[dradernh]

Originally Posted by ggggbmw

This is a fascinating tool, and at the price definitely something a tool junkie like me should have.

However, when I look at the listing at TMS, they say it's not for BMW's. They list a bunch of other makes, but say it doesn't fit the M235.

Any details on why TMS would say it's not for us?

On this page, ECS Tuning, owner of the former Turner Motorsports parts business, shows that the Contitech Belt Wear Tester is a match for your vehicle: https://www.ecstuning.com/b-conti-te...ntitester~con/.

Originally Posted by F87source

Before we wrap up this review I would like to also quickly summarize when to replace your serpentine belt:

3) When the belt is over 5-6 years old

Overall I recommend bmw owners spare a bit of time and money to do the proper preventative maintenance to take care of your car, otherwise the consequences of not doing so can cost many times more.

Thanks for this review and information. I'll add a serpentine belt replacement into my five-yearly maintenance schedule. Note that this is roughly in line with Mike Miller's recommendation: “Replace O.E. or O.E.M. BMW poly-ribbed serpentine belts every 60,000 miles.” Because I don't drive my car much, time-based intervals better match my car's needs.