n54 issues

"Hi, I’m working on an ‘07 N54 engine that I’m refreshing. When setting up the camshaft timing, I used the old bolt to verify everything was in time. I carefully checked the camshaft threads and the bolt, and both were undamaged. The old bolt torqued to spec (20 Nm + 180°) without any issues...

Hello all I am having trouble diagnosing a electrical issues in my 2008 bmw 335xi. The cars cluster is lite up with engine light, transmission light, 4x4 light, seat belts light, e break, tire pressure the steering light (triangle with arrow around it) the foot on break light the clock light and...

Hello guys long story short. N54 lift head gasket once on 17T FBO 550whp. After that i go for build engine rods pistons , cutom exhaust manifold runing single turbo 8hp70 etc... lift head again at 600whp power range turns out that ARP heat studs pull a treath from cyl 6. New cylinder head now...

Hey all, I was wondering if anyone else has the VTT forward facing manifold? I attempted to install mines but was faced with hood clearance issues. The hood seems to rest on top of the TB/charge pipe area not allowing me to close my hood. There's roughly about a 3" gap between the hood and the...

Hi all, first post. Was and am still having overcharged voltage issues for my car. Dash it lit up like a Christmas tree and cluster is not working rpms/speedometer.. wipers are also going off. Battery is new and coded, alternator was replaced and just today I replaced the regulator. Car is still...

Hey guys! I have a e60 535i with the N54 engine and recently after doing the MHD backend flash with the JB4, I noticed a whistling noise coming from the left side of the engine bay ( if you sitting in the driver seat it’s left side), when I get over 80km/h and over 5000 rpms. Does anyone know...

Hello people of SS. I just recently sold my N54 335i and was looking into the N55's due to so many issues that the N54's had. I N54's are known for wastegate rattle, vanos solenoids, cam ledge issues, HPFP, etc, etc...but I'm wondering how much more reliable and/or improved is the N55 engine...