A Class F fault reading

[80plus]

I need help on this one. I had the car serviced at Nationwide Service Centre, which is not a MB specialist garage.
Since then it's been very sluggish and also slow to accelerate. I also had an F fault reading came up on the instrument panel.
I took it back to Nationwide - they drove it around the block and said there was nothing wrong with it - they didn't have a diagnostic machine to read out any faults recorded.
I then took it to have a diagnostic test at a MB specialist garage. They said so many items came up on the diagnostic machine that it was best to clear all the entries then drive the car until the problem recurs. Then they would run the diagnostics again to see what's reported.

The car was driving perfectly well before the service at Nationwide. Could the servicing have caused a fault, and if so, what is the likely cause ?

 

[mattkh]

I also had an F fault reading came up on the instrument panel.

Hi
What does the manual say about the F on the instrument panel.

 

[Cole@MBS]

F stands for "Get your wallet out" new electrical plate or valve body needed!!!

 

[mattkh]

F stands for "Get your wallet out" !!

Hi
In that case this A class is an automatic gearbox I think.

 

[Cole@MBS]

Hi
In that case this A class is an automatic gearbox I think.

If it was a manual it wouldnt have the disply for the autobox, hence it is a auto!!!

 

[BlackC55]

It could be an ACS. They have gear displays.

 

[BlackC55]

If it is a 168

 

[ELGRINGO]

Hi need to know if acs[ semi auto] or fully auto we do regular repairs to ki clutch plates and gear box valve blocks. If acs could be just a matter of replacing brushes.

 

[Alex Crow]

i hope it is sorted by now - this thread is getting on for 2x years old.

 

[ELGRINGO]

Blimey hope so did not notice car worth nothing now!