My car: 2014 E350 4Matic sedan. W212 with 100k miles.
I’ve noticed an ever increasing noise from under the hood while driving and for a few minutes after shutting down. The noise has been steadily getting louder to the point that it is noticeable from inside the car while driving. It is a high pitched whine that continues for a few minutes after the car is off. I finally found the source of the noise to be a fan mounted on the back of the headlight assembly. Apparently it is a cooling fan for the static LED headlights. No alert messages but I think it’s headed for catastrophic failure. I have an appointment with the dealer to diagnose and repair the problem. My questions are:
I’ve noticed an ever increasing noise from under the hood while driving and for a few minutes after shutting down. The noise has been steadily getting louder to the point that it is noticeable from inside the car while driving. It is a high pitched whine that continues for a few minutes after the car is off. I finally found the source of the noise to be a fan mounted on the back of the headlight assembly. Apparently it is a cooling fan for the static LED headlights. No alert messages but I think it’s headed for catastrophic failure. I have an appointment with the dealer to diagnose and repair the problem. My questions are:
- Has anyone else had this problem?
- can the fan be replaced or does the entire headlamp assembly need to be replaced?
CaliBenzDriver
Out Of Control!!
close
Today
- Join DateApr 2019
- LocationSilicon Valley
- Posts:11,555
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I driveW212 MY'14 M276-3.5NA @75kMi
-
Likes:6,866
-
Liked:6,589 Times in 4,624 Posts
Quote:
I’ve noticed an ever increasing noise from under the hood while driving and for a few minutes after shutting down. The noise has been steadily getting louder to the point that it is noticeable from inside the car while driving. It is a high pitched whine that continues for a few minutes after the car is off. I finally found the source of the noise to be a fan mounted on the back of the headlight assembly. Apparently it is a cooling fan for the static LED headlights.
No alert messages but I think it’s headed for catastrophic failure. I have an appointment with the dealer to diagnose and repair the problem. My questions are:
Probably a $3k.Ea. which would be hard to swallow on a car worth maybe $9000!
Good job tracking down your noisy LED HL cooling Fans.Originally Posted by jpmancuso
My car: 2014 E350 4Matic sedan. W212 with 100k miles.I’ve noticed an ever increasing noise from under the hood while driving and for a few minutes after shutting down. The noise has been steadily getting louder to the point that it is noticeable from inside the car while driving. It is a high pitched whine that continues for a few minutes after the car is off. I finally found the source of the noise to be a fan mounted on the back of the headlight assembly. Apparently it is a cooling fan for the static LED headlights.
No alert messages but I think it’s headed for catastrophic failure. I have an appointment with the dealer to diagnose and repair the problem. My questions are:
- Has anyone else had this problem?
- can the fan be replaced or does the entire headlamp assembly need to be replaced?
Probably a $3k.Ea. which would be hard to swallow on a car worth maybe $9000!
They are the okay "ball-bearing" grade but the high engine heat keeps them spinning fast with hot engine bay...
You may be able to source the $20 replacement blowers instead of whole $$$$ headlights. This is not a common repair.
I took the car to the local Mercedes dealer and was informed that the headlight assembly needed to be replaced. Total repair quote was $3,450! I also called my local non-dealer repair shop. They gave me almost the exact same quote.
Crazy.
Can you downgrade to Halogen?
Or look on Ebay for the LEDs.
I swapped my whole house to LEDs around 2014-16. Saved a fortune as they are all still working, crazy reliable and long life.
Might even be able to find a whole car on COPART for $3,500
Can you downgrade to Halogen?
Or look on Ebay for the LEDs.
I swapped my whole house to LEDs around 2014-16. Saved a fortune as they are all still working, crazy reliable and long life.
Might even be able to find a whole car on COPART for $3,500
S-Prihadi
MBWorld Fanatic!
close
Yesterday
- Join DateMay 2018
- LocationJakarta-Indonesia
- Posts:6,476
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I drive2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
-
Likes:1,417
-
Liked:6,427 Times in 3,871 Posts
Quote:
1 headlight at this price ?Originally Posted by jpmancuso
I took the car to the local Mercedes dealer and was informed that the headlight assembly needed to be replaced. Total repair quote was $3,450! I also called my local non-dealer repair shop. They gave me almost the exact same quote.
I thought that is the dynamic version price range.
I paid the repair price of $3,400 and will be picking up tomorrow. The invoice indicates the headlight assembly is $2,600 and is the bulk of the repair cost. I am wondering if there is any kind of appeal process with MB knowing that the LED headlight cooling fan should last the life of the vehicle and it is unheard of for this part to fail. It is obviously a manufacture defect.
