[W126 Coupe] 7" of play in park

[Elm Zobens]

I think we may all be interpreting the information differently.

Perhaps we need to rephrase the question to 560secfl:
Does the car roll 7" between the time the car is placed in Park and the transmission locks (normal) OR when the car IS already locked in Park, you can roll it 7"?

Depending on the scenario above, you may or may not have an issue.
If it rolls 7" between placing it in Park and before the car locks, this in NOT an issue.
If it rolls 7" once it's locked in Park, you may have something going on but again, I would inspect your driveline play (U-Joints and Rear Axle) before I suspect the trans.
Parking pawls normally don't 'wear'. The either work or they don't (breakage).
Slop or play in the Park mechanism should not increase appreciably with age or mileage (as Johnathan confirmed in his S&G test).

If you just spent 2K five months ago on this trans and the Pawl is now defective, I'd shoot your mechanic. The Park mechanism should outlast the life of the transmission/car in normal use.

Start with the low hanging fruit first- Please clarify which scenario you are seeing the 7" play and then troubleshoot accordingly. Since the transmission was just done by a (hopefully) competent mechanic, I would check the other potential culprits first.
Elm

 

--- On Mon, 9/14/09, Dan Landiss <dan at landiss.com> wrote:

From: Dan Landiss <dan at landiss.com>
Subject: Re: [W126 Coupe] 7" of play in park
To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>
Date: Monday, September 14, 2009, 7:59 PM




  
Perhaps Mr. Pecarich is not aware that Jono IS an MBZ mechanic?



FWIW, my 560SEC rolled an inch or two in Park, but never six. I guess I
got one with extra teeth.........







on 9/14/2009 7:20 PM FPecar4525 at aol.com wrote:

  
  
  
  
  
    
      As I said before,  I have checked
with a MBZ mechanic and the answer was "The roll in park is
normal. Mercedes uses very few teeth on their park lock gear so you'll
get some roll before the pawl engages."

      
       
      Frank Pecarich
      Ventura, California

      
      
    
  
  
-- 
--
Never argue with a dragon, for you are crunchy and taste good with ketchup.



 

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