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Discussion Starter · #1 · (Edited)
I'll I've had my Mazda cx-30 GT Sport tech for around 3-weeks done 900 miles in it it and it bounces all over the road it just seems like it wallows and you feel every little bump through the driver's seat and passenger seat I don't know if that's anything that any of you are experiencing. Also no steaming up quite bad and trying to get the windscreen clear any ideas at the best way!!
Hi all just to let you all know that the rear shocks had seized have been replaced by mazda I picked up the car and it was still the same so it's been back at the dealership for two weeks and guess what they found wait for it a leeking shock alarm bells are ringing
Has any one had the same issue.?
 

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CX30 GT SPORT. A Road cyclists who drives a CX30 on the odd occasion...
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I'll I've had my Mazda cx-30 GT Sport tech for around 3-weeks done 900 miles in it it and it bounces all over the road it just seems like it wallows and you feel every little bump through the driver's seat and passenger seat I don't know if that's anything that any of you are experiencing. Also no steaming up quite bad and trying to get the windscreen clear any ideas at the best way!!
... Check the tyre pressures.. alot are at delivery psi not the 36psi that's needed.. with the steaming up, just check the air is not on recycled 👍
 

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I could not tolerate the harshness of my 3 but it has lower profile tires. I went from factory recommended 36/36 to 32/30. That made it tolerable without impacting my handling expectations.
That is sure to affect mileage and that's why they recommend rock hard tire pressure. It's a trade off I make happily. If at some point your TPS alarm lights up, You will first have to fill the tires to factory recommendations and drive it a ways before letting the air back out to the lower level.

As for "wallowing" I never had any of that before or after. Could be alignment problem or faulty strut.
 

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Discussion Starter · #4 ·
... Check the tyre pressures.. alot are at delivery psi not the 36psi that's needed.. with the steaming up, just check the air is not on recycled 👍
Thanks i reset the tyre pressure as soon as I cook delivery, and with the steaming up I will try that
 

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2020 CX-30 Skyactiv X AWD UK
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I’d suggest getting your wheels balanced using a road force balancer. Although it’s not strictly what the machine is designed for, It’ll pick up subtle flat spots on the tyres that could be causing this behaviour. I once took delivery of a new Mazda that had flat spots on all four tyres as it had been strapped down too hard during transport.
 

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2020 Mazda CX30 Soul Red Select AWD
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Once my cx30 hit 4,000 miles the ride started to soften up. Before that it was quite something when driving through NYC etc. But now that I have 10,000 miles I am extremely satisfied with the ride quality! While also maintaining its excellent handling and turn in. I would just give it time for the bushings and struts to wear in a bit.
 

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Here's to hoping it softens up! I've also noticed the CX30 has a pretty harsh suspension compared with previous vehicles I've owned. FWD, tires at the recommended 36psi.

To some degree, I expected this going into the purchase. My experience so far has actually been exactly what Alex on Autos (YouTube reviewer) said about the CX30's suspension. On smooth roads it's a dream, but any small bumps and imperfections and you'll feel it.
 

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Here's to hoping it softens up! I've also noticed the CX30 has a pretty harsh suspension compared with previous vehicles I've owned. FWD, tires at the recommended 36psi.

To some degree, I expected this going into the purchase. My experience so far has actually been exactly what Alex on Autos (YouTube reviewer) said about the CX30's suspension. On smooth roads it's a dream, but any small bumps and imperfections and you'll feel it.
I just recently bumped my psi down from 36 to 33 just to see if it made a difference in smoothness . It definantely does and I don't think 33 compare to 36 will do much towards tire integrity and safety of handling. Seems to be less rough at that psi. I'm going to try it out for a bit
 

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I just recently bumped my psi down from 36 to 33 just to see if it made a difference in smoothness . It definantely does and I don't think 33 compare to 36 will do much towards tire integrity and safety of handling. Seems to be less rough at that psi. I'm going to try it out for a bit
Go ahead and drop it another couple of PSI at the rear. You will not notice a difference in handling( Maybe, if you drive really hard), but ride is much better.
As a teenager I used to make fun of my stepdad for dropping his tire pressures for a better ride. But then his old lead sled Buick already wallowed like a pig before going from the recommended 32 to 28.
36 up front may give optimal handling and fuel economy, but 36 in the lightly loaded rear just promotes ride harshness, skittishness and understeer. I think they recommend 36 at the rear to help fuel economy a smidge and keep things simple for the customer. It's hard to believe, from an engineering standpoint, that both ends need exactly the same pressure given their different loads and dynamic roles.

