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W124 300D Center Vent Pod Replacement
So I appear to have lost my center vent air flow.
I pulled vacuum on the pod's vac line and got nothing. From what I can tell this pod lives inside the blower box and the entire dashboard has to come out for it to be changed. I just wanted to double check that with the good folks on the board here. I'm not sure how willing I am to do it myself. Might farm the job out to my shop...its probably a $500+ job in labor alone I think. Figure I'd be best to replace all the pods at the same time?
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Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
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Gut it where center vents are open all the time and never look back. You can use the manual adjustment if you want to close it off.
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Jim |
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Is there any way that I can do that without removing the dash? I would say no.
I agree with gutting it. I would much prefer it that way. I had that pod tied to constant vacuum (which might have accelerated its undoing) and enjoyed having heat out of it in the winter time.
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
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My 91 works fine, my 92 works most of the time....sometimes I have to whack the dash!
Still amazes me that MB engineers designed it up this way.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
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Once upon a time (before swapping out the ACC for a manual system) I propped the flap open with a wine cork - cut a little "v" into it for the flap to have a kind of shelf to grab to; could still use the vent control to regulate the airflow. You can get in there by pulling the glove box and then peeling back the little rubber boot. Kinda tight to get your fingers in there but very do-able.
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Quote:
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
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center vent vacuum dashpot
Mine has been propped open for years, but... it leaks vacuum and I have maybe 15 seconds to exit the car and lock the doors before the vacuum bleeds down and the doors won't lock.
So I found a good dashpot on a 300D in the U Pull yard, someone had already pulled the dash so I got a good look at it. Not only did the MBZ engineers make it very hard to get at, but they also installed it with one-way single use spring washers on plastic mount studs that cannot be removed without destroying the studs. So I may order a new one anyway. Here is a link to a thread which discusses how to replace the center vacuum dashpot. PeachPartsWiki: Replacing the HVAC Vacuum Actuators If you had a borescope, an assistant, small hands, and a lot of patience, you just might be able to do it this way. Good luck! |
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