ESP UNAVAILABLE , FAULTY VISIT WORKSHOP

[merc85]

Mercedes w203 2005 c220 cdi

1st First turn of the ignition key, the car displays "ESP UNAVAILABLE"
Start the engine and it says "ESP FAULTY VISIT WORKSHOP"

The car has a had a replacement squib ring, Airbag ring. and it was been re calibrated but it still displays the above faults.

Code reader

C1161 rotation speed and lateral accelerator sensor
C1173 steering angle sensor n49 plausable error
C1036 steering column module n80 control unit
C1172 steering angle sensor n49 internal fault

It's a friends car just wondered if anyone has any ideas of whats up.

 

[mersum1es]

Right part number, clock spiral set up right, steering wheel dead straight?

What code reader shows for those faulty sensor readings (steering angle, accelerator sensor)?

 

[BlackC55]

You may need to carry out a "road test". Its a technique that is used to set up the esp system. The test is on a Star and it involves driving at a certain speed with the steering at certain angle. I can't remember it of the top of my head.

Are the values of those items logged with codes have workable live data? Eg are you getting a steering angle value?

 

[merc85]

Yes,

and the code reader was

Solus Ultra

 

[merc85]

You may need to carry out a "road test". Its a technique that is used to set up the esp system. The test is on a Star and it involves driving at a certain speed with the steering at certain angle. I can't remember it of the top of my head.

Are the values of those items logged with codes have workable live data? Eg are you getting a steering angle value?

Thankyou Sir, i will advise

I will find out re Live data

 

[merc85]

Hi, @BlackC55

Steering angle was within tolerance, "0.15" live data, steering wheel was straight ahead engine running

Many thanks perhaps Star will be required

 

[BlackC55]

It could be other things too btw.

 

[pmcgsmurf]

I had "Check component N49 (Steering angle sensor)" on the E55.

Stripping and cleaning the sensor sorted it.

 

[merc85]

It could be other things too btw.

Of course, i do appreciate your time sir. Thankyou

 

[merc85]

Thankyou Pat i will let him know, i remember your post

Found your post

Familiar E55 W211 Moved to New Home Further North | Members Gallery

Here are the bearing types I'm going to use to rebuild the pulleys. FAG 6303-2RSR-C3 FAG 6203-C-2HRS-C3 The bearings should last longer since they have the seals fitted rather than just the metal ones on the originals.

forums.mbclub.co.uk

 

[merc85]

So just a update as sometimes we don't get to know what the cure was... We made a couple of video's on my Youtube channel, Excuse the expletives we do like banter when we work on cars lol.

"Yaw" Controller replacement, We did have a little chuckle doing this one.... haha

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Squib ring Replacement Which cured the ESP unavailable display on the dash as replacing the YAW controller didnt.
The cars steering had tobe turned lock to lock then driven aprox 3 miles then warning then went out.

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Did one on Removing the Steering wheel too.

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