Found out it was a loose bracket connected to the exhaust manifold head shield after doing my headers. lol vanos is fine.
Found out it was a loose bracket connected to the exhaust manifold head shield after doing my headers. lol vanos is fine.
-Be yourself; everyone else is already taken.
ZHP Pre-Ride Briefing
2005 ZHP, Alcantara, Silver Cube, Nav, Sharked, BMW Perf Intake, BMW Perf CF Strut Brace, CF Valve/Fuel Rail Covers,
Shadowline Grills, CF Splitters, Fog Light Inserts, Euro-mirrors, CDV Delete, Beisan vanos, GAS DISA, BP Coded
I am getting the rattling sound only on cold start up. I actually never stood in front of the engine to pinpoint the source of the sound, but it is also only for a half second and sounds like 'marbles in a tin can'. Can i be pretty sure the vanos is the culprit?
If you google e46 VANOS rattle, you see some YouTube videos, compare your sound with them...
Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
H&R sport springs, UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers
You know, i'll be honest, it sounds different. I should have recorded the sound, but it is just a very sharp, loud, half second rattle on cold start (like 4 hours).
https://www.youtube.com/watch?v=29fdzGxsBr0
Sounds exactly like this, but I don't know if it is truly the vanos.
Hot/warm starts don't have even a hint of it. Now I am thinking, should i even bother sending my unit to dr. vanos, if it may not even be the source of the sound. The only problem is, I don't want to put the engine back together, diagnose the sound, find out it IS the vanos, and have to tear open my valve cover again to take the vanos out.
Last edited by papa_g; 11-13-2017 at 12:33 PM.
I would not mess with the vanos unless you are absolutely sure that is what is causing the noise. Could it be something like this:
http://www.bimmerfest.com/forums/showthread.php?t=76452