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  1. fluctuating revs on first start ?

    BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    as above having this prob for a while to rectify it ive been turning off key and restarting which after 10 secs it settles to 500rpm from 1000 plus !! so having had a first chance to look at it today i noticed one of the four bolts thaat hold throttle body on missing bottom left to be exact ...
  2. Jumpy revs 318i 59 plate

    Auto Electrical Forum
    Hello all . On start up from not being driven overnight car is a bit lumpy on idle and revs start off aboht 1100 rpm for a bit then drop to maybe 700 no problem there . Then they bounce up n down In a “lumpy “ manner maybe 100-200rpm nothing major . Don’t think vacuum leak so guessing coil...
  3. 2008 BMW 520d msport manual - sluggish acceleration, hesitation, poor power in low revs

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi guys, Ive got a 2008 520d msport 177bhp (150k mile) m47 engine and i've been having problems with the car being underpowered at low revs. The car accelerates sluggishly up until 2k rpm but it seems the turbo doesnt fully kick in until 2.5k rpm If you drive the car hard it seems drives well...
  4. Juddering at low revs

    General BMW Discussions
    Hi, bought my 2014 BMW 4 series automatic a few months ago and noticed it starting juddering at low revs. It's been back to BMW who say they have fixed the problem but they haven't. Now BMW are offering a transmission dampening box costing £3000 but I'm not convinced it will solve the problem...
  5. fluctuating revs on cold start !!

    BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    hi guys strange one this !! so i had on cold start fluctuating revs 800 -1100 then drops off to 400 got the diags on it and came up with a code relating to hot film mass sensor so i ordered a replacement fitted it and all was fine for a day or so now symtons are back again ! and the only way i...
  6. M43 Revs drop, vibration

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi guys, just recently got my e46 m43 back on the road(garaged for 4 years), going well but one annoying issue. The revs are stable at around 750rpm in park or neutral, but once in drive or reverse they drop to around 500rpm and a vibration is felt through the car, this vibration gets worse...
  7. 04 320d.. New lambda sensor and air mass sensor..stange revs!

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi all, as says above, just fitted 2 new sensors. I was getting bad jerky acceleration between 1-2 thousand revs, which kicked in when car heated up, and other posts seemed to point to these 2 sensors. Fitted them yesterday, and now, when i start the car and ticking over, every 5 secons there...
  8. weak revs and stalling

    General BMW Discussions
    My 1996 328i has started to rev low, sputter and now stall out. Was a power house up till now. Filters changed and redux added but still stalling. Any thoughts on cam shaft sensor or fuel pump? Thanks KPF
  9. lacking in power low revs

    BMW 3 Series Forum - Technical Talk on the BMW E46
    hi just got a bmw 316ti se 2003 model it is lacking in power low rev range could anyone give any suggestions to what may be the cause?? ive heard of vanos o rings could be an issue? thanks
  10. x5 3.0D Intermittant Power loss low REVS

    BMW X Series - Tech Talk For All Gen Of X Series
    Hi Everyone. I posted earlier about my X5 being jerky and dead in the power range at random times. I traced it down to if I disconnected the vacuum pipe from the EGR, I got my power back to normal but got the EGR error obviously. I thought it was the solenoid controlling the vacuum to the EGR...
  11. M4 with Rattle at 1700 Revs

    BMW 4 Series - Tech Talk F32,F33,F36,F82,F83
    Hi This is my first post, prompted by an issue I have with my car. What better place to air it! In April 2018 I purchased a March 2016, BMW M4 DCT from a BMW dealer near Manchester (19,500 miles on the clock - it now has about 25K). Its my dream car, having owned 320Ds, a 330D and a 430D...
  12. Code 3F40, revs fluctuate at idle, occasional failure to start

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Code 3F40, revs fluctuate at idle, occasional failure to start (FIXED) This week my 320d turned over but failed to start on three occasions, each time the engine eventually fired on second attempt, when allowing the engine to turn over for much longer. INPA error memory has code 3F40 'commen...
  13. no power steering at low revs

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hi Gents, and ladies, I have a 2007 320i e91 and had no problems when I bought the car but has developed a power steering issue at low revs, there are no fluid leaks and levels are where they should be. if i'm at idle and turn the steering its really heavy and no assistance, however if I rev...
  14. E92 320d revs hunting on startup

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hi, I have a 2008 E92 320d m sport. It's done about 137k miles. On startup it's started to hunt. It starts up then the revs bounce up and down for a few seconds until in calms down the normal idle. Seems better when it's warmer and worse when it's cold. But I've just fitted a tuning box and it...
  15. 1995 840i Revs dropping to almost stalling on deceleration

    BMW 8 Series Forum - Technical Talk on the BMW E31
    I have this very annoying problem where I release the accelerator pedal whilst slowing down and the revs drop right down to almost cutting out. This is every time consistently. The car runs faultless other than this. Good acceleration and seems to want to go on to max speed on the motorways. In...
  16. F30 320d Manual - Vibration when revs drop from 2,500r amd higher

    General BMW Discussions
    I have an F30 320d with 85k miles on the clock. The car drives smoothly, all the power and acceleration is there, however, if I drive more aggressively and change up gears at revs higher than 2,500 rpm then there is a strong vibration at the point of gear change. I've done some texting and...
  17. Low revs

    BMW 1 Series - Tech Talk For All Gen Of 1 Series
    Hi everyone. My daughter has a bmw 1 114i. This morning she was driving to work when the car wouldn’t go above 2 revs. Then as she went further it kicked in back to normal. Any advice. As we are clueless. Thanks in advance. Worried mum
  18. BMW E46 325CI 2004 auto occasionally struggling to maintain revs at a constant speed

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi guys, I am new to this forum and forums in general so I apologise if this particular problem has been covered before. I have recently purchased a 2004 325ci auto. The car has covered roughly 128,000. I really hoping someone can shed some light on a problem that I am having with it? I have...
  19. e60 530d erratic revs around 1500k

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi all, looking for a little help. Not had this car long - has a very annoying issue at around 1500rpm. The throttle bounces up and down, very jittery, this happens in any gear and causes dead spots and surging whilst driving. Took the car to a very reputable gearbox specialist near here...
  20. [1998 Z3 1.9i] New-to-me Z3: creaking noises from rear that increase with/match revs?

    BMW Z Series - Tech Talk Z1, Z3, Z4, Z8, Z9
    Hi. So - first post other than the introductory one. I have a 1998 Z3 which is in reasonable condition for age and mileage. Bought it yesterday - annoyingly a sound started straight after that hadn't happened on the test drive. Started when a passenger sat in the car, although the previous...