[W126 Coupe] MBCOUPES Digest, Vol 71, Issue 24

[drhpat at aol.com]

Anyone know where a new door seal for a 91' SEC could be obtained?

I've tryed for a year and everyone states that "they quit making it".
I suppose whoever made it for Mercedes.

Thanks
Dr H
91 560 SEC
87 560 SEC
87 560 SEL





-----Original Message-----
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To: mbcoupes <mbcoupes at mbcoupes.com>
Sent: Mon, May 24, 2010 11:22 am
Subject: MBCOUPES Digest, Vol 71, Issue 24


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oday's Topics:
   1. Re: 560 SEC Cutting Out (jay manek)
  2. FW:  560 SEC Cutting Out (jay manek)

---------------------------------------------------------------------
Message: 1
ate: Sun, 23 May 2010 17:08:11 +0000
rom: jay manek <jaymanek at hotmail.com>
ubject: Re: [W126 Coupe] 560 SEC Cutting Out
o: <jhodgman at gmail.com>, <mbcoupes at mbcoupes.com>
essage-ID: <BLU103-W388ED6F5307A22C84F27DD1E60 at phx.gbl>
ontent-Type: text/plain; charset="iso-8859-1"

i Jonathan & Group...
 
I think you are hitting the nail with the below statement. 
 
I changed the OVP last week and the car behaved for a while... I did a 50 mile 
ourney without it cutting out once. Then on the way back, same problems.. 
By shorting out pins 15 & 37 on the FPR, the fuel pump runs constantly and then 
 do not get the problem at all. 
 
Looking at the relay, there is indeed a pin labelled "TD"... So this HAS to be 
he cause.. makes perfect sence, the problem only occurs at low revs and so 
here must be a weak signal somewhere here.
 
So you mention changing the coil.. is this where the TD signal comes from? I 
ave a donor 560 so parts not an issue. 
 
I see a wire from the EZL that seperates into two and goes down onto the engine 
lock somewhere... Is this not also a TD signal? 
Also when I ordered the crank sensor from MB, the initially supplied me with a 
TDC sender" and I cant figure out where this goes at all... It just looks like 
 probe with a 3 pin connector. 
 
Thanks for the help.. I feel we are getting closer to nailing this. 



ate: Sat, 15 May 2010 13:42:22 -0400
rom: blueridgemb at gmail.com
o: mbcoupes at mbcoupes.com
ubject: Re: [W126 Coupe] 560 SEC Cutting Out
interesting, well, the FPR requires a signal (TD) from the coil to tell the car 
hat ignition is firing and to keep the fuel pumps engaged..  You may chck the 
oil, verify the grounds are good/connections are tight etc..
ight even drop in a spare coil if you have one handy.

onathan
Jay Manek wrote: 
Hi,

he car starts instantly, sometimes stalls again but then normally on the second 
ttempt will be fine. 

m pretty sure something is telling the fuel to shut off.. when the problem 
irst occured, nothing would start the car unless i jumped the pins on the fuel 
elay... the car had no issue if pins 15 and 47 were jumped... 




any Thanks & Regards

ay Manek | www.mercland.com| 07716 349949


rom: Jonathan Hodgman 
ent: Saturday, May 15, 2010 6:13 PM
o: Mercedes Coupes Mailing Lists 
ubject: Re: [W126 Coupe] 560 SEC Cutting Out
so is it re-starting straight away?  The big question is are we fuel or spark...  

r, if a bad sensor is telling the car that it's rev'ing too high and the ICU is 
hutting the ICV..
jono
ay Manek wrote: 

Hi guys,

ell i swapped Crank Sensor and the EZL... at first I thought id got it as one 
f the connections was green...but just getting the car out of the garage and it 
talled on me.

ts getting pretty annoying! Any ideas guys? 


