[W126 Coupe] A/C 560 SEC update

[johnfolger at earthlink.net]

Thanks for all of your terrific suggestions on hunting down my A/C issues. I
am printing off your comments so my mechanic can answer the questions
regarding high and low side pressures etc. If there are any other thoughts,
no matter how wild, please advise so I can do a complete diagnostic
assessment. 
Marcus, I did look up the Phoenix and 48hp, but didn't find anything on the
replicating of the steel panels. I have to assume that the glass Lorenzer
and others are out of the question. 
Of course I got sidetracked reading the great story on the California
repossession-that should be required reading for all!!!
I think Jono would just tell me to stop fooling around and buy a damn
widebody!! I will PM him about the seats I mentioned. It's just that I
really love driving this car and have too much money in to turn it into a
parts car. AAAARGHHH the thought! Any thoughts or comments will be helpful,
you can't hurt my feelings after I was dumb enough to keep writing checks.
BTW, is there, or isn't there a MAX setting on the A/C and can you change
back to R12?
John

  
  

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Subject: MBCOUPES Digest, Vol 71, Issue 5

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Today's Topics:

   1. Re: Cross drilled vs. stock (DCrawford at tompkinsinc.com)
   2. W126 A/C question? (johnfolger at earthlink.net)
   3. Re: W126 A/C question? (Markus Meyer)
   4. Re: W126 A/C question? (jonathan)
   5. Re: W126 A/C question? (Dick Spellman)
   6. Re: W126 A/C question? (Markus Meyer)


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Message: 1
Date: Tue, 4 May 2010 12:25:17 -0400
From: <DCrawford at tompkinsinc.com>
Subject: Re: [W126 Coupe] Cross drilled vs. stock
To: <mbcoupes at mbcoupes.com>,	<jhodgman at gmail.com>
Message-ID:
	
<5B7A77D721087A4695679A48D7AB3B39047EF3A0 at tausnc1-email1.tompkins.com>
Content-Type: text/plain; charset="us-ascii"

Jay,

 

I put a set of Akebono's on my wife's Volvo - absolutely terrific.  Very
much
like OEM friction feel, and essentially NO brake dust.  When I wanted to put
them on my '84 500 SEC, I could not find them listed any place; not even on
the Akebono Web site.  

 

Could you tell me where you sourced your pads?

 

Thanks for the help,

 

Dave Crawford

 

From: Jay Hirsch [mailto:J.Hirsch at mac.com] 
Sent: Monday, May 03, 2010 12:21 PM
To: jhodgman at gmail.com; Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Cross drilled vs. stock

 

I use Akebono, non  racing pads and rotors,  Made in USA  of Canada  No
squeal, no black dust.  

My car is a  cruiser 85 mph on highway, not for racing or performance.  

Met some  "tuner" guys a few  years ago and they recommended Akebono.

Racing pads and rotors  work best  only when  they get hot, nor meant for
street use.

There is enough  friction in general in the world, do not  need anymore

keep cruisin

Jay H

On May 3, 2010, at 11:22 AM, Jonathan Hodgman wrote:





Reason I like the slotted is not so much for air to get in, but w/ organic
pads you do have a fair bit of off gassing (more so then w/
sintered/ceramic)
so these slots Would help there.

I also like that you have more leading edges on the slotted rotor, while it
does dimish pad life it also helps keep the face of the pad fresh for
optimal
friction.

As for rotor manufacture, I'd stick w/ ATE, Balo or Zimmermann.  The
consumer
branded brembo's are coming from China last set I saw...:(

www.buyeuroparts.com is my pref'd vendor, honest and knowledgeable!

