2018 CX-5 GT Ticking

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg
Contributor
:
Plano, Texas, USA
I agree. Absolute BS
And like I suspected earlier, this’s another inherited problem from cylinder deactivation. The tapping noise most likely is from switchable hydraulic lash adjusters (HLA) which are only on cylinder #1 and #4 for cylinder deactivation. And based on the Service Alert and TSB, this tapping noise problem is only from 2.5 L with cylinder deactivation on 2018 and newer CX-5’s.

60FF5547-C143-4E6C-BC8B-D431025172F1.jpeg
 
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2018 CX5 Mach Grey
This is the response i got regarding the HLA replacement. Ill hope they take my concern seriously although I’m expecting getting the runaround on this given their response. Typical piss poor service in Canada. I have no problem hounding them until this gets fixed however. Why they didn’t reveal that TSB to me in January when they showed me the air bubble tsb is beyond me

“ We believe the information you provided is for an American Service Alert. Canada, has recently released a similar Technical Service Bulletin as the one you've provided, but ours has a different procedure to be followed and requires us to involve our Mazda Canada Technical Support Team.

We can certainly take another look at the vehicle for you, but I will require you to leave the vehicle with us for at least the day. There are a couple reasons for this; the technician was actually unable to duplicate your concerns last visit and we need to contact our Technical Support Team, which means this appointment requires a more complex diagnostic procedure. “
 
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2018 CX5 Mach Grey
So, just to update and especially for Canadian owners, I just received results and
after conversations my dealer had with Mazda Canada, they will replace the hydraulic lash adjusters on my vehicle. It took being abe to leave the cx5 overnight at the dealership when the temps went down to below -10C. They were then able to duplicate the noise I have been dealing with and agree its not injectors, air in the HLA's etc. Canadian dealerships dont appear to be aware of the Service Alert No.: SA-012/19. In fairness this alert is US based and kudos to my dealership for speaking with Mazda Canada to get direction on this.

Parts are coming from the USA which again leads me to believe it hasnt been as prominent a problem in Canada. Main thing is to be persistent if you have this noise occurring until it gets resolved.
 

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg
Contributor
:
Plano, Texas, USA
So, just to update and especially for Canadian owners, I just received results and
after conversations my dealer had with Mazda Canada, they will replace the hydraulic lash adjusters on my vehicle. It took being abe to leave the cx5 overnight at the dealership when the temps went down to below -10C. They were then able to duplicate the noise I have been dealing with and agree its not injectors, air in the HLA's etc. Canadian dealerships dont appear to be aware of the Service Alert No.: SA-012/19. In fairness this alert is US based and kudos to my dealership for speaking with Mazda Canada to get direction on this.

Parts are coming from the USA which again leads me to believe it hasnt been as prominent a problem in Canada. Main thing is to be persistent if you have this noise occurring until it gets resolved.
Mazda and Mazda Canada fully aware this ticking noise problem. The Service Alert, although the one we have seen is from Mazda North American Operations, is coming directly from Mazda Japan headquarter after their engineers studied the problem. I bet Mazda has improved or revised those switchable HLAs to prevent the ticking noise when cold, and could carry different part numbers on newer HLAs indicating these are revised version.

Anyway, it’s your persistence and now the reward getting your problem fixed. Unfortunately some people feel this ticking noise is normal, and not interested to get the problem fixed.
 
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2018 CX5 Mach Grey
I’m an older fella (56) who grew up with lifter and rod engines. Any ticking noise in my book has always been a bad thing. I can’t fault the dealership in fact I have nothing but high praise for them. I don’t think a lot of people are reporting this as it’s only during colder weather and disappears when temps hit Zero C and above. I was fortunate that we have this cold snap. Soon as they were able to repeat the issue they went right after fixing it I think consumers need to educate themselves more on vehicle maintenance however I’m also in a rarer group. We don’t lease or buy cars short term. We still have our 2010 Mazda 6 and this cx5 will be with us for 10 plus years as well so i indefinitely want to report and issues while under warranty.
 

sm1ke

Work In Progress..
Moderator
Contributor
:
Canada
:
'18 CX-9 Signature
Is it just an annoying noise? Or is this something that can cause damage over time if it isn't addressed?
 
