My 2001.5 B5.5 AWM Passat's battery finally gave up the ghost this week. It would not hold a charge overnight. I researched this forum and found out that the battery every store wants to sell is for the "old body" B5 Passats. It is about 2 inches shorter in length than the newer Passat battery.
I shopped around a good bit and found this to be true. I went to the VW dealer and the parts guy had a hard time finding it but eventually go the part number and it came up with a $168 price. Even he agreed that was insane and that I should go elsewhere.
I found the closest match to be the one I got from Autozone (48-DL). it was $69. It had the hold-down ridges on the bottom which batteries in other store did not have. This Autozone Dura-Last (cheesey name to be sure) slid right in but was two inches shy of filling the compartment and being in position to be secured with the existing hold-down clamp for the larger battery. BUT, LO and BEHOLD! The bottom of the tray upon which the battery sits has three drilled and threaded holes that just so happen to fit the bolt used in the existing and no-longer-fitting hold down clamp. So, I took a piece of flat stock and used it to wedge against the battery bottom ridge, ran the old bolt through it and tightened the bolt down in one of the threaded holes in the battery platform. The other end of the battery is pushed in so the bottom ridge is under a stationary clamp on that end. It is very secure and I'm a happy guy again.
I just wonder what I am losing by having the smaller battery. It is rated for 750 CCA which exceeds the old battery. It may have less amp-hours, I'm not sure. Anybody know?
I shopped around a good bit and found this to be true. I went to the VW dealer and the parts guy had a hard time finding it but eventually go the part number and it came up with a $168 price. Even he agreed that was insane and that I should go elsewhere.
I found the closest match to be the one I got from Autozone (48-DL). it was $69. It had the hold-down ridges on the bottom which batteries in other store did not have. This Autozone Dura-Last (cheesey name to be sure) slid right in but was two inches shy of filling the compartment and being in position to be secured with the existing hold-down clamp for the larger battery. BUT, LO and BEHOLD! The bottom of the tray upon which the battery sits has three drilled and threaded holes that just so happen to fit the bolt used in the existing and no-longer-fitting hold down clamp. So, I took a piece of flat stock and used it to wedge against the battery bottom ridge, ran the old bolt through it and tightened the bolt down in one of the threaded holes in the battery platform. The other end of the battery is pushed in so the bottom ridge is under a stationary clamp on that end. It is very secure and I'm a happy guy again.

I just wonder what I am losing by having the smaller battery. It is rated for 750 CCA which exceeds the old battery. It may have less amp-hours, I'm not sure. Anybody know?