Jonathan

PaulLoui at comcast.net wrote: 

Ramon

 

I have Brembo crossed drilled slot rotors on my 84' coupe. But when it comes
time to replace them I will go back to a quality stock rotor. The slotted
rotors provide a means for air to pass through the rotors keeping them
cooler
than stock. In a race car application this is something you would definetely
want. But for everyday driving they will wear out your brake pads twice as
fast. Whether or not they are worth buying is a personal preference kind of
thing that will ultimately be up to your pocket book. I personally think
that
a quality stock pair would do the job. Stock rotors vary in price quite a
bit
and that's gbecause of the difference in the quality of the metal used to
make them, Brakes systems are a place you don't want to skimp or cut
corners.
There are a few companies online that have them. I got mine from
Autohausaz.com. Brakeworld.com also has a good selection.  I hope that helps
in your decision.

 

Paul---
From: m0nm0n at aol.com
To: mbcoupes at mbcoupes.com
Sent: Friday, April 30, 2010 8:04:36 PM GMT -08:00 US/Canada Pacific
Subject: [W126 Coupe] Cross drilled vs. stock

Is it worth buying cross drilled rotors for my 82' 380 sec or stay stock?
Where do you recommend to buy the rotors? best deal? 

 

thanks,

 

Ramon


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-- 
Jonathan Hodgman
Blue Ridge Mercedes/AMG East
http://www.blueridgemb.com
Offering Enthusiast Service, Restoration and Tuning.
(404)805-1357
97 C36
96 S600 Euro
94 E420 (Parts)
93 300SE
93 500E (Parts)
91 E300D 2.5
91 560SEC ECE
91 500SL Jap Spec
91 560SEC 226/271
90 300SL
88 300E AMG
89 190E 2.6 5sp
89 300TE 
88 560SEC AMG Euro ECE (Parts)
89 560SEC AMG 6.0L SOHC Solid Lifter
87 AMG Hammer Wagon 6.0L 32V
87 AMG Hammer 6.0L 32V
86 560SEL AMG 6.0L 32V

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Message: 2
Date: Tue, 4 May 2010 21:59:38 -0400
From: <johnfolger at earthlink.net>
Subject: [W126 Coupe] W126 A/C question?
To: <mbcoupes at mbcoupes.com>
Message-ID: <064a01caebf6$9e748900$db5d9b00$@net>
Content-Type: text/plain; charset="us-ascii"


I have come to expect terrific advice from this experienced group, since I
have now stumped 3 mechanics, spent over $2500, and still no solution. My
1988 560 SEC used to have good A/C. It was changed a couple of years ago
from R12. The system lost pressure after a couple of months, and hasn't
acted right for the last 2 years. The initial problem was that the Cold air
would switch to heat for no apparent reason. It was suggested that a new
mono valve, which helped for a while. I think I recall that with the A/C
setting on high and the high speed fan switched on, it would go into max,
which it no longer does. I have put in a new controller and new compressor
with no real improvement. My fancy shop recommended that I replace the
evaporator for about $2500, but they didn't bother to mention Cryo-seal,
which I just put in for about $200 bucks. I want to replace the dash later,
so I was looking for a reasonable fix. The A/C now works, but is not cold,
unless I'm running at highway speeds. I'm told that it could take a week of
running for the Cryo-seal to get up to speed. I'm really baffled here team,
can anyone advise? 

I took the car to one specialty A/C shop and the mechanic told be the
compressor was stuck-only problem was he was pointing to the pump!!!LOL
Also-Can you still buy rear wide body AMG style panels anywhere? How about
Rocarro seats?
Thanks in advance for any advice.

John
  
  

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Message: 3
Date: Tue, 4 May 2010 22:05:54 -0400
From: Markus Meyer <markusfmeyer at gmail.com>
Subject: Re: [W126 Coupe] W126 A/C question?
To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
Message-ID:
	<m2i4746a9c41005041905r4d5ee0c3q7ac46f3cc2fa869b at mail.gmail.com>
Content-Type: text/plain; charset="windows-1252"

Sounds like the frustrations I went through with my SEC a/c after I first
bought it.  In my case the a/c manifold hose was clogged and kept killing
compressors.  I haven't heard much good with switching from R12 in these
cars.  You have to make sure the right amount of oil and freon is in there
for starters, that your expansion valve isn't clogged, and that the
receiver/dryer is replaced along with the compressor when the job is done.
How about the high/low pressure switches?  They should be able to hook up
gauges to see what is going on.  Might be time to find another a/c shop like
I did.

