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BMW 7-Series Maintenance and Repair

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  • The fuel injectors on my four cylinder have 280K miles (not the motor) so I thought I would put in some injector cleaner. By the time I ran though that tank of gas with the cleaner in it, my motor is now smoking bad ! I see the smoke when I take off from the stop light, but it may be while driving too, I don't know.
    Is this just a coincidence or did that cleaner do something BAD.

    broke2
  • Hi, I have a 745Li purchased a few months ago. I am curious as to what the oil and maintenance frequency is, as the manual is not clear to me...Thanks
  • Looking for an answer. I have a 2003 BMW 745Li. It has 10,000 miles. Upon starting the vehicle as usual I have to tap the IDrive knob or joy stick twice as some call it to get the IDrive to allow you to open the screens. The other day this did not work and without this device I have no navigation or radio or any of the other components it controls. Is this a common occurance? I read in another forum that this can become a nightmare. At this time I have an appointment with my local dealer for this repair. They gave me an appointment 2 weeks away.Which I find strange but am being patient. After this I will be demanding immediate service for a device that controls all these functions for this vehicle. As I now have BMW's NA phone number. Any help or advice would be appreaciated. Thank You
  • If you have a warranty for full coverage then the dealer that services your 745 knows by the computer when the oil or any other service needs to be performed. It also comes up in your dash. It will say how many miles till you need something serviced.
  • I have had a 2003 745i for 14 months. The car was in the shop twice before I bought it, once for regular service and another for an electrical problem. In the last 14 months I have had this car in the shop 5-6 times for a left sided buzzing noise on 2 occasions, routine maintanence followed by the car light on the nav on one occassion, windshield wipers jumping, the air conditioning turning on when off, buttons peeling, etc. I have never had a problem under the hood. Now the trunk will not open. Does anyone think 6-7 visits over 14 months is abnormal.
    Are others having the same problems. I for one am tires of frequent visits to the dealer. Love to drive the car but I do not think this car is really worth all the trouble. I may be selling it soon even with the loss I will have to take
    Thanks
    David
  • broke2,
    Why did you install injector cleaner???

    jbuchanan
  • Hello: I have a 2003 745Li w/ the 4.4 engine. The vehicle was stored for about a year and a half. It was started a few times during this period. When I purchased the car, it started ok ran a little rough, but accelerated ok. I drove the car to my home about 60 miles, I did notice some vibration from the left front on braking but this went away after I stood on the brakes quite hard from 80 mph. I have since put 2 tanks of 93 octane fuel with the second fill up I added a product called Berryman or Berrymen fuel system cleaner. I have not noticed an adverse operating condition. The dealer I go to serviced the car and they performed service I did not even tell them about which was a real pleasure. The reason it went into service was for peace of mind with the new purchase mainly. It did have a noise like a light banging sound which the dealer said was 2 bushings in the front suspension which they did replace as with other routine maint. But the IDrive computer is working intermittintly which will be serviced on the 10th of October. We shall see.
  • Recentley purchased a phone for my 740IL and I can't get activation because cingular says that it is no longer activating TDMA because of blue tooth technology. It's a shame to have a hands free phone and can't get activation.Is there some wa to possibly get the phone activated.
  • bmwnabmwna Posts: 32
    I'm with BMW of North America, LLC. I've passed this message on to a BMW NA Customer Relations Representative who will be in touch with you soon.

    BMW NA Customer Relations
  • whale2whale2 Posts: 1
    My 1998 bmw 740i has 150k miles, recently the check engine light has come on won't go off...mechanic say that diagnotic check show nothing going with the engine yet I have noticed there is some vibration in the engine even after its has been running for a while with a noise coming from the left side underneath the driver door. Please assit me with this matter, Thanks
  • First off, go to another mechanic. The light is on for a reason.
  • Dear All,

