Hi Phil. I’ve done just over 16,000 but the original fronts were changed at roughly 4,000, so 12,000ish on these fronts. The original rears are still going strong as MB flatly refused to change them at the same time as the original fronts were changed.

Tyres are are covered under my lease but I understand they were in the region of £325 each. That’s from Kwik Fit, which is the Lex approved tyre supplier. Hope you get a satisfactory conclusion with yours soon.

Some tyre info for digest.
On GLC 250 in Dubai – 20" rims – Dunlop Sport Maxx MO and Pirelli Scorpion Verde run flats.
GLE 43 in Dubai, Pirelli P Zero, MO, 275/45/R21. 107Y
GLC 250 in Melb – 19" rims – Hankook Ventus S1 EVO2, SUV, MO (treadwear 220, traction AA, temp A)
GLC 250 in Townsville – 20" rims – Goodyear Efficiency Grip, run flat 101Y
GLC 250 in Hawaii – 20" rims – Goodyear All Season M&S, MO. run flats – yes it is tropical and only snows on volcano sometimes, never on surrounding isl, but can get very wet.
My GLC delivered with 20" Pirelli Scorpion Verede run flat, 101W
Replaced with Goodyear All Season M&S MO, runflats, 105Y (Treadwear 560, traction A, temp A ) Made in Germany.
MB UK have replaced 20" rim tyres with Vredestein 5 series ( not imported into Oz as yet) version which also seem to work re Juddering.
MB AU have used Continental conti-seal 21" with "star" * on sidewall, denoting designed for BMW and Rolls Royce – working very well on GLC 43 owners on front rims, not sure what happened with rear rims as they are staggered in size and not all tyre manuf have the rear tyre size in their design.

Trial shipment of Goodyear Eagle Sport, RFT, ALL Season, M&S, 255/45R20 fitted to GLC last Sept. 90% improvement immediately coming out of winter into Spring. Summer has been good, about to head into Autumn, real test will be Aussie winter and cold wet mornings with U Turns and right turns around roundabouts.
All Season tyres very difficult to source and my guess is those designs that are working will see extreme shortage with Tyre manuf being unable to supply demand. Volume numbers in MB unique sizing will not assist.
Found same Goodyear’s fitted to GLC43 in Hawaii, new on dealer floor....... Hawaii does not get as cold as Oz or UK, but an be very wet, so I guess our US cousins are getting an allocation when built in Germany.
I have done around 8,000km I think and tread wear down from 7mm to 5mm approx; wear bars kick in at 1.5mm. Rotating around 8,000km.
Tread wear rating is 560 I think, Pirelli Scoprion Verde, summer tyres was 400 tread wear; I got around 42000km from them, allowing for tread depth when I had Goodyear’s fitted. Hopefully the Goodyear’s will last more. In USA these have a 50,000 mile g’tee, we do not have such warranty here in Oz.
Hope this helps – All Season tyres seem to be the reasonable workaround. We do not have the Vredestein tyres our UK cousins have to evaluate, they too seem to be getting good reviews.
I may be able to help have some of these (Vredestein) imported as a pallet load, but need to do far greater research before committing and going into partnership with one or two other GLC owners and the Agent

On another matter, some good news to report.
Dealer logged another report to MB HQ on Coupe tires, staggered rims, 255 and 285 on 20” AMG rims.
Original Michelin Latitude 3 summer, non run flats have been replaced after 14000km, wear rates were acceptable, though I did not measure them before leaving car, I should have to gain a better idea of wear rate – not permitted to keep casings as MB may claim against Michelin ?
Now fitted same tyres as I have been running since last year, the Goodyear Eagle Sport, All Season, RFT, M&S tyres. Now fitted to front and rear.
This should be a solution for other Coupe and GLC 43 owners with staggered 20” rims.
Goodyear’s are scarce, I think MB have imported their own stock pile to meet client demand.
Ride seems ok so far, PSI set at 36, though another Service Tech suggested 40psi ? As new default setting to assist with crabbing. MB also still fine tuning align settings and toe-in I think.
Hope to get new data from alignment machine to see trending figures and default settings.
Hope this helps fellow owners with winter approaching.

