M3 power
Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW ///M Power
Forum Discription: Ask your BMW M Power Technical Questions here (M1, M2 hybrids, M3, M5 & M6)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=48739
Printed Date: 27-April-2024 at 15:00
Topic: M3 power
Posted By: Mr Fixit
Subject: M3 power
Date Posted: 24-January-2012 at 10:42
I have an E46 M3 and that seems to lack urgency over 6000 rpm. Continies to rev Ok but does not seem to generate much more power;- Ideas 
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Replies:
Posted By: UweM3
Date Posted: 26-January-2012 at 17:48
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-- plug diagnostic in and read fault codes -- stick it on a rolling road to see where the power drops off. ------------- E61 520d, slow and buzzy but my wallet likes the mpg..... |
Posted By: Andrew Rolland
Date Posted: 26-January-2012 at 21:38
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If no fault codes are logged it could just be a drop off in performance from dirty/worn bits like spark plugs, fuel injectors, air flow sensor, engine breather hoses. None of these will drop a fault code if dirty until they get to a certain level but performance could be down by then. One word of warning re-rolling roads. Your car is relatively sophisticated and will need to be 'told' that it is on a rolling road other wise the ECU will get confused when the rear wheels are doing 100mph with the front wheels doing 0mph and start to shut down/limit engine performance to 5,000 rpm or similar, not giving you a true figure. ------------- Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto |