"Auto Lamp Function Inoperative" after changing rain/light sensor
Thread Starter
Newbie
Joined: Jun 2019
Posts: 1
Likes: 0
W204
"Auto Lamp Function Inoperative" after changing rain/light sensor
Hello All,
I need your help on my 2009 C300 W204.
As my car had problem on auto function of windshield wiper (irregular move while raining), I replaced rain and light sensor attached behind rear view mirror by myself.
It successfully solved the problem.
After a month or so, my car now shows “Auto Lamp Function Inoperative” error message on dashboard.
Can someone help me how to fix the problem?
I have not done any calibration type of work after after replacing the sensor as there were no instruction to do so on instruction I found on the internet.
Thank you for your help.
Sam
I need your help on my 2009 C300 W204.
As my car had problem on auto function of windshield wiper (irregular move while raining), I replaced rain and light sensor attached behind rear view mirror by myself.
It successfully solved the problem.
After a month or so, my car now shows “Auto Lamp Function Inoperative” error message on dashboard.
Can someone help me how to fix the problem?
I have not done any calibration type of work after after replacing the sensor as there were no instruction to do so on instruction I found on the internet.
Thank you for your help.
Sam
Member
Joined: Dec 2017
Posts: 230
Likes: 38
From: NYC
2008 S550 4Matic, 2007 GL450, 2008 C300, 2018 GLE63 AMG
Hello All,
I need your help on my 2009 C300 W204.
As my car had problem on auto function of windshield wiper (irregular move while raining), I replaced rain and light sensor attached behind rear view mirror by myself.
It successfully solved the problem.
After a month or so, my car now shows “Auto Lamp Function Inoperative” error message on dashboard.
Can someone help me how to fix the problem?
I have not done any calibration type of work after after replacing the sensor as there were no instruction to do so on instruction I found on the internet.
Thank you for your help.
Sam
I need your help on my 2009 C300 W204.
As my car had problem on auto function of windshield wiper (irregular move while raining), I replaced rain and light sensor attached behind rear view mirror by myself.
It successfully solved the problem.
After a month or so, my car now shows “Auto Lamp Function Inoperative” error message on dashboard.
Can someone help me how to fix the problem?
I have not done any calibration type of work after after replacing the sensor as there were no instruction to do so on instruction I found on the internet.
Thank you for your help.
Sam
need to paramatize it
Newbie
Joined: Feb 2018
Posts: 2
Likes: 0
2003 Mercedes Benz C230 Kompressor Sport Coupe
Inoperative Lamp Message
Hi Guys, I also replaced the sensor that caused the inoperative lamp on dash. I replaced the sensor and the dash light didn't clear. It still reads Inoperative lamp message. Any ideas on how to get this reset cause its annoying to have this message on my dash. I have an iCarsoft MB2 professional scanner but it don't seem to have that option to have the Inoperative lamp message reset. I have a 2008 C300 Sport model
Last edited by Kompressor6144; Aug 12, 2024 at 06:12 PM. Reason: 2008 C300 Sport