Update on Tyre wear. Goodyear Eagle Sport, All weather, M&S, MOE, 255 series on 20” AMG rims.
These replaced my Pirelli Scorpion Verde, Summer tyres, MOE, LASTED approx 35000km, may have got 42,000km before wear bars kicked in.
So measured tyres earlier myself as Dealer did not record Tyre wear on recent service.
Use small Michelin Tyre pressure unit with Tyre depth reader, sells around $25 from AutObarn stores.
Tyres when new – 8.0 to 7.9mm
Four Tyre channels to read, tyres have an outer side for fitting, inside channel seems to be 7.7 deep. Outside leading edge depth around 6.7mm.
My tyres on GLC, Fitted Sept 17.
Travelled approx 8000km
Wear is approx.
Tyres just rotated front to rear, so readings are rears in reality for fronts now, etc.
Front driver – edge 6.2, across 4 channels, 7.4 and 7.3mm
Front pass – edge 6.3, across, 7.3 and 7.2mm
Rear Drv side – edge 5.9, across, 7.1 and 7.2mm
Rear pass – edge 6.1, across, 7.0 and 7.1mm

When New tyres are :
Edge 6.7mm and across between 8.0mm and 7.9mm

So allowing for start 8.00 mm and average now after 8000km, with depth say 7.2mm and allowing end safe depth of 1.5mm, we have 6.5mm to effectively use.
I have used 0.8mm for 8000km.
To keep it simple, not allowing for any Tyre mixture wear pattern in manuf layering and running at 36psi, let’s say 1.0mm for 8000km. Therfore I think I could possibly achieve 52000km, if rotated @ 10,000km and aligned on rotation.
So I expect a range of 50,000 to 60,000km from these All Season, Run Flat, MOE tyres.
Most of my driving recently has been 35km in morning and 35km in afternoon, city and freeway driving ranging from 40 to 80kph. Couple of country runs of 250km each way, day and night driving in Spring and Summer conditions, couple in heavy rain, majority of driving on dry roads, not a lot of rain this year.
So Treadwear rating of 560 for Goodyear’s seems reasonable (Pirelli treadwear rating is 400).
Hope this helps re considering, All Season, RFT, MOE tyres as an alternative

I have the issue on a brand new C43 and it goes in for a " fix" with quote " different compound tyres". I fail to understand how changing tyres will fix anything only "mask" the problem. All happening next week so let you know. Funny thing is dealers know of the fault and are still selling these cars with it. Still what can you expect only paying 100k plus for a car?

Hey @phil I thought there was a fix in this thread but I can’t see anything.

Mine is still bad as ever, and not only on the tyre front falling appear also now has the air suspension, parking sensors, air bag and steering column faults.

Trying to figure out what we will go for as i have enough, especially with the lack of customer service from Mercedes. A shame as at one point I was thinking of going back for another GLS. But yet again they are up to their old tricks of blaming my driving. Idiots.

New Tyre in the mix.
From UK MB forum, FYI...
Judder and tyre change
When my 2016 GLC 250d went in for the steering recall, I was asked about the juddering they noticed when they had the steering on full lock on wet ground after they had washed it. I had assumed it was a foible of the car.
I was told it WAS a fault and there is a fix for it. I was also told that I had to make a complaint to have the fix, and that my car was able to have the fix at no charge. The criteria were, the car had to be under 2 years old, and under 19,000 miles.
The fix was to replace the original tyres with Michellin Crossclimate SUV tyres (total value £1100).
I complained and the tyres were replaced.
The treads are very different - different enough for the guy at the gas station to comment on them.

Interesting info, unsure of rim size in this example.

“ Some interesting comments re test of GLC 63.