For example, BMW recommends 31/31 for its M3 with rear drive and near 50/50 weight distribution. This makes sense when the fronts steer and the rears drive, distributing the work load evenly corner to corner. The Mazda has 61%of it's weight forward and the fronts both steer and drive. The fronts do most of the work. That is why they wear twice as fast as the backs.

Like Mr. Baggins above, do not fear to experiment within reasonable limits.
Optimal for me and my 3 is 32 or 33 up front and 30 rear.
 

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Purchasing a Mazda product and complaining about a stiff ride is funny to me. Just like people who buy BMWs and complain about ride quality. These are cars tuned for people who like to drive. If you want a soft ride then get an appliance like a Highlander. These machines are designed to handle extremely well... So there is always a trade off and that is a stiffer ride than most.
 

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Go ahead and drop it another couple of PSI at the rear. You will not notice a difference in handling( Maybe, if you drive really hard), but ride is much better.
As a teenager I used to make fun of my stepdad for dropping his tire pressures for a better ride. But then his old lead sled Buick already wallowed like a pig before going from the recommended 32 to 28.
36 up front may give optimal handling and fuel economy, but 36 in the lightly loaded rear just promotes ride harshness, skittishness and understeer. I think they recommend 36 at the rear to help fuel economy a smidge and keep things simple for the customer. It's hard to believe, from an engineering standpoint, that both ends need exactly the same pressure given their different loads and dynamic roles.

For example, BMW recommends 31/31 for its M3 with rear drive and near 50/50 weight distribution. This makes sense when the fronts steer and the rears drive, distributing the work load evenly corner to corner. The Mazda has 61%of it's weight forward and the fronts both steer and drive. The fronts do most of the work. That is why they wear twice as fast as the backs.

Like Mr. Baggins above, do not fear to experiment within reasonable limits.
Optimal for me and my 3 is 32 or 33 up front and 30 rear.
Yea I don't find it a particularly rough car, just wanted to see the difference.

An experiment if you will
 

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Discussion Starter · #12 ·
Purchasing a Mazda product and complaining about a stiff ride is funny to me. Just like people who buy BMWs and complain about ride quality. These are cars tuned for people who like to drive. If you want a soft ride then get an appliance like a Highlander. These machines are designed to handle extremely well... So there is always a trade off and that is a stiffer ride than most.
Re Well worth a complaint as mazda have had the car back and the rear shock absorbers had locked solid.
 

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Discussion Starter · #13 ·
I'll I've had my Mazda cx-30 GT Sport tech for around 3-weeks done 900 miles in it it and it bounces all over the road it just seems like it wallows and you feel every little bump through the driver's seat and passenger seat I don't know if that's anything that any of you are experiencing. Also no steaming up quite bad and trying to get the windscreen clear any ideas at the best way!!
Hi all just to let you all know that the rear shocks had seized have been replaced by mazda I picked up the car and it was still the same so it's been back at the dealership for two weeks and guess what they found wait for it a leeking shock alarm bells are ringing
Has any one had the same issue.?
 

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PAST OWNER OF A AWD 2020 GT CX-30 ceramic coated-curently have a 100th Anniversary edition mazda 3
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Purchasing a Mazda product and complaining about a stiff ride is funny to me. Just like people who buy BMWs and complain about ride quality. These are cars tuned for people who like to drive. If you want a soft ride then get an appliance like a Highlander. These machines are designed to handle extremely well... So there is always a trade off and that is a stiffer ride than most.
Lol funny 😂 iv said that a Mazda is geared towards a certain nich of people. Personally I like a stiff ride with little to no body roll 🙂
 

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Re Well worth a complaint as mazda have had the car back and the rear shock absorbers had locked solid.
it also doesn’t help by having a rear torsion beam set up vs the ind.multi link as to why Mazda “cheapened out” on this is simply due to cost. That’s why I got rid of our CX3 after a year as the torsion rears were too harsh, firm and jarring for me! Granting the CX30 is a better vehicle than the CX3 Mazda should have used multi link setup. Replaced the CX3 with a 6 instead and found ride to be a lot better, quieter, and softer with the independent multi link rears!
 

