The popular kit for T1N Sprinters now available for NCV3 Sprinters / OM642 equipped vehicles!
The glow plugs (6 of them on OM642) are OEM BERU (4.4 volt steel) and are HIGHLY recommended over the “auto parts store” glow plugs that I personally have seen only last ONE YEAR!
I am now recommending that the Glow Plugs and Glow Plug Module be changed out as a part of the 100K mile or 10 year (which ever comes first) maintenance schedule.