Re: Oil Change

[zm@mhcnet.att.com (Zafer Mehmood [209])]

> > 	3) I read in my Haynes Manual about a turbo filter as well.
> 
> I read the same Haynes manual for my 87 TQ, and ran out and bought both
> filters.  I'm assuming your 89 is the same as my 87, and what I found out is
> that the turbo filter is for the Turbo cars, not for the Turbo Quattro's.  I
> was told TQ's have an intercooler where the filter would go on the Turbo cars.
>  Of course, YMMV.
> 

Sorry, I have to disagree. The difference is between oil and water-cooled
turbos, and not Turbo and Turbo Quattros. Also, the intercooler has nothing
to do with oil or oil filters, it just cools the intake air heated up by the
turbo and its compressing action. May be you meant oil cooler.

	Pre-86 turbo Audis had two oil filters - one regular and another,
smaller "turbo filter". As Glen pointed out, with the move to water-cooled
turbos, Audi eliminated the extra turbo filter but replaced the regular
filter with a single turbo filter. This filter is the same size as
the non-turbo filter in the pre-86 cars but has different valving for
the turbo application. The Audi part number for this turbo filter is
035 115 561 and I know its specified for 86-88 5000 turbos and possibly
even the later model years. This filter costs $14 at the dealer but
I've purchased it from PAP (800-944-2964) for $7.99 each when 6 are purchased.
Filters from Mahle, Knecht, Mann and Hengst are all good as these are OEM
suppliers to Audi, Mercedes and BMW.

In my experience, the Audi turbo filter is worth the extra $. It reduces
the lifter noise at startup and provides quick lubrication by preventing
the oil from draining back into the crankcase.

-Zafer
87 5000TQ

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Zafer Mehmood				   AT&T Bell Laboratories
zm@mhcnet.att.com			   Murray Hill, NJ