2006 2.5 SE ENGINE TAPPING
- Thread starter z4man2020
- Start date
Good morning,
I have a 58 plate 2.5 Si and have suffered the same thing. I used a lifter treatment but this problem seems to come and go on my Z4. I have found that taking the car on longer journeys helps along with regular oil changes. I have started a new job and the drive in is 16 miles each way and that has helped reduce the incidence of the tapping. It is fairly rare now and usually clears after a few miles.
My advice is oil changes and regular long runs which is after all the best part of owning a Z4.
Good luck.
I have a 58 plate 2.5 Si and have suffered the same thing. I used a lifter treatment but this problem seems to come and go on my Z4. I have found that taking the car on longer journeys helps along with regular oil changes. I have started a new job and the drive in is 16 miles each way and that has helped reduce the incidence of the tapping. It is fairly rare now and usually clears after a few miles.
My advice is oil changes and regular long runs which is after all the best part of owning a Z4.
Good luck.
What oil are you using?
I moved from a 30 weight to a 40 weight oil in my M52Tu25 engined bimmer years ago after experiencing valve lifter ticking and it cured the problem.
I'm going to do the same next oil service on my 150k mile M54B30 next oil service as preventive maintenance measure.
I moved from a 30 weight to a 40 weight oil in my M52Tu25 engined bimmer years ago after experiencing valve lifter ticking and it cured the problem.
I'm going to do the same next oil service on my 150k mile M54B30 next oil service as preventive maintenance measure.
read this :-
This Service Information bulletin supersedes SI 11 09 07 dated April 2008.
SUBJECT
Intermittent Hydraulic Valve Adjuster (HVA): "Ticking" or "Rattling" Noises
MODEL
All E82, E83, E85, E86, E88, E60, E61, E70, E90, E91, E92, and E93 with the N51, N52 or
N52K engines
SITUATION
An occasional ticking or rattling noise from the HVA elements may occur during cold
engine starts or frequent short-distance driving.
CAUSE
In these situations, the HVA elements may not yet have been supplied with sufficient
amounts of air-free oil. This condition will not cause any damage to the engine, and
usually remedies itself with a longer driving distance or operating times at full operating
temperature.
CORRECTION
In the event of a customer complaint, please perform the following the HVA bleeding
procedure.
PROCEDURE
Important notes:
The bleed time may take anywhere from between two minutes and (in rare cases) to a
maximum of 30 minutes. This procedure is to be performed on a level surface with the
vehicle stationary, and in a properly ventilated area.
Procedure preconditions:
Engine oil level correct – neither underfilled nor overfilled
Engine running at operating temperature
Bring the engine up to an operating speed (no load) of 2000-3000 rpm and maintain this
condition for three minutes (bleeding procedure).
Let the engine idle for 15-30 seconds and reevaluate whether the noise is still present or
not.
Engine quiet – procedure is finished.
Engine noise is still present – repeat the procedure; perform steps #1 and #2 up to a
maximum of 5 times.
Only if the noise remains after performing the bleeding procedure 5 times: proceed by
performing the procedure for a final time, also at an engine operating speed of 2000-3000
rpm, but for a total time duration of 15 minutes.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.
(1) 11-12-7-591-617 N52 Cylinder head with valve
(1) 11-12-9-391-547 Set of Alu. screws F Cylinder
(1) 11-12-7-548-799 Bolt cylinder head
(1) 11-12-0-392-547 set of alu. screws
(3) 11-12-7-521-167 ASS-Stud Bolt
(2) 11-36-7-524-954 Collar Screw
(1) 11-12-7-555-757 Cylinder head gasket
(1) 11-12-7-548-921 Gasket set cylinder head
(1) 11-12-0-409-288 set of alu. screws
(2) 13-62-7-530-413 Torx screw
(2) 11-12-7-529-997 Torx Screw
(6) 33-32-6-768-354 Hex screw with collar
(1) 11-42-7-566-327 Set oil-filter Elem
(7) 07-51-0-017-954 Motor oil SW30
(1) 82-14-1-467-704 Antifreeze
(1) 22-11-0-392-551 Set of Alu. screws
September 2009
This Service Information bulletin supersedes SI B11 09 07 dated January 2009.
SUBJECT
Intermittent Hydraulic Valve Adjuster (HVA) Noise
MODEL
All E82, E83, E88, E85, E86, E60, E61, E70, E90, E91, E92 and E93 vehicles with N51,
N52 or N52K engines produced approximately up to November 31st 2008; refer to
cylinder head casting identification attachment.
SITUATION
An occasional ticking or rattling noise from the camshaft hydraulic valve lifters (HVA) may
occur during cold engine starts, due to frequent short-distance driving, or the noise may
occur for an extended period of time even though the engine is at operating temperature.
