Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to fix the AdBlue system malfunction in the Mercedes C-Class

Model: Mercedes Classe C W205 - Years 2014-2021
Part: AdBlue warning light

Today we will discover the instructions that will allow us to repair the fault in the AdBlue system of the Mercedes C-Class. First of all, we get on board the car and start the instrument panel; the onboard computer will tell us that ignition will not be possible due to the lack of AdBlue fluid refill. Then we connect our diagnostic tool to check the real problem, which is usually caused by the NOX sensor; once we replace this sensor, we will verify that the error has been cleared by refilling the AdBlue fluid and resetting the warning light.

Posted on 24 October 2025 by ScegliAuto

Video tutorial

Related tutorials

How to Reset the AdBlue Light on a Mercedes C-Class?
How to Reset the AdBlue Light on a Mercedes C-Class?
Mercedes Classe C (2021-2026 / W206) .. To reset the AdBlue light on a Mercedes C-Class, you often just need to refill the additive fluid: the light turns on when the level of this fluid.. …
Resetting the AdBlue warning light on the Mercedes C-Class
Resetting the AdBlue warning light on the Mercedes C-Class
Mercedes Classe C (2014-2021 / W205) .. the AdBlue warning light of the Mercedes C-Class, after refilling with AdBlue fluid. First of all, we get into the car and start the instrument.. …
Reset the AdBlue top-up warning for the Mercedes C-Class.
Reset the AdBlue top-up warning for the Mercedes C-Class.
Mercedes Classe C (2014-2021 / W205) .. see how to reset the warning on the Mercedes C-Class. First of all, it will be necessary to top up with the AdBlue can or at the gas station until it.. …

How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

Watch the video!


by ScegliAuto

More videos