[diesel_mercedes] Re: SD heaating or lack thereof

 

You could check to see if the fan motor is receiving voltage. If so, maybe it needs brushes. (?) If it's not getting voltage, I think there is probably a relay somewhere. You could check to see if that's getting voltage and if so, if it's sending it out the way it is supposed to. But I don't know what pins go where.

Jim

--- In diesel_mercedes@yahoogroups.com, Alan Boucher <alstheone@...> wrote:
>
> It's that time of year again when evil things happen to the hvac
> system.. My 83 SD button box doesn't produce any results. Pushing the
> defrost button at any time doesn't start the blower. I've checked the
> fuses. What is the next rational step in troubleshooting. I have the
> shop manual and wiring diagrams. In the past I've found this group an
> easy alternative to rational thought. I'd appreciate any suggestions to
> make things easier.
>
> Al Boucher
>

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Re: [diesel_mercedes] 83 300SD Hazard Switch Removal and Repair Q's

 

Consider taking all of the switches out and cleaning them if you are removing the console cover. Lot of crud and grime get in those electrical parts. Lots of little springs and BB's can pop loose too, and are hard to find on the floor. Easy to do, just go slow. I used nail polish remover to clean with, but  other cleaners work too.
 
brian from la verne, ca
From: CaitlinDean <tinymachine@gmail.com>
To: diesel_mercedes@yahoogroups.com
Sent: Tuesday, November 15, 2011 6:21 PM
Subject: [diesel_mercedes] 83 300SD Hazard Switch Removal and Repair Q's

 
So, I'm aiming to take out my hazard switch and give it a good cleaning since I think that may be the source of these 2 symptoms:

1) turn signals light up - on dash cluster and at the exterior bulbs - but they don't blink (in either place)

2) hazard lights up all the turn signal bulbs, but they don't "flash"/blink

PO was supposed to deliver a "new" hazard switch, haven't heard from her in a month. I know they're cheap, but my budget is pretty darn tight right now, so I'd rather save my $ for things like a new voltage regulator ;) IF I can fix the problem with no money. Worth a shot.

I removed the ashtray + coin tray
(I also removed the panel around my shifter and gave that and all switches a good cleaning!)

...and then I got stuck at the radio. I don't want to pay money for removal keys if I don't have to...I have an aftermarket Alpine head unit in there...any tips for free removal? Or can I get the upper switch panel out without removing the radio?

Thanks,
Caitlin
Santa Fe



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[diesel_mercedes] Re: 83 300SD Instrument Cluster (Phase 1)

 

Ben, sounds messy ;)

