How to turn on the Mercedes hold function on A-Class W177?

Mercedes hold function is a feature that does not need to use your foot to hold the brake when waiting for a red light for a long time. This feature is interested by many car owners and wants to enable it. So how can this feature be enabled on Mercedes cars? Find out with Eurocartool right in the article!

Mercedes Hold function

Mercedes is a brand that is always moving forward and enhancing features to increase the user experience. However, there are many hidden features that users may not know about, including the brake hold function. The Mercedes hold function is a convenient way to keep you safely stopped without having to keep your foot on the pedal all the time, especially when you have to stop for a long time at red lights or in traffic jams.

Mercedes hold function on Taplo

Sometimes, this function has been activated but users do not realize it. To check if it is activated or not, press the brake pedal, as usual, then press the foot again until the words “HOLD” are displayed in the instrument cluster of the vehicle, your vehicle has activated this function.

If your car has not been activated with this feature or brake hold function Mercedes not working,  then this article is for you! Before you start, you need to check if this function is activated or not. Then you will use specialized software and equipment to activate it.

Device requirements when encoding Brake hold function

To code this feature, you need to prepare the following software and equipment:

  • DTS Monaco software: Software for engineers, which is used for offline programming and coding when replacing a certain control box on the vehicle. Their functions include reading, clearing errors, resetting the control box, changing previous setting parameters of the control box, etc.
  • SD Connect C4 device: Diagnose all vehicle systems such as Automatic Transmission, manual transmission (AT, MT), Anti-lock braking system (ABS), Air conditioner system (A / C), Supplemental Restraint System (SRS), Anti-theft system (DASX), Remote lock control system (KEYLESS GO)…; Read and clear errors in all systems in-depth, etc.
  • Xentry diagnostic software
  • Laptop

How to turn on the Brake hold function?

In this article, we will show you how to turn on the Mercedes hold function using DTS Monaco software. This feature can be activated on models such as W204, W906, W204, W156, W164, W166, W212, W213, W221, W222, W253, W156, W164, W205, W222, W251, W166, W117, etc.

Here are the steps to turn on the Hold brake car function on the W117 series.

Step 1: Turn on ignition at level 2

Step 2: Quick test => Start

Step 3: Select ECU: ESP9MFA as in the picture below

Step2 Turn on Mercedes hold function

Step 4: Select Domain: 002 Konfigurationen

Step 3 Turn on Mercedes hold function

Step 5: Change Hold to “ja”.

Step 4 guide turn hold function Mercedes

Step 6: Start coding

Step 7: On Diagnostic Service then selects the SCN feature as shown below

Step 8: Go to Variant coding => select ECU, domain as in step 3 and press do coding

Step 9: Select Diagnostic Service => select Hardreset to reset

Step 10: Select Variant coding and save the coding set

Step 11: In Diagnostic trouble code, select ECU then read DTCs, click to Clear all DTCs


Step 12: Open xentry complete vehicle diagnostics and finish.

After coding to activate the Mercedes HOLD function, Also you can refer to the video tutorial below, it was performed by our technician during the recorded repair process:

Support from Eurocartool

It’s necessary to prepare professional equipment and software to turn on the Mercedes brake hold function. The whole process needs to be performed by experienced technicians as just one wrong “click” will cause a system error, which will waste your time and money. At Eurocartool, there is a team of technicians with over 30 years of experience, who are always ready to guide and advise you.

If you want to turn on the brake hold function but are not sure about the steps or If you have any questions about Mercedes brake hold, please message us for the fastest response and support. please contact us via WhatsApp: +13155472355 for detailed advice and a functionquick response.

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