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  • Mazdas247

    Question on 2010+ Mazdaspeed3 Drive Axles

    By topFC3Sman

    Good morning everyone, Can anyone check the length, diameter & spline-count of the CV axle & drive-axle splines where they engage with the differential? I'm looking into installing a 2010+ Speed3 transmission in my 2012 Mazda5 since the existing manual trans has what sounds like a bad bearing and the used part cost & overall gearing for it is comparable to the Speed3 (but the speed3 has an LSD). Keeping the stock NA 2.5L engine for now, but a future turbo or 2.3L DISI swap is a nice option... Read more

  • Mazdas247

    Gen 3 CX-5: Owners Chime In

    By Snake

    Here is a new thread dedicated to the new generation CX-5. New owners, let's learn and share about the new generation together. Share experiences and tips. Ask questions, too. I am just starting the process of getting to know my next generation 2026 CX-5 Preferred. I test drove one the other day and I was really impressed with the improved interior space and ride comfort compared to our 2024 CX-5, which we love. A lot has changed in functionality so it will take time to get to know it but... Read more

  • Mazdas247

    1st to 2nd Gen CX-5 Front control arm upgrade

    By JustThisguy

    After seeing several threads of the failures in the rear bushing of the front control arm in the 2103-16 CX-5 I did some research and saw that the 2017+ control arm appears to have a redesigned bushing to address the cracking problem. As it appears to me the cracks begin and propagate from the voids in the bushing, and the 2017+ bushing does not have any voids and appears to be thicker, so I assume it should last a bit longer at least. As I needed to replace the passenger side arm as both... Read more

  • Mazdas247

    Is AWD module program necessary after differential replacement?

    By bez_ucha

    Hello, I managed to replace rear differential (with coupler) due to noise from the original. I was under impression that if the new coupler data will not be programmed to AWD, there will be a number of lights on the dashboard (at least ABS, traction, AWD) in meantime I got... nothing. So my question is - is the programming of the new viscous coupler calibration data necessary? Thanks, Bez.

  • Mazdas247

    2016 CX-9 FSC Retrofit (TK56 to GSH7) – CAN Communication Issues & Dynamic Aiming

    By 4ERR0R4

    Hi everyone, I'm a CX9 owner from Australia, and I'm currently working on upgrading the FSC on my 2016 CX-9 (TC). My original FSC is TK56-67XCX (Strategy: TK56-67XK2-B) and I want to upgrade to GSH7-67XCX-T (Strategy: GSH7-67XK2-S). My radar is TK80-67XA1. I've replaced the Gen 1 TK56 FSC with a newer Gen 2 GSH7 unit. FORScan successfully recognises the new camera, and I've performed as-built programming and module initialisation. However, I'm still getting the following DTCs: FSC... Read more

  • Mazdas247

    2026 CX-50 transfer case oil change

    By PoMansMazda

    I had to do an engine oil change on my 2026 CX-50 today so I took the opportunity to drain/fill the T-case as well given the vehicle is at 14500 miles. I topped up the level on the rear differential oil level some weeks back. Much like the rear diff, the 23mm fill plug on the T-case wasn't very tight. Again I had to use a 6pt 24mm socket as I do not have anything that is 23mm. I have ordered a 23mm socket to have on hand. The ~400mL of gear oil that drained out didn't look bad, but... Read more

  • Mazdas247

    Amazon/eBay Viscous Coupler (for Rear Differential)

    By joe-diy

    I need to replace my Viscous Coupler on my 2015 CX-5 2.5L 6SP Auto. Has anyone used one of the Amazon or ebay aftermarket ones? They are $250-300 vs $1200+ OEM. Car has 150k on it, newer to me so not wanting to put a ton into it until I get a feel if it's a 300ker. My question is if you were able to get the ECM programmed for the new aftermarket one. The OEM units apparently are tested and tagged with detailed results that are on a sticker that is entered at dealer when flashing. I'm... Read more

  • Mazdas247

    What have you done to your CX-9 today?

    By sm1ke

    Hi all! This seems to be a pretty common thread topic on some of the other boards I visit. I did a search and couldn't find anything posted for the CX-9, so I figured I'd create one. Mods, if there is already a similar thread, please feel free to close this one! Did you just carve out a few corners on the mountain roads or take the CX-9 for a road trip? Install a new cosmetic piece? DIY'd a cabin filter install? Swapped your winter wheels out for your summer set (or vice versa)? Show off... Read more

  • Mazdas247

    Would you buy a 2016 CX-9 over a 2019 CX-5 for a highway cruiser both for 25,000 euros?

