C Class (W205) C 180 BlueTec,C 200 BlueTec,C 220 BlueTec,C 220 BlueTec BlueEfficiency,C 250 BlueTec,C 300 BlueTec Hybridplus,C 180,C 180 BlueEfficiency,C 200,C 250,C 300,C 400 Plug-in Hybrid,C 400

Strange rattle noise when auto start stop engaged

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 05-25-2021, 12:28 PM
  #1  
Member
Thread Starter
 
Bmarcinczyk14's Avatar
 
Join Date: Dec 2019
Posts: 153
Received 13 Likes on 8 Posts
2016 C300 w/ sport package
Strange rattle noise when auto start stop engaged

I notice when I'm near a wall or another reflective surface and the auto start/stop shuts off the engine when coming to a stop, there's a weird rattley fan type noise I can continue to hear from the engine area. If I completely turn off the ignition the noise goes away. Any ideas of what this might be and is it normal to hear anything when the auto start/stop is on?

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


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Strange rattle noise when auto start stop engaged



All times are GMT -4. The time now is 03:45 PM.