Improved parts were phased into production beginning on 10/1/2008 and fully
implemented on November 31st 2008.
CORRECTION
Do not perform the bleeding procedure that was previously provided in SI B11 09 07
which has now been deleted.
All vehicles produced between 10/1/2008 and 11/31/2008 must have each vehicle's
cylinder head casting number identified before hydraulic valve lifters (HVA) replacement,
due to staggered implementation. Refer to the attachment for the casting number
location. Vehicles produced after 11/31/2008 have already been fitted with improved
parts. Vehicles produced prior to 10/1/2008 will require the new parts.
Improved Casting Numbers
N51 (B30)
7588277.01
N52 (B30)
7588273.01
N52K (B30)
7588271.01
A cylinder head casting number that does not match will require replacement of the 12
exhaust camshaft hydraulic valve lifters (HVA) as per Repair Instruction RA 11 33 050,
Removing and installing/replacing all rocker arms. Only the exhaust camshaft and rocker
arms have to be removed in order to replace the hydraulic valve lifters. Do not remove or
replace any intake camshaft valve train components.
PARTS INFORMATION
Part Number
Description
Quantity
11 33 7 605 330
Hydraulic Valve Lifter (HVA)
12
Refer to EPC for additional gaskets, seals and bolts, as required by the Repair Instructions.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty, or the Certified Pre-
Owned program.
Please refer to the latest KSD for the applicable Main or Associated labor allowance for the
specific model.
Defect Code:
11 33 93 39 00
Labor Operation:
Labor Allowance:
Description:
00 58 248
Refer to KSD
Replace exhaust camshaft hydraulic valve lifters (HVA)
*Main Work
or
00 58 827
Refer to KSD
Replace exhaust camshaft hydraulic valve lifters (HVA)
+ Associated Work
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.
(1) 11-12-7-591-617 N52 Cylinder head with valve
(1) 11-12-9-391-547 Set of Alu. screws F Cylinder
(1) 11-12-7-548-799 Bolt cylinder head
(1) 11-12-0-392-547 set of alu. screws
(3) 11-12-7-521-167 ASS-Stud Bolt
(2) 11-36-7-524-954 Collar Screw
(1) 11-12-7-555-757 Cylinder head gasket
(1) 11-12-7-548-921 Gasket set cylinder head
(1) 11-12-0-409-288 set of alu. screws
(2) 13-62-7-530-413 Torx screw
(2) 11-12-7-529-997 Torx Screw
(6) 33-32-6-768-354 Hex screw with collar
(1) 11-42-7-566-327 Set oil-filter Elem
(7) 07-51-0-017-954 Motor oil SW30
(1) 82-14-1-467-704 Antifreeze
(1) 22-11-0-392-551 Set of Alu. Screws
This Service Information bulletin supersedes SI 11 09 07 dated April 2008.
SUBJECT
Intermittent Hydraulic Valve Adjuster (HVA): "Ticking" or "Rattling" Noises
MODEL
All E82, E83, E85, E86, E88, E60, E61, E70, E90, E91, E92, and E93 with the N51, N52 or
N52K engines
SITUATION
An occasional ticking or rattling noise from the HVA elements may occur during cold
engine starts or frequent short-distance driving.
CAUSE
In these situations, the HVA elements may not yet have been supplied with sufficient
amounts of air-free oil. This condition will not cause any damage to the engine, and
usually remedies itself with a longer driving distance or operating times at full operating
temperature.
CORRECTION
In the event of a customer complaint, please perform the following the HVA bleeding
procedure.
PROCEDURE
Important notes:
The bleed time may take anywhere from between two minutes and (in rare cases) to a
maximum of 30 minutes. This procedure is to be performed on a level surface with the
vehicle stationary, and in a properly ventilated area.
Procedure preconditions:
Engine oil level correct – neither underfilled nor overfilled
Engine running at operating temperature
Bring the engine up to an operating speed (no load) of 2000-3000 rpm and maintain this
condition for three minutes (bleeding procedure).
Let the engine idle for 15-30 seconds and reevaluate whether the noise is still present or
not.
Engine quiet – procedure is finished.
Engine noise is still present – repeat the procedure; perform steps #1 and #2 up to a
maximum of 5 times.
Only if the noise remains after performing the bleeding procedure 5 times: proceed by
performing the procedure for a final time, also at an engine operating speed of 2000-3000
rpm, but for a total time duration of 15 minutes.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.
