Buzzing Noise From VALVETRONIC Motor Before Or After Engine Operation (SI B12 04 18)
Publication date: 2018-02-01Reference number: SI B12 04 18
BUZZING NOISE FROM VALVETRONIC MOTOR BEFORE OR AFTER ENGINE OPERATION
TECHNICAL SERVICE BULLETIN
| BMW: | F22 (2 Series Coupe); F23 (2 Series Convertible); F30 (3 Series Sedan); F31 (3 Series Sport Wagon); F32 (4 Series Coupe); F33 (4 Series Convertible); F34 (3 Series Gran Turismo); F36 (4 Series Gran Coupe); F48 (X1 sDrive 28i or xDrive 28i); G30 (5 Series Sedan); With the B46O engine equipped |
| GROUP: | Engine Electrical Systems |
SITUATION
Buzzing noise may be heard from the Valvetronic motor when the vehicle is unlocked, before the engine is started, or after the engine is turned off.
There are no related faults saved in fault code memory.
CAUSE
Software in the Digital Motor Electronics (DME) may cause the Valvetronic motor to shudder at the end stop position.
CORRECTION
Reprogram the vehicle with latest version of ISTA Next
If the vehicle I-level is on a higher software level, perform diagnostics with ISTA Next.
PROCEDURE
For conditions that are similar to the situation described:
- Perform diagnosis with the latest version of ISTA Next.
- Program the vehicle with ISTA Next to the appropriate I-level shown below.
| Model | Target Integration Level |
|---|---|
| F48 (X1 sDrive 28i or xDrive 28i) | F056-17-07-502 or higher |
| F30 (3 Series Sedan) | F020-17-07-502 or higher |
| F31 (3 Series Sport Wagon) | |
| F32 (4 Series Coupe) | |
| F33 (4 Series Convertible) |
| Model | Target Integration Level |
|---|---|
| F30 (3 Series Sedan) | F020-17-07-502 or higher |
| F31 (3 Series Sport Wagon) | |
| F32 (4 Series Coupe) | |
| F33 (4 Series Convertible) | |
| F36 (4 Series Gran Coupe) |
| Model | Target Integration Level |
|---|---|
| G30 (5 Series Sedan) | S15A-17-07-505 or higher |
Note that ISTA Next will automatically reprogram and code all programmable control modules that do not have the latest software.
Always connect a BMW-approved battery charger/power supply ( SI B04 23 10 ) .
For information on programming and coding with ISTA, refer to CenterNet / TIS / Technical Documentation / Programming and Diagnostics / Programming Documentation.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks or the BMW Certified Pre-Owned Program.
| Defect Code: | 1137093700 | |
|---|---|---|
| Labor Operation: | Labor Allowance: | Description: |
| 00 00 006 | Refer to KSD2 | Performing "vehicle test" (with vehicle diagnosis system - checking faults) (Main work) |
| Or: | ||
| 00 00 556 | Refer to KSD2 | Performing "vehicle test" (with vehicle diagnosis system - checking faults) (Plus work) |
| And: | ||
| 61 21 528 | Refer to KSD2 | Connect an approved battery charger/power supply (indicated in KSD2 as Charging battery) |
| And: | ||
| 61 00 730 | Refer to KSD2 | Program/encode control unit(s) |
If you are using a Main labor code for another repair, use the Plus code labor operation 00 00 556 instead of 00 00 006.
Refer to KSD2/AIR for the corresponding flat rate unit (FRU) allowances.
During the same workshop visit, if a vehicle also requires another Technical Campaign or repair that also includes programming and encoding the control units, the programming procedure may only be invoiced one time.
Vehicle Programming and Encoding
- The programming procedure automatically reprograms and encodes all vehicle control modules which do not have the latest software I-level. If one or more control module failures occur "during" this programming procedure:
- Please claim this "consequential" control module-related repair work under the defect code listed in this bulletin with the applicable KSD2/AIR labor operations.
- For control module failures that occurred "prior" to performing this programming procedure:
- When "covered" under an applicable limited warranty, claim this control module-related repair work using the applicable defect code and labor operations in KSD2/AIR.