes in the oil. GEICO picking up the tab for all of...

No it covers gaskets. Dealer wanted to replace the entire head without further diagnosis because of the likelihood of future issues and $200 price difference as opposed to teardown. GEICO wants tull tear down of the head before anything else happens, couldn’t care less about $200 price...

I do as well. Alternative is to put the old head back on with a new gasket, if no cracking present and it is within spec, and sell or trade the vehicle.

Correct, if the dealer notices any visible cracking upon removal, they will let everyone know. Have to say, I'm kind of disappointed with GEICO. It's supposed to be the equivalent of a manufacturer's warranty. GEICO requires the customer to play for all "diagnosis" fees, but the problem has...

Dealer says they are going to examine head closely once removed and will let me know if any evidence of cracking.

They won’t do it. I’m worried that if the head turns out to be “in spec” GEICO will try and deny the $1,575. I asked GEICO if it wasn’t standard practice to send a head to be spec’d at a machine shop even if it is just a head gasket failure and didn’t get a clear response. Dealer says if GEICO...

Update: GEICO is working with the dealer on this Mechanical Breakdown Claim. GEICO is unfortunately requiring the cylinder head to be removed and sent to a machine shop to be torn down and measured, even though the price to do so is (according to my service advisor) $200 less expensive than...

I'm not even pursuing action through Mazda at this point, because I think it will be a futile effort, especially once they find out that I have insurance that will cover the repair. If an oil lab analysis finds no metal, gasoline or coolant contamination in the bottom half, I'll feel relatively...

The dealer says they see no evidence of coolant contamination in the oil, but I think a visual inspection of the dipstick is the only oil analysis they've done.I am sure GEICO will be assigning a claims adjuster to this case, so before they just slap a new head on the block, I will definitely...

Correct, this is for a head replacement only. I don't know if there is a way to determine if the bottom half of the engine has suffered any excess damage without disassembly, or at least an oil analysis. I think spending thousands of dollars to install a salvage engine would be a terrible idea...