My G31 540i was ordered in SE spec, with 17 inch wheels. BMW's with run flats are hard enough thank you without removing depth of rubber making them harder.
"M" at the end* is a con, its no more powerful, you get harder springs, blue calipers (same brakes, just blue) and a badge. I did however spec adaptive suspension, which is fab and in sport mode, better handling than M springs.
Reliability? 7 years, 100k miles. New VAnos solenoids needed (its more or less a high mileage service part). Drive shaft donut coupling mangled, broken wire in air suspension is all its needed above servicing (12k oil changes not the silly 18k condition based /sealed for life rubbish). Its been driven hard.
Happy it will last another 7 /100k miles with servicing - tho it will need an x-drive transfer box rebuild in about 40k miles - this one is starting to chatter a bit on hard acceleration/split mu scenarios.
*M at the beginning is a different ball game, an M540 has 100 more HP than a 540M
Last edited by: Zero on Thu 12 Dec 24 at 08:30
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