Help needed - Run Flat Indicator Inactive

Sep 14, 2017 | 02:22 PM

-AJC-

Thread Starter

Junior Member

Joined: May 2017

Posts: 62

Likes: 6

From: Surrey, UK

2006 ML 320 CDI

Help needed - Run Flat Indicator Inactive

Hi, I have a 2006 ML 320 CDI.

With the engine running when I scroll to the Run Flat menu I have this message:

The owners manual has the following info:

However, the "Menu: R-Button" is not displayed?

I have tried adjusting the tyre pressures, checked fuses, pressed steering wheel buttons in countless configurations but to no effect.

Anyone have any ideas?

Sep 16, 2017 | 05:23 AM

flybd5

Super Member

Joined: Jun 2014

Posts: 507

Likes: 25

From: Massachusetts

2014 Smart ForTwo Passion Cabrio

Quote:

Originally Posted by -AJC-

However, the "Menu: R-Button" is not displayed?

What happens when you press the R button anyway when the display says that the Run Flat Indicator is inactive?

Sep 17, 2017 | 10:18 AM

Maj. Dundee

MBWorld Fanatic!

Joined: Oct 2011

Posts: 7,107

Likes: 765

From: Bronx, N.Y.

2002 ML 320 & 2006 ML500

M/B doesn't tell you everything in the owner's manual. You will have to check for stored codes in the ESP/BAS Module.

Attached Files

Tire Pressure Monitor TSB.PDF (33.8 KB, 997 views)

Sep 17, 2017 | 05:27 PM

-AJC-

Thread Starter

Junior Member

Joined: May 2017

Posts: 62

Likes: 6

From: Surrey, UK

2006 ML 320 CDI

Quote:

Originally Posted by flybd5

What happens when you press the R button anyway when the display says that the Run Flat Indicator is inactive?

Nothing happens when I press the R button, or hold it pressed etc.

Sep 17, 2017 | 05:30 PM

-AJC-

Thread Starter

Junior Member

Joined: May 2017

Posts: 62

Likes: 6

From: Surrey, UK

2006 ML 320 CDI

Quote:

Originally Posted by Maj. Dundee

M/B doesn't tell you everything in the owner's manual. You will have to check for stored codes in the ESP/BAS Module.

Thanks, I'll get it scanned and see if any old codes remain. It has had a history of ESP error messages before I replaced the Steering Angle Sensor so likely that an old code will need to be removed.

Sep 20, 2017 | 09:04 AM

-AJC-

Thread Starter

Junior Member

Joined: May 2017

Posts: 62

Likes: 6

From: Surrey, UK

2006 ML 320 CDI

Ok checked for stored codes in ESP/ABS module but nothing. Any other ideas?

Sep 21, 2017 | 04:39 AM

Maj. Dundee

MBWorld Fanatic!

Joined: Oct 2011

Posts: 7,107

Likes: 765

From: Bronx, N.Y.

2002 ML 320 & 2006 ML500

Quote:

Originally Posted by -AJC-

Ok checked for stored codes in ESP/ABS module but nothing. Any other ideas?

Is your scanner capable of reading the 40 modules in the truck? Look at all the possibilities just for the run flat program.

Attached Files

DTC Run Flat.pdf (57.4 KB, 1568 views)

Last edited by Maj. Dundee; Sep 21, 2017 at 05:10 AM.

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Sep 22, 2017 | 11:50 AM

Maj. Dundee

MBWorld Fanatic!

Joined: Oct 2011

Posts: 7,107

Likes: 765

From: Bronx, N.Y.

2002 ML 320 & 2006 ML500

Quote:

Originally Posted by -AJC-

If I buy an iCarsoft MB II OBD reader will this be suitable? My local indie charges £60 per 15 min to use his STAR machine!

I have no knowledge of iCar scanner. You can buy this one from Amazon and it can read every module.

Attached Thumbnails

Help needed - Run Flat Indicator Inactive-2017-09-22_114901.jpg

Oct 21, 2017 | 08:02 AM

#10

-AJC-

Thread Starter

Junior Member

Joined: May 2017

Posts: 62

Likes: 6

From: Surrey, UK

2006 ML 320 CDI

SOLVED

Quote:

Originally Posted by Maj. Dundee

M/B doesn't tell you everything in the owner's manual. You will have to check for stored codes in the ESP/BAS Module.

Thanks Maj. Dundee you were right.

Went to a different MB specialist with STAR and he found a menu in the ESP/ABS Module that gives you the option to activate or deactivate the Run Flat Indicator. Hey presto, if you activate the system the "Menu: R-Button" appears.

So if "Menu: R-Button" is not displayed on your dash when scrolling to the Run Flat menu then the system has been deactivated and you need to follow the steps above.

Last edited by -AJC-; Oct 21, 2017 at 08:08 AM.

Oct 21, 2017 | 08:35 AM

#11

flybd5

Super Member

Joined: Jun 2014

Posts: 507

Likes: 25

From: Massachusetts

2014 Smart ForTwo Passion Cabrio

Quote:

Originally Posted by -AJC-

Thanks Maj. Dundee you were right.
Went to a different MB specialist with STAR and he found a menu in the ESP/ABS Module that gives you the option to activate or deactivate the Run Flat Indicator. Hey presto, if you activate the system the "Menu: R-Button" appears.
So if "Menu: R-Button" is not displayed on your dash when scrolling to the Run Flat menu then the system has been deactivated and you need to follow the steps above.

Perfect example of what I teach my students when it comes to any kind of tool. You don't take your car to a mechanic because he/she has shiny tools, you do so because he/she knows how to use them. And you can't fix an incompetent mechanic by giving them a gift certificate to the tool truck. Any tool is only as good as the human behind it.

I also use this example of a very simple tool that has saved billions of dollars and countless hours of time, but if you don't know how to use it, it'll ruin whatever you are working on.