2006 S350 petrol Long brake pedal travel -ESP light on occasionally

[widebodysec]

Hi guys, having problem, brake pedal been bit soft and lot of travel. Bleed system, nope! New servo and master cylinder. Nope! Full pressure bleed again . No leaks no air either. Esp comes on and conputer diagnosed air or leak!! Any ideas.? Bit frustrating - Dave

 

[alexanderfoti]

What codes do you have in the esp module when the light comes on?

It takes a lot to get air out when the system has been emptied, including cycling the valves and a few esp related procedures, otherwise you have a soft pedal.

 

[widebodysec]

Will get codes from garage tomorrow

 

[widebodysec]

Here you go codes from scan

 

[alexanderfoti]

There is unfortunately still air in the system

 

[widebodysec]

But we thought not! Having read a different post it sounds so similar Maybe we will try once more then get it and put on star and “Cycle “ the abs. as you mentioned too. It’s annoying and but leakage for sure ! ‍

 

[widebodysec]

There is unfortunately still air in the system

Thanks. Seen another post. Identical and maybe we are missing something like the cycle on abs with Star ! Thank you for your input - will let you know

 

[widebodysec]

But we thought not! Having read a different post it sounds so similar Maybe we will try once more then get it and put on star and “Cycle “ the abs. as you mentioned too. It’s annoying and but leakage for sure ! ‍

Hi well do e all the cycles etc but seems it is the abs block itself - swapping jt and the recycle and hoping for success as changed servo and nothing left really! ‍

 

[mioba]

good luck. frustrating but hope you get there

 

[DREAMER NO2]

Or brake caliper pistons are not returning .

 

[widebodysec]

Forgot to reply guys. In the end it was the Abs block itself, callipers were all ok and it is all as it should be now thankfully.

 

[mattkh]

Forgot to reply guys. In the end it was the Abs block itself,

Thanks for letting us know.
Was the Abs block made by Bosch or Ate or Valeo.

 

[widebodysec]

Sorry i have no idea my
Mechanic sourced and fitted. Was original an original part. Bosch may been mentioned ! ‍