Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-18-2018, 10:30 AM
Member
 
Join Date: Oct 2017
Location: London
Posts: 138
svvg is on a distinguished road
4.8i N62 - bogging down on acceleration

Grateful for some thoughts on the following.

Car has 104K miles on it - and I changed the oil, plugs and coil packs at 100K (when I bought the car) - I used the correct Castrol oil, ngk plugs and bosch coil packs, but recently, when accelerating from a standstill, the car seems to bog down a bit and the engine almost sounds like it might stall/revs drop a tiny amount before the car picks up. On hard acceleration is makes a lot of noise and then eventually pulls like a train - whereas on gentle acceleration it pulls very smoothly. The car has good power, is fast and no dash warning lights - but it seems a bit sluggish to get going.

I know my rear subframe bushes are complete gone/collapsed, and I have new ones to put in (just need a spare weekend!) and I've also got new lambda/O2 sensors (simply due to the mileage) - I have no lights on the dash but some historic misfire codes... (so perhaps MAF could do with replacement...?)

Also I want to change the gear box fluid and filter (mindful of potential need to flush again after a few days of use - car has no real history to speak of prior to my ownership...).

Any thoughts other than the issues I've identified and will hopefully be addressing soon? Vanos valves could be gunked up I suppose? Have changed a few on friends' E90s, but they had codes which had popped up and lights on the dash...

Many thanks!
Reply With Quote

Sponsored Links

  #2  
Old 05-18-2018, 10:34 AM
Member
 
Join Date: Mar 2016
Location: USA
Posts: 39
NotAnyoneYouKnow is on a distinguished road
Any noise from directly under the cab? If so, maybe a broken catalytic converter.
Reply With Quote
  #3  
Old 05-18-2018, 11:18 AM
Member
 
Join Date: Oct 2017
Location: London
Posts: 138
svvg is on a distinguished road
No. Nothing untoward. So if accelerating from the lights for example, the revs drop a beat, like it might stall, and then we shoot off...
Reply With Quote
  #4  
Old 05-18-2018, 11:33 AM
Member
 
Join Date: Mar 2016
Location: USA
Posts: 39
NotAnyoneYouKnow is on a distinguished road
I would suspect MAF could be the culprit as well. If it just started, the CEL may trigger soon and give you a better idea.
Reply With Quote
  #5  
Old 05-19-2018, 09:41 PM
Member
 
Join Date: Apr 2011
Location: NEW YORK
Posts: 793
electricalserv x5 is on a distinguished road
change your vanos solenoids...all 4..........
__________________
2006 4.8IS
65K MILES
PURCHASED 7/13
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 02:28 PM.
vBulletin, Copyright 2024, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.