Tire sizes

1986-1995 : 200TD, 200CE, E200, 260E, 300E 2.6, 300E 2.8, 300E, E320, 400E, E420, 500E, E500, 300CE, E320, 230TE, 300TE, 300D 2.5 TURBO, E300 DIESEL, 300TD, 300E 4MATIC, 300TE 4MATIC, E36 AMG
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Don-vic
B Class
Posts: 24
Joined: Sat 25 Jul, 2015 2:00 pm
Model you own: w124
Location: Lakes entrance, Victoria.

Tire sizes

Post by Don-vic » Thu 23 Mar, 2017 8:06 pm

Looking to replace the tires on my 1990 300te as they are 13 years old and for 3 of those years, the vehicle wasn't moved(and the tires almost flat).
Recommended size is 195X65X15 on the original 15 slotted alloys.
I have read in a couple of publications that I can go to the slightly wider 205X65X15 without having either clearance or legal problems.
Has anyone gone this way with a 124 model and are there any issues I need to consider?
1990 300TE

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Ivanerrol
Mercedes Demigod
Posts: 5557
Joined: Sat 12 May, 2007 3:21 pm
Model you own: w204
Location: Melbourne

Re: Tire sizes

Post by Ivanerrol » Thu 23 Mar, 2017 10:33 pm

Here's the tyre placard of my W124
Image

then there's this link - scroll down to W124

http://www.alloywheelsdirect.net/inform ... cedes-benz
W211 - E240
W204 - C280
W202 - C180
W210 - E240
Departed
W202 - C200
W202 - C180 - On consignment to nephew
W126 - 380SE , 380SE (Ex SA Import), 560SEL
W124 - 300e, 260e (ex Japan)
W111 220s (Indonesia) 4 speed manual column shift
W123 230
W116 450SEL
W140 420SEL
W210 E240
W209 CLK 240
W201 190e 2.6 (ex U.K.)

Don-vic
B Class
Posts: 24
Joined: Sat 25 Jul, 2015 2:00 pm
Model you own: w124
Location: Lakes entrance, Victoria.

Re: Tire sizes

Post by Don-vic » Fri 24 Mar, 2017 3:40 pm

Thanks for the reply. Have seen this publication which indicates that 205 size are OK, yet my plate on the car "recommends" 195s. So still confused. Larger tyres are being considered only for appearances as I doubt they would make appreciable difference to handling/braking/grip. Have not yet checked availability or cost of either size. Maybe that will be the decider.
1990 300TE

Djenka018
Ponton
Posts: 234
Joined: Sun 06 Aug, 2006 1:50 am
Model you own: w107
Location: Syd Vicious

Re: Tire sizes

Post by Djenka018 » Fri 24 Mar, 2017 6:53 pm

Ivanerrol wrote:Here's the tyre placard of my W124
Image

then there's this link - scroll down to W124

http://www.alloywheelsdirect.net/inform ... cedes-benz
That's a strange one.

225 is generally too big for 6.5" wide rim, even for 50% profile. (should be no less than 7")
'80 450SLC 3-continental

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Starman
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Joined: Thu 31 Mar, 2011 11:39 am
Model you own: w211
Location: Brisbania

Re: Tire sizes

Post by Starman » Sat 25 Mar, 2017 9:37 am

I always went one size wider on my W202 and never had a problem.
W212 E400 Avantgarde
W211 E500 Elegance sold
W202 C200 "the Tank" sold

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Ivanerrol
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Joined: Sat 12 May, 2007 3:21 pm
Model you own: w204
Location: Melbourne

Re: Tire sizes

Post by Ivanerrol » Sat 25 Mar, 2017 10:59 am

I had 225x55/16's on W211 wheels on my W124 - no problem.

Also had the same combination on the W202 although now I've pulled them back to 205x55/16.

Caveat is that the suspension must be in good condition.

Here's my W124 with 18 inch wheels - AMG knockoffs with 215x45/18
They fitted fine however the car drove and felt like a go kart.

Image
W211 - E240
W204 - C280
W202 - C180
W210 - E240
Departed
W202 - C200
W202 - C180 - On consignment to nephew
W126 - 380SE , 380SE (Ex SA Import), 560SEL
W124 - 300e, 260e (ex Japan)
W111 220s (Indonesia) 4 speed manual column shift
W123 230
W116 450SEL
W140 420SEL
W210 E240
W209 CLK 240
W201 190e 2.6 (ex U.K.)

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benzy53
S Class
Posts: 86
Joined: Sun 22 Dec, 2013 7:21 am
Model you own: w124
Location: Melbourne

Re: Tire sizes

Post by benzy53 » Mon 27 Mar, 2017 8:06 am

Hi Don
I have on my 300TE 205/55/16 and no problems and no change in speed reading. The car came with 215 whe I bought it and it
was very close to the front shockers and you could see some rubbing marks. The ET has of course a big influenze.
Regards benzy53

Don-vic
B Class
Posts: 24
Joined: Sat 25 Jul, 2015 2:00 pm
Model you own: w124
Location: Lakes entrance, Victoria.

