S-Max PCM Update

[abutters93]

I’ve got a 2010 S-Max 2.2 TDCi; I’ve heard that a PCM update can improve fuel economy. 
 

My questions are:

- does it work/is it worth doing?

- how do I go about doing it?

 

Thanks in advance!

[DaveT70]

15 hours ago, abutters93 said:

does it work/is it worth doing?

Depends how far behind current level you are and what the update improves. Some PCMs yes, some no

 

15 hours ago, abutters93 said:

how do I go about doing it?

You could book into Ford, it takes about 20 minutes to update PCM, so expect an hour's labour.

If you purchase the V-Linker or OBDLink-EX cable (NOT a cheap Chinese ELM327), download the paid version of FORScan, not the public version, (you will need a paid license) and read the MFU user guide TO THE LETTER on the FORScan Forums, you can do it yourself. PCM update is quite safe, if you follow the guide

[abutters93]

Cheers Dave