When my windows would dip down but not return up, I had no other electrical problems with the car.
I read on this forum that a new battery would probably fix the problem.
It sounded a bit ridiculous, as I had no problem starting the car.
I did replace the battery since I figured that after 14 years it owed me nothing and it solved the problem.

 

Hi Stu,
Thanks for your reply - but as I’ve already said, my battery was fitted new very recenty.
regards

 

Find your local battery distributor. Ask for a “Second”. The only thing that makes it a second is some cosmetic blemish on the case. Price will be less than half of factory original. More importantly life will be the same. Have been using a “second” for seven years with no memory issues (not counting my own.....)
BLACCAT

 

Eleven years later you advice is still helping new owners. Thanks

 

You guys are awesome! Another mystery solved on my 2002 XKR conv. Thanks so much. Bill