[Biturbos4] Engine temps and Headlights

[j.koenig]

Well said.  Those clips seem to bake over time and get brittle.  New ones are much more 
pliable; they're also cheap.
In my experience too, a little lube goes a long way on the O-rings.  I use Girling Rubber 
Grease.
Also applies to, for example, the lower rad. hose connection.


----- Original Message ----- 
From: "Robert Bullivant" <Robert at BullivantGallery.com>
To: <biturbos4 at www.audifans.com>
Sent: Monday, December 13, 2010 1:17 PM
Subject: [Biturbos4] Engine temps and Headlights


Changed the engine temp sensor this weekend. The old one looked pretty
cruddy, but alas, it's now clear that the wavering engine temp
is clearly a thermostat issue. I'll tackle this in few weeks, until
them, trying the old put some cardboard in front of the radiator (it was
all of  3F here
this am).   Once experienced mechanic quoted it at 2.5 hours.  You'll
need to remove the bumper, but not the timing belt.

A note on changing the temp sensor:  Order a new retaining clip and the
O ring.  My retaining ring came out in 6 pieces, and the O ring had
virtually disintegrated.  You'll need to spend some time cleaning up the
housing prior to installing the new sensor.  I'd suggest once you have
nice and clean (which is a trick without dropping crud into the
antifreeze) that you place the O ring in the housing first, then press
the sensor
down in to that.  I used Silicone lube from my diving repair kit
(available at any dive shop)  has consistency of  petroleum  jelly, but
will not
negatively effect seals.  Put a dab on new sensor and  it slides right
in.  Now new retaining clip put into place to lock it in, and finally
reconnect
wiring harness boot.

Headlights: Yes the D2s bulbs in the Audi head light set up is
definitely "clocked".  It's also very easy to think you have the bulb
installed
properly when you don't.  If its not clocked properly there will be a
major difference in light output (less) and where it is directed.
Typically
if you mount the bulb wrong the low beam will point too low.  Just be
aware when you install the new bulb.


Robert
S4 Avant