Caliper clearance - MBWorld.org Forums

Notices
E-Class (W213) 2016 -

Caliper clearance

Old 01-06-2019, 01:58 AM
  #1  
Junior Member
Thread Starter
 
Join Date: Dec 2018
Posts: 36
Thanked 6 Times in 4 Posts
‘19 E450 Wagon Lux.
Question Caliper clearance

Looking into getting a set of snow wheels/tires. I'm considering Mandrus wheels and going down from the 19' OEM I have on, to an 18 inch wheel, then with non-run flats. I think that'll make things super cush. Since the E450 wagon comes with 18 inch wheels for 2019 too I was hoping it'll be an easy fit. But looking at the inside diameter (the measurement important for caliper clearance,sometimes called "x-factor"), is only 16-5 inches or so. The outside diameter is actually 20 by my tape measure, but it's clearly considered a 19inch rim/tire. MOst of the wheel/ tire sites don't list x-factor at all. Even the nice wheel-size.com calculator site doesn't mention inner diameter much.

Anyway, at the top and bottom of my caliper the clearance is only a finger thickness with the 19's. I understand wheel makers will changes the lip and rim thickness with different overall sizes. But I'm not looking to get stuck with a wheelset I can't use. But also would like to go down to 18's rather than just accept their "guaranteed" 19" recommendation. The stock 19" 10 spokes do seem to have a thick lip, so I'd hope 18s work fine.

Are there wheel standards that say x-size wheel will have z size inner diameter?

CarID has a "guaranteed fitment" but only on the 19' ones. Almost every wheel/ tire site doesn't have an up to date vehicle selector (including MB own tire package site for that matter.)

Any thoughts? Thx.
jl199986 is offline  
Old 01-06-2019, 11:08 AM
  #2  
MBWorld Fanatic!
 
rbrylaw's Avatar
 
Join Date: Aug 2004
Location: Tampa, FL
Posts: 3,026
Thanked 251 Times in 209 Posts
2019 E450 4Matic & 2018 E400 4Matic
Originally Posted by jl199986 View Post
Looking into getting a set of snow wheels/tires. I'm considering Mandrus wheels and going down from the 19' OEM I have on, to an 18 inch wheel, then with non-run flats. I think that'll make things super cush. Since the E450 wagon comes with 18 inch wheels for 2019 too I was hoping it'll be an easy fit. But looking at the inside diameter (the measurement important for caliper clearance,sometimes called "x-factor"), is only 16-5 inches or so. The outside diameter is actually 20 by my tape measure, but it's clearly considered a 19inch rim/tire. MOst of the wheel/ tire sites don't list x-factor at all. Even the nice wheel-size.com calculator site doesn't mention inner diameter much.

Anyway, at the top and bottom of my caliper the clearance is only a finger thickness with the 19's. I understand wheel makers will changes the lip and rim thickness with different overall sizes. But I'm not looking to get stuck with a wheelset I can't use. But also would like to go down to 18's rather than just accept their "guaranteed" 19" recommendation. The stock 19" 10 spokes do seem to have a thick lip, so I'd hope 18s work fine.

Are there wheel standards that say x-size wheel will have z size inner diameter?

CarID has a "guaranteed fitment" but only on the 19' ones. Almost every wheel/ tire site doesn't have an up to date vehicle selector (including MB own tire package site for that matter.)

Any thoughts? Thx.
I can't help you, but if you do a search around here, you'll find loads of threads on this very subject. Hopefully, someone who bought winter tires for their car will chime in.

You could start with this: https://mbworld.org/forums/search.php?searchid=23356122
rbrylaw is offline  
Old 01-06-2019, 01:28 PM
  #3  
Junior Member
Thread Starter
 
Join Date: Dec 2018
Posts: 36
Thanked 6 Times in 4 Posts
‘19 E450 Wagon Lux.
I had done the search, hence the new thread. There's some great Official Wheel threads for older models, but doesn't look like we're quite there yet on the s213. Nothing that quite addresses my questions. Loads of wheel posts, but much less specific.

I'll have to give the wheel mfr a call. And post results once I'm all set up.
jl199986 is offline  
Old 01-06-2019, 02:22 PM
  #4  
MBWorld Fanatic!
 
Join Date: Jul 2009
Posts: 2,038
Thanked 51 Times in 46 Posts
4 MBs
Originally Posted by jl199986 View Post
I had done the search, hence the new thread. There's some great Official Wheel threads for older models, but doesn't look like we're quite there yet on the s213. Nothing that quite addresses my questions. Loads of wheel posts, but much less specific.

I'll have to give the wheel mfr a call. And post results once I'm all set up.

Check the Tire Rack (winter tire/wheel package section). There are a number of choices in 18" including by Rial (one of Mb's OEM wheels suppliers), I.E. Rial M10 (looks OEM, uses OEM bolts) in several colors. Incredibly priced too.

Last edited by threeMBs; 01-06-2019 at 08:10 PM.
threeMBs is offline  
The Following User Says Thank You to threeMBs For This Useful Post:
jl199986 (01-06-2019)
Old 01-06-2019, 03:34 PM
  #5  
Member
 
Join Date: May 2009
Location: Great White North
Posts: 99
Thanked 1 Time in 1 Post
RR Sport,2012 E63 Wagon , '71 K5 Blazer, '99 diesel Suburban
I am running 18 inch aftermarket wheels on my '17 E400 wagon . I previously had these wheels on my '12 e63 wagon. Clearance was tight on the E63 but lots of room on the E400. You will like the slightly cushier ride.
tarsands is offline  
The Following User Says Thank You to tarsands For This Useful Post:
jl199986 (01-06-2019)
Old 01-06-2019, 03:37 PM
  #6  
Junior Member
Thread Starter
 
Join Date: Dec 2018
Posts: 36
Thanked 6 Times in 4 Posts
‘19 E450 Wagon Lux.
I'm a big Tire Rack fan. I've bought a couple sets of wheel packages and am always thrilled with the price and speed of delivery.

