Not only do they warm up slowly, but if you get stuck sitting somewhere (like for a slow train crossing) in bitter cold weather, they will cool off while you are stopped!
A bad t-stat usually shows up as an engine that never gets up to operating temp in the winter (80C). My first 300D had a bad one, ran fine in the summer, but once fall got here, the temp would never get up to 80. Peter -----Original Message----- >From: Max Dillon <meadedil...@bellsouth.net> >Sent: Feb 8, 2011 9:55 AM >To: Mercedes Discussion List <mercedes@okiebenz.com> >Subject: Re: [MBZ] '95 E300 with OM606 - how long to reach operating temp? > >As in coolant circulating pump? Yes. My question arises due to the >difference >in engine temperature (gauge) behavior, not in how quickly heat is produced in >the passenger compartment. > >I'm suspicious of my t-stat, but I'd like confirmation from some other owners >that long warm-up compared to a OM603 turbo is normal. > >-Max > > > > >________________________________ >From: Gerry Archer <arche...@embarqmail.com> >To: Mercedes Discussion List <mercedes@okiebenz.com> >Sent: Mon, February 7, 2011 10:11:20 PM >Subject: Re: [MBZ] '95 E300 with OM606 - how long to reach operating temp? > >Does it have an auxiliary pump like a 123? >Gerry >-------------------------------------------- >From: "Dieselhead" <126die...@gmail.com> >>I know the OM603 is slower to warm up than the iron head Diesels. It is >>because the engine is more thermally efficient. It might make sense that >>the 606 takes a little longer. But those with 606s are in a better >>position to answer. I've never driven one. >> >> x >> >> >>>Dieselvolk, >>> >>>I've been driving my '95 E300 quite a bit now that I've got most of the >>>big >>>issues sorted out, but it really seems to take a long time to warm up >>>(compared >>>to my '87 300TD for instance). I'd like to know if anyone else with an >>>E300 (or >>>a normally aspirated OM606) also had noticed that these non-turbo engines >>>need >>>more time, for instance about ten minutes of driving, to get up to 80+ >>>degrees >>>C. When I had my '84 190D, I noticed that it also took longer than my >>>'87, and >>>longer than my '85 300TD which had an OM617 non-turbo engine, so maybe >>>with each >>>generation of OM60x engines in non-turbo form, they need more and more >>>time to >>>warm up? >>> >>>Background: T-stat is new within last 12 months, tested stove-top for >>>opening >>>and closing prior to installation, has proper MB-spec coolant with the >>>t-stat >>>installation. >>> >>>Very respectfully, >>>/s/ >>>Max Dillon >>>'87 300TD 333k miles >>>'95 E300 278k miles >>>'73 Balboa 20 >>>Charleston SC >>>_______________________________________ >>>http://www.okiebenz.com >>>For new and used parts go to 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.com >> For new and used parts go to 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.com >For new and used parts go to 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.com >For new and used parts go to 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.com For new and used parts go to 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