(1) 11-12-7-591-617 N52 Cylinder head with valve
(1) 11-12-9-391-547 Set of Alu. screws F Cylinder
(1) 11-12-7-548-799 Bolt cylinder head
(1) 11-12-0-392-547 set of alu. screws
(3) 11-12-7-521-167 ASS-Stud Bolt
(2) 11-36-7-524-954 Collar Screw
(1) 11-12-7-555-757 Cylinder head gasket
(1) 11-12-7-548-921 Gasket set cylinder head
(1) 11-12-0-409-288 set of alu. screws
(2) 13-62-7-530-413 Torx screw
(2) 11-12-7-529-997 Torx Screw
(6) 33-32-6-768-354 Hex screw with collar
(1) 11-42-7-566-327 Set oil-filter Elem
(7) 07-51-0-017-954 Motor oil SW30
(1) 82-14-1-467-704 Antifreeze
(1) 22-11-0-392-551 Set of Alu. screws
September 2009
This Service Information bulletin supersedes SI B11 09 07 dated January 2009.
SUBJECT
Intermittent Hydraulic Valve Adjuster (HVA) Noise
MODEL
All E82, E83, E88, E85, E86, E60, E61, E70, E90, E91, E92 and E93 vehicles with N51,
N52 or N52K engines produced approximately up to November 31st 2008; refer to
cylinder head casting identification attachment.
SITUATION
An occasional ticking or rattling noise from the camshaft hydraulic valve lifters (HVA) may
occur during cold engine starts, due to frequent short-distance driving, or the noise may
occur for an extended period of time even though the engine is at operating temperature.
Improved parts were phased into production beginning on 10/1/2008 and fully
implemented on November 31st 2008.
CORRECTION
Do not perform the bleeding procedure that was previously provided in SI B11 09 07
which has now been deleted.
All vehicles produced between 10/1/2008 and 11/31/2008 must have each vehicle's
cylinder head casting number identified before hydraulic valve lifters (HVA) replacement,
due to staggered implementation. Refer to the attachment for the casting number
location. Vehicles produced after 11/31/2008 have already been fitted with improved
parts. Vehicles produced prior to 10/1/2008 will require the new parts.
Improved Casting Numbers
N51 (B30)
7588277.01
N52 (B30)
7588273.01
N52K (B30)
7588271.01
A cylinder head casting number that does not match will require replacement of the 12
exhaust camshaft hydraulic valve lifters (HVA) as per Repair Instruction RA 11 33 050,
Removing and installing/replacing all rocker arms. Only the exhaust camshaft and rocker
arms have to be removed in order to replace the hydraulic valve lifters. Do not remove or
replace any intake camshaft valve train components.
PARTS INFORMATION
Part Number
Description
Quantity
11 33 7 605 330
Hydraulic Valve Lifter (HVA)
12
Refer to EPC for additional gaskets, seals and bolts, as required by the Repair Instructions.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty, or the Certified Pre-
Owned program.
Please refer to the latest KSD for the applicable Main or Associated labor allowance for the
specific model.
Defect Code:
11 33 93 39 00
Labor Operation:
Labor Allowance:
Description:
00 58 248
Refer to KSD
Replace exhaust camshaft hydraulic valve lifters (HVA)
*Main Work
or
00 58 827
Refer to KSD
Replace exhaust camshaft hydraulic valve lifters (HVA)
+ Associated Work
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.
(1) 11-12-7-591-617 N52 Cylinder head with valve
(1) 11-12-9-391-547 Set of Alu. screws F Cylinder
(1) 11-12-7-548-799 Bolt cylinder head
(1) 11-12-0-392-547 set of alu. screws
(3) 11-12-7-521-167 ASS-Stud Bolt
(2) 11-36-7-524-954 Collar Screw
(1) 11-12-7-555-757 Cylinder head gasket
(1) 11-12-7-548-921 Gasket set cylinder head
(1) 11-12-0-409-288 set of alu. screws
(2) 13-62-7-530-413 Torx screw
(2) 11-12-7-529-997 Torx Screw
(6) 33-32-6-768-354 Hex screw with collar
(1) 11-42-7-566-327 Set oil-filter Elem
(7) 07-51-0-017-954 Motor oil SW30
(1) 82-14-1-467-704 Antifreeze
(1) 22-11-0-392-551 Set of Alu. Screws
Some owners had revised cylinder heads fitted under warranty although those days are now long gone, it seems just as effective to avoid using the car for very short journeys, change the oil more often than the bmw suggested interval & give it a long hard run regularly 
Rob
Rob
It doesn't seem to cause any issues, although it is a bit of a concern when you hear it!
I'm on my 4th car with an N52 engine and they have all done it to a certain extent - especially now that I don't use the car too often.
The best solution seems to be a longer drive and an Italian tune-up!
I'm on my 4th car with an N52 engine and they have all done it to a certain extent - especially now that I don't use the car too often.
The best solution seems to be a longer drive and an Italian tune-up!