Re: Tire sizes

Post by Don-vic » Mon 27 Mar, 2017 3:00 pm

Sorry Thomas, you know I'm a bit slow. But what is "the ET" ?
1990 300TE

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benzy53
S Class
Posts: 86
Joined: Sun 22 Dec, 2013 7:21 am
Model you own: w124
Location: Melbourne

Re: Tire sizes

Post by benzy53 » Mon 27 Mar, 2017 3:38 pm

You find the ET on the inside of your rim. ET stand for "Einpress Tiefe" and it measured the offset of the rim from
the centre line. You can have a e.g. 6.5 J 16, 6.5 being the with of the rim, but depending where the centre
piece meets the rotor the rim can stick out heaps or goes deep underneath the fender. To make matters a little
more confusing: It is measusered in a funny way but the end result is that the higher the number the rim sits
more "in" and the lower the ET number the rim comes further out. Then the numbers can go to zero and after
that into negative. Negative you won't find it on a "normal" car, mainly race cars. Bottom line ET is the off set
of your rim. Normally you find that you have more clearance on the outsite then on the insite. Thats why
when people fit super wide tyres, a friend of mine has 245 on his E280T W124, the all stick out.
I hope it is now a little bit less muddy.
Regards benzy53

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benzy53
S Class
Posts: 86
Joined: Sun 22 Dec, 2013 7:21 am
Model you own: w124
Location: Melbourne

Re: Tire sizes

Post by benzy53 » Mon 27 Mar, 2017 3:46 pm

Sorry forgot to mention: when you look at the picture from ivanerrol you see the numbers in bracket (32). That is the offset
number. On your rim it will say ET 32.
Kind regards benzy 53

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Ivanerrol
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Joined: Sat 12 May, 2007 3:21 pm
Model you own: w204
Location: Melbourne

Re: Tire sizes

Post by Ivanerrol » Mon 27 Mar, 2017 3:59 pm

"Correct" offset for W124 15inch wheels is 48 or 49
"Correct" offset for W124 16inch wheels is 41 or 42

Offset is measured in millimetres.

Correct offset ensures the maximum clearance between tyres and suspension and wheel arch at full lock.

15 inch wheels "generally" came with 195x65/15 tyres.
There are calculators out there on the web Which I will give you comparisons between different tyre sizes.
You need the external diameter to be within 3% of standard tyre to keep the speedo accurate.

On the tyre placard I indicated earlier - this was a Japanese exportcar. I'm not even sue you can still get that size of 16 inch tyre easily anymore.
W211 - E240
W204 - C280
W202 - C180
W210 - E240
Departed
W202 - C200
W202 - C180 - On consignment to nephew
W126 - 380SE , 380SE (Ex SA Import), 560SEL
W124 - 300e, 260e (ex Japan)
W111 220s (Indonesia) 4 speed manual column shift
W123 230
W116 450SEL
W140 420SEL
W210 E240
W209 CLK 240
W201 190e 2.6 (ex U.K.)

Djenka018
Ponton
Posts: 234
Joined: Sun 06 Aug, 2006 1:50 am
Model you own: w107
Location: Syd Vicious

Re: Tire sizes

Post by Djenka018 » Mon 27 Mar, 2017 5:40 pm

Ivanerrol wrote:"Correct" offset for W124 15inch wheels is 48 or 49
"Correct" offset for W124 16inch wheels is 41 or 42
...
I'll risk of being labeled smartarse here... (not trying to)

I understand that above can be true for known W124 wheels as they came in one specific set of dimensions (e.g. if 16" was always in 7" width on 15 hole, etc.)

offset is rather a function of the wheel width.
for comparison, on 107:
6.5" wheels come with ET30 (commonly 14", 15")
7" come with ET23 (e.g. 15"x7, 16"x7"...)
8" come with ET11 (16", 17")
etc, maintaining the inner space
Above is up to a point where wheel cannot go outwards any more and it has to usurp the inner space (e.g. 8.5" wheel may come with ET19 taking up 15mm of inner space

Now if the wheel is 15, 16 or 22" (but it is larger than the OEM size), it only affects the profile of the tyre if you are to maintain the overall circumference and must be adjusted for the tyre width (as it is expressed as in % of the tyre width)

I was just noting that 6.5" wide wheel is generally deemed too narrow for tyres wider than 205mm, likewise, 7" wheel and 225mm wide tyre and so on because it may introduce "floating" of the wheel inside the tyre, specially with tyres with a soft sidewall.
'80 450SLC 3-continental

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