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TIRE FLAT SPOTS

Many car come of the assemply line at say one a minute then the car may sits and sit for days and may be weeks.
New / old Cars sit here or some time and some where else or at the show room back lot for weeks.
No body talks about the dry engine.
Here is the stinger I wonder why some manufacturer puts low cost tire on new cars?
I am suprised that the tire side walls are not cracking as that is where the soft / flat spot is .
I had the front shocks on my CX3 go bad after 3 years an 8,000 +/- miles . it was covered by waranty. The dealer blamed it on the roads. Ha !
New cars may enjoy considerable time waiting, as cars sit in parking lots or on the loading dock.
You are lucky you car does not come from India

" Putty and paint hide many a complaint ".
 

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All new Mazdas are shipped with maximum allowable pressure in their tires(usually around 50psig). I expect other manufacturers do the same. Of course what happens at the dealers----who knows.
 

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I bought my CX-30 with snow tires (Michelin X-Ice), and I was very happy with the ride quality and handling. But when I switched over to the stock Turanzas I could not believe the difference. Harsh to the point I could feel every road imperfection. And more tire noise.

After doing some research I opted for lower profile Continental DWS06 in 235/50 x 18 as I bought 8” mags. I found a tire pressure calculator which said optimal was 34 PSI based on stock pressure because the volume of the tire at this size is greater than the stock size. I also dropped the rear tires to 32 PSI as I found the torque vectoring was overcompensating when pushing hard in a curve when the car was empty.

The ride now is super plush, and steering feel improved.

When it comes to determining tire pressure, the main considerations are the tire size vs the gross axle weight rating (GAWR). This is mainly for safety reasons. If you want to have better fuel economy, you will choose a tire with a smaller volume that can support the axle weight but still can handle well, and with a good tolerance from maximum tire pressure. Mazda engineers most likely used this approach to arrive at 215/55x18 and 215/65x16, which have the same volume of air.

In my Canadian spec GT with cylinder deactivation, the difference in GAWR between the front and rear is 267 lbs or 133.5 lbs per axle. Considering you have a luggage compartment that might be loaded with gear and possibly rear seat passengers, an engineer will specify the same inflation pressure front and rear, even though the rear of the car most of time is not loaded. Otherwise you would have to consciously increase your rear tire pressure if you loaded up the car, and who does that, right?

Since tire rotation is recommended the difference in wear from the rear being slightly overinflated most of the time will even out.

Considering it’s just me and the SO in the car, and rarely rear seat passengers (during COVID) or hauling heavy stuff in the trunk, I could safely lower the rear tire pressure conservatively to a more optimal PSI.

TL;DR

If you are running the stock tire size or a size that has the same air volume as stock, keep to the recommended tire pressure. If you don’t like the ride, change the tires for something better. You won’t regret it.
 

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TIRE PRESSURE. Is the Genie in the bottle trying to leak out, as i see many look to the forum in a quest for the ideal tire pressure .

It all boils down to,there is no ideal tire pressure.

What is good for me ,may not be good for many others. There are many if not hundreds of variables , from weight, to the age ,the remaining tread life , and the seasons all impact tire pressure which makes me wonder how a pasenger jets deals with the problem.

I have been messing with tire pressure for years .

I learned to inspect my tires on a regular basis.

May be the best advise any one can give would be to check your tire pressure often, failing that you are inviting trouble.

I have been driving for 68 years in 7 countries ,motor bikes and cars. When things get too comfortble in your car, check your tires because you need to feel and hear the road talking to you.

CX3 Soul Red 2 ltr 6 gear Auto, with black fluffy bathroom mats, rubber went out twenty years ago .
 

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WIDER TIRES
I am not going to get into a bunch of numbers here, and far be that i would bust ant bodies bubble, its you car and your money.

First of all therre is nothing wrong with a 215 tire square( = allround )may be the best for wet breaking and less likely to aqua plane.

Increase the width to 225 you could improve your dry performance however the numbers are not much different certainly a good all round tire size, now push the limits to biger wheels with a much wider tires for the sake of looks ,you increase the risk of aqua planing and steering problems the CX3 is not a race car.

A 50 profile tire is a good all round for stability and a reasonable amount of comfort.

The higher speed we drive we increase risk.

Biger tires on a small light weight car is far form ideal as steering is compremised.

Way back we guys all had skinny tires so we used to install wide mud flaps to creat the ilusion.

CX3 Soul red 2 ltr + window rain guards.
2.5 ltr increase the power to weight ratio , not legal where i reside.
 
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