Caitlin

--- In diesel_mercedes@yahoogroups.com, "bgiovan@..." <bgiovan@...> wrote:
>
> Careful on disconnecting the oil pressure gauge unless you like motor
> oil squirting on your shoes. While you're driving. Ask me how I know.
>
> Ben near Detroit.
>
> On 11/15/2011 4:43 PM, CaitlinDean wrote:
> >
> > I confirmed that indeed the gauge is stuck as high as it goes when the
> > cluster is merely plugged in (no key in ignition, car obvi not
> > running, etc) at all times.
> >
> > I'm not totally sure what to look for other than brown wires that have
> > "loose connections" and tighten them...and maybe bare wires too...
> >
> > My electrical gremlin count is growing and I still haven't even
> > found/fixed one...(ok, that's cuz I'm sort of avoiding them)
> >
> > Good to know I can shoot for 130MPH ;) despite what the speedo
> > says...but the one that goes higher was orig to the car and at least i
> > have a spare for if/when I send out mine for repair.
> >
> > Gonna go check the voltage regulator (as suggested) and also see if I
> > can't rejuvenate my hazard switch in hopes of restoring signals (they
> > light, inside and out, but don't blink). While after the hazard, I
> > hope to check and dig around in the wiring behind the console in hopes
> > of finding gremmies.
> >
> > Caitlin
> > Santa Fe
> >
> > --- In diesel_mercedes@yahoogroups.com
> > <mailto:diesel_mercedes%40yahoogroups.com>, "Nate" <vwnate1@> wrote:
> > >
> > >
> > > OBTW :
> > >
> > > The speedo stops @ 85 MPH but the _car_ will top 130 MPH once it's
> > running well .
> > >
> > > -Nate
> > > Caitlin wrote:
> > > >
> > > > When I got Betty, I knew the odometer wasn't working. When I drove
> > her home after picking her up, it was dark and torrential rain (not
> > common in these dry parts) and so I discovered that the left half of
> > the cluster was too dark to see and the left turn signal light was out.
> > > >
> > > > I've since noticed that the oil pressure gauge always reads the
> > highest and never moves. The clock doesn't work (ok, who cares) and
> > the tach jiggles. And the kicker is that the speedo only goes up to
> > 85MPH (as in, that's the highest mark that's on the gauge face). All
> > other warning lights seem to be just fine.
> > > >
> > > > Luckily the PO included what was theoretically the original
> > cluster and today I dug into some troubleshooting and minor fixes
> > after I performed my very first oil change. Ever. (Messy, but it feels
> > good)
> > > >
> > > > Between the 2 clusters and some new bulbs I was able to
> > > >
> > > > * fix the missing lighting on the left side of the cluster
> > > > * fix the left turn signal light
> > > > * install the original speedo (also broken)
> > > > * used the "better" potentiometer until I can spring for a new one
> > > >
> > > > So the lights and bulbs are all working and I can see it at
> > night...yay!
> > > >
> > > > Here's what's left...
> > > >
> > > > * speedometer definitely broken beyond my skills...the gears are
> > broken (missing teeth etc)
> > > > * tach jiggle...gonna check the amp since it jiggled with both
> > clusters
> > > > * oil pressure...also busted with both clusters, when plugged in
> > both read 3 (highest)
> > > > * new potentiometer
> > > >
> > > > QUESTIONS:
> > > >
> > > > 1) Oil Pressure ... is my problem likely the oil pressure sensor?
> > Is this the same as the Oil Pressure "switch"? Any other
> > troubleshooting to do to really find the problem?
> > > >
> > > > 2) The speedo I took out, that only has markings for up to about
> > 85MPH (140km) has a part number: 126 542 44 01 ... what car does this
> > go to? I tried searching, no luck.
> > > >
> > > > 3) For speedometer fixing...who do you recommend? I requested a
> > quote from speedometer.com
> > > >
> > > >
> > > > Thanks!
> > > > Caitlin
> > > > Santa Fe
> > > >
> > >
> >
> >
>

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[diesel_mercedes] 83 300SD Hazard Switch Removal and Repair Q's

 

So, I'm aiming to take out my hazard switch and give it a good cleaning since I think that may be the source of these 2 symptoms:

1) turn signals light up - on dash cluster and at the exterior bulbs - but they don't blink (in either place)

2) hazard lights up all the turn signal bulbs, but they don't "flash"/blink

PO was supposed to deliver a "new" hazard switch, haven't heard from her in a month. I know they're cheap, but my budget is pretty darn tight right now, so I'd rather save my $ for things like a new voltage regulator ;) IF I can fix the problem with no money. Worth a shot.

I removed the ashtray + coin tray
(I also removed the panel around my shifter and gave that and all switches a good cleaning!)

...and then I got stuck at the radio. I don't want to pay money for removal keys if I don't have to...I have an aftermarket Alpine head unit in there...any tips for free removal? Or can I get the upper switch panel out without removing the radio?

Thanks,
Caitlin
Santa Fe

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[diesel_mercedes] 83 300SD Oil Pressure Gauge/Sensor

 

The gauge was stuck on "highest" even with the battery disconnected.

Took a peek near the sensor switch part at the bottom of the oil filter housing and found a dangling wire. Looks like it is the wire that is meant to connect into the rubber fitting that attaches to the oil pressure sensor switch.

Pretty sure this is my problem (pic in my "Betty and the Beginner" album), but exactly how do I fix it? Any tips? Hints? Instructions?

Remember, as new as I am to "car stuff", I'm even newer to "electrical" :)

