Hi, I too would appreciate knowing the answer to the above-posted question. I am considering a used X1 Xdrive 28i but have, of course, no desire to buy a car w/ a flawed chain guide design. Thanks

 

This document from the NHTSA website regarding the extended warranty is pretty clear that a production date before about February 28, 2015 is when you have the old N20 valve chain guides.

https://static.nhtsa.gov/odi/tsbs/2021/MC-10204534-9999.pdf

 

Very much appreciated. Thank you!

 

I had a 2014 X1 Xdrive 28i for almost 9 years. Bought it new. It was very reliable. I traded it in this spring on a 2019 CPO 4-Series Gran Coupe. One of the reasons was I had an "old" N20 and it was either have the chain, guides and tensioner done or risk a failure that could mean a new engine. If the one you are considering has the old guides, ask for documentation that they were changed. If not,ask for a price reduction to help pay for the work. The percentage of old N20s that have had this failure is small, but if it happens to you it's a big deal.

 

Great advice. I was curious about the percentage of vehicles during the '13-'14 model years that had the issue. I am seriously considering the 35i inline 6 because there seems to be no systemic issues w/ that engine. Thanks

 

Well, I have found a 2015 X1 xdrive 28i that has a production date of 6/15. From what i can tell its an N20 engine without the faulty chain guide and produced before BMW switched away from the rear-wheel drive platform to the front wheel drive platform. Seeing as Model year 2016 X1's were rolling off the production lines in mid to late 2015...does anyone know what month in 2015 the 2016 model year vehicles started to be produced? Also, checking the Vin # on my potential new purchase, I see that it shares the same WBAVL beginning as the 2014s and 2013s. When I look at the 2016 vin #'s they all start with WBXHT. I assume this is a sure fire sign that I am getting the 2013-2015 body style and the slightly more HP engine and the rear wheel drive platform( which is what I want). Can anyone confirm this for me?
Thanks

 

A 2015 X1 will be the last of the first generation and with the N20 engine. The second generation began with the 2016 models. Completely different vehicles from chassis, engine, transmission, etc.