[SD ///M4]

I also recommend waiting until a few months before the factory warranty runs out. There's no reason to buy it now because the price will be the same and it's just money out of your pocket now rather than later.

We bought the BMW Extended Warranty for my wife's 2011 335is Coupe in January 2015, about four months before the original expired. It was money well spent because in addition to a new water pump, a new rear main seal, six new injectors and spark plugs, and two coil packs, they actually replaced the entire engine at 72,000 miles for a spun bearing! This was in addition to a new turbo and charge pipe while still under the original warranty, as well as a few other smaller things.

I did Euro Delivery on my 2016 M4 in May that year. We're buying the extended warranty in January 2020!