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

Parking brake question

Old Aug 19, 2011 | 10:39 AM
  #1  
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2011 GL 350-Lighting Pkg-P2-Parktronic-Blind spot assist-Heated everything-Running brds ,etc
Parking brake question

I am noticing that in my '11 350, that whenever I apply the parking brake, the vehicle almost always seems to be 'resting' on the gear, rather than the brake holding it.

When you guys park on a very slight slope, put the truck in neutral, and apply the parking brake, does the vehicle still roll?
Curious!
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Old Aug 19, 2011 | 01:24 PM
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2011 GL350 Bluetec, Irridium over Black Leather
Originally Posted by giffie
I am noticing that in my '11 350, that whenever I apply the parking brake, the vehicle almost always seems to be 'resting' on the gear, rather than the brake holding it.

When you guys park on a very slight slope, put the truck in neutral, and apply the parking brake, does the vehicle still roll?
Curious!
My 2011 350 does this, too. It's on my To Check list for the first service visit.

- Mark
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Old Aug 19, 2011 | 01:59 PM
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From: Seattle, WA
2007 GL450
All drum style parking brakes allow some rotation or set before they can hold their full load. If your truck is moving excessively than an adjustment is in order. It is good practice to always set the parking brake, place the vehicle in neutral, release the foot brake and then set it in park. It only takes an extra second. This way you save wear and tear on the electornic parking pawl that this trucks transmission uses.

Last edited by gbigpapa; Aug 19, 2011 at 03:05 PM.
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Old Aug 19, 2011 | 02:09 PM
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G63, C190 AMG GTC, W209 CLK63 BS, W208 CLK430
Originally Posted by gbigpapa
All drum style parking brakes allow some rotation or set before they can hold their full load. It is also good practice to always set the parking brake, place the vehicle in neutral, release the foot brake and then set it in park. It only takes an extra second. This way to never load up the electornic parking pawl on the transmision.
That's my procedure as well. I've had friends and family try to make fun of me for setting the "emergency" brake on an automatic...
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Old Aug 19, 2011 | 02:19 PM
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2011 GL350 Bluetec, Irridium over Black Leather
Originally Posted by gbigpapa
All drum style parking brakes allow some rotation or set before they can hold their full load. It is also good practice to always set the parking brake, place the vehicle in neutral, release the foot brake and then set it in park. It only takes an extra second. This way to never load up the electornic parking pawl on the transmision.
I think our surprise here is that it's allowing more slop than we'd expect.

- Mark
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Old Aug 19, 2011 | 05:30 PM
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2011 GL 350-Lighting Pkg-P2-Parktronic-Blind spot assist-Heated everything-Running brds ,etc
Originally Posted by mdadgar
I think our surprise here is that it's allowing more slop than we'd expect.

- Mark
Exactly. In fact, this afternoon, drove up my neighbor's rather steep driveway, put the truck in neutral, set the parking brake.
Released foot brake expecting the truck to stop after rolling a bit, but it just kept on rolling..

Taking it to the dealer next week.
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