4.2mm tread - garage recommended change!: Motoring Motoring Discussion forum

Motoring Discussion > 4.2mm tread - garage recommended change!	Miscellaneous
Thread Author: zippy	Replies: 19

Wed 19 Mar 25 22:30

4.2mm tread - garage recommended change! - zippy

3 of the 4 tyres on my car were listed as needing attention by the garage when it did the service today (Hyundai main dealer).

One 2.3mm - fair enough and I pointed this out to the service manager when I dropped the car off. I intend to get it changed by a local indi who did my wife a favour last week (fixed her leaking offside front valve for no fee) and I believe in returning the favour.

Second 3.3mm - over double the legal minimum.

Third 4.2mm - almost new.

Oh and they recommended £86 ditch finders to replace the Continentals already there.

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Thu 20 Mar 25 07:01

4.2mm tread - garage recommended change! - Bromptonaut

I had a similar issue with service reminders for new discs/pads on my Fabia. The pads were certainly worn, probably beyond 50%, and the discs were lipped but neither were at a critical level.

I think it came up two years on the bounce and I replaced them on the third.

When I asked why they were so keen I was told that as the service was well over 12k/miles or annually they might not last that long.

I'm old enough to walk around my car regularly and check these things. Neither am I heavy on the brakes.

My son OTOH......

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Thu 20 Mar 25 08:10

4.2mm tread - garage recommended change! - Falkirk Bairn

Same here.

2012 Honda CRV - main dealer used for servicing during warranty - 3 years old they recommended new brake pads on the front and new tyres all round (I had moved tyres around to even the wear)

I refused - roughly 25,000 miles IIRC

12 months later I went back to my Indie for servicing - his remarks were tyres are fine and you will get another 6 months easily.. Wheels off brake clean (air hose/wire brush+ grease (£50+VAT) Pads were fine.

I duly put 4 x new tyres on at around 35K - the brake pads on the front replace at 50k+ IIRC 24+ months after the main dealer saying they need changing.

Car sold 11 years old - Rear brake pads were still originals - benefits of regular wheels off cleaning and light use of brakes!

My "New CRV"

It is now 2 years old - Service Booked with main dealer.
Serviced last month the rear brakes needed fettling £70 extra - I said this to them on booking the appointment.

Unwanted Upselling!! 90 minutes after dropping off the car

They wanted to put petrol additive in the tank £20 - refused - I run the car on premier petrol.

They suggested topping up AC - £125 - refused - topping up AC that blows cold??

They said they would update the SatNav £45 Refused.
I told them that they should have checked before asking - I had done that last October.

Upgrading the Garmin software in the driveway was a PITA - the process was long drawn out affair.

Only supports 8GB memory stick (took 2 days and my local son found one in his "PC old parts shoebox"

Format memory stick - go to car insert memory stick - press series of buttons and memory stick is ID coded.

Back to the PC and update download took around 30 mins (I have FTTP) - Complaints worldwide about Garmin's under resourced update systems

Back to the car - engine running, lots of button pressing and roughly another 2 hours or so the update finished.

I rarely use the SatNav so will give it a pass next release of map software.

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Thu 20 Mar 25 08:26

4.2mm tread - garage recommended change! - Bromptonaut

The new (to us) Superb has a Skoda Satnav but it seems to require me to pay extra.

My needs are simple and met perfectly well with Google Maps via Android Auto.

Daughter has Skoda satnav in her Octavia and regularly curses it for weird routings etc.

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Thu 20 Mar 25 09:24

4.2mm tread - garage recommended change! - Falkirk Bairn

First 3 /4 years Honda/Garmin Updates are not charged.

I would rather pay Garmin for the update if it was a "user friendly" and quick option.
I started at 8.30 ish and SWMBO was planning going out at 10.30 ish - it was after that that it completed - so not quite 3 hours in total.

My old 2012 CRV SatNav was DVD based - swap DVD - system boots - job done.

2023 - 3 hours! That's progress for you.

I assume that Honda Franchises have access that does not require a download for every car. They will have a downloaded copy that works irrespective of serial IDs on the SatNav Unit.

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Thu 20 Mar 25 10:21

4.2mm tread - garage recommended change! - zippy

>>They said they would update the SatNav £45 Refused.

At least Hyundai does that for free!

>>Daughter has Skoda satnav in her Octavia and regularly curses it for weird routings etc.

Mine seems to like tiny narrow country lanes.

