Need help! new wheel grinding againts airmatic suspension!

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Old Jun 19, 2015 | 08:41 PM
  #1  
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Need help! new wheel grinding againts airmatic suspension!

Hi guys,

Need some help regarding wheel fitment.

i just fitted a 20x9 +45 245/35/20 on the front of the CLS but there is an issue.

first the bottom of the airspring is rubbing againts the top of the tire.

secondly, the inner wheel is grinding againts the side of the strut.

what can i do to solve this issue?

The rear is 20x10.5 +42 275/30/20 and seems like there isnt any sound coming from there.

I have attach a couple of photos.



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Old Jun 20, 2015 | 10:55 AM
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2013 S550 4matic (AMG sport package), 2016 Corvette Stingray.
Spacers. They will extend the wheel outwards to clear the space.
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Old Jun 20, 2015 | 11:45 AM
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Originally Posted by wilassasin
Spacers. They will extend the wheel outwards to clear the space.
any idea how many mm i should get?
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Old Jun 20, 2015 | 06:04 PM
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Originally Posted by radicalrev
any idea how many mm i should get?
Minimum 15mm spacers for et30 (make sure to get "front" only spacers - "hat" shape, like H&R part number 30556659) with at least 15mm longer bolts than currently. I'm running 20x9 et20 with 245/35-20 to be on a safe side - no rubbing at all in sport setting.
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Old Jun 21, 2015 | 03:09 AM
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Originally Posted by threeMBs
Minimum 15mm spacers for et30 (make sure to get "front" only spacers - "hat" shape, like H&R part number 30556659) with at least 15mm longer bolts than currently. I'm running 20x9 et20 with 245/35-20 to be on a safe side - no rubbing at all in sport setting.
unfortunately I don't have any access to the spacers that has the hat shape design such as H&R's DRA. In Indonesia, I have only access to the regular hubcentric spacers like the regular H8R's DR spacers.

Any particular reason to for the "hat" shape? Will the regular hubcentric spacer not fit or suitable for the front of the caR?
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Old Jun 21, 2015 | 07:53 AM
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Originally Posted by radicalrev
unfortunately I don't have any access to the spacers that has the hat shape design such as H&R's DRA. In Indonesia, I have only access to the regular hubcentric spacers like the regular H8R's DR spacers.

Any particular reason to for the "hat" shape? Will the regular hubcentric spacer not fit or suitable for the front of the caR?
H&R's 30556659 is a "front" DR spacer (not DRA - these are available only in 20mm or 25mm for front) for the front only for cars such as CLS due to dust cap. H&R's 3055665 is a "regular" DR spacer that will fit only rear of CLS. Just take a front and a rear wheel off and look at the hub - you'll see why immediately.

This is a US eBay listing of hat 15mm spacers for much less than H&R's :

http://www.ebay.com/itm/HUBCENTRIC-15MM-FRONT-WHEEL-SPACER-ADAPTERS-MERCEDES-BENZ-5X112-CB-66-5MM-/130841036237?hash=item1e76bbc5cd

Last edited by threeMBs; Jun 21, 2015 at 07:58 AM.
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Old Jun 21, 2015 | 11:45 AM
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Originally Posted by threeMBs
H&R's 30556659 is a "front" DR spacer (not DRA - these are available only in 20mm or 25mm for front) for the front only for cars such as CLS due to dust cap. H&R's 3055665 is a "regular" DR spacer that will fit only rear of CLS. Just take a front and a rear wheel off and look at the hub - you'll see why immediately.

This is a US eBay listing of hat 15mm spacers for much less than H&R's :

Hubcentric 15mm Front Wheel Spacer Adapters Mercedes Benz 5x112 CB 66 5mm | eBay
Thanks for the clarification. From the photo I see, it seems like a regular hub centric spacer design. Is there any particular detail to why this particular model differs from the rear spacer? I know the front has the dust caps, but is the specification for the front spacer very different? Unfortunately for me, I have already ordered the spacers but didn't say that it was for the front or rear.

Last edited by radicalrev; Jun 21, 2015 at 12:00 PM.
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Old Jun 21, 2015 | 04:35 PM
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Originally Posted by radicalrev
Thanks for the clarification. From the photo I see, it seems like a regular hub centric spacer design. Is there any particular detail to why this particular model differs from the rear spacer? I know the front has the dust caps, but is the specification for the front spacer very different? Unfortunately for me, I have already ordered the spacers but didn't say that it was for the front or rear.
1. While pictures in the listing look like rear spacers, they are in fact front - I bought these myself that's how I know its the correct part, they'll send front spacers (pictures are just a generic picture - terrible marketing).

