# 2006 Mercedes-Benz E-Class - Back end issues

**URL:** <https://community.cartalk.com/t/2006-mercedes-benz-e-class-back-end-issues/169220>\
**Category:** Maintenance/Repairs\
**Tags:** mercedes-benz\
**Created:** [August 26, 2020, 7:47pm UTC](https://community.cartalk.com/t/2006-mercedes-benz-e-class-back-end-issues/169220 "2020-08-26T19:47:59Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Tori57](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@Tori57](https://community.cartalk.com/u/Tori57)\
**Post date:** [August 26, 2020, 7:47pm UTC](https://community.cartalk.com/t/2006-mercedes-benz-e-class-back-end-issues/169220/1 "2020-08-26T19:47:59Z")

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My back end whines really loud or sounds like road noise after relaxing tires and also alignment

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**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [August 26, 2020, 10:06pm UTC](https://community.cartalk.com/t/2006-mercedes-benz-e-class-back-end-issues/169220/2 "2020-08-26T22:06:36Z")

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Relaxing? Or replacing? Not sure what you mean

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**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\
**Post date:** [August 26, 2020, 10:25pm UTC](https://community.cartalk.com/t/2006-mercedes-benz-e-class-back-end-issues/169220/3 "2020-08-26T22:25:14Z")

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Probably “replacing.” I suspect autocorrect gone wrong. Anyway, tires with different tread can make a different sound when you’re driving. Beyond that, it’s possible the differential is making some noise. The OP can have it checked out for peace of mind.

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [August 27, 2020, 6:11pm UTC](https://community.cartalk.com/t/2006-mercedes-benz-e-class-back-end-issues/169220/4 "2020-08-27T18:11:53Z")

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If the tires are a change, have them mounted up front so you listen for the noise to move. You want to target or eliminate the tires. Tires are cheap compared to the rear differential.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [August 27, 2020, 6:14pm UTC](https://community.cartalk.com/t/2006-mercedes-benz-e-class-back-end-issues/169220/5 "2020-08-27T18:14:33Z")

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> [@Mustangman](#):
>
> If the tires are a change, have them mounted up front so you listen for the noise to move. You want to target or eliminate the tires. Tires are cheap compared to the rear differential.

+1  
Additionally, the rear wheel bearings could be the source of the noise.

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**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [August 28, 2020, 3:55am UTC](https://community.cartalk.com/t/2006-mercedes-benz-e-class-back-end-issues/169220/6 "2020-08-28T03:55:58Z")

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> [@VDCdriver](#):
>
> Additionally, the rear wheel bearings could be the source of the noise.

That would also be my assumption