redEYEjedi

To my understanding, and what I read on the service receipt, only lifters and seals were replaced. No head replacement. I'm glad they eventually did me right, though they told me they "did me a favor." I have CPO warranty which indicates this is covered per the above SIB. So far the repair seems ok. Not sure if I'm being over sensitive about things but I still get a stuttering start sometimes, though not sure if its the cold (average 50 degrees here mornings and evenings in Southern California) that may contribute to that, maybe. I haven't heard any ticking since though. I'm still on my first tank of gas since getting the car back so I can't comment on gas consumption, plus I've been pushing it a bit and using the sport button since Ive missed my car and needed to put a smile on my face.

cobradav

For you N62 (X45)folks

This is as close as we get:

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
N62 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.

Allow 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".

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.

Look for the intermediate lever production date (stamped on the lever, next to the smaller roller contacting the eccentric shaft).

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.

Note: 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: 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.

IMPORTANT:

Improved intermediate levers are currently available from 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.

PARTS INFORMATION
Part Number 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


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.

bigbadbull

The 3 series owners were saying that the N52's with the new heads were putting out considerably more power.

It's unfortunate that they stopped doing the Head swap....

porsche911targa

Just got my car back. It's so quiet now. Great job, BMW. I hope I won't have to deal with this again.

redEYEjedi

Congrats!

I am just boggled though. How does your dealership finish the work in 2 days and my dealership finishes in almost 3 weeks???

skelevirus

50 degrees should not make your car stutter ever!

one4thethumb

Forgive me, but I've forgotten my engine designation. Since I already had the valve bleed in March of '09, I presume the engine in my 2006 530xi is covered by the new SIB. I just sent an email to my excellent SA at Erhard requesting that he confirm that my CPO Warranty (which expired in late September) will still cover this replacement since the fix while under CPO warranty in March did not resolve the problem.

devhan

When I was test driving many examples that had the N52 motor I noticed that many of them ticked. The one that I bought did not until one cold morning out of the blue I noticed it. I am not much for engine additives but I added about 6 ounces of Marvel Mystery oil and it was completely gone and I have not noticed any noise since especially when the car is started in single digit temps.

porsche911targa

It could be one of two things, either they put you on low priority since you had to fight for them to cover it, or maybe the parts for the 545 are not as readily available as the part for the 6-valve engines.

My original reason for going was to replace the spark plugs at 52K. In a month, I will report any gas improvement, if any, and I will post pictures of the old plugs so that people can decide for themselves whether to go 100K with the old plugs or less.

one4thethumb

Received a call from my SA at Erhard this morning (after I sent him a cc: of the newest SIB on the subject on Friday), and I'll be taking her in for the tap on Tuesday the 23rd. Presume that I may get the lifters replaced. Will keep you all informed (even if you don't care ).