2. Its not for this specific model (CLS). Its a "Mercedes" thing - most MB cars (other than SUVs) at least for US market (I assume worldwide too) use front dust caps (the only exception than comes to mind in the current lineup is R231 SL).
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Old Jun 21, 2015 | 09:43 PM
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Originally Posted by threeMBs
1. While pictures in the listing look like rear spacers, they are in fact front - I bought these myself that's how I know its the correct part, they'll send front spacers (pictures are just a generic picture - terrible marketing).
Do you know if they are any different spec wise? Maybe larger center bore in order to fit through the dust cap? Or maybe the design on the spacer's lip is different?

Anyone have ever taken off the dust caps yet?

Edit:

Is this the design of spacer you are talking about?

Last edited by radicalrev; Jun 22, 2015 at 06:38 AM.
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Old Jun 22, 2015 | 08:31 AM
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Originally Posted by radicalrev
Is this the design of spacer you are talking about?
Yes.
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Old Jun 22, 2015 | 09:07 AM
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Originally Posted by threeMBs
Yes.
Finally I understand what you have been telling me! Thank u so much for pointing me to the right direction.

Have you or anyone else with the C218/W218 installed them before? Is it a direct plug and play or you have to remove the current OEM grease/dust cap.
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Old Jun 22, 2015 | 09:27 AM
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Originally Posted by radicalrev
Finally I understand what you have been telling me! Thank u so much for pointing me to the right direction.

Have you or anyone else with the C218/W218 installed them before? Is it a direct plug and play or you have to remove the current OEM grease/dust cap.
I have them on my CLS now. Have/had them on front of many MBs (current and prior) as well. That's the point in these spacers - direct "plug and play" for the front just as "standard" spacers are for the rear. Do not remove caps! These "front" spacers go over them.
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Old Jun 22, 2015 | 10:05 AM
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Originally Posted by threeMBs
I have them on my CLS now. Have/had them on front of many MBs (current and prior) as well. That's the point in these spacers - direct "plug and play" for the front just as "standard" spacers are for the rear. Do not remove caps! These "front" spacers go over them.
Very informative. Anyway, PM sent.
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Old Jun 22, 2015 | 10:21 AM
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http://www.hrsprings.com/application...esults/25/TRAK
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Old Jul 15, 2015 | 12:19 AM
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Just an update.

Finally installed the H&R spacers.

Here is how it should look like for anyone is curious about the front only spacer.





Should I be worried about that little gap? The mechanic who installs it says that it is as close to the hub as possible.

I did a test drive after the install with speeds up to 160km/h and no vibrations or any weird noises though.
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Old Jul 15, 2015 | 08:58 AM
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These are 20mm H&R's DRA spacers.
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Old Jul 15, 2015 | 09:36 AM
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Originally Posted by threeMBs
These are 20mm H&R's DRA spacers.
Yep correct. These are the DRA spacer. Glad I went with 20mm. Could have went with 25mm or even 30mm and will have no problem with fitment.

Do you think I should be worried about the little gap?
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Old Jul 15, 2015 | 01:08 PM
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Originally Posted by radicalrev
Yep correct. These are the DRA spacer. Glad I went with 20mm. Could have went with 25mm or even 30mm and will have no problem with fitment.

Do you think I should be worried about the little gap?
"Front" 25mm and 30mm are not available.

There should be almost no gap. Anything much wider than a finger nail indicates that spacer is not "seating" on a hub correctly. The gap in your pictures looks too wide and IMO is a problem that should be addressed ASAP. Do you feel any vibration in the steering wheel?
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Old Jul 15, 2015 | 09:52 PM
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Originally Posted by threeMBs
"Front" 25mm and 30mm are not available.

There should be almost no gap. Anything much wider than a finger nail indicates that spacer is not "seating" on a hub correctly. The gap in your pictures looks too wide and IMO is a problem that should be addressed ASAP. Do you feel any vibration in the steering wheel?
Hmm now you got me worried.

However, I test drove on the highway to speeds up to 160 km/h and did not notice any vibration or any noise. Should I be worried and get them reinstalled?
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