One problem related to battery has been reported for the 2001 Mercedes Benz ML320. The most recently reported issues are listed below.
Intermittently while driving dashboard warning lights come on and stay on, then all the gauges stop working. Dealership replaced gear selector, but the problem still exists. Please refer to odi# 10022912(the exact info) the instrument cluster also flashed and beeped. The speedometer/tachometer activated and then shut down, then restored themselves after 20 minutes. In addition to the initial gear selector shift assembly needed replacement at the consumer's expense. Twenty failures occurred within 500 miles. The bas/esp control module as well as a new battery at no cost. The consumer had not taken the vehicle back to the dealer after the 3rd failure due to them not being able to find the problem. The vehicle would stop on the highway.