I replaced the timing belt, water pump and thermostat at 90,000 miles now I am coming up in 110,000 miles. I noticed a small coolant drip towards the rear of the engine. I suspect it is the auxiliary water pump . I have a Bently manual as far as I can tell there is no detailed replacement procedure. How difficult is it to replace ? Way to the best way to confirm pump is bad. Do I have to remove many parts to confirm and then reinstall everything and then order pump ?

Thanks for any info.

Rob

 

I cannot tell you how to replace since my indie shop does the work, but when mine went I was able to see the dried antifreeze on the bell housing where it was leaking down and turning crusty white. Obviously, the view was from under the car when it was up on a lift.

 

You should be able to remove the MAF and y-pipe and get a good enough look at the top of the bellhousing to look for the pink residue.

Good luck,

Bob

 

Thanks for the reply. Question, are these parts easy to remove and reinstall then order pump if pump is bad. Then do job all over again.

Thanks again

 

Recently did the aux pump on my 04 2.7T and it required lifting the intake manifold which is not difficult as it sounds but is time consuming to free up all the connectors and pipes. There are also a few tricks to removing the air pump (electric number against the driver side fire wall) and some of the hard PVC pipes for vacuum lines.

If you are going to handle this job, I can recommend 1) an extra set of hands to help out. 2) be sure to get worm clamps in a variety of sizes as the factory clamps are one use. 3) be sure to get the intake and exhaust hoses for the pump as mine were baked on and not re-useable - not that I would but it should be mentioned. 4) have a shop vac handy as you do not want sand etc.. in to fall in the intake 5) Take your time, it should take between 6-8 hours to complete the job.

PM your email and I'll send a few photos I took of the intake lifted and pump in question. The Bentley manual was mostly worthless but the procedure is pretty self explanatory once you get the engine covers off.

Best of luck

 

Stupid double post - sorry!

 

Thanks for the reply. Nice information.

 

To answer your question, yes, the y-pipe is (within reason) easy to remove and replace. Parts past the y-pipe, things get more "interesting".

Bob

 

Thanks