There's a guy on benzworld in the 126 forum (48hp) who is having widebody
panels made from ones he just cut off a wrecked carcass he bought.  Should
be available soon.  You might want to search there and read up on it, look
for Widebody - Rise of the Phoenix or a posting along those lines.

Good luck!
Markus

On Tue, May 4, 2010 at 9:59 PM, <johnfolger at earthlink.net> wrote:


>  I have come to expect terrific advice from this experienced group, sinceI

have now stumped 3 mechanics, spent over $

> 2500, and still no solution. My 1988 560 SEC used to have good A/C. It was

> changed a couple of years ago from R12. The system lost pressure after a

> couple of months, and hasn?t acted right for the last 2 years. The initial

> problem was that the Cold air would switch to heat for no apparent reason.

> It was suggested that a new mono valve, which helped for a while. I think

> I recall that with the A/C setting on high and the high speed fan switched

> on, it would go into max, which it no longer does. I have put in a new

> controller and new compressor with no real improvement. My fancy shop

> recommended that I replace the evaporator for about $2500, but they didn?t

> bother to mention Cryo-seal, which I just put in for about $200 bucks. I

> want to replace the dash later, so I was looking for a reasonable fix. The

> A/C now works, but is not cold,  unless I?m running at highway speeds. I?m

> told that it could take a week of running for the Cryo-seal to get up to

> speed. I?m really baffled here team, can anyone advise?

>

> I took the car to one specialty A/C shop and the mechanic told be the

> compressor was stuck-only problem was he was pointing to the pump!!!LOL

>

> Also-Can you still buy rear wide body AMG style panels anywhere? How about

> Rocarro seats?

>

> Thanks in advance for any advice.

>

> John

>

> *******  *

>

> * *

>

>

> The MB Coupes Website!

> W126 SEC Mailing List

> Postings remain property of MB Coupes, L.L.C.

>

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Message: 4
Date: Wed, 5 May 2010 02:24:04 +0000
From: "jonathan" <jhodgman at gmail.com>
Subject: Re: [W126 Coupe] W126 A/C question?
To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>
Message-ID:
	
<1863434705-1273026242-cardhu_decombobulator_blackberry.rim.net-79912476- at bd
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Content-Type: text/plain

W/o having the car to play with and test it's tough to say...  No real
reason to throw parts @ these cars, the diagnostic trees are Pretty Good...

I'd like to know what high/low side pressure are @ idle and 2500RPM..  I'd
like to test all the actuators, test the mono valve..  Who rebuilt your push
button?  Hopefully not programa...

As for panels, they are most def NLA...
I have a set of blue recaro ideal c's comp w/ 126 rails etc...  
Drop an email if you are interested.

Jonathan
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: <johnfolger at earthlink.net>
Date: Tue, 4 May 2010 21:59:38 
To: <mbcoupes at mbcoupes.com>
Subject: [W126 Coupe] W126 A/C question?

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Postings remain property of MB Coupes, L.L.C.



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Message: 5
Date: Wed, 05 May 2010 07:49:53 -0400
From: Dick Spellman <dick.spellman at gmail.com>
Subject: Re: [W126 Coupe] W126 A/C question?
To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
Message-ID: <4BE15B61.8070007 at gmail.com>
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Message: 6
Date: Wed, 5 May 2010 09:15:16 -0400
From: Markus Meyer <markusfmeyer at gmail.com>
Subject: Re: [W126 Coupe] W126 A/C question?
To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
Message-ID:
	<i2h4746a9c41005050615p88858898oecc4747d9b8184b5 at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"


>

> ...  Are the visco clutch and aux fans working as they should?  Report

back

> with coolant temp readings after sitting in drive at idle for 5 minutes or

> so....

>


Dick brings up a great point.  The rest of the system can be A-OK, but if
the aux fan in front of the radiator isn't working, it won't cool right
either.  Check and make sure that is on when you turn the a/c on (compressor
engaged).

Markus
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