Ha! I wanted to swap out hat speedometer anyway. Headwind is irrelevant to the situation.
Just in case... could it also be the turbocharger? Anybody BTDT? On Tue, Jun 1, 2010 at 6:30 PM, Tim C. <bb...@crone.us> wrote: > My guess also, BTDT w123 300D NA. Disconnected speedo, sound went away. > Reconnected it came back. > > Took apart speedo, greased, put back, no sound. > > For me, it started at lower speeds when it was colder. I would have > described it as a big blower motor behind the cluster, though I also thought > it might be in the engine compartment. Easy fix, hope it is for you too! > > -Tim > > Rich Thomas <richthomas79td...@constructivity.net> wrote: > > >Speedo cable/head? > > > >--R > > > >On 6/1/2010 5:06 PM, andrew strasfogel wrote: > >> I get a hoarse "wha, wha, wha" noise when my 1983 300TD turbodiesel > wagon > >> reaches 65 mph and above. The noise dissipates (goes away) when I drop > >> below 60. The noise appears to emanate from under the hood just in > front of > >> the windshield, roughly in the center. I can't rule out something in > the > >> instrument cluster, although the tach, temperature gauge, and other > >> indicators are unaffected during these episodes. It has nothing to do > with > >> the cruise control or radio or ACC operation either - I've checked. > Vehicle > >> handling is OK during these noisy episodes, although it is unsettling to > say > >> the least. > >> > >> So what could be the source of this noise ONLY at high speeds? Could it > be > >> a problem in the turbo? The noise invariably manifests itself in > >> relation to road speed, not engine revs. I am truly perplexed, as this > has > >> never happened to me in 21 years of driving these cars. > >> > >> TIA, > >> > >> Andrew > >> 1983 and 1985 300TDs > >> _______________________________________ > >> 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://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://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://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://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