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2018 CX5 Mach Grey
Is it just an annoying noise? Or is this something that can cause damage over time if it isn't addressed?
It needs fixed. It’s a hydraulic lifter that opens and closes the cylinder valves and during cold weather allowable space tolerance between the two pieces of metal becomes to large and the noise is the metal surfaces hitting each other. Most ticking/ metal on metal sounds from engines should never to be treated as just annoying and need checked out . Diesel engines have always had a knocking sound from their design using injectors and pressurized fuel systems however gasoline engines for the most part should run quiet especially in their early lifespan
 

sm1ke

Work In Progress..
Moderator
Contributor
:
Canada
:
'18 CX-9 Signature
What can happen if this issue isn't fixed? Any telltale signs that the issue has progressed further than noise in cold weather?

I'm just asking questions so that I and others can learn and understand what is normal and what is not, and what ignoring the problem can lead to. My CX-9 doesn't have the issue as far as I can tell, but I have noticed that my brother-in-law's company cars (2018 Nissan Murano, 2019 Infiniti QX60, 2020 Nissan Pathfinder) have all had loud, ticking engines.
 
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2018 CX5 Mach Grey
absolutely. Always ask questions. It’s best to make sure you prepare yourself in Case you need to deal with these issues. In this case the noise is produced as there is too much of space between two metal surfaces that continuously hit each other Best analogy I can give you is think about using a hammer on the nail if you lift the hammer 1 mm away from the nail and tap it The force placed on in the nail is very minimal now pull the hammer 2 inches away from the nail and hit it and you see different results the problem with too much space is it allows the metal to hit with more impact on each other and overtime can cause damage to both surfaces if that makes sense the noise is increased during colder weather as metal shrinks or contracts. the noise will go away once the engine warms up or in warmer temperatures as metal expands however overtime the more the engine is subjected to colder weather and that ticking noise happens the gap will increase between the two metal surfaces as eventually need repaired
 

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg
Contributor
:
Plano, Texas, USA
absolutely. Always ask questions. It’s best to make sure you prepare yourself in Case you need to deal with these issues. In this case the noise is produced as there is too much of space between two metal surfaces that continuously hit each other Best analogy I can give you is think about using a hammer on the nail if you lift the hammer 1 mm away from the nail and tap it The force placed on in the nail is very minimal now pull the hammer 2 inches away from the nail and hit it and you see different results the problem with too much space is it allows the metal to hit with more impact on each other and overtime can cause damage to both surfaces if that makes sense the noise is increased during colder weather as metal shrinks or contracts. the noise will go away once the engine warms up or in warmer temperatures as metal expands however overtime the more the engine is subjected to colder weather and that ticking noise happens the gap will increase between the two metal surfaces as eventually need repaired
I also might add with bigger valve clearance the engine is not only generating the ticking noise, but also becoming less efficient (less MPG) due to valve opening is smaller than designed.

Also the switchable hydraulic lash adjusters (HLA) installed on cylinder #1 and #4 are new parts for cylinder deactivation. I’d say this’s another CD related problem like the falling rocker arms.
 

I have a 2018 CX-5 GT with 16,000km on it. I change the oil every 5,000km with Castrol 0W20 and an OEM filter. Last oil change was about 2 months ago. Just started noticing the ticking noise (in the YouTube video) about 2 days ago. I checked the oil level and it looks fine. I had the car in for the recall update in the summer. The only thing that is really different is the weather has been colder here in Toronto the past couple of days. Anyone know what this ticking sound is?
Nothing to do with the oil you are using, This is a Mazda issue, My 2018 did the same thing. The Mazda tech had several reasons why it could possibly be my fault. None of which hold water!
 
I assume the engine was fully warmed up when you recorded the video. The ticking noise is from valve clearance and it should be very minimum with hydraulic lifter or hydraulic lash adjuster. Oil quality would be my first guess which causes this ticking noise. Where did you make your last oil change? Are you sure you got good Castrol 0W-20 oil? If youre really concerned, you can change the oil (preferably at a Mazda dealer) and see if the noise would be gone. If not, bring it up to your Mazda dealer and complain.

Was the recall youve done for cylinder deactivation?
2018 does not have cyl deactivation. Mazda will do nothing unless the engine tanks completely or does it on a daily basis. Then they will try to blame the owner for not changing the oil in a Mazda service center.
 
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2018 CX5 Mach Grey
The HLA’s appear to be having issues. I think you will see a trend of more replacements happening regarding the service bulletin being circulated.
 
The 2018 does have cylinder deactivation but I don't think that ticking noise is from CD.
I thought in Canada 2019 was the year for CD, regardless I got feed up with the run around and non belief that the condition existed, even with videos! I traded it in for a CX5 2.5T, so lets see how this one performs.