[W126 Coupe] Hesitance on driving

Thu Aug 11 02:43:59 EDT 2005

I have drained my yellow top down to the point the door buzzer won't even
buzz anymore and charged the battery back up.  Have yet to find a decrease
in performance.

Eddie

-----Original Message-----
From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of jralex at ix.netcom.com
Sent: Wednesday, August 10, 2005 11:32 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Hesitance on driving

Thanks, I just called Optima today. The battery for us is the 34R. It is the
reverse pole version of 34. Both now have a red top. The orange color was
discontinued. I asked about a reverse pole in deep cycle, yellow top and he
said D35 but is physically smaller with about 25% less Amperage. He did
however suggest the deep cycle would be better for a car that sat for long
periods or one that had a lot of draw from non factory equipment such as
stereo's, etc. The reason being that it could be abused and recovered
repeatedly. Apparently starter/lighting batteries such as the red tops give
stronger cold crank power and are not designed to be drawn down much. they
operate within a narrow top level of charge and can be damaged if drained
too far too often. I have used both in a Caprice and cannot say which is
better but either is far, far better than anything else. By the way, Optima
does not catalog a battery for our cars probably because of our large tray.
MBcoupes archives revealed that our standard hold down will work fine. The
last white M benz battery I had in a 500 SEL sat maybe too long without use
And I could not figure why it was weak. My chargers showed full charge. My
Baldor tester said Good. The color ball testers said OK. I happen to have a
refractory that measures specific gravity of glycol(antifreeze) and battery
acid and found one cell bad. When batteries go bad it is usually caused by
sulphation. If it is undercharged or overcharged sulfate comes out of the
sulfuric acid solution adhereing to the lead plates reducing capacity. I
have a trickle charger that floats a one amp charge, then goes into a
de-sulfation mode of rapid micro pulses that is said to break loose the
sufate so it can go back into solution. They have plenty of emperical
evidence that it works. Popular Mechanics agreed. Bad batteries brought back
to life! If I follow the theory I do not  thinf it would work with a gel
type electrolyte as is used in Optimas. What I don't know about batteries is
shocking. Sorry--had to. Later, Jim Alexander

-----Original Message-----
From: David Fatovic <coloradocroat at yahoo.com>
Sent: Aug 10, 2005 10:15 AM
To: jralex at ix.netcom.com, Mercedes Coupes Mailing Lists
<mbcoupes at mbcoupes.com>
Subject: Re: [W126 Coupe] Hesitance on driving

I think it is the orange top.

David

--- jralex at ix.netcom.com wrote:

> I once new this but have forgotten which Optima
> battery to fit  the 560 Coupe. I think it is the
> 78/34R the R being for reverse pole position. Can
> somebody confirm or correct? What kind of battery
> hold down is used with the Optima? Thanks in
> advance. Jim Alexander
> 
> -----Original Message-----
> From: jralex at ix.netcom.com
> Sent: Aug 10, 2005 1:11 AM
> To: Mercedes Coupes Mailing Lists
> <mbcoupes at mbcoupes.com>
> Subject: Re: [W126 Coupe] Hesitance on driving
> 
> Talbir, Does the car have ASR traction control? I
> understand these can be problematic with differant
> diameter wheels  for instance. Now I could blame it
> on the steering wheel placement but this is no time 
> to joke, right. Jim Alexander
> 
> 
> 
> -----Original Message-----
> From: Dick Spellman <spell.yy at verizon.net>
> Sent: Aug 9, 2005 9:43 AM
> To: Mercedes Coupes Mailing Lists
> <mbcoupes at mbcoupes.com>
> Subject: Re: [W126 Coupe] Hesitance on driving
> 
> Hi Talbir:
> 
> You don't say if this problem existed before doing
> the work specified or if
> it has appeared immediately after the work???
> 
> Regards,
> 
> Dick
> ----- Original Message ----- 
> From: "Sharan Bains" <sharanbains at hotmail.com>
> To: <mbcoupes at mbcoupes.com>
> Sent: Tuesday, August 09, 2005 9:53 AM
> Subject: [W126 Coupe] Hesitance on driving
> 
> 
> > Been working on a friends car - 560SEC Euro.
> >
> > New HT leads, dizzy cap, rotor and new injectors.
> >
> > When driving along at 40mph+, constant speed of
> say 60mph, then there is a
> > hesitancy every 2 seconds....it's like someone's
> gently dabbing the brake
> > for a split second, as there is a deccelerating
> effect. This hesitancy
> > appears at any speed.
> >
> > I've swapped the coil for a known good one (from
> my own 560SEC) and
> problem
> > persists.
> >
> > It's almost like one of the cylinders is not
> getting enough delivery of
> fuel
> > (idle is slightly rough too), which suggests a bad
> fuel distributor.
> >
> > Any ideas ?
> >
> >
> > talbir
> >
> >
> > The MB Coupes Website!
> > W126 SEC Mailing List
> > Postings remain property of MB Coupes, L.L.C.
> >
> 
> The MB Coupes Website!
> W126 SEC Mailing List
> Postings remain property of MB Coupes, L.L.C.
> 
> The MB Coupes Website!
> W126 SEC Mailing List
> Postings remain property of MB Coupes, L.L.C.
> 
> The MB Coupes Website!
> W126 SEC Mailing List
> Postings remain property of MB Coupes, L.L.C.
> 

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