Fans keeps spinning on full speed. Please Help

Nov 29, 2025 | 05:40 PM

Wilkiethomas

Thread Starter

Newbie

Joined: Oct 2024

Posts: 13

Likes: 0

Fans keeps spinning on full speed. Please Help

Sometime the car just starts up with no issues but most of the time the fans will come on and car wont start. And the fan wont go out unless i disconnect the battery

Attached Files

IMG_7845.mov (18.15 MB, 15 views)

Nov 29, 2025 | 06:21 PM

CaliBenzDriver

Out Of Control!!

Joined: Apr 2019

Posts: 11,923

Likes: 6,776

From: Silicon Valley

W212 MY'14 M276-3.5NA @75kMi

NEED TROUBLESHOOTING TOOLS

Quote:

Originally Posted by Wilkiethomas

Sometime the car just starts up with no issues but most of the time the fans will come on and car wont start. And the fan wont go out unless i disconnect the battery

This is a standard Mercedes feature. This issue will need to be diagnosed before a successful solution can be applied.

Either a low A/C pressure or a bad network connection to the fan itself or watered out electronics.

Based on your description you may concider reading refrigerant pressure to assess bad sensor or low charge.

Last edited by CaliBenzDriver; Nov 29, 2025 at 06:26 PM.

Reply Subscribe

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)