Caitlin
Santa Fe

--- In diesel_mercedes@yahoogroups.com, "CaitlinDean" <tinymachine@...> wrote:
>
> I confirmed that indeed the gauge is stuck as high as it goes when the cluster is merely plugged in (no key in ignition, car obvi not running, etc) at all times.
>
> I'm not totally sure what to look for other than brown wires that have "loose connections" and tighten them...and maybe bare wires too...
>
> My electrical gremlin count is growing and I still haven't even found/fixed one...(ok, that's cuz I'm sort of avoiding them)
>
> Good to know I can shoot for 130MPH ;) despite what the speedo says...but the one that goes higher was orig to the car and at least i have a spare for if/when I send out mine for repair.
>
> Gonna go check the voltage regulator (as suggested) and also see if I can't rejuvenate my hazard switch in hopes of restoring signals (they light, inside and out, but don't blink). While after the hazard, I hope to check and dig around in the wiring behind the console in hopes of finding gremmies.
>
> Caitlin
> Santa Fe
>
> --- In diesel_mercedes@yahoogroups.com, "Nate" <vwnate1@> wrote:
> >
> >
> > OBTW :
> >
> > The speedo stops @ 85 MPH but the _car_ will top 130 MPH once it's running well .
> >
> > -Nate
> > Caitlin wrote:
> > >
> > > When I got Betty, I knew the odometer wasn't working. When I drove her home after picking her up, it was dark and torrential rain (not common in these dry parts) and so I discovered that the left half of the cluster was too dark to see and the left turn signal light was out.
> > >
> > > I've since noticed that the oil pressure gauge always reads the highest and never moves. The clock doesn't work (ok, who cares) and the tach jiggles. And the kicker is that the speedo only goes up to 85MPH (as in, that's the highest mark that's on the gauge face). All other warning lights seem to be just fine.
> > >
> > > Luckily the PO included what was theoretically the original cluster and today I dug into some troubleshooting and minor fixes after I performed my very first oil change. Ever. (Messy, but it feels good)
> > >
> > > Between the 2 clusters and some new bulbs I was able to
> > >
> > > * fix the missing lighting on the left side of the cluster
> > > * fix the left turn signal light
> > > * install the original speedo (also broken)
> > > * used the "better" potentiometer until I can spring for a new one
> > >
> > > So the lights and bulbs are all working and I can see it at night...yay!
> > >
> > > Here's what's left...
> > >
> > > * speedometer definitely broken beyond my skills...the gears are broken (missing teeth etc)
> > > * tach jiggle...gonna check the amp since it jiggled with both clusters
> > > * oil pressure...also busted with both clusters, when plugged in both read 3 (highest)
> > > * new potentiometer
> > >
> > > QUESTIONS:
> > >
> > > 1) Oil Pressure ... is my problem likely the oil pressure sensor? Is this the same as the Oil Pressure "switch"? Any other troubleshooting to do to really find the problem?
> > >
> > > 2) The speedo I took out, that only has markings for up to about 85MPH (140km) has a part number: 126 542 44 01 ... what car does this go to? I tried searching, no luck.
> > >
> > > 3) For speedometer fixing...who do you recommend? I requested a quote from speedometer.com
> > >
> > >
> > > Thanks!
> > > Caitlin
> > > Santa Fe
> > >
> >
>

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Re: [diesel_mercedes] motor mounts How to choose brand?

 

How long do you want them to last?
 
Tom Hanson
Mercedes Benz Classic Center USA
MBUSA, LLC
thomas.hanson@mbusa.com
949 598-4842 direct
949 598-4870 fax
From: Trish Dougherty <purrfectharmonyfarm@wifi45.com>
To: diesel_mercedes@yahoogroups.com
Sent: Tuesday, November 15, 2011 4:05 PM
Subject: [diesel_mercedes] motor mounts How to choose brand?

 
I spent the entire day online comparing motor mounts.  I can get 2 for $98 including shipping from Diesel Giant.  I saw them cheaper on some sites, and way more expensive on others.  This is an important part and a huge undertaking to get done.  I only want to deal with this once. 

How do I choose a brand? But how much to pay when prices vary so widely?


-
Trish Dougherty
PurrFect Harmony Farm
Ennis, TX
http:/purrfectharmonyfarm.intuitwebsites.com



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Re: [diesel_mercedes] motor mounts How to choose brand?

 

Trish - most of these parts come from the same manufacturers, and are shipped from common warehouses. Like perfume, the middle men get to add a "mark up" so be a prudent shopper. A motor mount is a pretty basic piece or metal and rubber. Like getting clothes from Ross and Marshalls, or from Pierre Cardin - sometimes the same people sew them, but everyone gets to put a label on. Personally, I get my t shirts from the local 3 for $10 Koreans. My wife gets my t shirts from Kohls.
 
brian from la verne, ca
From: Trish Dougherty <purrfectharmonyfarm@wifi45.com>
To: diesel_mercedes@yahoogroups.com
Sent: Tuesday, November 15, 2011 4:05 PM
Subject: [diesel_mercedes] motor mounts How to choose brand?