 ordered a crank sensor from mercedes but they sent me the TDC sender instead.. 
hen i told them, they said a new crank sensor was over ?200 GBP.. so i swapped 
oth the EZL and crank sensor from my donor car. 
o any idea where this TDC sender goes? Its a probe, looks like the crank sensor 
nd the other end has a 3 pin rectangular connector... may as well change it now 
ve paid for it!


any Thanks & Regards

ay Manek 


rom: Axel Wulff 
ent: Monday, May 10, 2010 1:04 PM
o: mbcoupes at mbcoupes.com 
ubject: Re: [W126 Coupe] 560 SEC Cutting Out
Jay,

bout the cutting in and out; have you checked the EZL?

ot a part that seems to fail a lot on the M117, but I've had a lot of EZL 
ssues with the M119 engine in my car and those are the exact symptoms.
Regards,
xel J. Wulff
10-731-5453 Cellular
10-572-4611 Home

 

rom: jaymanek at hotmail.com
o: mbcoupes at mbcoupes.com
ate: Mon, 10 May 2010 12:37:45 +0100
ubject: [W126 Coupe] 560 SEC Cutting Out

i All,

k im struggling with my 560 SEC.. 

asically it just cuts out at low revs.. it will idle for hours without an issue 
ut when driving it cuts out when approaching a junction.. sometimes when 
pproaching a junction at low speed and other times just when pulling away..

 have swapped the Idle control unit and Fuel Pump Relay.. but no difference... 

hen this first started happening, the car would not restart and the fuel pump 
ould not run, I had to jumper the pins (i think 15 and 47?) to get the fuel 
ump to run so I could get home.. It did this even with the brand new relay... 
ut recently it seems to restart immediately... 

ELP!!



any Thanks & Regards

ay Manek 

 
The MB Coupes Website!
126 SEC Mailing List
ostings remain property of MB Coupes, L.L.C. 
he MB Coupes Website!
126 SEC Mailing List
ostings remain property of MB Coupes, L.L.C.
-- 
onathan Hodgman
lue Ridge Mercedes/AMG East
ttp://www.blueridgemb.com
ffering Enthusiast Service, Restoration and Tuning.
404)805-1357
7 C36
6 S600 Euro
4 E420 (Parts)
3 300SE
3 500E (Parts)
1 E300D 2.5
1 560SEC ECE
1 500SL Jap Spec
1 560SEC 226/271
0 300SL
8 300E AMG
9 190E 2.6 5sp
9 300TE 
8 560SEC AMG Euro ECE (Parts)
9 560SEC AMG 6.0L SOHC Solid Lifter
7 AMG Hammer Wagon 6.0L 32V
7 AMG Hammer 6.0L 32V
6 560SEL AMG 6.0L 32V

The MB Coupes Website!
126 SEC Mailing List
ostings remain property of MB Coupes, L.L.C. 
he MB Coupes Website!
126 SEC Mailing List
ostings remain property of MB Coupes, L.L.C.
-- 
onathan Hodgman
lue Ridge Mercedes/AMG East
ttp://www.blueridgemb.com
ffering Enthusiast Service, Restoration and Tuning.
404)805-1357
7 C36
6 S600 Euro
4 E420 (Parts)
3 300SE
3 500E (Parts)
1 E300D 2.5
1 560SEC ECE
1 500SL Jap Spec
1 560SEC 226/271
0 300SL
8 300E AMG
9 190E 2.6 5sp
9 300TE 
8 560SEC AMG Euro ECE (Parts)
9 560SEC AMG 6.0L SOHC Solid Lifter
7 AMG Hammer Wagon 6.0L 32V
7 AMG Hammer 6.0L 32V
6 560SEL AMG 6.0L 32V 		 	   		  
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Message: 2
ate: Sun, 23 May 2010 19:36:58 +0000
rom: jay manek <jaymanek at hotmail.com>
ubject: [W126 Coupe] FW:  560 SEC Cutting Out
o: <jhodgman at gmail.com>, <mbcoupes at mbcoupes.com>
essage-ID: <BLU103-W28408D1824A38A9E705002D1E60 at phx.gbl>
ontent-Type: text/plain; charset="iso-8859-1"

i All,
 
 
Following on from the below, i decided to go out and swap the coils as 
uggested.
 
