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7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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  #1  
Old 02-29-2008, 05:44 AM
G2BMW G2BMW is offline
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Rough idle/cold transmission

I've seen several posts here regarding a rough cold idle and jerky cold transmission, just want to get the definitive fixes...if there are any.

1) When cold, the engine has a very rough idle for the first minute or so. Is this normal?
2) When cold, the transmission seems to be very erratic. Runs pretty good after it's warm with the exception of rolling starts where it seems that I surprise the car by pressing the gas. Thoughts?
4) Any idea how to find the software rev(s) for the car? What's the current rev(s) and will the dealer update under warranty?
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  #2  
Old 02-29-2008, 07:04 AM
745ByMySide 745ByMySide is offline
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I think the software for the DME regulates the air-fuel ration depending on ambient temp, humidity and a few other factors, so if that is not working correctly then a software update would be needed, and they definately would update under warranty.

p.s. Don't forget that sometimes this could be normal at extremely cold temps. depending on how rough the idle is and how jumpy the car is.
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  #3  
Old 02-29-2008, 07:57 AM
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Cold start idle and jerky transmission when cold

Quote:
Originally Posted by G2BMW View Post
I've seen several posts here regarding a rough cold idle and jerky cold transmission, just want to get the definitive fixes...if there are any.

1) When cold, the engine has a very rough idle for the first minute or so. Is this normal?
2) When cold, the transmission seems to be very erratic. Runs pretty good after it's warm with the exception of rolling starts where it seems that I surprise the car by pressing the gas. Thoughts?
4) Any idea how to find the software rev(s) for the car? What's the current rev(s) and will the dealer update under warranty?
My 2004 (12/03 prod date) 745i Sport does not idle poorly when cold, but the trans / throttle is very touchy for the first few minutes until it warms up. I find that backing out of my garage and turning around in my parking area to leave for work every day is a challenge to move the car without jerking.

I have had the transmission software reprogrammed under a service bulletin that refers to the "Urban Shifting Program" that helped with slow speed chenges in decel to accel clunks, and the torque converter replaced to deal with a surging issue I identified @ 30- 20 MPH. The cold behavior was unchanged after both - so don't expect this to change, but get the transmission re-programmed if the slow speed reversal from decel to accel clunk is there.
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  #4  
Old 02-29-2008, 01:32 PM
johndade johndade is offline
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i used to get the rought idle at starts before the update it did solve the rough idle check with dealer if you need update.
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  #5  
Old 02-29-2008, 05:25 PM
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glgpc glgpc is offline
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The rough idle start is normal. Yes, your luxury German sedan acts like a Ford F-150 for the first 30 seconds or so after a cold start. If I can remember correctly, this is what my BMW mechanic friend told me:
This is due to the system used for the throttle. The 7 does not have a standard (wire) throttle, it uses a system called valvetronic to regulate engine speed. Instead of having a throttle body with a flap door allow more air to be pulled into the engine, thus increasing RPM, the valve opening travel in the 7 is variable, (in 99% of other cars, the valves open the same distance every time). When the intake valves open more, the engine RPM's go up. when you slow down, the valves open less. However, the small drawback to this system is that for the first 30 seconds or so after a cold start, the valvetronic is not actually working and the engine uses an old fashioned flap door throttle system. I think I have remembered it right. Any mistakes are with my memory, not my mechanic.
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  #6  
Old 02-29-2008, 07:08 PM
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sunny_j sunny_j is offline
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then why does bmw have a software fix for the rough idle. i use to have that problem in my old (e65)745i and i think software fixed the problem.
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  #7  
Old 02-29-2008, 08:44 PM
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momo_oo[][]oo momo_oo[][]oo is offline
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does any one knows when is the new software released i have an appointement monday ? will i be able to get it updated on the 3rd?
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  #8  
Old 02-29-2008, 10:03 PM
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i've never experienced a rough idle so should i should make an appointment? i doubt that a rough idle is "normal".
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  #9  
Old 03-02-2008, 10:55 AM
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glgpc glgpc is offline
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I think we are talking degrees. There may be a software "fix" which somewhat alleviates the rough idle start, but ALL E65-66 MODELS HAVE A ROUGHER COLD START. For some of you it may be less rough than others, but if we're honest, we have to admit that those 15 to 30 seconds after a cold start are not as smooth as the when the engine "settles down" i.e. when you don't know it's on.
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  #10  
Old 03-03-2008, 01:06 PM
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momo_oo[][]oo momo_oo[][]oo is offline
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Quote:
Originally Posted by glgpc View Post
I think we are talking degrees. There may be a software "fix" which somewhat alleviates the rough idle start, but ALL E65-66 MODELS HAVE A ROUGHER COLD START. For some of you it may be less rough than others, but if we're honest, we have to admit that those 15 to 30 seconds after a cold start are not as smooth as the when the engine "settles down" i.e. when you don't know it's on.
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  #11  
Old 03-03-2008, 06:18 PM
cjennjr cjennjr is offline
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My '02 starts out with a rough idle, but eventually smooths out in less than 30 seconds. I wouldn't worry about it.
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  #12  
Old 08-12-2009, 03:40 AM
rasheed1397 rasheed1397 is offline
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Urban Shifting

Apparently "Urban Shifting" is when the lower gears (i.e. 1 and 2) behave erratic. Whenever I'm in stop and go traffic, every time I hit the break or gas it feels like the car slams it itself into 2 for up-shifting and likewise slams itself into 1 for downshifting. Contrary to what some stated here, it doesn't do this when the car is cold. Also in some instances this jerk into gear behavior happens at higher speeds too especially when swiftly releasing the gas (without braking).