 
I spent the entire day online comparing motor mounts.  I can get 2 for $98 including shipping from Diesel Giant.  I saw them cheaper on some sites, and way more expensive on others.  This is an important part and a huge undertaking to get done.  I only want to deal with this once. 

How do I choose a brand? But how much to pay when prices vary so widely?


-
Trish Dougherty
PurrFect Harmony Farm
Ennis, TX
http:/purrfectharmonyfarm.intuitwebsites.com



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[diesel_mercedes] motor mounts How to choose brand?

 

I spent the entire day online comparing motor mounts.  I can get 2 for $98 including shipping from Diesel Giant.  I saw them cheaper on some sites, and way more expensive on others.  This is an important part and a huge undertaking to get done.  I only want to deal with this once. 

How do I choose a brand? But how much to pay when prices vary so widely?


-
Trish Dougherty
PurrFect Harmony Farm
Ennis, TX
http:/purrfectharmonyfarm.intuitwebsites.com

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Re: [diesel_mercedes] Re: 83 300SD Instrument Cluster (Phase 1)

Careful on disconnecting the oil pressure gauge unless you like motor
oil squirting on your shoes. While you're driving. Ask me how I know.

Ben near Detroit.

On 11/15/2011 4:43 PM, CaitlinDean wrote:
>
> I confirmed that indeed the gauge is stuck as high as it goes when the
> cluster is merely plugged in (no key in ignition, car obvi not
> running, etc) at all times.
>
> I'm not totally sure what to look for other than brown wires that have
> "loose connections" and tighten them...and maybe bare wires too...
>
> My electrical gremlin count is growing and I still haven't even
> found/fixed one...(ok, that's cuz I'm sort of avoiding them)
>
> Good to know I can shoot for 130MPH ;) despite what the speedo
> says...but the one that goes higher was orig to the car and at least i
> have a spare for if/when I send out mine for repair.
>
> Gonna go check the voltage regulator (as suggested) and also see if I
> can't rejuvenate my hazard switch in hopes of restoring signals (they
> light, inside and out, but don't blink). While after the hazard, I
> hope to check and dig around in the wiring behind the console in hopes
> of finding gremmies.
>
> Caitlin
> Santa Fe
>
> --- In diesel_mercedes@yahoogroups.com
> <mailto:diesel_mercedes%40yahoogroups.com>, "Nate" <vwnate1@...> wrote:
> >
> >
> > OBTW :
> >
> > The speedo stops @ 85 MPH but the _car_ will top 130 MPH once it's
> running well .
> >
> > -Nate
> > Caitlin wrote:
> > >
> > > When I got Betty, I knew the odometer wasn't working. When I drove
> her home after picking her up, it was dark and torrential rain (not
> common in these dry parts) and so I discovered that the left half of
> the cluster was too dark to see and the left turn signal light was out.
> > >
> > > I've since noticed that the oil pressure gauge always reads the
> highest and never moves. The clock doesn't work (ok, who cares) and
> the tach jiggles. And the kicker is that the speedo only goes up to
> 85MPH (as in, that's the highest mark that's on the gauge face). All
> other warning lights seem to be just fine.
> > >
> > > Luckily the PO included what was theoretically the original
> cluster and today I dug into some troubleshooting and minor fixes
> after I performed my very first oil change. Ever. (Messy, but it feels
> good)
> > >
> > > Between the 2 clusters and some new bulbs I was able to
> > >
> > > * fix the missing lighting on the left side of the cluster
> > > * fix the left turn signal light
> > > * install the original speedo (also broken)
> > > * used the "better" potentiometer until I can spring for a new one
> > >
> > > So the lights and bulbs are all working and I can see it at
> night...yay!
> > >
> > > Here's what's left...
> > >
> > > * speedometer definitely broken beyond my skills...the gears are
> broken (missing teeth etc)
> > > * tach jiggle...gonna check the amp since it jiggled with both
> clusters
> > > * oil pressure...also busted with both clusters, when plugged in
> both read 3 (highest)
> > > * new potentiometer
> > >
> > > QUESTIONS:
> > >
> > > 1) Oil Pressure ... is my problem likely the oil pressure sensor?
> Is this the same as the Oil Pressure "switch"? Any other
> troubleshooting to do to really find the problem?
> > >
> > > 2) The speedo I took out, that only has markings for up to about
> 85MPH (140km) has a part number: 126 542 44 01 ... what car does this
> go to? I tried searching, no luck.
> > >
> > > 3) For speedometer fixing...who do you recommend? I requested a
> quote from speedometer.com
> > >
> > >
> > > Thanks!
> > > Caitlin
> > > Santa Fe
> > >
> >
>
>


