dukedkt442. Cam cover (valve cover), oil pan, or rear main seal are the likely culprits for that oil leak. If oil can come out, air can go in, and you have a vacuum leak, which is likely pretty severe if you can hear it (the whistling). Another common source of the whistling is a bad PCV system, which is integral to the cam cover on the N52n Thanks! I've driven another N55 for 100,000 miles with NO problems, just routine oil changes and that's it so I have faith in the N55s but I just don't know if this 335i has been tuned or had anything that could compromise long term reliability. Best F30 suspension upgrade options. My car has ~38K miles and it is so wobbly and bouncy on the freeway. I got my suspension and alignment checked and all are within spec. I'm running the right pressure as well. I am thinking that its just the F30 suspension that is terrible on the freeway and as the tires wear out the ride gets worse and worse. I bought a 335i f30 2012, early production 11/2011. It had 55k miles at the time of purchase on Jan 2021. So past owner drove 6k/year on average. PPI indicated a good condition on the engine and transmission, suspension, brakes and overall build. In today's video I wanted to delve into some of the most common issues with the BMW F-Series N55. This is a topic which many have asked me to create a video BMW N54 Common Problems. N55 Common Engine Problems. BMW B58 Common Problems. BMW F30 35i vs 40i Summary. There are plenty of other minor differences we didn’t cover in this article. However, the 340i is the same car as the 335i in many ways. They’re both intended for the same target market and share many things in common. Moving on, under the 335i’s hood is BMW’s award winning TwinPower Turbo 3.0L inline-six with 306 hp and 400 Nm, good enough to propel the saloon to a 0-100 km/h time of just 5.5 seconds. 1639 posts · Joined 2012. #2 · Oct 17, 2015 (Edited) First bimmer ever bought 3 years ago 37,000m 2007 335i and never regretted it. Only maintenance was abs done under BMW warranty renewed annually for about £500. Drive one and then decide. z3Q4qL.

bmw f30 335i common problems