Hey guys new here. Question, ?? I have a 2001 Bmw 530i and have had in for repair at two different shops and they cant figure why my car will lose power after 4200 rpms it fees like it just falling flat on its face. then after I let off the gas and bring the rpms down it drives fine. It has a new fuel pump and has had the fuel filter changed about 40k ago, There are No check engine lights on , No codes, and the car has 170K on it,... Help Help, Thanks guys


Asked by Sep 10, 2015 at 04:18 AM about the 2001 BMW 5 Series 530i

Question type: Maintenance & Repair

Losing power after 4200rpms No check engine light.   ???

6 Answers

Kelly Mayo

try and change the filter again and have full pressure checked if thats no help...

Tom Demyan

Check the DISA valve, it has been known to cause a hiccup at around 4000K. Also changing out the spark plugs might help.

1 out of 1 people think this is helpful.

Thanks Guys will do both.


Sounds like a fuel delivery issue to me, but it very well could be the DISA valve. I don't know much about it, but it's a fairly common problem among 6 cylinder E39s.


Thanks, I forgot to mention that when this happens it stays stuck in gear and when I let off a few seconds later it will shift as long as I slow down a bit . I cant seem to make it go over 4200 rpms. without this problem. See I bought the car with 23k have done all the services and the 100k service and so on. It has almost all freeway miles where I worked and where I lived. No City driving all rural. My problem is I dont know a mechanic I can trust here that even knows Bmw's, so I am going to do the work myself. Im too far away from a real BMW mechanic at this time. Thanks.


So I took it to repair shop because I couldnt find time to repair it myself. The guy told me it needs a new trans.Not fuel pump or filter or anything he could figure out it has no codes. I asked him then why does it drive fine until I punch it to the floor and why only after 4200 or so rpms does it just have issues. The engine runs fine and smooth until then it acts like something is holding it back. He said 4 grand to fix. But I just cant believe thats the problem. Call me stubborn or whatever. the car had all its maintenance done on time I drove most of its life on the freeway to work and home and never beat it.. Wth to do with this older car that is worth maybe 4 grand if it didnt have a problem. ???

Your Answer

Add photo

Related Questions

5 Series

Looking for a Used 5 Series in your area?

CarGurus has 18,796 nationwide 5 Series listings starting at $1,500.


Search BMW 5 Series Questions

BMW 5 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,740
#2 Michael Branan
Michael Branan
Reputation 710
#3 Robert Charlson
Robert Charlson
Reputation 670
View All

Related Models For Sale

Used BMW 3 Series"
1,609 Great Deals out of 39,618 listings starting at $888
Used BMW 7 Series"
194 Great Deals out of 5,867 listings starting at $2,995
Used Mercedes-Benz E-Class"
764 Great Deals out of 22,807 listings starting at $1,850
Used BMW X5"
548 Great Deals out of 15,638 listings starting at $1,995
Used BMW M5"
39 Great Deals out of 607 listings starting at $7,990
Used Mercedes-Benz C-Class"
885 Great Deals out of 32,203 listings starting at $1,200
Used Audi A6"
158 Great Deals out of 6,819 listings starting at $2,195
Used BMW M3"
86 Great Deals out of 1,918 listings starting at $5,495
Used Mercedes-Benz S-Class"
174 Great Deals out of 6,641 listings starting at $1,899
Used Audi A4"
316 Great Deals out of 13,019 listings starting at $1,500
Used Honda Accord"
1,255 Great Deals out of 78,694 listings starting at $1,400

Used Cars For Sale

2016 BMW 5 Series For Sale
74 Great Deals out of 7,521 listings starting at $33,999
2015 BMW 5 Series For Sale
12 Great Deals out of 407 listings starting at $22,191
2014 BMW 5 Series For Sale
57 Great Deals out of 1,418 listings starting at $19,495
2013 BMW 5 Series For Sale
173 Great Deals out of 2,515 listings starting at $13,900
2012 BMW 5 Series For Sale
35 Great Deals out of 726 listings starting at $13,990