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C-Rod
Veteran
Date registered: Apr 2006
Location: Guelph, Ontario.
Vehicle(s): 2006 ML 350
Posts: 158
| Wolfgang or Peter........
Would you guys be able to explain to me what the "heater box to the seal" is........Apparently with the A-pillar noises,(TSB"S) there is some issue about this.....Where is this located (heater box) and would either one of you have pictures of it....This ticking is trying me crazy....l have already put felt where the windshield cowl meets the windshield, but that didn't help.........l would like to see if this would help...Thanks.. |
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Wolfgang
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: Wolfgang or Peter........
C-Rod - 7/12/2006 7:25 PM
Would you guys be able to explain to me what the "heater box to the seal" is........Apparently with the A-pillar noises,(TSB"S) there is some issue about this.....Where is this located (heater box) and would either one of you have pictures of it....This ticking is trying me crazy....l have already put felt where the windshield cowl meets the windshield, but that didn't help.........l would like to see if this would help...Thanks..
Seals are number 26 in the second pic.
 (ac1.gif)
 (ac2.gif)
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Attachments
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 ac1.gif (42KB - 8 downloads)
ac2.gif (27KB - 6 downloads)
ac3.gif (22KB - 4 downloads)
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AndrewAZ
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: Wolfgang or Peter........
C-Rod - 7/12/2006 7:25 PM
Would you guys be able to explain to me what the "heater box to the seal" is........Apparently with the A-pillar noises,(TSB"S) there is some issue about this.....Where is this located (heater box) and would either one of you have pictures of it....This ticking is trying me crazy....l have already put felt where the windshield cowl meets the windshield, but that didn't help.........l would like to see if this would help...Thanks..
Would this problem cause the A pillar glue to fail? any way i can pin it to this TSB... |
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Wolfgang
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: Wolfgang or Peter........
AndrewAZ - 7/12/2006 9:26 PM
Would this problem cause the A pillar glue to fail? any way i can pin it to this TSB...
I suspect it's not related.
BTW, my 1999 ML320 is rather quiet inside, and in fact I dont remember hunting for any noises... But I noticed it has some small pieces of felt stuck in many places, and some kind of white powder around some parts of the dash etc etc. Therefore I suspect my ML received a full noise abatement treatment early on in its life probably when I dropped it off for some warranty service. Might have been performed by the same clever technician who did the door seal enhancement etc. Since that was a warranty repair which paid rather well, I do remember how eager they were at the time to do it.... 
Edited by Wolfgang 7/13/2006 3:43 AM
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MADSLEG
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Wolfgang or Peter........
And what is #s 53 and 56 on first picture ???
I think this is a part that i have to replace to fix clicking sound in my dashboard vents............... |
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Wolfgang
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Wolfgang or Peter........
MADSLEG - 7/13/2006 10:53 AM
And what is #s 53 and 56 on first picture ???
I think this is a part that i have to replace to fix clicking sound in my dashboard vents...............
That's the electric motor and linkage for the air mix damper door. I suppose if the feed back potentiometer doesn't read the position correctly the motor keeps trying to readjust the position of the door. Might this have caused your clicking?
Air Mix Damper Door
The mechanical door is controlled by a linkage from the servo electric motor. The door covers/uncovers the air passage through the heater core to mix heated and cool air in correct proportion needed to achieve desired interior temperature. A feed back potentiometer sends a signal to N19 (controller) for door position.
from http://www.whnet.com/4x4/climate.html
Edited by Wolfgang 7/13/2006 3:47 PM
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MADSLEG
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Wolfgang or Peter........
You 100% right- feed back potentiometer doesn't read the position correctly the motor keeps trying to readjust the position of the door,that is why it makes that cliking noice.So what do i have to replace to fix it ?
And part # if you can find it.Its getting VERY HOT here in Florida :((( |
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Wolfgang
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Wolfgang or Peter........
MADSLEG - 7/13/2006 3:07 PM
You 100% right- feed back potentiometer doesn't read the position correctly the motor keeps trying to readjust the position of the door,that is why it makes that cliking noice.So what do i have to replace to fix it ?
And part # if you can find it.Its getting VERY HOT here in Florida :(((
Part number for the electric motor is 163 820 01 08. And for the lever 163 830 01 33.
I would only replace them if you can find a mechanical fault like a worn bearing or some such. Otherwise it might be less expensive to have a dealer diagnose exactly what is wrong by connecting the StardiagnosisSystem and then replace only the faulty component.
The A/C control module receives input information from the following devices:
Air conditioning switch.
Interior air temperature sensor (NTC resistor below low range switch).
Temperature selector control.
Blower switch control.
Evaporator temperature sensor.
Air mixture flap door position signal.
The A/C Control Module sends control signals to the following devices:
Air mix damper door motor.
AAM (N10).
Fresh/Recirculation (FRS/REC) door motor.
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pleubner
Date registered: Apr 2006
Location: Basel, Switzerland
Vehicle(s): ML270CDI Brabus-W163,SL55 AMG-R230,ML320 CDI-W164
| RE: Wolfgang or Peter........
Hey .... Must have missed this .... will read everthing more closely when I get back!.... |
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pleubner
Date registered: Apr 2006
Location: Basel, Switzerland
Vehicle(s): ML270CDI Brabus-W163,SL55 AMG-R230,ML320 CDI-W164
| RE: Wolfgang or Peter........
Just got back from hols .... what did C-ROD do about the TSB?..... Has it stopped the clicking?..... hey C_ROD , parcel just arrived! .... but I need a little help from your side to pry the thing loose from customs .... sent you a PM!.... |
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MADSLEG
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Wolfgang or Peter........
C ROD
any updates ? |
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C-Rod
Veteran
Date registered: Apr 2006
Location: Guelph, Ontario.
Vehicle(s): 2006 ML 350
Posts: 158
| Re: Wolfgang or Peter........
Hello.........This is the situation.....The heater box seal removed and replaced will run me about $1200.00 dollars..l don't think so....The funny thing has been that the sound has diminished during the winter...l'm assuming because my heater is always on, it must have softened the seal so as not to squeak, but l'm sure as the summer time comes and the seal dries out, it will start again...To be honest, l just finished paying it off..so l may start looking around...l've grown tired of the little things........"Ridiculous"...........  |
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