type 44 (200QA) just won't stop :-( The braking is fine. The breaking is not.....
kentmclean at comcast.net
Sun Nov 27 06:07:28 PST 2011
David Michael wrote:
> Anyone have an old type 44 oil cooler and both hoses laying around
> gathering dust ;-)?
When my 1990 10V spewed oil for the 3rd time, I gave up on used parts
and went with an after market oil cooler. The Audifans Knowledgebase is
down and Web Archives can't show my old oil cooler page, so here it is
again (without images):
Replacing an Oil Cooler and Hoses
After two failures of the oil hoses on my '89 200 TQ, where the contents
of the sump were pumped out onto the ground (and earning my car the name
"Bad Puppy"), I decided to fix the problem once and for all. In my case,
the problem was a separation of the braided hose from the ferrule that
attaches it to the oil filter adapter. Age, road salt, and corrosion ad
done taken their toll.
There are a few approaches to fixing the problem:
New Audi OEM factory replacements -- very expensive. You may also
find the old fittings are frozen in place, and removing them might
destroy the oil cooler.
Non-Audi replacement hoses. Your local truck stop probably has a
hydraulics repair shop that can create new hoses for a lot less than
Audi. The Do-It-Yourself types can use AN fittings and hoses to make
their own. This approach still uses the old and questionable cooler.
A replacement oil cooler, available at most an local auto parts
store. The kit I bought included a new adapter (which I didn't use),
barbed fittings that screwed into the adapter, hose clamps, and about
10-feet (3 m) of hose. This is the solution I used.
I used a new Hayden Automotive Engine Oil Cooler
(http://www.haydenauto.com/engineoc.html), part number 459. I purchased
the kit at the local Pep Boys for US$79. Add about $10 for metal
strapping and some nuts and bolts, and the cost of my fix was under $100.
The new oil cooler is 12-3/4 x 7-1/2 x 3/4 inches (320mm x 190mm x
19mm), with 1/2-inch (13mm) push-on fittings. It is bigger but thinner
than the original Audi part. When offered up to the opening vacated by
the old oil cooler, it fit perfectly when positioned horizontally. The
air duct for the old cooler would direct air at and over the new cooler,
so that's where I decided to put it.
ALERT! Disclaimer: Work on your car at your own risk. Although this
solution worked for the author, he cannot guarantee that it will work
1. Remove the Old Parts
Before starting, drain the engine oil. In my case, there was nothing
left in the sump to worry about.
The old oil cooler came out without much trouble. First take the oil
hoses come off using a 27mm wrench. Since I wasn't reusing the fittings,
I used a pipe wrench. With the hoses off, you should see two adapters
fitted to the oil filter housing. Remove them using a 23mm wrench.
Again, a pipe wrench works in a pinch. The oil cooler should come out
with the hoses. You should also remove the ducting that feeds cool air
to the oil cooler.
You should be left with just the oil filter adapter that has two
threaded openings for the oil cooler lines.
2. Install the Fittings
The adapter fittings that come with the new oil cooler are English
measurement, 5/8-inch by 18 threads per inch. The oil filter housing is
metric, 18mm by 1.5mm threads. My test fit showed the thread size to be
OK, although the adapter diameter was a loose fit. I used some Permatex
(R) Threadlocker Blue, the non-permanent kind, to hold the adapters in
place and keep them from leaking. Following the directions on the
bottle, I applied it, installed the adapters, and let them dry for 24 hours.
3. Position the Cooler
A trial fit of the new cooler showed a nice shelf on the inside of the
right fender on which one end of the cooler could sit. The shelf had a
few holes through which a bolt would fit to secure the outside edge of
the cooler. Perfect.
That left the other end of the cooler dangling in air, but with the
inlet and outlet tubes pointing at the adapters on the oil filter. That
was good. I just needed a way to secure it -- a piece of metal strapping
4. Secure the Cooler
I secured the end of the oil cooler opposite the inlet/outlet tubes to
the fender perch first. I cut a couple pieces of the new oil hose 1 inch
(25 mm) long to use as grommets. The hose/grommets would fit inside the
loops of the oil cooler pipes, cushioning the cooler from vibration. For
the smaller loop, I had to slit the hose to make it fit. I used two
1/4-inch (6 mm) bolts 1-inch (25 mm) long to secure the oil cooler to
the fender shelf. The bolts passed through the fender lip/bracket and
through the hose/grommet inside the loop. Large fender washers, about
1-inch (25 mm) wide, made sure the bolt didn't slip through the loop.
I secured the other end of the oil cooler with a 1 inch (25 mm) wide
piece of metal strapping, 8 inches (200 mm) long with 1/4-inch (6 mm)
holes every inch. A 1/4-inch (6 mm) bolt 1/2-inch (12 mm) long secured
the bracket to the a convenient part of the frame. The other end of the
strapping could then be moved to align a strapping hole with one of the
loops in the oil cooler. Another bolt and nut secured it to the oil cooler.
5. Attach the Hoses
The hoses are the 1/2-inch (13mm) hose supplied with the kit. I cut them
a little long to fit between the oil cooler and oil adapter. I used one
worm-type hose clamp at each end. A year later my hoses blew off once
again. Some Audifans suggested using 2 clamps at each end; it's cheap
6. Test Your Work
If needed, re-fill the engine with the appropriate oil. Start the
engine, let it run for 15-20 seconds, and shut it off. Then check the
hoses and connections for signs of leaks.
It took me about 3 hours to remove and replace the oil cooler. Most of
that time was spent looking at and thinking about the problem -- how
much space there was, what would fit, how to connect things. If I were
to do it again, it would take me about an hour.
The results: The oil temperature remains at the low end of the gauge,
just as it had before I replace the oil cooler. And now I have a new oil
cooler and hoses that can be replaced easily using readily available
hose, at a price much less than just one Audi hose.
-- KentMcLean - 08 Jul 2003
1999 A4 Avant, V6 Tiptronic
1990 200 Avant mit V8 conversion
gone: too many to count, including my first, "Bad Puppy"
More information about the quattro