F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N47 and N57 Turbodiesel Engine / Drivetrain / Exhaust Modifications > 335d cabin vibration
ARMA SPEED
Post Reply
 
Thread Tools Search this Thread
      01-05-2020, 06:22 AM   #1
Richie35d
New Member
2
Rep
8
Posts

Drives: F31 335d
Join Date: Dec 2019
Location: Ireland

iTrader: (0)

335d cabin vibration

Hi have recently bought a 335d f31 I've noticed in idle I feel small vibration inside car , it doesn't get any worse or any better weather the car is hot or cold , it doesn't idle rough ,pretty smooth actually
Had it in getting serviced and ask mechanics to have look , he said there is a small bit but quiet normal on 35d . Thoughts ?? Should I feel zero vibrations ? Or is it a characteristic of 35d ??
Appreciate 0
      01-05-2020, 04:38 PM   #2
Watsey
Major General
United Kingdom
3515
Rep
6,512
Posts

Drives: F31 330D sDrive M Sport
Join Date: Jun 2015
Location: On sabbatical.

iTrader: (1)

Is it a physical vibration or an audible one ?

The engine covers and air intakes have been known to vibrate (cover), or even to not be interconnected properly (where the air intake pipe joins the back of the air inlet behind the front grille).

Apart from that, even though straight-6 engines are usually inherently well balanced these diesel engines are high compression which can cause some vibration.
__________________
Current : F31 330sD, DMS remap, XHPflashtune, Ohlins Road & Track, Millway Motorsports top mounts, SuperPro poly bushes, Quaife LSD, Stoptech Trophy front BBK / MSport rear discs and calipers, Pagid RSL1 pads all round, H&R/Eibach ARBs, Michelin P4S.
Appreciate 0
      01-05-2020, 04:42 PM   #3
Richie35d
New Member
2
Rep
8
Posts

Drives: F31 335d
Join Date: Dec 2019
Location: Ireland

iTrader: (0)

Quote:
Originally Posted by Watsey View Post
Is it a physical vibration or an audible one ?

The engine covers and air intakes have been known to vibrate (cover), or even to not be interconnected properly (where the air intake pipe joins the back of the air inlet behind the front grille).

Apart from that, even though straight-6 engines are usually inherently well balanced these diesel engines are high compression which can cause some vibration.
Thanks for reply , it's a physical vibration, it's not earth shattering or anything but compared to my diesel Passat it's more noticeable , funny enough I did have a look at the inlet pipe today and even though it clipped in probably there is a lot of movement on it
Appreciate 0
      01-06-2020, 06:47 AM   #4
Watsey
Major General
United Kingdom
3515
Rep
6,512
Posts

Drives: F31 330D sDrive M Sport
Join Date: Jun 2015
Location: On sabbatical.

iTrader: (1)

The air inlet connection can benefit from a few turns of insulating tape on top of the OEM foam tape - this increases the overall diameter and helps the two components mate more sunugly to reduce vibration.
__________________
Current : F31 330sD, DMS remap, XHPflashtune, Ohlins Road & Track, Millway Motorsports top mounts, SuperPro poly bushes, Quaife LSD, Stoptech Trophy front BBK / MSport rear discs and calipers, Pagid RSL1 pads all round, H&R/Eibach ARBs, Michelin P4S.
Appreciate 0
      01-06-2020, 06:50 AM   #5
Richie35d
New Member
2
Rep
8
Posts

Drives: F31 335d
Join Date: Dec 2019
Location: Ireland

iTrader: (0)

Quote:
Originally Posted by Watsey View Post
The air inlet connection can benefit from a few turns of insulating tape on top of the OEM foam tape - this increases the overall diameter and helps the two components mate more sunugly to reduce vibration.
Cool yeah I noticed the pipe is very loose
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 05:10 PM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST