Tyre kit inflator + sealant

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raulsbd

New Member
Joined
May 5, 2023
Messages
15
Location
Glossop UK
Car
220d C Class
Hi everyone,

Recently got a C 220d MY 2020 AMG, its got 19'' Run Flat Tyres

The car did not came with tyre tools kit (jack etc) either with the tyrefit kit (compressor + sealant)

I was about to buy the genuine mercedes tyrefit kit and sealant from Ebay at around £35

My question is will it do the same one of the tyre sealant cans they sell in Amazon? or is it more worthy to by one of the tyre puncture repair strips? as i know some garages dont want to do nothing with tyres with sealant inside.

My 2nd question is when it comes to change the tyres.... Im on the original ones and show all of them are MOE and run flat - Does the replacement need to be MOE also and runflats? if not what kind of tyres you recommend for the 19'' wheels with a good rim protection?

Many THanks
 

The MOE marking on the sidewall of a tyre stands for MERCEDES-BENZ ORIGINAL EXTENDED.

Mercedes has asked manufacturers to develop special tyres that allow flat running, without compromising on comfort. It's true that run-flat tyres are less comfortable than conventional tyres.

The only difference between a run-flat tyre and MOE is the ability to run flat with a loaded vehicle.

The ISO standard for obtaining the 'run-flat' certification requires tyres to be able to drive at 50 mph for 50 miles regardless of the vehicle's load. MOE tyres can travel 50 miles at 50 mph with a light load, and only 20 miles with a heavy load. As a result, MOE tyres aren't eligible for ISO run-flat certification.
 

The MOE marking on the sidewall of a tyre stands for MERCEDES-BENZ ORIGINAL EXTENDED.

Mercedes has asked manufacturers to develop special tyres that allow flat running, without compromising on comfort. It's true that run-flat tyres are less comfortable than conventional tyres.

The only difference between a run-flat tyre and MOE is the ability to run flat with a loaded vehicle.

The ISO standard for obtaining the 'run-flat' certification requires tyres to be able to drive at 50 mph for 50 miles regardless of the vehicle's load. MOE tyres can travel 50 miles at 50 mph with a light load, and only 20 miles with a heavy load. As a result, MOE tyres aren't eligible for ISO run-flat certification.
Meaning then I can put non moe tyres to my c class? Just run flats? What brands will you recommend at not an extortionate price? Soon will need to change the 4 of them.

Also will need some winters as I live high up on the Peak District.. will them make a difference on my RWD they did on my previos Audi FWD..

Many thanks your explanation was spot on ;)
 
MOE - Mercedes-approved runflats
MO - Mercedes-approved non-runflats

Yes, you can use non-MOE tyres.

You can also choose to replace the runflats with not run-flats, here, again, the tyre can be MO, or non-MO.

The non-runflats will offer a softer ride, and punctures can be repaired on non-flats more readily than on run-flats.
 
MOE - Mercedes-approved runflats
MO - Mercedes-approved non-runflats

Yes, you can use non-MOE tyres.

You can also choose to replace the runflats with not run-flats, here, again, the tyre can be MO, or non-MO.

The non-runflats will offer a softer ride, and punctures can be repaired on non-flats more readily than on run-flats.
Ok so basically I can fit any tyre as far is the right size isn’t?
Thanks
 
Hi everyone,

Recently got a C 220d MY 2020 AMG, its got 19'' Run Flat Tyres

The car did not came with tyre tools kit (jack etc) either with the tyrefit kit (compressor + sealant)

I was about to buy the genuine mercedes tyrefit kit and sealant from Ebay at around £35

My question is will it do the same one of the tyre sealant cans they sell in Amazon? or is it more worthy to by one of the tyre puncture repair strips? as i know some garages dont want to do nothing with tyres with sealant inside.

My 2nd question is when it comes to change the tyres.... Im on the original ones and show all of them are MOE and run flat - Does the replacement need to be MOE also and runflats? if not what kind of tyres you recommend for the 19'' wheels with a good rim protection?

Many THanks
Why do you need a tyrefit kit with run flats?
 
Is it not what supposed to come the car with?

I can do with one of the cans from Amazon?

The original MB TYREFIT kit comes with a tyre inflator (12v air compressor) and a can of goo (tyre sealant).

The inflator is actually more important than the can of goo, and may get you out of trouble even without the goo. The aerosol spray cans from Amazon won't do that - they won't inflate a flat tyre (ask me how I know...).

But you can of course just buy a Ring or Michelin tyre inflator and keep it in the boot - I keep a tyre inflator in all my cars.

If, however, you still want the MB TIREFIT kit, then be aware that the can of goo has an expiry date (from memory, around 6 years), which is why it's better to get the can itself new rather than off eBay.
 
