I recently had Wal-Mart auto services install a battery in my car. After a few days the car stalled and had to be towed to garage.
The mechanic found that the wrong battery had been installed. It was too high, it overheated and welded the hood latch shut as well as caused damage to the underside of the hood. The cost of the damage was $490. I had the Walmart receipt for the battery and installation, a receipt from the mechanic who fixed the damage clearly stating that the cause was the installation of the wrong battery, and pictures of the damages.
I submitted these to Wal-Mart's claim management company (CMI) and my claim was refused. They blamed the manufacturer of the battery not the morons who installed the wrong one.
I will pursue this in small claims court since Walmart doesn't take responsibility for its mistakes.
Review about: Walmart Installation.