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[diesel_mercedes] Re: 83 300SD Instrument Cluster (Phase 1)

 

I confirmed that indeed the gauge is stuck as high as it goes when the cluster is merely plugged in (no key in ignition, car obvi not running, etc) at all times.

I'm not totally sure what to look for other than brown wires that have "loose connections" and tighten them...and maybe bare wires too...

My electrical gremlin count is growing and I still haven't even found/fixed one...(ok, that's cuz I'm sort of avoiding them)

Good to know I can shoot for 130MPH ;) despite what the speedo says...but the one that goes higher was orig to the car and at least i have a spare for if/when I send out mine for repair.

Gonna go check the voltage regulator (as suggested) and also see if I can't rejuvenate my hazard switch in hopes of restoring signals (they light, inside and out, but don't blink). While after the hazard, I hope to check and dig around in the wiring behind the console in hopes of finding gremmies.

Caitlin
Santa Fe

--- In diesel_mercedes@yahoogroups.com, "Nate" <vwnate1@...> wrote:
>
>
> OBTW :
>
> The speedo stops @ 85 MPH but the _car_ will top 130 MPH once it's running well .
>
> -Nate
> Caitlin wrote:
> >
> > When I got Betty, I knew the odometer wasn't working. When I drove her home after picking her up, it was dark and torrential rain (not common in these dry parts) and so I discovered that the left half of the cluster was too dark to see and the left turn signal light was out.
> >
> > I've since noticed that the oil pressure gauge always reads the highest and never moves. The clock doesn't work (ok, who cares) and the tach jiggles. And the kicker is that the speedo only goes up to 85MPH (as in, that's the highest mark that's on the gauge face). All other warning lights seem to be just fine.
> >
> > Luckily the PO included what was theoretically the original cluster and today I dug into some troubleshooting and minor fixes after I performed my very first oil change. Ever. (Messy, but it feels good)
> >
> > Between the 2 clusters and some new bulbs I was able to
> >
> > * fix the missing lighting on the left side of the cluster
> > * fix the left turn signal light
> > * install the original speedo (also broken)
> > * used the "better" potentiometer until I can spring for a new one
> >
> > So the lights and bulbs are all working and I can see it at night...yay!
> >
> > Here's what's left...
> >
> > * speedometer definitely broken beyond my skills...the gears are broken (missing teeth etc)
> > * tach jiggle...gonna check the amp since it jiggled with both clusters
> > * oil pressure...also busted with both clusters, when plugged in both read 3 (highest)
> > * new potentiometer
> >
> > QUESTIONS:
> >
> > 1) Oil Pressure ... is my problem likely the oil pressure sensor? Is this the same as the Oil Pressure "switch"? Any other troubleshooting to do to really find the problem?
> >
> > 2) The speedo I took out, that only has markings for up to about 85MPH (140km) has a part number: 126 542 44 01 ... what car does this go to? I tried searching, no luck.
> >
> > 3) For speedometer fixing...who do you recommend? I requested a quote from speedometer.com
> >
> >
> > Thanks!
> > Caitlin
> > Santa Fe
> >
>

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Re: [diesel_mercedes] OT pics of Mazatlan

 

Thanks for sharing the pics - looks like a fantastic place!
-Chris

From: Lost but making good time. <aldridgetony97@yahoo.com>
To: diesel_mercedes@yahoogroups.com
Sent: Tuesday, November 15, 2011 3:09 PM
Subject: [diesel_mercedes] OT pics of Mazatlan

 
Dunno if I should be posting these pics here, but we are having fun in the warm.

Some impressions of Mazatlan.
http://www.flickr.com/photos/technicotony/sets/72157628135870622/show/

Let me know if I should stop putting them up.

Took the Mercedes to a really good mechanic here in Mazatlan, gonna get him to pull some wrenches, valves, vac system, cruise etc. then gonna get the AC done and hopefully if you guys will send me some cash will get er painted.
Tony



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