Their aftermarkets are sized with huge bores usually, then they use the hubcentric rings to fit them to various OEM size hubs. While one can run hubcentric rings, I've fussed with those too many times- whether premium/ plastic, OCD lugbolt tightening and grease to get them as perfect as possible- but nothing works as well as proper bore size and no rings. Its at the higher speeds you'll really notice it.

[Edit: the Rials do not need hub rings. Yes! & Thanks!]

I can of course just go to the dealer and get MB setups. But that's more expensive, lower quality, heavier wheels and a limited set of package sizes they consider "official"- the dealer is getting back to me on whether they can do 18" on my E450. I wondered if there were any changes at all to the E450 brakes, vs 18" E400 4matic sedan (more typically listed on the tire/wheel sites). Or even if any of the packages I ordered alter the brake size- doubtful I'd assume, but I need to verify. Otherwise I can't really extrapolate from other posts' experience.

I should be able to get my question answered from the wheel mfr and just measuring myself. I just wondered if there were any standards for overall wheel size diameter also telling us something specific about the inner diameter for brake clearance. The wheel size calculator websites don't mention it really, within all their other measurements. Unless, I'm missing something obvious. (very possible with me.)

My E450 calipers don't have much clearance at each end of the caliper with the 19' MB 10 spokes it came with . Plenty of room around the rest of the wheel. But I'm afraid they might not have 1/2 inch to give on each side if I went down from 19 to 18 for my winters. There is just enough room for my index finger thickness, which touches both caliper and wheel. (most threads discuss going up in size.) Now, the OEM wheel does seem to have a nice thick flange lip to it's drop center. But the sites/ don't make it easy to know that clearly without measuring it it seems. Probably, but I can't return mounted tires and wheels, so need to be 100%. I was wondering if there was some industry standard I was unaware of. Like "A 19" wheel always means at least x for the inside diameter (caliper clearance) and "An 18" wheel always means x for it's inside clearance.

Seems like a fundamental thing sites would list. At least the actual mfr themselves. But no dice.

Last edited by jl199986; 01-06-2019 at 04:06 PM.
jl199986 is offline  
Old 01-06-2019, 03:40 PM
  #7  
Junior Member
Thread Starter
 
Join Date: Dec 2018
Posts: 36
Thanked 6 Times in 4 Posts
‘19 E450 Wagon Lux.
Originally Posted by tarsands View Post
I am running 18 inch aftermarket wheels on my '17 E400 wagon . I previously had these wheels on my '12 e63 wagon. Clearance was tight on the E63 but lots of room on the E400. You will like the slightly cushier ride.
Thanks- do you know your wheel model name? I'm hoping for even cushier!

Last edited by jl199986; 01-06-2019 at 03:44 PM.
jl199986 is offline  
Old 01-06-2019, 04:05 PM
  #8  
Junior Member
Thread Starter
 
Join Date: Dec 2018
Posts: 36
Thanked 6 Times in 4 Posts
‘19 E450 Wagon Lux.
Originally Posted by threeMBs View Post
TireRack is the place:

https://www.tirerack.com/snow/Winter...50&sortValue=1

There are a number of choices in 18" including by Rial (one of Mb's OEM wheels suppliers), I.E. Rial M10 (looks OEM, uses OEM bolts) in several colors. Incredibly priced too.
I should have investigated further! Those Rial's do indeed NOT need hubcentric rings. Should be a home run price wise! I'll let people see the final result.
jl199986 is offline  
Old 01-14-2019, 01:38 PM
  #9  
Junior Member
Thread Starter
 
Join Date: Dec 2018
Posts: 36
Thanked 6 Times in 4 Posts
‘19 E450 Wagon Lux.
Thanks 3MBís. Jumped on the Rials. A basic set of winters for cheap that fit well, OEM hub bore. MB caps. Itís indeed clear they make Mb stuff. The hub covers are identical plastic other than logo. Caliper clearance is quite tight, but should clear pea size gravel and salt should it get in.

The ride on these x-ice is wonderful. 1 inch smaller wheels plus non-run flat! I donít understand how some people claim to not notice the difference.

Very happy. Looking forward to needing some summer tires soon enough.
jl199986 is offline  
Old 01-14-2019, 01:41 PM
  #10  
Junior Member
Thread Starter
 
Join Date: Dec 2018
Posts: 36
Thanked 6 Times in 4 Posts
‘19 E450 Wagon Lux.
Photos
Attached Thumbnails Caliper clearance-9ea5d339-c826-4250-b440-c72bfa452be8.jpeg   Caliper clearance-b5b55e2b-2934-4897-bd36-7ac1ac3c0d47.jpeg   Caliper clearance-e3590be0-f6d2-4202-8700-ebca4a8d12e6.jpeg  
jl199986 is offline  
Old 01-15-2019, 01:24 PM
  #11  
Member
 
Join Date: Dec 2017
Posts: 124
Thanked 7 Times in 6 Posts
e300
Nice!
mobster600 is offline  
The Following User Says Thank You to mobster600 For This Useful Post:
jl199986 (01-15-2019)

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Caliper clearance


Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: