The big BANG theory
04-17-2011, 04:29 PM
#1
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My Ride: 545i
So I am driving my 545i at a speed of 50Kmh, feathering the gas pedal, and all of a sudden there is big bang, the car jumps as if the car is changing gears but it's slamming so violently.
This only happens on occasion, I am wondering if this is a transmission issue or an engine issue?
Thanks
This only happens on occasion, I am wondering if this is a transmission issue or an engine issue?
Thanks
04-17-2011, 05:03 PM
#2
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My Ride: E60 530d MSport Auto, 19" 172 Spiders on ContiSports 2's, Pro Nav, Adaptive Xenons, Bruce M's V6 Rear LCI Cables/Lights, Number plate LED
Maybe get your SA to do a software update. I had a similar experience which was resolved after a software update.
04-17-2011, 05:17 PM
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My Ride: E60 530d MSport Auto, 19" 172 Spiders on ContiSports 2's, Pro Nav, Adaptive Xenons, Bruce M's V6 Rear LCI Cables/Lights, Number plate LED
No worries, I hope this update helps.
On another note, we don't get many 545's here in the UK, but saw one whizz by the other day on the M1 motorway. Was a beast! Must be amazing to drive. Over here 535's are seen as the daddy's on 5ers until you get to the M's!
04-17-2011, 07:21 PM
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My Ride: 2006 BMW 550i
04-17-2011, 08:49 PM
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i just bought my 2008 535xi couple months ago and wanted to upgrade my ECU to get more out of the turbos...do you suggest a system thats user friendly or gets the best bang for the buck?
04-19-2011, 03:46 AM
#8
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My Ride: 2008 535i: June 6th start build, complete June 17th, at NY Port July 5th, at dealer July 10th, took delivery Friday July 13- Plantimum Bronze/Natural Brown Leather/Light Poplar, Sport Package, Sport Auto, Active Steering, Premium Package, CWP & PDC. Dinan Performance Software 384hp & 421 ft/lbs.
Never had a problem.
04-26-2011, 03:04 PM
#9
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My Ride: 545i
I was just able to reproduce this issue and hope it's not a major problem 
The car stutters every 5 seconds when it's in fifth gear (especially when in DS mode or M mode) basically the engine stutters as if it's being cut off from the fuel supply when feathering the gas or accelerating. This is not the transmission I think as the car is not hunting for gears.
This is more engine related, however nothing happens when is 1st,2nd 3rd, 4th or sixth gear. Very interesting!
Any idea why this is happening?
2004 545i automatic.
The car stutters every 5 seconds when it's in fifth gear (especially when in DS mode or M mode) basically the engine stutters as if it's being cut off from the fuel supply when feathering the gas or accelerating. This is not the transmission I think as the car is not hunting for gears.
This is more engine related, however nothing happens when is 1st,2nd 3rd, 4th or sixth gear. Very interesting!
Any idea why this is happening?
2004 545i automatic.
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