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#1
11-24-2012, 10:51 AM
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Torque Converter
Went to dealer with shuddering/vibration issue from standstill moderate acceleration. They orig thought transfer case. After them looking into it further they tell me it's my torque converter and quote me 3200 to replace!!! Ouch! No way. So I call my tranny shop ( they worked on my fathers M5) good guys.. Do mostly domestic cars though. Tranny shop is not 100% convinced its the torque converter after short test drive. I tell the owner to take my car for the weekend.. Drive around and figure it out. He says he will try to rebuild the thing instead of replacing. What are the chances dealer diagnosis could be wrong? I would hate to put 2k into a new or rebuilt torque converter and then have the same problems! And how do you even test these damn things? How did the dealer come up with their conclusion?
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NAZARIO 2015 M3 / 2012 X5M BMWCCA Kiss French, Wear Italian, Drive German
 
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#2
11-24-2012, 11:15 AM
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Dealers are scam artists.
What are your symptoms?
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2002 X5 4.6is - Titanium Silver / Black Alcantara - Dinan Stage 2 - Bilstein/Eibach - Brembo BBK ----SOLD--- 1993 318i - Brilliantrot / Tan - bone stock daily driver
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#3
11-24-2012, 11:38 AM
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Vibration from floor while accelerating. Usually around 20mph. It's very noticeable and almost feels like it's holding the car back. Also feel it around 40 mph.
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NAZARIO 2015 M3 / 2012 X5M BMWCCAKiss French, Wear Italian, Drive German
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#4
11-24-2012, 12:01 PM
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Do you feel it in the same RPM range? I would disconnect the front drive shaft and take a drive. Also, is it any different in sport mode?
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2006 4.8is, Black on White. SOLD Sniff Sniff. 2017 F85 x5m, Black on Red. BEAST MODE "The older we grow the greater becomes our wonder at how much ignorance one can contain without bursting one's clothes." - Mark Twain Unlock OBC post 5
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#5
11-24-2012, 12:15 PM
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Naz, when you feel the vibration lightly step on the brake. If it goes away, it's likely you have a failing torque converter. By stepping on the brake, the tranny ECM commands the torque converter to lock up and discontinue it's "hunting".
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2006 4.8iS Black/Black with custom Audison Voce/Image Dynamics sound  Production Date - 10/05
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#6
11-24-2012, 05:28 PM
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No different in sport mode...
Unfortunately the car is with tranny mechanic right now. I'll let him know some of these suggestions. The vibration happens in lower rpm range typically.. Under load accelerating slowly you'll get a real clunk. Transmission was done at BMW 28k miles ago.
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NAZARIO 2015 M3 / 2012 X5M BMWCCAKiss French, Wear Italian, Drive German
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#8
11-24-2012, 08:27 PM
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only if you was closeby queens..i would have told you to bring it to M-Spec for inspection man....theyre pricey but realy good..
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Call Me For Tires: 732-421-6931 Past 2000 E46 325i 2006 E53 4.4i Sport 2006 X5 4.8is 2011 E90 328xi 2011 E71 50i Fully Loaded :thumb up: Current 2000 E39 528i 2013 F10 M5 2013 F10 535xi 2017 X3 2017 Sedona 2017 Optima 2016 Fiesta
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#9
03-21-2013, 02:31 PM
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What was the out come Naz?? I have similar problem i'm trying to determine possibilities before i take it to a shop..
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2005 BMW X5 4.4i Toledoblau-Metallic
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#10
03-21-2013, 02:37 PM
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It could be the trans but,
On my pathfinder a few yrs ago, i had a vibration also, what it ended up being is the rear driveshaft has small welded counterweights and one of then actually fell off. Ended up taking out the rear driveshaft, took it to a driveshaft balancing place and it fixed it. Doesnt sound like your issue too much but doesnt hurt to check.
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2006 X5 4.8is Fully Loaded  
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