Hello, I have a 2013 SD4 Auto.

I am going to replace the MAF to see if it improves economy at all. I was wondering whether all years use the same part, or do later ones use a defend one?

Thanks
Mark

Are you sure that your MPG is not normal.

The SD4 is not known for economy, this thread (and my own experience) indicates that 33 - 36 MPG is about right for a normally driven SD4.

https://www.freel2.com/forum/topic10566.ht...;start=885 FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 77k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

Mrdeli100 wrote:

Hello, I have a 2013 SD4 Auto.

I am going to replace the MAF to see if it improves economy at all. I was wondering whether all years use the same part, or do later ones use a defend one?

Thanks
Mark