Hi Teckno,

My experience is different. I have switched to summer non run flat tyres and the judder is gone, even in car parks on some of our colder days in Sydney.

I don't feel an all season tyre is a great fit in Sydney given the weather. I understand though, that the particular Run Flat tyres you have might be an improvement for judder while retaining a run flat tyre, but I wouldn't be happy with them performance wise in our hot climate.

cheers.

 

 

Having said that all seasons may not be a great fit in Sydney, I also think that a modern SUV with all the current technology wouldn't suffer too much by using an all season tyre.

I have always come from performance orientated cars so extra grip and control are what I seek, even in an SUV.

On a side note, I have been driving an near new A200 (with some kind of AMG package) as a service vehicle while I am getting a warranty fix on my clicking air conditioning. The bizarre thing is it handles speed bumps better than the GLC! I can approach them quickly without fear of the suspension bottoming out!

It has Dunlop MOE run flats, which, as expected are a bit harsh and noisy but they corner quite well and have no judder of course.

 

 

Will do. Sounds exactly the same and it was easy to replicate by changing the fan distribution settings manually.

They are in the process of taking the dash out and am waiting to hear back. They have had it for 3 days so far.

I was concerned as back in my Alfa 164 days this was a symptom of faulty stepper motor gears and a very difficult fix because of the location. Very very expensive if you are paying for labour!

 

BTW this was evident before my 2 year service. So nothing to do with a filter change.

 

 

these wheels arrived today, 8.5 front and 9.5 rear...as 19 inch can be standard fitment, i have no doubt they "fit". The USA Rims place confirmed a good fit.

So next is Run Flat or Non Run Flat with goop and air pump and jack (may have a jack in the GLC 43 but havent looked!!

Looking at Run flat Latitude 3 Michelin. Michelins in my experience have always had a more comfortable ride (compared to Conti's, Bridgestone, Pirelli, Goodyear)

 

 

 

Hi Teckno,

They first carried out a service bulletin that applied lubrication to a shaft, but that didn't work. In the end they removed the dash and replaced some air ducting and that fixed it.

I would hate to be paying for this. If you can replicate the problem by changing the vent directions then they should be able to track it down. I was lucky to have a very fussy technician.

They also did the steering wheel vibration fix but i will need to take this for a long drive to confirm it is fixed.

cheers.

 

 

 

Had my front tyres changed over to ContiSeal ( star ). Crabbing has vanished completely. Noted that they put 41psi in each, which seems a tad on the high side. They may wear better at this higher pressure.. Max pressure as indicated on the side wall of the tyre is 51psi.

 

In my my experience tyres are always over inflated by the fitters.

I was running 38 psi on the rears for a while and they actually wore quicker than the fronts. The wear was consistent with over inflation.

I think from my experience and others I read, that 36psi all round is the sweet spot.

 

I might take them down a few psi based on that!.. Thanks Redrover

 

 

 

 

19 inch with 285 but 45 profile, et 35, so not close to the et 22 on the original rim

front 255 19 inch after market with 50 series Michelin latitude sport 3 front, non run flat. the et is 35 so 5 mm out in scrub, but looks really well fit

original 21 inch on the right and the aftermarket installed..The wheel is ingoard by 13 mm so i will likely get a 12 or 13 mm spacer to get that proper filled out look

 

Hi team GLC particularly those in Australia. As previously mentioned the fitment from MB of STAR brand continental conti sport 5 COMPLETLY CURED THE CRAB, replaced gratis after i complained the originals were not fit for purpose, at 7500 km. But even after 3000 km the outer tread was wearing, and i doubt they would last 10000km in total. And i am not an aggressive driver and they were well inflated.
The 43 AMG ride is harsh with poor absorption of road irregularities. A sprited drive is fun, but the suburban drive to the office is WORSE THAN THE FAMILY GOLF 103 TSI from 2013!!!!! The road noise on coarse chip bitumin on the Hume was 92-93 decibels, and not really "fulfilling my dreams". iphone decibel meter app held at level of centre vents.
So last trip to the USA in July (AFTER digesting thoughts on this forum...thanks to all+++) thought i would try my own remedy.
Hollister after market rims from rims USA in san diego, thanks Frank Blue, shipped 19 8.5 et 35 and 19 by 9.5 et 35, to our hotel in the US, double boxed, and i brought them back via Qantas (1 wheel per family member!!). total 1000 AUS, about 650 US (plus airfares!!!!!!).
Next which tyre?? Chose Michelin latitude sport 3. JAX Caulfield sourced them and fitted. 255 50 19 front and 285 45 19 rear. About 1700 AUS The offset on the back is noticeable and tight (they sit inboard by 13 mm), so wasnt going to try chains up at Buller, so still need spacers (yet to be done). Bought OEM TPMS for each wheel at MB Brighton...quoted 250 each but asked fro satandard 30 % discount and got it.
Now, i have 4 runflat spares in the garage, and 4 wheels tires and TPMS, for 3400 AUS
Result...will post with my crtique about the ride, but enjoy the pictures i uploaded...what do you all think?

 

Having done essentially the same thing 18 months ago I think you've done good. I was only coming from 20" to 19" and the improvement in handling and ride quality was dramatic. I imagine that it would be even more so from 21". I'm surprised you couldn't source rims locally, although the selection would be more limited. I paid about the same as you for rims. The advantage of the wheels you brought back from the US is that they're a good visual match for the originals, whereas mine gave me a different look. Which I don't mind.

I was going to use one of the 20" run-flats for a spare, which would be fine for short distance and way better than an emergency spare, but I was less sure about driving for an extended period with such a mis-match. So I sourced a fifth wheel. Still a good deal.

As for John Cadogan, does he have any influence? Does anyone who matters take any notice? His shock-jock style is just shameless self-promotion for the services he sells, isn't it? Many (but not all) of his diatribes have some truth, but what is he trying to achieve?

 

Thx BIPS...can u post a picture of your wheels? I couldnt find a visual match here in Oz