[W126 Coupe] MBCOUPES Digest, Vol 61, Issue 8

[Ernest Stephens]

Mike,
Did you finish your LS6 project and do you have pics? 
steve

----- Original Message ----- 
  From: Mike R.<mailto:mramay at att.biz> 
  To: 'Mercedes Coupes Mailing Lists'<mailto:mbcoupes at mbcoupes.com> 
  Sent: Monday, August 10, 2009 07:38 PM
  Subject: Re: [W126 Coupe] MBCOUPES Digest, Vol 61, Issue 8


  Jim,
  I have a spare EZL, part number 004 545 55 32, from the FrankenBenz ('87
  560SEC). I pulled it off the car about three years ago when I started the
  "let's dump an LS6 engine into the car" project. What do you need? 

  I'd be willing to send it to you to see if it fixes your problem. If so, you
  can PayPal me then or send it back.

  Later,
  Mike R
  Las Vegas
  (702) 494-8056

  -----Original Message-----
  From: mbcoupes-bounces at mbcoupes.com<mailto:mbcoupes-bounces at mbcoupes.com> [mailto:mbcoupes-bounces at mbcoupes.com]
  On Behalf Of Gerry Van Zandt
  Sent: Monday, August 10, 2009 2:03 PM
  To: mbcoupes at mbcoupes.com<mailto:mbcoupes at mbcoupes.com>
  Subject: Re: [W126 Coupe] MBCOUPES Digest, Vol 61, Issue 8



  JIm,

  Usually a faulty EZL module will either cut all electrical signal to one
  entire cylinder bank, or both. They cannot really be rebuilt, despite the
  claims of some "rebuilders". I've not seen good success with remanufactured
  units. I'd call Beckmann and check with them, as their reputation on other
  reman ports is impeccable and they will be honest and straightforward with
  you as to whether then can realistically do EZLs.

  I recently had the EZL go out on my 1994 E500 (with an M119 engine) but
  happened to have a spare unit on hand that I picked up for $800 (it was
  used). The main issue was that the engine was running on four cylinders --
  the left bank was entirely dead (electrically).

  The M117 EZLs seem to be a bit more reliable than the more complex M119
  units, and certainly there are plenty of viable M117/560SEC-L units out
  there used. I believe a used one can be had for $250-300 at a wrecking yard,
  perhaps less if one looks hard enough.  On the M119 they tend to go from
  $750-1200 used ... they were up to $3,200 earlier this year, but have
  dropped in recent months to around the $2,800-2,900 price range. M117 units
  are a bit cheaper new, and are still available from MB if you choose to go
  that route.

  EZLs are readily available on eBay for our cars, or from a Mercedes recyler
  such as Potomac German Auto or Aurora Auto Wrecking there in Seattle.

  Two things when one replaces an EZL:

  a) be sure to purchase and install a new coil at the time you retrofit a
  replacement (new or used) EZL on the car. Many mechanics believe a "dirty"
  signal from a bad coil can hasten the demise of an EZL.  It's cheap
  insurance and coils are often overlooked parts anyway ... particularly on
  our coupes with their age and all.

  b) be sure that the replacement EZL is mounted with a good coat of "thermal
  paste" between the bottom of the EZL and the inner fender surface. This is
  VERY important so as to transmit the heat away from the EZL and to the car
  itself. Heat is the enemy of the EZL and can dramatically cause it to fail.
  Generally this is a white or silvery paste that is thermally conductive --
  same stuff that sits between a microprocessor chip and a heat sink in a PC.

  Hope this helps.

  Cheers,
  Gerry
  (Seattle native, recently of Portland 13 years, now in Houston, TX)

   

  On Monday, August 10, 2009, at 11:15AM, Jim Houk wrote:
  >  The 560SEC has stalled/shut down on the road with my wife driving. 
  >Engine just stops. Starts right up and is then ok.
  >
  >The SEC has about 89K. Replaced the fuel pump relay last April 2008 with 
  >a new unit, installed the back up relay to see if maybe the new relay 
  >was faulty.
  >
  >On my other SEC when the ezl went out -- it would not start at all until 
  >it was replaced.
  >
  >Are there any warning signs when the EZL starts to fail or is it all at 
  >once? Can they be remanufactured? Has any one used Beckmann to rebuild 
  >one? or should a used one be located and kept on hand?
  >
  >All suggestions are welcome.
  >
  >Jim Houk
  >Silverdale, Wa
  >1990 560SEC - 1972 350SL

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