Why can't the Mercedes-Benz start when 'Do Not Shift' is displayed?

1 Answers
SanLincoln
07/29/25 6:50pm
Reasons why a Mercedes-Benz cannot start when 'Do Not Shift' is displayed: dead battery, spark plug failure to ignite, or starting circuit malfunction. Dead battery: Sometimes, you may find that the car cannot start normally in the morning, which is likely due to the trunk not being completely closed, causing the trunk light to stay on and drain the battery. Spark plug failure to ignite: Spark plugs are prone to damage, and short circuits in high-voltage lines can prevent them from igniting. Additionally, poor-quality spark plugs can also cause failure to start normally. Starting circuit malfunction: If there is only a slight sound when starting and no other response, this is caused by a stuck starting relay.
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