Ok so basically I can fit any tyre as far is the right size isn’t?
Thanks

Correct. And, ideally, all four tyres will be of the same make and model, and similar wear.
 
Correct. And, ideally, all four tyres will be of the same make and model, and similar wear.
Planning on replacing all 4 brand new.. same brand..

Then get some 2nd hand winters perhaps with a great threat ..
 
The goo acts as a temporary repair on non-run flats. Runflats, well they run flat!
Sorry not very clued about this but yeah run flat ‘should’ do the job without the need of any kits.. BUT feels weird having a car with no tyre kit haha Jack.. compressor etc..
 
The issue with run-flats is that when the tyre has no air, the rigid sidewall takes the load, and in doing so it gets damaged to the extend that the tyre should not be reused even if the puncture itself is fixable. Having a tyre inflator in the car means that in some situations you may be able to simply inflate the punctured tyre and drive on till you get to somewhere where the tyre can be repaired, and save yourself the cost of a new tyre - e.g., if there's a nail in the tyre and you come back to the car after it was parked for a while and find that the tyre is flat - in this situation you could save the tyre if you reinflate it and then drive straight to the tyre fitter to have the puncture repaire, instead of driving on the deflated run-flat tyre thus rendering it irreparable.
 
The issue with run-flats is that when the tyre has no air, the rigid sidewall takes the load, and in doing so it gets damaged to the extend that the tyre should not be reused even if the puncture itself is fixable. Having a tyre inflator in the car means that in some situations you may be able to simply inflate the punctured tyre and drive on till you get to somewhere where the tyre can be repaired, and save yourself the cost of a new tyre - e.g., if there's a nail in the tyre and you come back to the car after it was parked for a while and find that the tyre is flat - in this situation you could save the tyre if you reinflate it and then drive straight to the tyre fitter to have the puncture repaire, instead of driving on the deflated run-flat tyre thus rendering it irreparable.
Makes total sense!! And i love your avatar of Don Quijote!! La Mancha!
Thats what i will do then keep the inflator in the car and get rid of any repair kit.. sealant etc..

On my second question tyres dont need to be MOE or MO then or run flats.. as far they are the right size.. isn’t?

Also winter tyres.. do they make any difference on RWD? I will need them coming winter, leaving on a step hill here in the Peak District :)
 
...Also winter tyres.. do they make any difference on RWD? I will need them coming winter, leaving on a step hill here in the Peak District :)

A heavy RWD car will always be disadvantaged when driving in the snow and ice (and mud and deep sand etc) compared to a lightweight FWD or AWD car.

But - the single most important thing for winter driving in ice and snow is the tyres. An RWD car with winter tyres is a better proportion than a FWD car (or even AWD) with summer tyres.

So yes, with good winter tyres, and obviously driving style adapted for winter driving, your RWD car should be fine in icey or snowy conditions, even if it will (obviously) not be as capable as an AWD car with same proper winter tyres.
 
The original MB TYREFIT kit comes with a tyre inflator (12v air compressor) and a can of goo (tyre sealant).

The inflator is actually more important than the can of goo, and may get you out of trouble even without the goo. The aerosol spray cans from Amazon won't do that - they won't inflate a flat tyre (ask me how I know...).

But you can of course just buy a Ring or Michelin tyre inflator and keep it in the boot - I keep a tyre inflator in all my cars.

If, however, you still want the MB TIREFIT kit, then be aware that the can of goo has an expiry date (from memory, around 6 years), which is why it's better to get the can itself new rather than off eBay.
I have a ring inflator from screwfix - a RAC820, from memory. It has a digital readout psi/bar/kpa. It has worked well and is more strongly built than the cheapies. I am not really a fan of bottles of gunk and have a full size spare and a nice big spanner in the boot on very long holidays/trips.
 
Just to add, unless I missed it earlier, when you say 'as long as tyres are the correct size', they also need to be of the correct speed and load ratings. You can go higher for both, but shouldn't go lower, although winters are sometimes acceptable with a lower speed rating. Higher load-rated tyres will usually result in a firmer ride as the tyrewalls are stronger.
I'm not sure about your model, but with some MB models you can set a lower-than-standard speed limit via the on-board 'computer' if you fit lower-rated winter tyres.
 
Also will need some winters as I live high up on the Peak District
I've got 4 genuine Mercedes 5-spoke 18-inch rims as new with Pirelli winters for sale. Had them as spares for mw W205
img20230427_13054820.jpg
 
On a different note - car has now its original tyres Pirelli RF - Rear ones will need changing soon - will it be possible to change them to non run flats and still front ones as a RF until i need to replace?
 
I have exactly that, and have had that set up for some time. Not ideal, but ok.
 

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