B Klasse rough idle and engine mount error

Uneven idling and an engine mount error? I've had something similar with my B Klasse. Have you checked the engine mount's physical condition? Sometimes it's visibly cracked or damaged.

Thanks. When you had a similar issue with your B Klasse, did you see error codes related to the mounting bracket, or were there just physical symptoms like excessive vibration?

The error code pointed to a problem with the engine mount signal. The workshop confirmed it was a faulty connection. I'd recommend getting it checked professionally.

I appreciate you sharing your experience. I took my car to a workshop, and it was a loose connection to the engine mount sensor, like I thought. They secured the connection and cleared the error code. The idling is now smooth. Thanks again for your help.