Even your previously well maintained, motorway driven, one owner , warrantied (thus no effort spared to maintain) BMW suffered mostly from mileage, not age related issues. The gearbox, dumpers, the hard working, pumping for prolonged times on long journeys cooling system, fans, bearings etc etc.
I'm sorry but this is not true as I have pointed out to you on numerous occasions. I'll detail it again one last time for your benefit.
The gearbox: Had a broken return spring on 5th. Thats it. A common fault, 30 minutes labour and a new spring at an indy and its good as new. BMW elected to replace the entire transmission instead under warranty. As if I was going to say no?
Dampers: Originally like yourself I simply assumed this was an expected casualty of mileage. But no - on removing the second rear damper it was found that the reason for it failing was not age or mileage but the fact that when this area of the car was worked on (By a nameless yet BMW Authorised workshop) the fuel filler cap breather was left dangling on the wrong position. Over the next 2 years it gradually chaffed at the aluminium casing of the damper until eventually wearing through.
The cooling system: Fails at 4-6 years old. Don't take my word for it - ask the other E39 owners on here. PeterNems went at 90k. Mine went at 150k. Ollys went at 130k. People on BMWLand have had it fail at 30k. 50k. The common factor? All the cars were between 4 and 6 years old.
The pusher fan: This was actually replaced the day before I got the car. But the low mileage 530d in the household has returned from BMW last week having had... oh, a new pusher fan.
Heater blower motor: It's active for the entire time the car runs regardless of mileage. Park outside the fish and chip shop for 30 minutes and cover 0 miles, cover 40 miles in 30 minutes on the M5, it receives the same amount of wear.
The wheel bearing: You can have this one.
Interestingly the most common mileage related failiure on an E39 are the suspension bushings. The car is particularly sensitive to poor bushes as the aluminium suspension must be just right or you get awful vibrations in the cabin (The dreaded E39 shimmy). I was particularly concerned about this as the car was, when I bought it, on its original bushes with the exception of the ARB Droplinks. There was no vibration, but I booked it into BMW to get the suspension bushes checked anyway. Despite this perfect opportunity to fleece me for new bushes they didn't take it and reported them to be fine. At every service, every MOT and every personal inspection between the bushes remain fine. I am as suprised as you are at this - the car is still on its original bushes. I've even got the money tucked away to replace them - yet as yet, nothing. Very suprised but I think it demonstrates how no two cars will wear uniformly over the same mileage.
I'm half tempted to just replace them anyway at some point next year. What harm can it do? But given that most E39's fail MOT's on suspension bushes WELL before 100k...
I will however agree with you and say if I was buying a car of this age I'd chose a lower mileage one. Is that because high mileage is bad? No, its because high mileage is bad when you've no idea how the car was treated. Most 7-10 year old 150k+ BMW's are shabby. Not simply because they did 150k but because they did 150k over all sorts of roads owned by all sorts of random people with all sorts of different ideas as to what constitutes the right way to look after a car.
I am confident my particular car looks feels and drives better than any of those 13-15 year old Jap imports
![Smile :) :)](/styles/default/xenforo/vbSmilies/Normal/smile.gif)
I am also very much aware that my car is not your typical high mileage 'beemer innit'.