Menu
Home
Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Reply to thread
Click here to become an Official Member of BMW Club Malaysia
Download Form
Home
Forums
BMW Tech and Performance
Do-It-Yourself Garage
AFM Service
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="M30revival" data-source="post: 107454" data-attributes="member: 94"><p>Well if you have done all the cleaning and still couldn't get a steady idling, time to fiddle with the interior of the AFM. The idea is to service the potentiometer inside the AFM.</p><p></p><p>I follow the instruction in this <a href="http://www.bimmerboard.com/forums/posts/28339" target="_blank">link</a> and tinker with the arm and it work beautifully. The link within this article also explain in details the working of the AFM. Yes the older model like E23/E28 uses the same AFM in a Porsche!</p><p></p><p>Before the adjustment, I also had the same problem like BAL3056. Idling was way too low when in 'D' with A/C on. Fuel consumption was suffering as I can virtually see the needle move! After adjusting the AFM, the idling now is just nice and the fuel consumption improves (already changed plugs and plug cables before that). When I had this problem, I was also told that it cannot be fixed. One mechanic said needs to change the AFM so I got myself a spare (just in case). Another said it is due to the brakepan (sp) inside the gearbox. Well after tinkering with the AFM per the instruction in the link, I managed to get it stabilized and now the car feels very lively.</p><p></p><p>Now I have a spare AFM sitting in the trunk! Hmm.</p></blockquote><p></p>
[QUOTE="M30revival, post: 107454, member: 94"] Well if you have done all the cleaning and still couldn't get a steady idling, time to fiddle with the interior of the AFM. The idea is to service the potentiometer inside the AFM. I follow the instruction in this [url=http://www.bimmerboard.com/forums/posts/28339]link[/url] and tinker with the arm and it work beautifully. The link within this article also explain in details the working of the AFM. Yes the older model like E23/E28 uses the same AFM in a Porsche! Before the adjustment, I also had the same problem like BAL3056. Idling was way too low when in 'D' with A/C on. Fuel consumption was suffering as I can virtually see the needle move! After adjusting the AFM, the idling now is just nice and the fuel consumption improves (already changed plugs and plug cables before that). When I had this problem, I was also told that it cannot be fixed. One mechanic said needs to change the AFM so I got myself a spare (just in case). Another said it is due to the brakepan (sp) inside the gearbox. Well after tinkering with the AFM per the instruction in the link, I managed to get it stabilized and now the car feels very lively. Now I have a spare AFM sitting in the trunk! Hmm. [/QUOTE]
Verification
Post reply
Home
Forums
BMW Tech and Performance
Do-It-Yourself Garage
AFM Service
Top
Bottom
