GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

roof bars - placement insight for a roof box?

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Old 04-05-2012, 10:02 AM
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roof bars - placement insight for a roof box?

Howdy Gentz-

Getting ready to mount up a 20cubic foot roof box for a roadtrip.

Was hoping folks here could share their insight / experience as to the best recommended placement of the cross bars.

I've surfed a bit and found reference to "as far back as possible", to mitigate noise / best support the load.

Would appreciate any insight you all might share.

TIA folks!
Old 04-05-2012, 11:57 AM
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Originally Posted by Sgt. Schultz
Howdy Gentz-

Getting ready to mount up a 20cubic foot roof box for a roadtrip.

Was hoping folks here could share their insight / experience as to the best recommended placement of the cross bars.

I've surfed a bit and found reference to "as far back as possible", to mitigate noise / best support the load.

Would appreciate any insight you all might share.

TIA folks!
There are two dimples on the inside of the roof rail to center the front crossbar and the rear crossbar should be centered over the rear rail support.
That is according to instructions that came with my factory bars.
Old 04-05-2012, 02:32 PM
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thanks

that's where the bars are set now, but I know I've seen folks reference placing them further back and figured there was good reason
Old 04-05-2012, 07:27 PM
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If you move the bars, don't forget that the length of each bar moved needs to change because the roof rails are NOT parallel. You'll be able to access the adjustment bolts by pulling up the rubber strip from the end.
Old 04-07-2012, 01:21 PM
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Depending on the length of your top box, make sure you can open the rear hatch all the way. That may determine how far back you place the cross rails. Also, be mindful of the sunroof possibly hitting the load in the front if you accidentally open it. Pretty much common sense but sometimes common sense gets left behind.
Old 04-07-2012, 10:08 PM
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thanks for those tips guys, will do

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