Can’t reset oil service indicator!
#11
New Members
Join Date: Apr 2017
Location: pa
Posts: 426
Likes: 0
Received 21 Likes
on
20 Posts
My Ride: 528i
Model Year: 2010 528i e60
Engine: N52k
![Default](https://5series.net/forums/images/icons/icon1.gif)
When you look at the electrical wiring diagram charts mapping the wires from the oil sensor inside the crank case back to the iDrive unit, what other devices are on the same bus?
- Are those devices working?
- can you run fresh wire from the oil sensor back to the iDrive?
- Are those devices working?
- can you run fresh wire from the oil sensor back to the iDrive?
#12
New Members
Thread Starter
Join Date: May 2018
Location: Maui, HI
Posts: 31
Likes: 0
Received 1 Like
on
1 Post
My Ride: 550i sport package
Model Year: 2006
![Default](https://5series.net/forums/images/icons/icon1.gif)
Found a wiring diagram and found that the oil sensor is on the same bus as all the oxygen sensors. Traced where and what the fuse is for them and definitely not a blown fuse.
Not getting any codes for oxygen sensors so don’t think it’s any wiring problems. Everything else seems to be working fine.
I’m gonna have to get back under her and get a multi meter to check the wiring harnesses.
Not getting any codes for oxygen sensors so don’t think it’s any wiring problems. Everything else seems to be working fine.
I’m gonna have to get back under her and get a multi meter to check the wiring harnesses.
#13
Super Moderator
![Default](https://5series.net/forums/images/icons/icon1.gif)
I had the same exact problem. My mechanic changed my oil and could not reset the service interval. I tried resetting it a billion times but to no avail. Ended up being the wiring to the oil sensor. You need to check it with a meter because if the wire is broken inside the insulation, you won't be able to tell that it is broken visually. BMW wiring seems to be infamous for that.
#14
New Members
Thread Starter
Join Date: May 2018
Location: Maui, HI
Posts: 31
Likes: 0
Received 1 Like
on
1 Post
My Ride: 550i sport package
Model Year: 2006
![Default](https://5series.net/forums/images/icons/icon1.gif)
I had the same exact problem. My mechanic changed my oil and could not reset the service interval. I tried resetting it a billion times but to no avail. Ended up being the wiring to the oil sensor. You need to check it with a meter because if the wire is broken inside the insulation, you won't be able to tell that it is broken visually. BMW wiring seems to be infamous for that.
Thank you for your response and information. I was thinking that was the problem, but hoping it wasn’t.
Just wondering did you have to re wire, or run new wire?
#15
Super Moderator
![Default](https://5series.net/forums/images/icons/icon1.gif)
My Indy mechanic located where it was broken and repaired it. The oil service light was then magically able to reset.
#16
![Default](https://5series.net/forums/images/icons/icon1.gif)
Old thread but thought this might be worth mentioning: it might not be an issue for the OP because of low miles, but once you hit higher miles (over 300,000km according to BMW) the oil change indicator stops working because BMW programmed a set amount of resets into the software. It'll reset briefly and then quickly revert back to 0 miles remaining.
#17
New Members
Thread Starter
Join Date: May 2018
Location: Maui, HI
Posts: 31
Likes: 0
Received 1 Like
on
1 Post
My Ride: 550i sport package
Model Year: 2006
![Default](https://5series.net/forums/images/icons/icon1.gif)
Update!!!
so after doing research over the years I found that the oil level sensor is on the same bus as the alternator, starter, and IBS. I changed the IBS over a year ago and that wasn’t it. So I’ve been doing some other work on the car and figured while I was in there I would remove the alternator and change the voltage regulator. After removing the alternator I found that oil might be the problem. The previous owner had the alternator bracket gasket replaced by a mobile mechanic and I don’t think he cleaned any of the oil from the wiring or plugs. After a good cleaning and replacing voltage regulator and put everything back together……SUCCESS!!!
The oil level sensor now works and I am able to reset oil service light. No more maintenance required light on dash and no more triangle light!!!
it’s such a good feeling!!!
so after doing research over the years I found that the oil level sensor is on the same bus as the alternator, starter, and IBS. I changed the IBS over a year ago and that wasn’t it. So I’ve been doing some other work on the car and figured while I was in there I would remove the alternator and change the voltage regulator. After removing the alternator I found that oil might be the problem. The previous owner had the alternator bracket gasket replaced by a mobile mechanic and I don’t think he cleaned any of the oil from the wiring or plugs. After a good cleaning and replacing voltage regulator and put everything back together……SUCCESS!!!
The oil level sensor now works and I am able to reset oil service light. No more maintenance required light on dash and no more triangle light!!!
it’s such a good feeling!!!
#18
New Members
Join Date: Nov 2017
Location: Brentwood, CA
Posts: 59
Likes: 0
Received 5 Likes
on
4 Posts
My Ride: 2008 550i 6-spd; 2007 530i Sport
Model Year: 2008
![Default](https://5series.net/forums/images/icons/icon1.gif)
Thanks for your thoughts.
#19
Super Moderator
![](https://5series.net/forums/images/ranks/veteran_army.png)
Join Date: Jul 2011
Location: Augusta, GA
Posts: 3,627
Likes: 0
Received 318 Likes
on
305 Posts
My Ride: 05 530i M54
Model Year: 05 530i
Engine: 3.0 M54
![Default](https://5series.net/forums/images/icons/icon1.gif)
There is only one plug that goes to the alternator so I am assuming that is the wire and plug he cleaned up. That is whats on the BSD
Thread
Thread Starter
Forum
Replies
Last Post