Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 08-20-2002, 11:29 AM
Posts: n/a
Question Intermittent clapping noise from ventilation

I have a 1991 300se (W126). Recently the ventilation system has been making an odd noise. About one to two minutes after the A/C has been turned on, a noise that sounds like a large book being closed seems to emanate from deep within the center part of the dash board. According to my wife, the heater also is not working properly (now that she is back in South Carolina I have not worked up the motivation to verify this in 95 degree heat!).

Any idea might cause the noise? Would it be related to a poorly functioning heater?

Sincerely, Eric Powers
Reply With Quote
Old 08-20-2002, 12:25 PM
dpetryk's Avatar
Electrons can do anything
Join Date: Sep 2001
Location: Houston, Texas
Posts: 1,071
There is a large movable panel that is moved by a vacuum actuator that selects the air source. Its movement selects either outside air or inside air (recirculate). The panel is covered by some type of foam insulation that degrades over time and becomes sticky. It is really bad if the driver is a smoker. This panel sticks in the closed position until there is enough force from the actuator to move it and then it makes the noise you hear. It is located behind the glove box and can be easily accessed by removing the glove box. A little cleaning in the right places will solve your problem.
I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 07:43 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page