Unfortunately this made no difference, the car cut out as soon as i started 
t...
 
However, I have gotten a step closer:
The problem is caused by the throttle pedal somehow..
I brushed the accelerator with my foot (not enough to depress it) and the fuel 
ump kicked in for a second... I then touched the accelerator with my hand and 
ure enough the fuel pump would actuate with every touch... 
So I thought, easy.. there is a wire or something rubbing on the linkage 
omewhere... I checked the whole system from inside the car, through the 
irewall and to the engine.. There is nothing obvious.. 
I could not make the fault re occur so couldnt diagnose which part of the 
inkage etc is causing the problem... 
 
So my question is.. is there an electrical connection from throttle linkage (or 
aybe something associated to it) and the FPR?
 
I adjusted up some slack in the linkage to see if that cures it. 
 
My suspicion now heads to the thing that looks like some kind of throttle 
osition sender as the insulation on the wiring to it is badly cracked.. 
 
any thoughts? 
 
 

rom: jaymanek at hotmail.com
o: jhodgman at gmail.com; mbcoupes at mbcoupes.com
ubject: RE: [W126 Coupe] 560 SEC Cutting Out
ate: Sun, 23 May 2010 17:08:11 +0000

Hi Jonathan & Group...

 think you are hitting the nail with the below statement. 

 changed the OVP last week and the car behaved for a while... I did a 50 mile 
ourney without it cutting out once. Then on the way back, same problems.. 
y shorting out pins 15 & 37 on the FPR, the fuel pump runs constantly and then 
 do not get the problem at all. 

ooking at the relay, there is indeed a pin labelled "TD"... So this HAS to be 
he cause.. makes perfect sence, the problem only occurs at low revs and so 
here must be a weak signal somewhere here.

o you mention changing the coil.. is this where the TD signal comes from? I 
ave a donor 560 so parts not an issue. 

 see a wire from the EZL that seperates into two and goes down onto the engine 
lock somewhere... Is this not also a TD signal? 
lso when I ordered the crank sensor from MB, the initially supplied me with a 
TDC sender" and I cant figure out where this goes at all... It just looks like 
 probe with a 3 pin connector. 

hanks for the help.. I feel we are getting closer to nailing this. 
 

ate: Sat, 15 May 2010 13:42:22 -0400
rom: blueridgemb at gmail.com
o: mbcoupes at mbcoupes.com
ubject: Re: [W126 Coupe] 560 SEC Cutting Out
interesting, well, the FPR requires a signal (TD) from the coil to tell the car 
hat ignition is firing and to keep the fuel pumps engaged..  You may chck the 
oil, verify the grounds are good/connections are tight etc..
ight even drop in a spare coil if you have one handy.

onathan
Jay Manek wrote: 
Hi,

he car starts instantly, sometimes stalls again but then normally on the second 
ttempt will be fine. 

m pretty sure something is telling the fuel to shut off.. when the problem 
irst occured, nothing would start the car unless i jumped the pins on the fuel 
elay... the car had no issue if pins 15 and 47 were jumped... 




any Thanks & Regards

ay Manek | www.mercland.com| 07716 349949


rom: Jonathan Hodgman 
ent: Saturday, May 15, 2010 6:13 PM
o: Mercedes Coupes Mailing Lists 
ubject: Re: [W126 Coupe] 560 SEC Cutting Out
so is it re-starting straight away?  The big question is are we fuel or spark...  

r, if a bad sensor is telling the car that it's rev'ing too high and the ICU is 
hutting the ICV..
jono
ay Manek wrote: 

Hi guys,

ell i swapped Crank Sensor and the EZL... at first I thought id got it as one 
f the connections was green...but just getting the car out of the garage and it 
talled on me.

ts getting pretty annoying! Any ideas guys? 


