Tyre wear

[Rayjack2710]

My low profile tyres on my merc CLA are wearing badly on the outside edges only. What could be the reason for this?

 

[JBell]

Tracking is out, you need Hunter 4 wheel alignment.

Could be camber or the wheels are toe'd out

MB do have a tendancy to wear the outsides as well die to the way they turn their wheels, as the tyres wear the outside edged wear very quickly

 

[Blobcat]

Going hard into the bends on the brakes can also acerbate the wear

 

[sonic]

If you have the same size tyres all around swap them front to rear.
you won’t wear an edge on the rears.

 

[LostKiwi]

Tracking is out, you need Hunter 4 wheel alignment.

Could be camber or the wheels are toe'd out

MB do have a tendancy to wear the outsides as well die to the way they turn their wheels, as the tyres wear the outside edged wear very quickly

Too much toe in if it's wearing outside edges, toe out if it's wearing inside edges. That's been my experience at least.

 

[Rob7seven]

Tyres are not what they used to be. I may be wrong, but I thought that new ones had about 8mm of tread. My B Class wert back to the Dealer a couple of weeks ago for a tyre replacement, picked up a puncture in its second week on the road, about 300 miles recorded. I got the standard MB underneath video that reported tyre and brake wear etc, NONE not surprisingly, and all four tyres had 6mm tread, which doesn't seem like very much when we're advised to replace them at 3 to 4mm.

Interestingly, a puncture is an expensive business these days. I needed a new tyre at £175, a new can of sealant as I'd had to use the original one to get me home £65, and Sandown told me that I should also buy a new compressor at £212, as pumping the sealant can gum them up enough to make them unusable, anyone else experienced this? That's about £450 for one flat tyre.

 

[JBell]

Too much toe in if it's wearing outside edges, toe out if it's wearing inside edges. That's been my experience at least.

I always get it the wrong way round

 

[JBell]

Interestingly, a puncture is an expensive business these days. I needed a new tyre at £175, a new can of sealant as I'd had to use the original one to get me home £65, and Sandown told me that I should also buy a new compressor at £212, as pumping the sealant can gum them up enough to make them unusable, anyone else experienced this? That's about £450 for one flat tyre.

Never buy tyres from a dealer, get the sealent that works straight from the can, think they are trying to bend you over

 

[DSK]

Tyres are not what they used to be. I may be wrong, but I thought that new ones had about 8mm of tread. My B Class wert back to the Dealer a couple of weeks ago for a tyre replacement, picked up a puncture in its second week on the road, about 300 miles recorded. I got the standard MB underneath video that reported tyre and brake wear etc, NONE not surprisingly, and all four tyres had 6mm tread, which doesn't seem like very much when we're advised to replace them at 3 to 4mm.

Interestingly, a puncture is an expensive business these days. I needed a new tyre at £175, a new can of sealant as I'd had to use the original one to get me home £65, and Sandown told me that I should also buy a new compressor at £212, as pumping the sealant can gum them up enough to make them unusable, anyone else experienced this? That's about £450 for one flat tyre.

Low profile sporty tyres from experience can usually have up to about 5.x mm at new. I remember putting a set of 285 sections 18” new Michelins Pilot sport years ago on the Supra, I checked their depth as they came off the wholesalers van, 5.2mm. Unless it’s a normal style of tyre, never expect 8mm from UHP wide, low profile and large diameter tyres. Whilst I am still able to get decent mileages out them with a lot of motorway miles, this is also the reason some people complain of them not lasting the distance.

Not heard of an air compressor getting gummed up with sealant or, ever had any customer mention it.


Sent from my iPhone using Tapatalk

 

[Rob7seven]

Not heard of an air compressor getting gummed up with sealant or, ever had any customer mention it.


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Interesting.

For the first time ever with my new B Class, a pleasant but pushy young salesman persuaded me to accept tyre insurance. Punctures are rare, though I did have one repairable one in the tread of a tyre on my previous C300. I know this cover meant commission for the salesman, but we liked the lad, so I let him add it to the total. This covered the new tyre, and Sandown told me they'd handle everything, so no cost to me. On the rest of the cost, they said that the connecting tube could be blocked, and the compressor partly gummed. I tried blowing through the tube, no problem, and the pump ran OK. I used it to add a bit of air to one of the tyres on my wife's Citroên and it worked perfectly, so I took the still packaged new pump back to the Dealer to get a refund. So all the escapade cost me in total was the new can of sealant at about £65, not too bad really, though potentially expensive for some.

 

[LostKiwi]

I use a can of Tyre Weld and puncture repair strips.
To date that's all I've needed.

Amazon.co.uk

Amazon.co.uk

 

[Rob7seven]

I use a can of Tyre Weld and puncture repair strips.
To date that's all I've needed.

Quite a difference in price, my MB £65 one vs £8 from Tesco/Halfords for Tyreweld, but how effective is it for fixing punctures? My tyre damage was in the sidewall, and I'd read and heard so much about these things being next to useless, I was pleasantly surprised when my tyre stayed hard for another 400 miles until I could get it changed. The instructions on mine warned that it should only be regarded as a temporary repair said that speeds should be restricted to 80km or 50mph, what's your opinion?

The good news was that driving at a gentle 80k on Autoroutes, luckily we weren't in any great hurry, my mpg average went up to 55.

 

[AlanGunn]

+1 on the tyre plug kit.
I have one in each car but the one with the metal handle as it's stronger.
Only used one plug in the last 7 years.

 

[fabes]

Down here the AA service when daughter blew a front out on a kerb avoiding an accident, was superb.

Uni space saver fitted and then followed me to tyre shop of my choice (where I had two new Nexens ready, just because it's what dad's do ...)

My lot wouldn't know what to do (apart from cry at me down the phone) so its what I need across the fleet.
A can of gunk or even a spare would gather dust and I suspect that's the same for 90% of those on the road.

 

[LostKiwi]

Quite a difference in price, my MB £65 one vs £8 from Tesco/Halfords for Tyreweld, but how effective is it for fixing punctures? My tyre damage was in the sidewall, and I'd read and heard so much about these things being next to useless, I was pleasantly surprised when my tyre stayed hard for another 400 miles until I could get it changed. The instructions on mine warned that it should only be regarded as a temporary repair said that speeds should be restricted to 80km or 50mph, what's your opinion?

The good news was that driving at a gentle 80k on Autoroutes, luckily we weren't in any great hurry, my mpg average went up to 55.

No repair should ever be made in the sidewall as there are only two plies there in most cases.
As for tyreweld and strips we had a rear tyre go flat in the R class not long after fitting two new rears. Some 8 trips to France later it's still holding strong.
Technically any DIY repair is only temporary.

 

[Rob7seven]

No repair should ever be made in the sidewall as there are only two plies there in most cases.
As for tyreweld and strips we had a rear tyre go flat in the R class not long after fitting two new rears. Some 8 trips to France later it's still holding strong.
Technically any DIY repair is only temporary.

You're right on tyre sidewall repairs, and of course I knew that, but my options on a Sunday afternoon in rural France were limited, so I had to give it a try. The damage did look fairly superficial, no plies showing, and maybe there was damage somewhere in the tread, I couldn't see. Anyway, I attached the repair sealant to the pump, the tyre inflated and stayed hard. I knew there was some risk, so I did drive gently, but it got us about 400km, not miles as I posted earlier to the ferry, and no signs of leakage when I took the car to Sandown MB a few days later.

Maybe I was just lucky. I knew I was taking a chance, but I got away with it.