ltooz_a6_a8_q7

Hello all,
Did anyone replaced the waterpump only in the A8 4.2. The ex-owner replace timing belts and serpentine belt at an illogical service center which didn't recommended replacing the waterpump & thermosat @ 80k miles, now the car has 105k and I just heard the waterpump bearing growling at idle last night. Why do these service places exist? How long does it take for a waterpump to make noise before it actually leaks coolant and breaks?

Thanks,

Louis

JimR

<ul><li><a href="http://www.audipages.com/Tech_Articles/enginemechanical/tbreplace0.html">See here. You've got to do most of this.</a></li></ul>

ltooz_a6_a8_q7

loosen the tensioner and remove the waterpump without messing with the timing belt?

skiracer

If you need a water pump, I would go ahead and replace the TB and associated pulleys and tensioner simply because to do the job right you must properly remove and reinstall the TB. I know that's not what you wanted to hear, but that is the way I would strongly recommend doing it.

JimR

I haven't done an A8, but on the A6, I don't think there's any way you could remove the water pump without removing the TB.