35d worsening gas mileage - solved- thermostat/fan/EGR cooler - DIY with pics

[motordavid]

Originally Posted by scollins

Thanks for the write up! We've got a 2010 35d too with about 72,000 miles. Sad that these things can't even make 100k miles without needing some repairs on parts that should realistically last much longer.

+1...as I mentioned in the other 'Diesel Thread', my curiosity on a diesel as a potential replacement for our 13+ yr old E53 is the reason for my interest in these kinds of threads.

I fully realize all cars are mechanical and things break/wear out but some of these stories on the diesels make me wonder how BMW sourced parts and components that seem to fail so early in the life cycle.

The ~$7000 'particulate filter 'job quoted in another thread is another example.

I understand the anecdotal nature of 'this needs repair' or 'that part needs fixing', and that many of us have gotten ~100k miles or more out of their Xs, but most of those stories seem to be from the E53 models vs the newer E70s.

Regardless of how exciting or cool or fun these cars are, (BMWs in general), most/all of the engine, trans and running gear parts/systems should perform for ~100k miles, imo. Maintenance items I get; 'standard' components & systems that seem to last longer on many other species of cars, don't 'seem to' on these babies.

It is almost as if the 4yr/50k mile deal is the 'happy time' and then the poor next owner, or even orig owner is just waiting for the shoe to drop...

I love our '01 E53, and I have been very lucky over the years. But, the stories and my own sense of pessimism give me pause on my own car, as do they diesel stories, in considering a new X, gas or diesel.
GL, mD

PS: Helluva write up by sgrice, by the way.