    I am a little puzzled... my BMW 740i's central locking has stopped working. If it were for all things this might make more sense. However, the locks still work on the front two doors but not the rear doors or the boot. Also the back interior light has ceased working. Any ideas anyone, I would be very grateful.
  • Have you checked all your fuses?
  • I have a 1997 BMW 740IL that has 150K on it. It is a nice looking car but since I bought it I have had to fix so many things it makes me wonder just how good these cars are. 1st the headliner fell down. $400 bucks and several trip to fix it it is repaired. Belt tensioner had to be replaced along with the belts. Cam sensor went bad. o2 sensor on one side went out, then the catylatic converter had to be replaced on the drivers side. Replaced the cup holder, wow what a crappy design (2hrs labor) glad I didn't have to pay BMW to fix that.
    Here is my current problem!!!!!!
    Now the radio won't work. The CD player works great but when you switch on the radio it lights up and the ST shows but no sound. I disconnected the phone (can't get it working anyway according to Verizon) but it still will not play. Can someone tell me if the amplifier or some other component is bad........oh the check engine light is on yet again.
  • My 1993 740 (210K miles) will occasionally refuse to start. Was told that was probably a "computer" problem. Had car serviced and computer re-programmed and it work fine for several months. Problem returned. Took to another repair shop. The mechanic swapped a computer from another BMW and my car started OK. Switched the computer back and my car still did OK. A friend advised that the computer was likely losing memory (due to whatever) and that if the car was not run for an extended period of time that it would (may) need to be re-programmed. The magic part was that the car would "re-program itself" IF you could just get it started. So, the advice was to spray a little starter fluid in the air intake and start the engine. It worked! The problem would re-occur and a little spray would do the job. The frequency increased. One occasion, the car's engine stopped running while driving - was able to safely get off road. Tried the starter fluid and after several attempts the car started and I took car to a mechanic. He replaced a starter relay and declared the problem fixed - difficult to tell when the problem is sporadic. The problem returned and a little starter fluid turned into multiple attempts to start with eventual success. The last time this happened, I had tried for 5 minutes of spray and crank. Finally gave up, called for a ride and decided to try it one more time - started right up and did fine. I have about lost my sense of adventure and would like to find a solution so that I am not always in danger of being stranded due to an unreliable car. Can you help or suggest a possible solution.
  • I am looking at buying a used '02 745li. I currently own a '99 LS400. I have heard BMW build quality is not very good. I was just wondering what problems occur most with this car?
  • Hello All, I have an interesting End of Lease Situation on which I need some input. I Originally Leased a 2002 745Li on a 4 year lease. After two years BMW bought the car back and gave me a 2004 do to all the troubles I experienced with the 2002. I am now at the end of the original lease.

    The original residual value on the lease appears to be the same as the 2002 car. That is, they have quoted me a residual value of $44,998. The fair market value on the 2004 that I am actually driving is more like $60,000.

    Does anyone have any experience with what might happen if I try to buy the car at $44K and re-sell? I am negotiating a new lease for the 650 Convertible. It sure would be nice if I could pocket the difference and put it toward the new car???

    Any input would be appreciated
  • drive745, I leased a 2002 745Li and drove it 2 years. It was in the shop more than I had it. They ended up buying it bake and giving me a 2004. Most of the problems were computer related. If they have solved those problems it might be ok. I also had some wheel and alignment problems that they finally resolved.
  • I don't think your market value number is too realistic but if they let you get away with this, there is probably some profit in the car for you...but if you pay sales tax when you buy the car (I'm not sure about this), your profit when you resell, after all the smoke clears, might be more like $5K or a little less. Depends on mileage and the car's condition.
  • Shiftright, I received the buy out details from BMW....$45,000.00. Sales tax would be about $2600.00. I have researched resale values on Edmunds and other places. The car is in excellant condition with under 25K miles. The lowest re-sale figure I have seen is $62,995 with a high of $69,995.

    The reason the residual is so low is that they set this up originally as a 2002 model then traded me out to a 2004 without changing the lease. I just can't see how I can lose on this???

    Your insight would be valuable and thanks.

    Steve
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