RobD 41 Report post Posted November 3, 2014 May be an odd / stupid question, but when BMW replaced both turbos on my 335i back in the UK, is it likely they would have also replaced the oil? I'm guessing they would have needed to due to the oil feed lines having to be disconnected? Quote Share this post Link to post Share on other sites
BreakMyWindow 1874 Report post Posted November 3, 2014 You would think so. You could get the oil analyzed which will give you a good indication of it's condition and age. Quote Share this post Link to post Share on other sites
RobD 41 Report post Posted November 3, 2014 (edited) Unfortunately the work was done a couple of years back. I was more curious as there was a decent gap between the oil change prior to turbo replacement and the first oil change noted after the turbo replacement. I just hope they didn't bolt new turbos on and keep the old oil on there. Guess things are all okay though because the car literally uses no oil at all, at least according to the electronic dipstick. Edited November 3, 2014 by RobD Quote Share this post Link to post Share on other sites
yng_750 247 Report post Posted November 3, 2014 Cant change it now anyway. Just stick to good intervals with good oil from now. But i would expect they would have changed it as they usually flush out the lines to rid any metal shaving that may be present if the turbos were failing. Quote Share this post Link to post Share on other sites
RobD 41 Report post Posted November 3, 2014 Definitely. I've had it serviced twice in my 18,000 km of ownership but ideally I'd like to keep intervals down to 5,000 - 7,500 km. Quote Share this post Link to post Share on other sites
