Alternator Belt Change

Discussion in 'GS Boxers' started by Carl Childers, Feb 16, 2017.

  1. Carl Childers

    Carl Childers Ghost in the Machine

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    My 09 has 16,500 miles on it and I'm pretty sure the belt is the original, should I change it now and just what is the belt change intervals for this bike?
    #1
  2. Amania

    Amania wine co hooligan

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    I put 9 years and 95,000 miles on my 05 GS belt. But what ever makes you feel good.
    I was carrying a spare after 50,000 though. I think BMW recommends changing at 40 thousand though.
    #2
  3. BlueLghtning

    BlueLghtning Riding is my passion

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    You might want to pull your cover just to look at it. I changed my 05 with 35k miles last year. No Idea if it had been changed before I got it that year. Anyway I pulled it to check it and I could tell immediately I needed to change it. It actually was fairly easy to change so I didn't mind doing it and piece of mind.

    Your belt from 09 is already 8 years old. That's getting on the upper end of what you should expect out of rubber belts.
    #3
  4. barnyard

    barnyard Verbal tactician Super Moderator

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    Get a belt, check youtube vids for changing it, put belt in your tool pouch until you need it. My 2008 RT had 50k on it when I sold it. I had bought a belt when it had 34k on it, pulled the cover and it looked great, so I left it. The new owner PMd me about it, he pulled the cover, took it off and it looked fine, so he put it back on.
    #4
  5. gusable

    gusable Been here awhile

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    My opinion is change it just due to years. Cheap insurance
    #5
  6. GSBruce

    GSBruce Been here awhile

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    8 year old rubber - change it.
    #6
  7. slartidbartfast

    slartidbartfast Love those blue pipes

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    I'm as cheap as BMW riders come but I still change alternator belts on schedule. If the belt starts to fray, the loose ends flailing around can tear up a lot of stuff. Change the belt and you won't have to worry about it.
    #7
  8. lewisjr1

    lewisjr1 Long timer

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    Peruse this site's Resources section, Google some YouTubes, and, if you haven't already, check out JVB's excellent videos... With that you'll readily be able to change your bike's alternator belt.

    After a decade plus, it's time. Past time!

    Edit:. A mere $21 bucks for the (very) late model 1150s, and cheaper still for the earlier models...

    http://www.beemerboneyard.com/airfuelfilters.html

    That's the price of lunch!
    #8
  9. GSMarc

    GSMarc Long timer

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    must be changed every 6 years or 25.000 miles (40.000 km)
    #9
  10. ErikMotoMan

    ErikMotoMan Clearwater Lights and HELITE airbags Save Lives!

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    Change the belt!!! When the belt fails it may likely destroy the wiring harness for your ignition system. Now you have a $ 500 + problem.
    #10
  11. Amania

    Amania wine co hooligan

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    What wiring harness? How?
    #11
  12. slartidbartfast

    slartidbartfast Love those blue pipes

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    There's no delicate HES wiring around the lower pulley as there is on the 1100 and 1150. However, there are still things in the vicinity of the belt that could be damaged by failing loose cords if it starts to fray. Then there is the hassle of dealing with a broken belt. Far better to change it on your own terms, before it leaves you stuck with a flat battery, miles from home, by the side of an interstate in cold rain or 98-degrees with no shade.
    #12
  13. ragtoplvr

    ragtoplvr Long timer

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    I ran a 79 Pontiac Bonneville for 15 years and 257000 miles, replaced one of 3 belts at 200K miles. Other 2 were still original. BTW still had the original lower radiator hose and the AC still worked.

    Robber should be better now, not worse. What gives, do the Germans use biodegradable belts now.

    The load on that belt should be quite low with only an alternator on it.

    Rod
    #13
  14. Carl Childers

    Carl Childers Ghost in the Machine

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    All things considered I'll be getting on the phone this afternoon to order a belt along with a few other parts I need. It is a pretty dry climate here and rubber doesn't hold up as well as in other parts of the country. Ounce of prevention and all. Thanks everybody for you input.
    #14
  15. trc.rhubarb

    trc.rhubarb ZoomSplat!

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    I checked the belt every 12k miles and once it started to show cracks I replaced it at 90k miles and 9 years.
    It's very easy to do but I didn't want to throw a belt away just because of a number... I wanted it to need it.
    I carried the old as a spare until the bike was gone.
    #15
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  16. JimVonBaden

    JimVonBaden "Cool" Aid!

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    IMHO, change the belt at 26K miles. You don't want to get stranded for lack of a belt. While some may get high miles from them, I have seen enough bad at 24K to just change it. Dirt, bad install, and high heat can deteriorate a belt.

    Here is how to change it:


    I really need to update this.
    #16
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