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Old 08-27-2020, 07:49 PM   #1
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2018 Berkshire 40xl frame noise

We just bought the used 40xl a few months back.
On smooth roads it seems pretty quiet.
When driving slower on back roads I am getting a popping noise.
It sound like something is loose on front end.
When we slow down to make a turn it seems to be the worst.
The coach only has 14,000 miles on it.
I did grease the front end before the last trip,
but i'm not sure it was any better.
Looking for ideas.
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Old 08-28-2020, 08:21 AM   #2
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I would take it into a front end suspension specialist and have them check the entire system.
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Old 08-30-2020, 04:57 AM   #3
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Something else you may want to check is the right front fender liner. I have a 2012 390BH60 ... this was an issue at that time and Im not surre if it was ever corrected.

With older versions the fender liner was attached to an unsupported piece of angle iron. While driving this could make a hell of a racket. The problem could be solved by putting a couple of self tapping screws thru the angle iron i to the side of the interior step
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Old 09-02-2020, 12:47 PM   #4
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Loose frame for RF fender liner

I encountered the same problem with the loose angle iron. I posted my fix and a photo at
https://www.forestriverforums.com/fo...ml#post2177790

–Gordon
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2015 Berkshire 34QS
The Manual I wrote for our 34QS:
https://www.forestriverforums.com/fo...qs-191578.html
Toad: 2019 Ford Ranger XLT 4x4; Formerly: 2005 Acura EL (aka Honda Civic)
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Old 10-22-2020, 07:03 PM   #5
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defective front shocks

I have a 2018 Berkshire 40C that has bad front shocks.
When you push up and down on suspension the front shock was clicking.
I was wondering if anyone has replaced the original sachs
16-20405-000 with anything else?
Looking for recommendations and part numbers
The coach has just over 13,000 miles on it
Thanks
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Old 10-22-2020, 07:51 PM   #6
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Quote:
Originally Posted by georgewegman View Post
I have a 2018 Berkshire 40C that has bad front shocks.

When you push up and down on suspension the front shock was clicking.

I was wondering if anyone has replaced the original sachs

16-20405-000 with anything else?

Looking for recommendations and part numbers

The coach has just over 13,000 miles on it

Thanks


A lot of us went with Bilsteins and a few with Koni’s. Much better than original shocks
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Old 10-22-2020, 08:00 PM   #7
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Mine is a couple years older than yours, but same issue with the passenger side front mud flap mount. And, recall from freightliner on the bushings being incorrect which made a popping sound and feel in the steering wheel while turning at low speeds. They handled it and no issue since. These coaches are pretty smooth And quiet normally so you’ll know pretty quickly when you’ve found the problem.
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Old 10-22-2020, 09:40 PM   #8
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I'm very happy with the Bilsteins that I installed. They damp out the annoying oscillations that you get on a road that is rough and should be resurfaced.

On the front, Bilstein 24-234498
https://www.shockwarehouse.com/site/...n-Freightliner

On the rear, Bilstein 24-234504
https://www.shockwarehouse.com/site/...orhome-Chassis

The website links let you check the specs of your coach. Make sure you get the right ones. My coach has the Freightliner XCR chassis. I believe your coach also has that chassis, but the rear shocks may be different since you probably have the V-ride rear suspension.

Since I'm in Canada, I ordered from PartsEngine.ca, not ShockWarehouse. Their receipt gives details about the shocks:

255071-B
24-234504
Custom Product-custom-order
Bilstein 24-234504 Shock Absorber; B6 (HD) Series Shock; 46 Millimeter; Nitrogen Gas Charged Mono Tube; Limited Lifetime Warranty; Not Adjustable; 20.94 Inch Extended Height/ 13.7 Inch Compressed Height; Eye 19.1 Millimeter Upper And Lower Mount; With Shock Boots; Yellow Body; Blue Boots; Single

255071-A
24-234498
Custom Product-custom-order
Bilstein 24-234498 Shock Absorber; B6 (HD) Series Shock; 46 Millimeter; Nitrogen Gas Charged Mono Tube; Limited Lifetime Warranty; Not Adjustable; 24.11 Inch Extended Height/ 15 Inch Compressed Height; Eye 12.9 Millimeter Upper Mount/ Eye 19.1 Millimeter Lower Mount; With Shock Boots; Black Boots; Single

Looking up my coach in Freightliner Parts Pro, I get different OEM Sachs numbers than you show, so your shocks might be different. My OEM Sachs shocks were:
Front: 16-18920-000
Rear: 16-16736-000

When I changed my shocks, I measured the travel of the old ones and compared it to the advertised travel on the new ones, to make sure they were compatible.

Changing the gas struts is awkward, since they automatically extend to the full length. I worked with the wheels on and it was hard to get around them and compress the new shocks. In retrospect, removing the wheels first probably would have been easier. I do have the torque equipment and jacks to remove the wheels.

–Gordon
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2015 Berkshire 34QS
The Manual I wrote for our 34QS:
https://www.forestriverforums.com/fo...qs-191578.html
Toad: 2019 Ford Ranger XLT 4x4; Formerly: 2005 Acura EL (aka Honda Civic)
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