F30 335i Whine

jeppe777 · 09-08-2016, 02:40 AM

I have a a whining noise on deceleration, between 2000rpm and 3500rpm.
Only happens when I accelerate on part throttle and let off.

Noise only occurs on deceleration low rpm, does not happen at idle or wot.

Car suffered from PCV Failure and as such had a sequel, howl on idle and during coasting.
I had the Valve Cover, Front and Rear main seals replaced which rectified the issue however this noise similar.

I am hoping this isnt a botched job as it was done at the dealer.

No warranty
Video is contiunous part throttle and letting off.

claude1604 · 09-09-2016, 01:24 AM

Cant really tell or hear the sound on the video. Any soundclips from inside the cabin. THe sound does it comes from the driver side or passenger side. I had a similar issue and also from SA but not sure if it is the same. PM your whatsapp number then we can chat? Howling during cruise can be wide variety (default waste gate position, boost leak hot/cold side DV valve) but will require more detail to narrow down.

_bdiddyb_ · 09-09-2016, 11:10 AM

I don't think even Jesus can diagnose your problem with this annoying video recording. C'mon man, all we heard is wind noise and music.

Wires · 09-09-2016, 07:14 PM

That was my thoughts as well. There is some nice wind noise though! Is it an auto? Tranny related?

09-08-2016, 02:40 AM	#1
jeppe777 Private 16 Rep 70 Posts Drives: F30 335i Join Date: Aug 2013 Location: SA iTrader: (0)	F30 335i Whine I have a a whining noise on deceleration, between 2000rpm and 3500rpm. Only happens when I accelerate on part throttle and let off. Noise only occurs on deceleration low rpm, does not happen at idle or wot. Car suffered from PCV Failure and as such had a sequel, howl on idle and during coasting. I had the Valve Cover, Front and Rear main seals replaced which rectified the issue however this noise similar. I am hoping this isnt a botched job as it was done at the dealer. No warranty Video is contiunous part throttle and letting off.
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09-09-2016, 01:24 AM	#2
claude1604 New Member 2 Rep 7 Posts Drives: F30 335 Join Date: Jul 2016 Location: Cape Town iTrader: (0)	Cant really tell or hear the sound on the video. Any soundclips from inside the cabin. THe sound does it comes from the driver side or passenger side. I had a similar issue and also from SA but not sure if it is the same. PM your whatsapp number then we can chat? Howling during cruise can be wide variety (default waste gate position, boost leak hot/cold side DV valve) but will require more detail to narrow down. __________________ F30 335i \| Akarpovic Evo Exhaust\| F30 EWG Specific\| JB4 board with EWG Harness and flexi fuel wires\| BMS Intake\| ER Downpipe\| ER Intercooler\| ER Chargepipe\| RennZport boost pipe\| GFB Diverter Valve DV \| Pure Stage 2 Turbo\| Pure Stage turbo inlet pipe\| Stage 2 Fuel-it LPFP\| RennZport Thermostat\| Fuel-it Platinum Tbi-Kit (Includes upgraded fuel lines and ethanol sensor) triggered via FSB\| N20 plugs gapped @ 0.018"\| N20 Tmap sensor\| bootmod3
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09-09-2016, 11:10 AM	#3
_bdiddyb_ Lieutenant 215 Rep 558 Posts Drives: 2013 335i Join Date: Aug 2013 Location: California iTrader: (1)	I don't think even Jesus can diagnose your problem with this annoying video recording. C'mon man, all we heard is wind noise and music.
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09-09-2016, 07:14 PM	#4
Wires Brigadier General 1663 Rep 4,908 Posts Drives: 2016 340i xDrive Join Date: Apr 2008 Location: Calgary iTrader: (0)	That was my thoughts as well. There is some nice wind noise though! Is it an auto? Tranny related?
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