2000 Audi A6b Quattro, Front pump housing transmission seal slipped, drove 22 miles, smoke, he missed something about a loose bushing, machined out housing inserted a sleeve made for this type of housing wear problem, had two months seal slipped again mechanic has no idea why and is procrastinating on fix, Audi friend mentioned "enlarging the drain hole' but probably unrelated, why would this slip again and can a new front pump housing just fix this? bought with 55,000 miles on it now only has 80,000. Help?

Marvin

• 85242 Answers
• Posted on Oct 13, 2008

SOURCE: Oil questions for 2003 Audi A6 Quattro

oil type is either 5W-30W or 10W-30W depending how cold your climate is, as far as having the car properly taken care of, the Audi dealer is the best option, they have all the proper tools and service info needed to keep the car in top running condition.

SOURCE: front end noise 2000 audi a6 bi-turbo

could possibly be a worn wheel bearing hope this helps glenn...

SOURCE: 1996 Audi A4 Automatic transmission wont shift when cold

Silly question: Have you checked the transmission fluid level, and is it to manufacturer's spec?

SOURCE: Check engine light

Funny that they changed the temp guage sensor....known problem on pre-2001 Audi TT and VW engines. Maybe yours was an early build 2002, so they helped you avoid a future problem.
As for the air flow, another known problem is the MAF (mass airflow) sensor. Don't panic, as this is a do it yourself job. Very likely problem if you ever installed a K&N type aftermarket air filter. These oiled filters cause buildup on the sensor. Free fix is to take the sensor body off (its the big ring/pipe coming off the air filter box before the rubber air intake hose) and clean the senor with isopropyl alcohol. Sensor body comes off by loosening the hose clamp on one end, and two screws into the filter box on the other. Don't forget to release the wiring harness plug by gently releasing the tab with a flat head screwdriver.
If your not comfortable with the cleaning, just find the MAF part on-line...about $200 bucks for a new one from Bosch. Very easy to do it yourself and a common failure point on the Audi.
For those still having the coolant sensor problem, also easy to replace yourself....about $10 bucks with a new o-ring.
Like GURU said, a code reader tool will tell if you have these problems, after the engine light comes on.

SOURCE: What type of oil does my 2005 A6 Audi 3.2 Quattro use?

it doesn't matter what brand you use, just make sure you use the motor weight on the cap (don't use Pennzoil)