    By raspberry27

    Need a car that I will drive roughly 6000-8000 miles /10,000 - 12,000 km an year on the highway (Europe) at 80 mph for 3.5-4 hours at a time. When I need to drive in the city I prefer to rent small EV cars, so I get cheaper parking. For 25,000 euros I can get a 2016 CX-9 at 60,000 - 80,000 miles /100,000 km - 120,000 km or a 2019 CX-5 at 50,000 miles - 60,000 miles / 80,000 km - 100,000 km. Prefer to get petrol as they seem more reliable and there will be 2-3 weeks at a time that I won't... Read more

  • Mazdas247

    CX-9 Rocking on Steady Acceleration

    By Spoonagain

    Hi everyone, first time poster here hoping to get suggestions on what to check/replace or solutions. I have a 2017 Mazda CX9 GT AWD with 320,000KMS, this year it's developed a rocking (back and fourth) on steady acceleration from full stops. The rocking will go away if I remove my foot and then accelerate slower or faster. I've tried it in Manual mode and appears to mostly happen in second gear. It rocks me in my seat back and forth as I accelerate unless I stop accelerating and slow do or... Read more

  • Mazdas247

    Said goodbye to the original RedBaron (car)

    By RedBaron

    I joined here shortly after we bought my wife's Crystal Red 2014 MY CX-5 Touring in 2013. My wife upgraded to a 2019 CX-5 and we passed down the '14 to our son. It now has 178,000 miles on it and has started to fall apart, with the exhaust leaking (and resulting codes that won't pass emissions testing that is now due), numerous rattles and clunks from (it seems) all 4 corners, plus an enormous clang from the rear, that happened while I was in the car turning tight into a parking spot - I... Read more

  • Mazdas247

    2021 CX-5 Touring Infotainment Black Screen

    By 2cooleng

    Recently bought a 2021 CX-5 Touring and we’re having issues with the infotainment screen going black. I had not read about this issue until we had the problem, and I see now it’s pretty common, but it seems to be happening on and off for us and I was wondering if anyone had dealt with that. Every time it goes black the sound still works, but the reset option using the mute, nav, and back buttons don’t work. I’ve also disconnected the battery and that seemed to help for a couple of days, but... Read more

  • Mazdas247

    CX-5 Cruise Control needs enabled each morning suddenly

    By joc1394

    I purchased my 2025 CX-5 Turbo Signature in December of 2025, it currently has less than 13k miles on it. Up until the last few weeks I have left the Cruise Control enabled and just had to press the “set” button to set the cruise when hopping on the highway. However, over the last few weeks, it seems I have to press the right button below the cruise control “set” button and then press “set” to use the cruise as of late. I’ve started to pay close attention to make sure I’m not pushing any... Read more

  • Mazdas247

    Mazda5 front-end bearing noise (wheel-speed)

    By topFC3Sman

    Over the past few weeks, a whirring noise from the front end of my 2012 Mazda5 (6MT, 160k miles) has become a lot more prominent, especially over 40 MPH. It's definitely speed-dependent, and is loudest when the drivetrain is loaded either when applying throttle in-gear or engine braking. Putting in the clutch or putting the transmission in neutral make the noise practically disappear. I replaced the drivers side front wheel bearing about 40k miles ago, and just replaced the passenger's side... Read more

  • Mazdas247

    CX-50 Owners: Anyone using a heavy-duty jump starter that actually fits the battery bay?

    By michaelthom

    I drive a 2024 CX-50 and want to keep a jump starter in the car for winter around Portland, but the space under the cargo floor is tighter than I expected. Looking at heavy-duty units rated for larger engines, and one thing I keep wondering about is whether the clamps and cables are long enough to reach both terminals without stretching across the engine cover. I have read online that some of these bigger boosters are bulky and the leads are short, but I have not handled one in person, so I... Read more

  • Mazdas247

    How to reset the i-stop system (eg after battery replacement)

    By 151614

    On CX5s and other Mazda's with the i-stop system, i-stop may not activate after the battery has been replaced or was disconnected during some servicing. In this case you will either need to ask your dealer to reset it, which they can by connecting up to the diagnostic system, or you can do it yourself. I found some instructions for a MZR 2.0, but it worked very similarly, as below, on my CX5 2.2 diesel. 1. Warm up the engine. Turn everything electrical off that you can - radio, A/C etc... Read more

  • Mazdas247

    2026 Mazda CX-5 Redesign: Thoughts from a Longtime Mazda Owner

    By tobias_funke

    I've been a loyal Mazda owner for decades, having owned an MX-6, Mazda6, 2016 CX-5, 2020 CX-30, and now a 2025 CX-5. I've always appreciated Mazda's reliability, driving dynamics, and attention to detail.​ I purchased my first CX-5 in late 2015 (a 2016 model), when you rarely saw another CX-5 on the road. Fast-forward 10 years, and they're everywhere. That's a testament to how well Mazda has developed the vehicle and built its reputation. My original CX-5 served me extremely well for... Read more

  • Mazdas247

    SkyActiv Oil Analysis Thread

    By Kedis82ZE8

    A dedicated thread was mentioned for oil analysis tests so I will start this thread off with mine. I realize there are numerous other threads with oil reports. Hopefully this one will be easier to find. Just came in about 10 minutes ago. Looks overall good to me What are thoughts on the higher viscosity? I did change on cold motor and at around 1/3 of a drain I took sample I sure wish the pre-'16s allowed for the extended drain intervals.

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