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From digest.v6.n880 Mon Jul 14 17:09:12 1997
From: (Phil Marx)
Date: Mon, 14 Jul 1997 13:50:45 -0500
Subject: re: 87 535iS AC

>From: John Thomson <>
>Date: Sun, 13 Jul 1997 22:17:22 -0400
>Subject: 87 535iS AC
>I just bought a 1987 535IS and love it. I can't get the AC to really get
>cool. The car just had the cooling system replaced (radiater, hoses, etc)
>also the ac drier was replaced. Part of the problem comes from air that
>constanly blows in from underneath the dash on the driver's side. It blows
>in from the engine compartment, so needless to say it is hot air which makes
>the problem worse.
>Thanks in advance for any advice.
>John Thomson

Usually this is caused by a missing blank-plug in the firewall near the steering column entry point. This hole is covered by a plastic plug about 35-40mm in diameter. The plug just snaps in, no insulation, nothing. It will also quiet those clicking injectors you hear inside the cabin. Most use an oval plug 35x40mm part number (which can't cost $1 but is a bear to find on the film). If you have the 35mm round, it is part # Get up under your dash with a flashlight and poke around with your fingers behind the carpet to find the hole. Not too bad in the winter but will burn your feet in the summer. You might also find the piece dropped behind the carpet, if you feel like tearing it up to look. The fit is not very tight on the plugs. (The second time I used silicone glue!)

  • -Phil Marx BMWCCA #6021
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