My car does have that rough cold start, but it didn't occur to me that it might be associated with "Urban Shifting". Unfortunately my car has high mileage and therefore it's out of warranty so I have to fork over $423 for the control-software update.

If its a known problem I don't see why I have to pay, I'm going to call customer service to see if they can do anything about the cost.

Cheers,
Rasheed
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  #13  
Old 08-12-2009, 10:50 AM
teejaylentz teejaylentz is offline
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Does anyone have a reference to the service information bulletin for the rough idle issue?
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  #14  
Old 09-19-2011, 01:27 AM
Sinclair Sinclair is offline
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SI B 11 02 05 Rough Idle, Misfire Faults after Cold Start

SI B 11 02 05
Engine
January 2006
Technical Service
This Service Information bulletin supersedes S.I. B11 02 05 dated May 2005.
designates changes to this revision
SUBJECT
62 Engine - Rough Idle, Misfire Faults after Cold Start
MODEL
E53 (X5 4.4 i/4.8is); E60, E63/64, E65/66 with N62 from 06/04 up to 02/05 production
SITUATION
Customer may complain of erratic engine idle speed lasting for approximately 20 seconds after a cold start.
Check Engine Soon light may be illuminated and misfire faults for various cylinders (e.g. FC 2742, 2743, 2744,
2745, 2746, 2748, 2749, 274E) may be stored in the DME.
CAUSE
Incorrect tolerances and geometry of Valvetronic intermediate levers are causing uneven cylinder filling during
the transitional cold start period (60 seconds after the engine has been started) when the Valvetronic system is
switching from the initial 6 mm to a minimum 0.3/0.8 mm valve lift.
CORRECTION
On a customer complaint basis, and after performing diagnostic procedure described below, replace the
Valvetronic intermediate levers.
PROCEDURE
Perform basic engine diagnosis (compression, ignition, fuel pressure, etc) to rule out other potential
causes.
1.
Allow 2. the engine to cool down.
Connect GT1/DIS loaded with CD 44.0, or higher, to a cold vehicle (coolant temperature below 30
deg C) and from the Function Selection select: "Service Functions", "Drive", "Engine management
ME9", "Test runs" and then "Tolerance test, intermediate lever".
3.
4. Start the engine and follow-up the test plan.
Observe rough running values when idle speed stabilizes. If values are in excess of +/- 2.5 accompanied
with noticeable engine vibration (and sometimes Check Engine Soon flashing), then remove valve covers
on both banks.
5.
Look for the intermediate lever production date (stamped on the lever, next to the smaller roller
contacting the eccentric shaft).
6.
If the production date is in the range between "04 180" and "04 324" (e.g. day 324 of the year 2004),
then the whole set of intermediate levers (16) has to be replaced. The same classification of levers must
be used when ordering the intermediate levers (classification number is stamped below production date).
There are 5 classifications of levers used in the N62 engine.
7.
ote: In an individual cylinder head, all levers must have the same classification, but two different
classification of intermediate levers may be used in one engine (e.g. bank 1: classification 2, bank 2:
1 of 3
classification 3).
Important: The lower production range of the affected intermediate levers is only an approximation. It is
possible that levers produced prior to "04 180" (but not earlier then "03 363") may have certain deviations in
tolerances.
For Valvetronic intermediate lever replacement procedure, refer to RA 11 37 012 (bank 1) and RA 11 37
014 (bank 2), found in BMW TIS.
8.
IMPORTA T:
Improved intermediate levers are currently available from 1. our Parts Department.
In the event of a reproducible customer complaint proceed with the diagnostic and repair procedure.
There is no need to contact Technical Hotline.
2.
PARTS INFORMATION
Part umber Description Quantity
11 37 7 516 895 Intermediate levers class 1 Maximum 16
11 37 7 514 012 Intermediate levers class 2 Maximum 16
11 37 7 514 013 Intermediate levers class 3 Maximum 16
11 37 7 514 014 Intermediate levers class 4 Maximum 16
11 37 7 514 015 Intermediate levers class 5 Maximum 16
11 12 7 513 194 Valve cover gasket bank 1 1
11 12 7 513 195 Valve cover gasket bank 2 1
11 31 7 507 432 Tensioner sealing ring 2
07 11 9 903 596 Valvetronic motor spacer ring 2
11 14 7 506 424 Timing chain cover, u-shape metal gasket, bank 1 1
11 14 7 506 425 Timing chain cover, u-shape metal gasket, bank 2 1
11 36 7 513 222 Vanos solenoid O-ring 4
11 36 7 546 379 Vanos solenoid O-ring 4
11 36 7 501 423 Vanos unit bolts 4
12 14 1 748 398 Cam sensor o-rings 4
11 12 7 518 420 Eccentric shaft sensor o-ring 2
NOTE:
It is not necessary to replace spark plugs tubes during a course of this repair.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.
Defect Code 11 37 91 42 00
2 of 3
Labor Operation: Labor Allowance:
Main work: 00 55 453 93 FRU E53 X5 4.4i/4.8is
91 FRU E65/66
102 FRU E60, E63/64
+Associated work: 00 55 793 91 FRU E53 X5 4.4i/4.8is
90 FRU E65/66
100 FRU E60, E63/64
Note: The following explanations will spell out the correct use of the work times.
Main Work:
Use this labor operation number when the only repair performed is the
listed warranty repair.
OR
+Associated
Work:
Use this labor operation number when other repairs or services are
performed along with the listed warranty repair.
Under no circumstances should both labor operation numbers be claimed.
Attempts to claim both times will result in an unnecessary delay in claim
processing and payment.
[ Copyright 2006 BMW of North America, LLC ]
3 of 3
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  #15  
Old 07-09-2017, 12:03 AM
Kurt Holobaugh Kurt Holobaugh is offline
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