attn 545i owners
04-29-2009, 09:59 AM
#1
Contributors
Thread Starter
Join Date: Jan 2009
Location: Bay Area California
Posts: 928
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2005 BMW 545i Sport Package, Jet Black
M166 OEM Wheels
M5 Style Body kit
RPI Scoop
BMC Air Filter
Valentine One Radar Detector
35% tint all around
how many of you experienced rough idle (slight vibration when car idles) on 545i or any other n62 engine?
I did some research and there is no certain fix to this. people switched spark plugs, adjusted walve lifters, used different gas, cleaned MAF, used fuel system cleaners, throttle cleaners, changed coils, airfilters, etc..
would be great if we can collect different opinions here and may be find the right answer. thank you
I did some research and there is no certain fix to this. people switched spark plugs, adjusted walve lifters, used different gas, cleaned MAF, used fuel system cleaners, throttle cleaners, changed coils, airfilters, etc..
would be great if we can collect different opinions here and may be find the right answer. thank you
04-29-2009, 10:00 AM
#2
Former Vendor
Join Date: Apr 2008
Location: SoCal
Posts: 5,051
Likes: 0
Received 1 Like
on
1 Post
My Ride: 14 550i
no problems here.
Originally Posted by vlad_b' post='862924' date='Apr 29 2009, 10:59 AM
how many of you experienced rough idle (slight vibration when car idles) on 545i or any other n62 engine?
I did some research and there is no certain fix to this. people switched spark plugs, adjusted walve lifters, used different gas, cleaned MAF, used fuel system cleaners, throttle cleaners, changed coils, airfilters, etc..
would be great if we can collect different opinions here and may be find the right answer. thank you
I did some research and there is no certain fix to this. people switched spark plugs, adjusted walve lifters, used different gas, cleaned MAF, used fuel system cleaners, throttle cleaners, changed coils, airfilters, etc..
would be great if we can collect different opinions here and may be find the right answer. thank you
04-29-2009, 10:06 AM
#3
Contributors
Join Date: Aug 2008
Location: Originally from Koeln, Deutschland. Enjoying it in Bonita Springs, Florida Now :)
Posts: 7,421
Likes: 0
Received 0 Likes
on
0 Posts
The 545i's engine has always been a rougher engine. The 550's engine is a lot smoother. And the I6's are also REALLY smooth. I just cleaner my MAF sensor and used some fuel additive and it is a a lot smoother now.
It doesn't really bother me at all. The idle is really not that bad unless your valve timing is off by a lot.
It doesn't really bother me at all. The idle is really not that bad unless your valve timing is off by a lot.
04-29-2009, 10:12 AM
#4
Contributors
Thread Starter
Join Date: Jan 2009
Location: Bay Area California
Posts: 928
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2005 BMW 545i Sport Package, Jet Black
M166 OEM Wheels
M5 Style Body kit
RPI Scoop
BMC Air Filter
Valentine One Radar Detector
35% tint all around
Originally Posted by Krozi' post='862935' date='Apr 29 2009, 01:06 PM
The 545i's engine has always been a rougher engine. The 550's engine is a lot smoother. And the I6's are also REALLY smooth. I just cleaner my MAF sensor and used some fuel additive and it is a a lot smoother now.
It doesn't really bother me at all. The idle is really not that bad unless your valve timing is off by a lot.
It doesn't really bother me at all. The idle is really not that bad unless your valve timing is off by a lot.
the reason i want to see opinions is because i just read a thread from 545i owner who says: "the engine is so smooth that you can't even tell it's on".. that alerted me that may be something is wrong. I reduced mine to very little by switching spark plugs and using fuel additive. I also updated software. Now will try MAF sensor cleaning, hope it's an easy DIY
vlave timing - is it an expensive fix? how someone can tell if it's off or not?
04-29-2009, 10:20 AM
#5
Contributors
Join Date: Aug 2008
Location: Originally from Koeln, Deutschland. Enjoying it in Bonita Springs, Florida Now :)
Posts: 7,421
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by vlad_b' post='862943' date='Apr 29 2009, 02:12 PM
mine is not that bad either. and, i was told by many people that n62 engine is a rougher one.
the reason i want to see opinions is because i just read a thread from 545i owner who says: "the engine is so smooth that you can't even tell it's on".. that alerted me that may be something is wrong. I reduced mine to very little by switching spark plugs and using fuel additive. I also updated software. Now will try MAF sensor cleaning, hope it's an easy DIY
vlave timing - is it an expensive fix? how someone can tell if it's off or not?
the reason i want to see opinions is because i just read a thread from 545i owner who says: "the engine is so smooth that you can't even tell it's on".. that alerted me that may be something is wrong. I reduced mine to very little by switching spark plugs and using fuel additive. I also updated software. Now will try MAF sensor cleaning, hope it's an easy DIY
vlave timing - is it an expensive fix? how someone can tell if it's off or not?
545i is so smooth you can't tell it's on...
04-29-2009, 10:36 AM
#6
Contributors
Join Date: Oct 2004
Location: So Cal, USA
Posts: 14,776
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 545iSMGSilver GrayAuburn Dakota LeatherLogic 7 Premium SoundSports Package
Originally Posted by Krozi' post='862953' date='Apr 29 2009, 11:20 AM
Who told you the 545i had a smooth engine? I don't think anyone would say the
545i is so smooth you can't tell it's on...
545i is so smooth you can't tell it's on...
04-29-2009, 10:39 AM
#7
Members
Join Date: Aug 2007
Location: North Royalton, Ohio 44133
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2005 BMW 545i; Titanium Silver II; Sport Package; Cold Weather; Navigation; 3M Clear Bra; Alpine IPOD Interface; MOMO GTR Tech 19" Wheels; Heated Wheel; Smoked Hella Taillights
Originally Posted by vlad_b' post='862924' date='Apr 29 2009, 01:59 PM
how many of you experienced rough idle (slight vibration when car idles) on 545i or any other n62 engine?
I did some research and there is no certain fix to this. people switched spark plugs, adjusted walve lifters, used different gas, cleaned MAF, used fuel system cleaners, throttle cleaners, changed coils, airfilters, etc..
would be great if we can collect different opinions here and may be find the right answer. thank you
I did some research and there is no certain fix to this. people switched spark plugs, adjusted walve lifters, used different gas, cleaned MAF, used fuel system cleaners, throttle cleaners, changed coils, airfilters, etc..
would be great if we can collect different opinions here and may be find the right answer. thank you
04-29-2009, 10:39 AM
#8
Senior Members
Join Date: Aug 2007
Location: USA
Posts: 584
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2005 545i E60 Orient Blau Metallic
Premium, NAV, Winter Package, Heads Up Display, Logic 7 Audio, AngeliBright Upgrade [White], M5 Body Kit, M Embroidered Seats
The N62 is a rougher engine.... It's supposed to be a little choppier. I think you need to take care of your MAF sensor and your valve timing only if you have misfires or are dropping fuel economy. I did change my spark plugs because I was having rough starts. But when the engine is warm - idling is like purring....not of a cat, but of a lion!! 
04-29-2009, 11:21 AM
#9
Senior Members
Join Date: Jan 2008
Location: SoCal
Posts: 621
Likes: 0
Received 0 Likes
on
0 Posts
i have 94,XXX miles on mine and i've noticed lately that it tends to be rough and shaky at lights sometimes...i'm thinking after i do the 100K maint. it'll be smoother again. However i don't notice a loss in power or anything, just a slight rough/shaky idle.
