Engine oil too high-Reduce oil level
What could happen down the road? My cousin wanted to borrow my low mileage 2019 3.0L V6 turbo diesel Sprinter for a trip to their son’s wedding out east.
I consented and had them have a “B” service done before they left. A week and 1,200 miles later I learned that they started out while driving the freshly serviced van with an engine oil too high warning. They claim the dealer doing the service told them to cancel that warning and drive as the filter would fill and reduce the oil level. Apparently they kept driving and cancelling that repeating warning for about 1,200 miles till they got to the bride’s parents’ home. They tried one more time to cancel the warning to go to their next destination but now the van was in lock-out mode.
To get back on the road, cousin had my van transported 250 miles and was sold an oil change but no diagnostics were done. They drove on home with a reduced oil level and no warning message. Is all well? Is trouble brewing in the DPF and/or catalytic converter?
What should I test to see if the oil foamed or the pressure caused damage during that 1,200 miles trek with too much oil?
Thanks for your insights. I am hoping my generosity isn’t going to cause future issues with my van.