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Thu 20 Mar 25 10:38

4.2mm tread - garage recommended change! - Bromptonaut

>> Mine seems to like tiny narrow country lanes.

Google does that too. Not just lanes but tight residential roads too. I was in Stanmore a couple of years ago. I lived there for a while so know my way around. Google sent me around two sides of a block for what ever reason.

It's also tried to send me up what are little more than alleys between terraces in both Liverpool and Northampton.

Need to be a bit wary of it when towing for that reason.

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Thu 20 Mar 25 12:43

4.2mm tread - garage recommended change! - martin aston

My Golf (ironically the Nav model) sometimes sends me all sorts of odd ways. When you ignore the recommended turnoffs the estimated arrival time (ETA) nearly always reduces right away. So it “knows” it’s wrong.
For example we travel down the M5 regularly and it always tries to take us off via Worcester travelling south. However travelling north it doesn’t try this.
All the settings seem correct so it’s just software glitches. I wouldn’t pay to have it updated, I suspect it would still be poor.

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Thu 20 Mar 25 12:19

4.2mm tread - garage recommended change! - Zero

>> The new (to us) Superb has a Skoda Satnav but it seems to require me
>> to pay extra.

BMW wants £75 a year for satnav updates, which it does over the air. Cheekily they put live traffic updates in another different £75 a year package I pay every three years for map updates,. TBF the BMW sat nav is very good, and the woman is very polite, as you would expect from a package fitted to the Rolls Royce.

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Thu 20 Mar 25 12:35

4.2mm tread - garage recommended change! - zippy

>>The woman is very polite...

I know the mark 1 Vauxhall Mokka got a load of stick but I liked the one I drove for about 60k miles, though it did have it's foibles and faults.

One amusing one, which the kids loved and got lots of giggles, was that the satnav would suddenly start giving directions in German and "she" sounded much more bossy than the English "lady".

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Thu 20 Mar 25 18:12

4.2mm tread - garage recommended change! - Kevin

>BMW wants £75 a year for satnav updates,

I installed a lifetime maps FSC code for mine - cost me £60. Whenever there's an update you just need to download it to a USB stick from one of the forums and slot it in the armrest socket to upload.

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Fri 21 Mar 25 10:35

4.2mm tread - garage recommended change! - Bobby

I get my BMW map updates from a guy in America for 40 bucks.

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Thu 20 Mar 25 12:13

4.2mm tread - garage recommended change! - Zero

First thing I would be wondering is, why one is 2.3 and the other 3.3. 4.2 is not "almost new" its half worn, 8mm is the depth on a new tyre.

I change mine at 2mm, not the legal minimum, at 1.6mm. water displacement is severely compromised with the risk of aquaplaning.

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Thu 20 Mar 25 12:19

4.2mm tread - garage recommended change! - Bromptonaut

2.3 and 3.3 wouldn't worry me too much.

One local tyre place suggested such patterns were commonplace in places like (eg) Milton Keynes with multiple roundabouts and weight shift going around them.

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Thu 20 Mar 25 12:28

4.2mm tread - garage recommended change! - zippy

>> First thing I would be wondering is, why one is 2.3 and the other 3.3.
>>

The tyre was changed as it got a nail on the "corner" and wasn't repairable and has therefore done less miles.

>> I change mine at 2mm, not the legal minimum, at 1.6mm
>>

Same.

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Thu 20 Mar 25 14:51

4.2mm tread - garage recommended change! - CGNorwich

“8mm is the depth on a new tyre.”

Of some. The Bridgestone tyres fitted on my car were 5.95mm when new.

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Thu 20 Mar 25 14:58

4.2mm tread - garage recommended change! - Zero

Thats why people dont use them, you were robbed.

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Thu 20 Mar 25 20:12

4.2mm tread - garage recommended change! - Fullchat

I was under the impression that whilst 1.6mm is the legal minimum. 3mm is the minimum for maximum water displacement and potential aquaplaning.

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Thu 20 Mar 25 21:02

4.2mm tread - garage recommended change! - CGNorwich

Michelin state that their tyres are good up "to the last mile" i.e 1.6 mm,and that thier tread pattern will prevent aquaplaning up to the end of the tyres life.

www.michelin.co.uk/auto/advice/change-tyres/how-long-do-tyres-last

I guess they should know

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Thu 20 Mar 25 21:22

4.2mm tread - garage recommended change! - Fullchat

Guess they would and should :)

Interesting claim. You would think that 3mm of tread would store and remove more water than 1.6mm.

Anyway, new tyres back or front? ;0

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