Last post on Sep 16, 2012 at 10:07 AM
You are in the BMW 7-Series
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BMW 7 Series
#1006 of 1317 misinformation
Jan 27, 2004 (4:45 pm)
well, misinformation certainly gets spread around all right. Where did you get yours?
The Nikasil V8 was intoduced in 1993 and infected all 1993 and 1994 e32 v8's. BMW extended the warranty on all of these cars to 100,000 miles and 6 years. I can personally vouch for that because when I shopped a 1993 V8 in 1997 the salesman made a big deal about the extended warranty, and the service manger quietly warned me away from the V8 because of the known, nikasil issue.
Yet somehow you think the problem was limited to 1995.
as for the idea that it is limited to the southeast, I personally know people in the Northwest whose V8 blocks were replaced under warranty due to nikasil corrosion of the cylinder walls. Or maybe BMW was just giving away free engine blocks for the heck of it?
more info on the problem can be found at numerous web sites which, unfortunately, Edmunds will not let me give links to ("competing" sites). I'll just say that on one very active BMW 7-series board, we get at least one poor fool a month who just bought a nikasil 740 and now is realizing that rough idle will not be fixed by a "tune up."
Whether a 4.0 block is nikasil or alusil can be determined by examining the serial number. Due to the link problem, any interest person will have to Google for a list of serial numbers to stay away from.
Jan 28, 2004 (3:51 am)
So THAT's the reason for the rough idle, eh?
#1008 of 1317 Nikasil V8 Problems?
Feb 02, 2004 (6:04 pm)
I have a 1994 BMW 740iL that I have owned for 7 years with the original Nikasil V8 engine. It currently has 60,000 miles on it with no hint of idle problems associated with sulfur in the fuel damage to cylinders of this particular engine alloy. I have always used AMOCO - now BP - Ultimate premium fuel because of it's low sulfur content. I live in Iowa. I personally think that a Nikasil V8 engine that has lasted this long with no idle/compression problems probably will last OK into the future because the fuel refiners are reducing the sulfur content in the fuel more and more under federal regulations as time goes on.
Any other opinions on this?
#1009 of 1317 "Any other opionions on this??"
Feb 03, 2004 (7:13 pm)
Whemme, thanks for asking. I've got an opionion on the Ultimate Driving machine. It constantly amazes me that BMW can get away with this and more (plastic in the thermostat area, bad radiators, extreme tendency to alignment/vibration problems, tendency to overheat and crack heads, horrendous repair expenses, maintenance schedules that only a C130 crew chief could relate to, the obsessive-compulsive suggested frequency of changing fluids that American V8s run with for their entire 150K mile life) and still sell these things.
If this were an American car line, New York's Elliot Spitzer would have them in court once Martha vacated a court room. And I write this as a former 7 Series owner who had good experiences!
As an aside, I spoke with a fellow tonight about his new 7 Series. I fully expected a blast about i Drive. Rather than knock it, he dismissed with it as just something that you get used to using. His big complaint was the overly gimmicky features of the car that resulted in all new control settings when he picked it up after dealer service. He continued on about the tendency for i Drive to reset his radio settings, the lack of a solid feel with the controls (he constantly leaves his left turn signal on for the first time in his life), and all the other gimmicks that annoy as opposed to impress. Wow! He wasn't a happy camper in his 80K soap box. As we both left the athletic club parking lot with the snow coming down heavily I suspect he would have been far happier in a Denali or AWD Volvo for a lot less money and aggravation. Maybe these aren't the Ultimate Driving machines but you can get home in them in New England on a February night.
Feb 05, 2004 (12:19 pm)
wrote "I personally think that a Nikasil V8 engine that has lasted this long with no idle/compression problems probably will last OK into the future because the fuel refiners are reducing the sulfur content in the fuel more and more under federal regulations as time goes on."
I think you probably are right. It still is more than possible, however, to pick up a 4.0 liter BMW V8 that has NOT been carefully shielded from low-sulpher fuel, and it is hard to tell exactly what they are selling down at the local Quicky-Mart on a given day. Therefore, a 4.0 liter BMW V8 has an element of risk associated with it which is not found in other automobiles.
The 4.4 liter V8 and all V12's are Alusil motors which do not have the sulpher corrosion problem.
I'll also note that the particular Nikasil formulation used on the 4.0 liter BMW V8 seems to have been particularly susceptible to sulpher corrosion and that other Nikasil engines (e.g., Porsche and Jaguar) are not nearely as "at risk" as the BMW.
Feb 08, 2004 (7:03 am)
I am in the process of buying a 1984 733I, but I want alittle more history on the 733I itself. I can't seem to find any comments on this vehicle. Is there anyone out there to direct me to website that can tell me the original sticker price for this vehicle. It seems I should be able to find something.
#1012 of 1317 not your usual fine Host
by MrShift@Edmunds HOST
Feb 08, 2004 (8:47 am)
The 733i is a variation of the original 7 series introduced by BMW in 1977. The 733i was the only 7 series available in the USA until late 1984 when the 735i came out.
List price was about $37,000 without options.
Graham Robson has a nice book out on the History of the 7 series which you can buy for $22 from Amazon:
I'm sure that a search on Google using the keywords "History of the BMW 7 Series" will get you to parts outlets and forums.
Also be sure you have this car checked out thoroughly prior to purchase as they can be expense to repair relative to their market value, which is not very high at the moment. So be sure you pay a fair price as well. Very often parts can be found on Ebay, I have very good luck there--if one is patient.
Good luck with it.
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#1013 of 1317 Navigation System on 2001 740il
Feb 16, 2004 (1:26 pm)
I've noticed that the 2001 740il has 2 different dash layouts -- one with a small squarish navigation screen and one with a much larger rectangular screen. They seem to be the same year car (2001) and the same model (740il).
Are there different dashboard layouts for this car or am I missing something here?
Thanks for your help!!
#1014 of 1317 garage door opener
Feb 15, 2004 (7:25 am)
Does anyone know if the 1997 740iL garage door opener could be set for the revolving code door openers?
Feb 17, 2004 (8:43 am)
For most cars I've noticed that to program the "revolving code" type openers you have to first program the garage remote to one of the buttons on the car, then go up to the opener itself and press a little black button that turns on a flashing red light next to it (the black button is usually hidden next to the light bulb on the opener). While that red light is flashing (around 15 seconds till it stops) you have to press the button you just programmed on the car from one to five times until the garage door opens or closes.
Sounds complicated I know, but pretty easy once you've done it a couple of times.
I hope this helps.. good luck.