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Sedans BMW 7-Series BMW 7-Series Maintenance and Repair
750 messages, Last post on Dec 01, 2009 at 10:55 AM
You are in the BMW 7-Series Forum. Your Hosts are pat & karens
My wife's 01 740il, 135K, has for the last 6 months been developing a (what I incorrectly called a surge) that was barely noticeable at light throttle, highway speeds. As I have watched, the tach when it drops engine speed to engage overdrive, the engine makes a growling or "snoring" sound and pops out of overdrive. Took it to a local bimmer shop (not dealer). Said the Vanus valve was bad from sludge (Thanks BMW service plan from original owner). Caused the control module mounted in conjunction with themostat housing to go bad because the vanus could not move properly confusing the module and burned it out. (not sure I buy it) Anyways, this growling, gear hunting, transmision chattering occurance happens ONLY after the car has achieved operating temp. I have taken the throttle body apart, no wear detectable. Have replaced the spark plugs and boots. HAve spent 1600 dollars on shop to replace vanus valve, control module, etc, Now problem is worse. And the check engine light comes on (bulb burned out now) Please, any help would be appreciated. Don't have money for shop again and Wife won't drive it. 
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Replying to: DACollins (Dec 15, 2008 1:47 pm)
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Replying to: Mr_Shiftright (Dec 15, 2008 2:13 pm) 
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Replying to: DACollins (Dec 15, 2008 3:58 pm) Saying that a light "should come on" is not an answer. They should be looking for a code regardless. Wide and sudden fluctuations in engine timing would be a pretty spooky thing--that would be throwing all kinds of codes then. It's kind of hard without driving the car myself. I didn't buy the Vanos idea either. |
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Replying to: jchenirvine (Feb 01, 2004 12:31 am) |
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I have owned BMW's for a long time and my current 740I will be my last. At only 75,000 miles (1998 model year) the thing is falling apart re: repairs and I am not the only one with these problems.. too many to list. The latest and perhaps most costly problem is the Catalytic converters. I don't have the engine light yet, however they are making that trademark 'gravel' type sound after car is on for a few minutes. I am not going to let the dealer do it for they want 5,800.00 (they must be on crack). I will use aftermarket items that cost less than 100 each plus installation (will use a muffler shop I know of). I have friends who have Toyota, Nissan ect and they are much less to maintain. Do they feel as good when you close the door, no. Why can't BMW engineer cars that don't cost a ton to maintain? You see a lot of people with Honda Accords with 150K miles and they run strong and have not needed much re: repairs. |
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Hello, I just bought a 99 750iL & the seller (dealer) assures me that the on-board computer/nav system needs only to be reprogrammed. It comes on, but only the steering wheel radio controls work, can't get the CD player online... I don't care about the navigation system, I only drive locally. I DO care about the radio/CD player! My question is: Is the seller lying? Anyone? Thanks.
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Replying to: AnnWhal (Jan 11, 2009 2:41 pm) If it's so easy to program why didn't the dealer do it? And I never heard of "re-programming" to correct a blank screen. You might check with the BMW dealer to see if there are software updates on CD. Maybe that'll help? You apparently need (according to my book) the Software CD V17.0 inserted into the Navigation computer (the CD-ROM V17.0 bears the P/N 01 59 9 789 299 Index "u"). There is a step by step procedure for installing this upgrade and also getting the radio to work. If your dealer hinted that all you had to do was press a few buttons---well, lotsa luck.
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Replying to: Mr_Shiftright (Jan 11, 2009 4:30 pm) BUYER BEWARE!!!
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Replying to: AnnWhal (Jan 14, 2009 8:18 am) You might consider taking the dealer to small claims court if you think he misrepresented the car to you. The term "AS IS" does not relieve anyone of the consequences of misrepresentation per se, especially a licensed dealer. I'd try to hit the dealer up for 50-50 on this one if the purchase was fairly recent. If you bought the car 6 months ago, forget what I said. You own it now. |
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