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

Shifting to Neutral w/o brake fluid

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Old 06-15-2021, 01:58 PM
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Mercedes GL 450
Shifting to Neutral w/o brake fluid

All of the brake fluid leaked out of my GL 450. I want to have it towed but the car won’t go out of Park, as the brakes are not working. Any suggestions to get it into Neutral?
Old 06-16-2021, 12:43 AM
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2011 GL 550, 2010 MB S550, 2004 BMW 645Cic 1988 Corvette
Originally Posted by Bruceh
All of the brake fluid leaked out of my GL 450. I want to have it towed but the car won’t go out of Park, as the brakes are not working. Any suggestions to get it into Neutral?
Put brake fluid in.
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Old 06-16-2021, 07:20 AM
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Mercedes Benz 2007 GL450 , 2012 BMW 528i
There should be a brake light switch that you can press by hand. This would trick the system into thinking that brake pedal is pressed.
It is located up and behind the brake pedal.
Old 06-16-2021, 10:53 AM
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'08 GL 320 CDI
So, this response is more about curiosity, but something doesn't make sense. To shift out out of Park, you simply have to depress the brake pedal to activate the brake switch. I'm not understanding what having/not having fluid has to do with this? Is there some other "fancy" criteria that MB uses to shift?

Is the truck on such a steep incline/decline that the parking pawl gear is so tight that it physically won't release (this is why first applying the e-brake is important). If this is the case, you can take tension off the pawl by using another vehicle to pull it slightly... possibly a wedge/lever system under a wheel would work.

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