Ride comfort is decent for a performance SUV, but even in Comfort mode you will feel every bump, crack and expansion joint in the road. That's likely due in part to this tester's optional 21-inch wheels, which look fantastic but wear tires with relatively skinny sidewalls.

In tight, low-speed turns (think getting out of a narrow parking space) you'll also feel some hopping as that rear differential binds a bit; it's a habit familiar in quite a lot of high-performance vehicles.”

So we now see a reviewer suggesting it is a ‘characteristic’ - how quaint and convenient.......

https://www.cnet.com/roadshow/review...38403791806709

Link to full article.

Comment lodged on our cousins GLC site in UK...

Initially AMG customer services offered me a set of winter tyres, I refused these at it would have meant that the tyres would have to be changed 6 times during my ownership and I feared the wheels would be damaged. They refused to budge on this and I went to the ombudsman.

This is the letter I received from the ombudsman albeit after 5 months, if you need any further info let me know.
I will have a set of 20 inch AMG wheels with winter tyres for sale in March 2020 as I can't see me getting another GLC unless they solve the issue, shame in that it is a great car apart from this.

Our process of Early resolution
In regards to your complaint, we refer your contentions over to the business with the evidence you intend to rely on.

The business will then be given an opportunity to respond to that case file upon which we will offer our opinion as to whether we consider this to be a reasonable outcome or if the matter requires formal adjudication.
The business' response
Initially I would like to highlight some information to better explain the customer’s concerns.
As indicated in the internal letter sent to Retailers, the tyre skipping concern has been investigated by our technical specialists as well as independent experts such as DEKRA who concur that the cars remain completely safe to drive. The concern is more pronounced in cold weather and when larger wheels and low profile tyres are fitted. This is due to the flexibility of the tyre sidewall.
Mercedes-Benz Cars UK have looked to assist customers wherever possible to alleviate this comfort issue as a gesture of goodwill. In order to do this, tyres must be sourced that not only have the required flexibility in cold weather but also meet with Daimler AG approval.

Depending on the wheel and tyre size combination this is not always possible. Tyre characteristics and availability are something that are outside of our control. The All Season tyres mentioned in the internal letter sent in February were subsequently deemed to be unsuitable for the Mercedes-AMG GLC 43 and so alternative options must be considered.

The customer has been offered 19” winter tyres or a 50% contribution towards 21” wheels with summer tyres. I understand the customer has declined both of these options.

We are now able to offer the customer a further option of having 20” wheels with winter tyres installed. This will mean the tyres do not need to be removed from the wheels when changing from summer to winter tyres and so alleviating the customer concern of possible wheel damage.

Whilst I would be happy to make arrangements with Mercedes-Benz of Poole for these wheels and tyres to be installed at no cost to the customer, we would not look to cover additional charges incurred during future swapping of these wheels or the storage of the removed wheels.

Outcome of Early resolution
In review of the submissions of both parties, I would note it is asked of me to consider whether there is reason to escalate the matter to adjudication, or if the outcome offered is to my mind reasonable.

I must note that the manufacturer is only liable under our code of practice for certain provisions that concern their advertising information, their customer care, the warranty provisions etc.

As such I need to consider whether this is a rejection issue, for which the consumer should be contacting his retailer, or as the business asserts a comfort issue which can be alleviated by provision of changing the wheels.

I can see that if these wheels are fitted to the vehicle, this may alleviate the issue which would therefore not be a defect of the vehicle as prescribed by the law, and so would be suitably remedied by the offer made.

As such I would support this as a way to remedy the issue at current, and suitably meet their liability under the new car code.

Next steps

Having considered your complaint, I don't think I have enough evidence to uphold it in full. However, the accredited business has offered to change the wheels to a suitable remedy as a gesture of goodwill.

After considering all of the evidence, I think this is a fair way to resolve your complaint and would therefore encourage you to accept this

If you disagree with the gesture offered, please let me know your reasons why - within 10 working days - and I will see if it changes my mind.
Kind regards,



Charles Woodgate AffIMI

Adjudicator
The Motor Ombudsman Limited