Gas gauge on cluster is showing empty after replacing my alternator

Asked by GuruXG1BF Nov 30, 2018 at 02:56 PM about the 2003 Mercedes-Benz E-Class E 500

Question type: General

after replacing my alternator my gas gauge on my instrument cluster is showing empty even though my i just got gas. what could this be? please help?

1 Answer
22,660

Guru9FSV8 answered 6 years ago

Did you check for any blown fuses in the fuse boxes? Was the battery low when the vehicle was started with the new alternator? If so a surge probably took place because new alternator was trying to overcompensate for the low battery charge. Never start a car with a new alternator and a low battery. Charge the battery while you are changing out the alternator. You must disconnect the battery anyway before beginning any electrical work.

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