Dan,
I did a coolant flush 2 years ago. I had a monovalve issue on my 1983 300D a few years ago and that was the fix. I am researching a monovalve on this car and can't find the part or repair instructions??? -----Original Message----- From: Dan Penoff via Mercedes <mercedes@okiebenz.com> To: Mercedes List <mercedes@okiebenz.com> Cc: Dan Penoff <d...@penoff.com> Sent: Wed, Nov 9, 2016 7:35 pm Subject: Re: [MBZ] 1990 Mercedes 300E - Heater Issue Done a flush and fill in recent years? I would suggest checking the monovalve, but if it was acting up you would just get straight heat, and lots of it.Have you checked to see if air is coming out of the defroster vents? You could have a leaking or failed vacuum actuator in the ACC system.Just doing a stream of consciousness thing here….Dan> On Nov 9, 2016, at 7:30 PM, Robert Koziak via Mercedes <mercedes@okiebenz.com> wrote:> > Hi All,> > > My 1990 300E (103K) heater is only blowing warm air not hot. The problem started last winter and the recent cool weather in the Northeast reminded me of the issue again. The engine temperature warms up to normal range. > > > Any suggestions?> > > Bob> _______________________________________> http://www.okiebenz.com> > To search list archives http://www.okiebenz.com/archive/> > To Unsubscribe or change delivery options go to:> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com> > _______________________________________http://www.okiebenz.comTo search list archives http://www.okiebenz.com/archive/To Unsubscribe or change delivery options go to:http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
