WOW!!! 137,000 is very impressive without any major issues or flaws. I've been holding out on purchasing an extended warranty because I feel like it might be a waste of money. I purchased an extended warranty for $3,600 when I had my 2010 L322 and I only used it once when the air compressor went out at around 75,000 miles. I get the feeling that my L405 is going to be just as reliable as my L322 was. I sold the L322 with around 79,800 miles on it.137,000 miles. NA V8 Engine. One replacement of a metal coolant pipe on the top of the engine around 120,000 miles. Otherwise no fatal flaws and utterly reliable. Just filters, brakes, alignments, rotations, and oil changes. Front air struts around 90,000 miles, but those are available as rebuilds now. Probably will do some additional preventative maintenance before summer though.
Water pump approximately $1200 at the dealer. Air compressor approximately $1400 at the dealer (2013 RRSC)Would be good to know the costs for common repairs such as water pump, air compressor, coolant line for those debating whether to purchase extended warranty or self insure.