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Changing tyres question
Waggers
 

Posts: 4
Joined: Jul 2018
Location: SE England
Post: #1
Changing tyres question

Morning all,
Recently had my Evoque serviced at a local garage ( totally trusted and known the owner years), was advised that the Front tyre n/s was wearing on inside and to check the geometry. Thought I may as well get a new tyre and have geometry check at same time, however the fitter at shop said that” Land Rover “ suggests that you change both tyres on front at the same time as it can break the gearbox? Really?
Said to the fitter that it seems stupid to change a perfectly good tyre so thought I’d check on here if anyone had heard of this before? Have been using this tyre shop for years but seems like they may be taking a liberty. Before I change both thought I’d check?

Thanks in advance
Gary
28-02-2019 08:35am
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RogB
 

Posts: 126
Joined: Jul 2016
Location: North Nottinghamshire
Post: #2
RE: Changing tyres question

they are correct. if you put the one new tyre on an axle and the difference between tread levels on that axle are too great then it can play havoc with the AWD geometry and sensors.

its the same for all 4WD cars.

back in the days of the Vauxhall Calibra 4x4 you had to change all 4 tyres at the same time as the system could only tolerate a 1mm difference in tread depth between all 4 corners (IIRC)

2012 Evoque Pure 5 door - Santorini Black, 20'' style 6 wheels, privacy, fogs, (accident damaged wreck direct from LR approved :rollSmile
2011 Evoque Prestige 3 door - Indus Silver, gloss black 19'' style 5 wheels, privacy, partial black pack.

and a few Freelander 2 over the yearsLaughing
28-02-2019 09:35am
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Waggers
 

Posts: 4
Joined: Jul 2018
Location: SE England
Post: #3
RE: Changing tyres question

(28-02-2019 09:35am)RogB Wrote:  they are correct. if you put the one new tyre on an axle and the difference between tread levels on that axle are too great then it can play havoc with the AWD geometry and sensors.

its the same for all 4WD cars.

back in the days of the Vauxhall Calibra 4x4 you had to change all 4 tyres at the same time as the system could only tolerate a 1mm difference in tread depth between all 4 corners (IIRC)

Thanks for information, will order 2
28-02-2019 03:38pm
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Steve D
 

Posts: 399
Joined: Jul 2015
Location: Essexshire
Post: #4
RE: Changing tyres question

(28-02-2019 08:35am)Waggers Wrote:  Morning all,
Recently had my Evoque serviced at a local garage ( totally trusted and known the owner years), was advised that the Front tyre n/s was wearing on inside and to check the geometry. Thought I may as well get a new tyre and have geometry check at same time, however the fitter at shop said that” Land Rover “ suggests that you change both tyres on front at the same time as it can break the gearbox? Really?
Said to the fitter that it seems stupid to change a perfectly good tyre so thought I’d check on here if anyone had heard of this before? Have been using this tyre shop for years but seems like they may be taking a liberty. Before I change both thought I’d check?

Thanks in advance
Gary

Break the axle my arse! What happens when you fit a space saver tyre on then? That will be waaaay different to the other tyre on the same axle compared to a tyre with new tread and a bald one. Go back and ask the fitter what Landrovers feeling is on their cars going round corners are! Then ask him if he knows what a differential is used for. Better still, ask Land Rover themselves - probably get a different answer as they are not in the business of selling tyres.

Santorini SD4A Dynamic Lux with shadow chromes, ebony leather and privacy glass. Very Happy
28-02-2019 09:04pm
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XFullFatTim
Bat wielding forum enforcer

Posts: 9,236
Joined: Oct 2010
Location: Somewhere between here and there.
Post: #5
RE: Changing tyres question

Volvo XC 70 and 90 you need to change all four tyres at the same too, causes damage to the diff and transmission but check how many mm tread depth difference the Evoque can get away with because I had a front near side 20” Continental on my 1st Evoque replaced after 8000 miles wear and was told by the dealership it was not an issue, however replacing a high mileage well worn tyre with a new one only on one side WOULD damage the system. There is some leeway in the difference between tread depths.
BTW, the space savers used by LR have the same rolling circumference as the normal tyres / wheels it’s only the width that is different, but you are speed and distance limited on a space saver.

Now driving a 2018MY Mini Countryman Cooper S E All4 PHEV, alongside my 1996 Defender
TDi300. I hope to be back in a new Land Rover in late 2019 or early 2020 but am having a short break
To try something different
(This post was last modified: 05-03-2019 09:04pm by XFullFatTim.)
05-03-2019 09:03pm
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wheels
 

Posts: 160
Joined: Jul 2015
Location: Sweden
Post: #6
RE: Changing tyres question

(05-03-2019 09:03pm)XFullFatTim Wrote:  Volvo XC 70 and 90 you need to change all four tyres at the same too, causes damage to the diff and transmission but check how many mm tread depth difference the Evoque can get away with because I had a front near side 20” Continental on my 1st Evoque replaced after 8000 miles wear and was told by the dealership it was not an issue, however replacing a high mileage well worn tyre with a new one only on one side WOULD damage the system. There is some leeway in the difference between tread depths.
BTW, the space savers used by LR have the same rolling circumference as the normal tyres / wheels it’s only the width that is different, but you are speed and distance limited on a space saver.

Do they change the spare tire depending on if you have 18, 19 or 20 inch wheels?
Because it's my understanding it's not the exact same rolling circumference
06-03-2019 01:21am
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Sarcastrix
 

Posts: 496
Joined: Jan 2012
Location: Sweden
Post: #7
RE: Changing tyres question

(06-03-2019 01:21am)wheels Wrote:  Because it's my understanding it's not the exact same rolling circumference

The circumference difference between a 245/45-20 tyre and 225/65-17 tyre is only 0.6%.

With regards to the Evoque space saver, the circumference difference is greater as it's a 155/85-18 which has a circumference difference of 1.1% compared to the 20" and 2.5% compared to 18" but of course you'll be driving slower and only a short distance on the space saver, therefore are less likely to damage the running gear.

Ordered: 25th Jan 2012 - Completed: 8th March 2012

Dynamic Coupe SD4 Auto / Fuji / Pano Roof / Tech Park 2 / Style 6 Alloys / Privacy Glass / Adaptive Xenons / Black H'lining / Cold Climate Pack / Auto-dim Mirror / Aux Heater / Roof Rails / Mud-flaps
06-03-2019 02:25pm
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