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Originally Posted by andrewwynn
Great feedback. I've done timing chain replacement and know what signs to pay attention to avoid needing it also the 100k on the clock max is critical to the possibility of the 50i
Adaptive drive (anti roll) if the system breaks it reverts to normal roll anti sway as the system works by just twisting the anti-sway bar.
If the electronics fail, a normal day bar can be swapped.
I'm more concerned about m esoteric water pumps. I read that one of the e70 power plants has an exceptionally expensive pump. Id like to know which pump as I can determine from VIN which pump a candidate car has.
I've been paying $3 for premium when I fill up at Sam's club. It's about 3.50 at normal stations near me. Diesel is $2.80 @ Sam's and about $3.00 at normal stations.
I was using highway mpg for the cost per mile as 90% of my driving is between Racine and Chicago, also we do road trips.
If I can find active drive on 35d that might seal a deal but it's very difficult to determine from listings if the car has it.
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Have you replaced the timing chains on an N63? Google it.
https://www.youtube.com/watch?v=TAnc3mHF7x0 (exactly the same procedure for the X5 50i.) Not exactly a weekend-DIY project.
The electric water pump median price is ~$500, includes pump, thermostat and coolant. Same pump used across the line. And easier to replace on an X5 35i than a 3series. Loads more room to work. Not the simplest of tasks, but easier.
35i electric water pump
35d has mechanical water pump only
50i and M50dx have both mechanical and electric water pumps.
If the Adaptive Drive is not putting you off, then the electric water pump should not either. Water pumps fail, it is a maintenance item.
To find out what options a vehicle has, you will have to run the VIN. Nobody's add will accurately list any options on a vehicle. One site shows every car for sale as 'natural gas.' Car sales people do not know the product they are selling. They know the people who are going to buy at their lot.