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The best way to confirm the correct part you want is you go to a Mazda dealer and find the part you want with your VIN to the parts guy. Once you have the part number, then compare it with part number from any other MYs from the CX-5.

2.5L NA without CD (2017 CX-5 and prior) does not have head crack issue. Head crack on 2.5L NA with CD develops the oil leak, whereas head crack on 2.5T develops the coolant leak. Hence they are not at the same area.

If you can find an LED version of the T5 bulb, it definitely will last longer.

Only Mazda knows. But usually the cylinder head is manufactured in an engine plant by the car manufacture, i.e. Mazda itself. IMO this cracked head is a design issue, not the manufacture issue. It doesn’t matter if it’s made in Japan or made in China from Mazda’s engine plants. They all...

Wow, 6 vehicles to maintain by yourself ⋯ :love: I have been trying to reduce the vehicles I’ve owned gradually to unload the burden on maintenance. I have reduced to 2 the minimum here in Texas (once I had 5) and 1 in California. But I can’t resist to maintain 2 more vehicles my 2 kids...

Only on the 2.5T: Coolant Leak Lawsuit Investigation for the CX-5, CX-9 and Mazda6

Don’t know. But we almost have never heard a 2.5L NA without CD had cracked cylinder head problem, that should have enough evidence that the modified heads for CD and turbo have been compromised at the cracked area. The YouTuber from Ukraine / Russia did mention he compared the similar area...

I got a 18X4 steel wheel compact spare from a gen-1 2015 CX-9 which at least has correct size on outer diameter with Dunlop Space Miser MKIII T155/90D18 103M tire. 2017 CX-5 Spare Tire Mod for U.S. It fits perfectly in the spare tire well, without raising the trunk floor:

I simply don’t believe the cracked cylinder head is a casting issue. Like the 2.5T, the head on the original 2.5L NA got modified to accommodate the cylinder deactivation plumbing hence weakened the suspect area (2mm thin wall showed by the YouTube video from Ukraine / Russia). It’s a design...

Yes, that’s a good video to check the oil leak area for the 2.5L NA with CD. The poster says it’s a 2.5L NA with CD in his 2020 Mazda3 with 47,000 miles. Just read the comments and there’re more people there having the cracked head problem on their 2.5L NA with CD. This’s a problem that...

Mazda should use an LED for this gear shifter light instead of a traditional incandescent bulb. Search the YouTube and there’re good videos to show you how to replace the bulb such as these:

it’s a standard ”T5” bulb.

Not at this time on Mazda’s cylinder deactivation as the CD control code is embedded into the PCM software. Even if we can disable it, the 2mm thin wall on the head at the cracked area is still there. This’s a design flaw.

Didn’t know Mazda had offered a 2.0L with 6-speed auto combination after the 2013 MY on the CX-5.

Mazda has been up and down in history. The company likes innovation and isn’t afraid to do it. But it’s a hit and miss, and the insisting on rotary engine back in 1960’s almost caused the company if not the Ford came and rescued them. I was in a Mazda dealer in 1990’s with a friend who was...

Don’t buy any aftermarket extended warranty. The compay could fail and you have nothing left. And it has happened too many times before. Just do a “self-insurance”.

Thanks for the update. I believe you should at least call the dealer to let them know the problem didn’t get fixed. Another visit to the dealer is better if you have time to do it.

I believe only the original manufacture (Mazda) extended warranty may be worth buying. Your brother can do “self insurance”, saving some money to be used to buy extended warranty, and has some saved money to spend just in case the cracked head happens. Since his 2021 CX-5 Sport 2.5L NA with...