Something is requsting my cooling fan to run at %100 when car is shut off
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Newbie
Joined: Mar 2015
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2004 E500 4Matic
Something is requsting my cooling fan to run at %100 when car is shut off
Recently i brought my car (2004 E500 4Matic) in to change my oils (motor and transmission). After the oil changes i asked the mechanic if he could check for any error codes and to tell me exactly where my ESP and ABS problem was coming from. Right after he unplugged his scanner and shut my car off the fan just kicked off at full speed.... Like a jet engine. It seems to only do it when the car is shut off and stops the second i put the key in the on position or start it and will immediately start back up when i put the key in the off position and will not stop.... Anybody have any idea what could be the problem? On another scanner it stated that the engine was requesting that the fan run at %100 of its speed.
Thank you.
Thank you.
Member
Joined: Oct 2011
Posts: 211
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'97 E200, '06 E350 & '23 E350
Good Thing it was only a relay.
I had the same thing on my '06 E350 about a week ago. I inspected the coolant reservoir and to my shock I found oil in it! The fan wouldn't always turn on after the car is locked but sometimes it did it.
Turns out it was a defective Oil Cooler because the engine started to run hot.
I had the same thing on my '06 E350 about a week ago. I inspected the coolant reservoir and to my shock I found oil in it! The fan wouldn't always turn on after the car is locked but sometimes it did it.
Turns out it was a defective Oil Cooler because the engine started to run hot.
Junior Member
Joined: Jan 2015
Posts: 45
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From: Los Angeles
2004 E500
Thread Starter
Newbie
Joined: Mar 2015
Posts: 3
Likes: 0
2004 E500 4Matic
If that doesn't work you should check the fans connection. Maybe the module on the fan no longer works like it's supposed to. If that's the case i'd like to tell you right away Mercedes doesn't sell the module separately ($900-1000 for the whole fan)