 ordered a crank sensor from mercedes but they sent me the TDC sender instead.. 
hen i told them, they said a new crank sensor was over ?200 GBP.. so i swapped 
oth the EZL and crank sensor from my donor car. 
o any idea where this TDC sender goes? Its a probe, looks like the crank sensor 
nd the other end has a 3 pin rectangular connector... may as well change it now 
ve paid for it!


any Thanks & Regards

ay Manek 


rom: Axel Wulff 
ent: Monday, May 10, 2010 1:04 PM
o: mbcoupes at mbcoupes.com 
ubject: Re: [W126 Coupe] 560 SEC Cutting Out
Jay,

bout the cutting in and out; have you checked the EZL?

ot a part that seems to fail a lot on the M117, but I've had a lot of EZL 
ssues with the M119 engine in my car and those are the exact symptoms.
Regards,
xel J. Wulff
10-731-5453 Cellular
10-572-4611 Home

 

rom: jaymanek at hotmail.com
o: mbcoupes at mbcoupes.com
ate: Mon, 10 May 2010 12:37:45 +0100
ubject: [W126 Coupe] 560 SEC Cutting Out

i All,

k im struggling with my 560 SEC.. 

asically it just cuts out at low revs.. it will idle for hours without an issue 
ut when driving it cuts out when approaching a junction.. sometimes when 
pproaching a junction at low speed and other times just when pulling away..

 have swapped the Idle control unit and Fuel Pump Relay.. but no difference... 

hen this first started happening, the car would not restart and the fuel pump 
ould not run, I had to jumper the pins (i think 15 and 47?) to get the fuel 
ump to run so I could get home.. It did this even with the brand new relay... 
ut recently it seems to restart immediately... 

ELP!!



any Thanks & Regards

ay Manek 

 
The MB Coupes Website!
126 SEC Mailing List
ostings remain property of MB Coupes, L.L.C. 
he MB Coupes Website!
126 SEC Mailing List
ostings remain property of MB Coupes, L.L.C.
-- 
onathan Hodgman
lue Ridge Mercedes/AMG East
ttp://www.blueridgemb.com
ffering Enthusiast Service, Restoration and Tuning.
404)805-1357
7 C36
6 S600 Euro
4 E420 (Parts)
3 300SE
3 500E (Parts)
1 E300D 2.5
1 560SEC ECE
1 500SL Jap Spec
1 560SEC 226/271
0 300SL
8 300E AMG
9 190E 2.6 5sp
9 300TE 
8 560SEC AMG Euro ECE (Parts)
9 560SEC AMG 6.0L SOHC Solid Lifter
7 AMG Hammer Wagon 6.0L 32V
7 AMG Hammer 6.0L 32V
6 560SEL AMG 6.0L 32V

he MB Coupes Website!
126 SEC Mailing List
ostings remain property of MB Coupes, L.L.C. 
he MB Coupes Website!
126 SEC Mailing List
ostings remain property of MB Coupes, L.L.C.
-- 
onathan Hodgman
lue Ridge Mercedes/AMG East
ttp://www.blueridgemb.com
ffering Enthusiast Service, Restoration and Tuning.
404)805-1357
7 C36
6 S600 Euro
4 E420 (Parts)
3 300SE
3 500E (Parts)
1 E300D 2.5
1 560SEC ECE
1 500SL Jap Spec
1 560SEC 226/271
0 300SL
8 300E AMG
9 190E 2.6 5sp
9 300TE 
8 560SEC AMG Euro ECE (Parts)
9 560SEC AMG 6.0L SOHC Solid Lifter
7 AMG Hammer Wagon 6.0L 32V
7 AMG Hammer 6.0L 32V
6 560SEL AMG 6.0L 32V 		 	   		  
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The MB Coupes Website!
126 SEC Coupes
ostings remain property of MB Coupes, L.L.C.
End of MBCOUPES Digest, Vol 71, Issue 24
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