S.A.T.

204 MV

area

no.

Service Bulletin
Circolare Tecnica - Technisches Rundschreiben - Circulaire Technique - Circular Tecnica

Date:

29 January 2018

Re:

Brembo front brake master cylinder float

Product:

F4 RR – F4 RC

RECALL NOTICE:
On the motorcycle models in question, the BREMBO front brake master cylinder may be subject to
potential malfunction during normal use of the motorcycle and may cause loss of control.
The remedy is to check and replace a part inside the front brake master cylinder. The
replacement/reimbursement procedure is highlighted below.
For the safety of our customers and as required by law, the motorcycles affected by the recall
cannot be delivered to customers before having made the required intervention.
IDENTIFICATION OF VEHICLES AFFECTED BY THE DEFECT:
This recall concerns 477 motorcycles. Please refer to the attached list for the chassis numbers
involved.
NOTIFICATION TO THE CUSTOMER:
MV Agusta will send a letter to all registered Customers to inform them of the recall, inviting them to
take the bike to their dealer. A facsimile of the customer letter is attached.
To protect the safety of our motorcyclists, it is our common responsibility to ensure that the recall
service is carried out on all the motorcycles involved. We also strongly urge you to carry out the
recall service even if the motorcycle was not purchased at your dealership.
You are also required to perform the recall service on all motorcycles involved present in your
warehouse before delivery, rental or leasing.
If you are not sure that the safety recall has been completed on a particular motorcycle or for any
support, please contact MV Agusta Customer Service via e-mail
([email protected]).

IMPORTANT NOTE:
Please contact the owners of the models involved that are not registered. Notify them of the safety
call and make arrangements with them to carry out the recall intervention. We also ask you to
forward the registration as soon as possible in order to be able to send a letter to them, as required
by the law in force of your market.
RECALL PROCEDURE:
Check the chassis number (VIN) of your bike. If it is included in the list attached to this bulletin,
proceed with the warranty request as specified in the following points.
WARRANTY REQUEST:
- Send the Warranty Request to activate the spare part order and subsequent reimbursement of the
spare part and labour; in addition to the complete data of the motorcycle, please specify the
following:
 Warranty type = 2 options available:
o New motorcycles in stock = GX
o Motorcycles sold with warranty activated = GS







Special warranty number = 2814 (to be used for both GX and GS)
1 piece code = Code 8000C5738
Operation code: P 999
Labour time: 0.8 hrs.
Defect code: 080
Date of problem: enter date of entry of warranty request

INTERVENTION PROCEDURE
Contact the customer and request the bike to be returned to your workshop to perform the
necessary checks;
Check the number relating to the production batch of the master cylinder stamped on the body of the
same and indicated in the figure:

Units included in the following ranges must be subjected to the float replacement intervention:

from 5C20 to 5M31
from 6A01 to 6M31
from 7A01 to 7H31
NOTE: the numbers and letters that form the identification number of the production batch
are sequential
If the brake master cylinder is not involved in the replacement intervention you can return the bike to
the customer.
It will be necessary to fill in all the fields of the "Compliant Motorcycle Declaration" form attached to
this bulletin, and send it completed to the following email addresses:
recipient: [email protected]
copy to:
[email protected] ;
[email protected] ;
[email protected] ;
The date of repair must NOT be included in the warranty request previously sent.
The warranty request will be modified and completed by our technical service upon receipt of the
form; reimbursement of the material with 0.2 hours labour will in any case be sent.

SERVICE PROCEDURE TO REPLACE THE FLOAT
- Adequately protect the work area:

NOTE: In case of accidental dripping, immediately clean the affected area with water.

- With the motorcycle positioned on the side stand and steering turned to the right side, in order to
have the upper edge of the front brake fluid reservoir parallel to the ground, mark with tape the
brake fluid level inside as shown in the following photo:

- Remove the plexiglass of the fairing.
- Remove the brake fluid reservoir cap.
- Completely suction out the fluid inside the reservoir.
- With the steering turned to the right, position a suitable collection system and open the bleed screw
and suction out the brake fluid inside the front brake master cylinder body; actuate the lever 3 times
with the bleed screw open to eliminate any residual fluid:

- Close the bleed screw momentarily.
- Remove the brake lever.

- Remove the boot seal in front of the piston:

- take a kit code 8000C5738.

- Take the new float from the kit provided and lubricate it with the fluid provided in the kit near the
two rubber seals already installed on the float:

- Place a suitable container under the brake master cylinder body and remove the retaining Seeger
ring:

- Remove the float, the return spring and its guide:

Please pay attention to the identification of the old and new float:

NEW

OLD

NOTE: the old float must not be reused in any way and must be immediately destroyed.
- Clean the area of any residual fluid or impurities.
- Insert the new float, adequately lubricated, with the spring and its guide, taking care to insert it
without forcing and perpendicularly.

- Manually actuate the float a few times, verifying that there is no anomalous friction.
- Fit the new Seeger ring supplied with the kit and subsequently rotate it inside its seat in order to
check its correct positioning:

- Actuate the float again manually to check it slides freely inside the cylinder.

- Apply the specific grease supplied in the kit to the groove of the float:

- Fit the new boot seal supplied in the kit on the lever pin:

- Insert the boot seal in its seat on the cylinder body, taking care to check that the seal surface and
the surface of the cylinder body with which it is in contact are parallel in all their points.

- Reassemble the brake lever.
- Check the correct movement of the lever by actuating it a few times.
- Place the steering to the left and refill the brake fluid reservoir with fluid from a sealed container.
- Position the steering to the right and bleed the brake master cylinder until there is no more brake
fluid in the reservoir.
- Fill the reservoir again up to the previously marked level (the bike must be positioned on the side
stand with steering turned to the left).
- Tighten the bleed screw to the prescribed torque between 12 Nm and 16 Nm and clean the inside
of the screw of any residual fluid.
- Clean and position the diaphragm of the reservoir and close it with its cap.
- Apply a strip of adhesive tape at the height indicated in the photograph on the lever of the front
brake, mark it with a felt-tip pen and apply the elastic supplied with the kit to the brake lever with a
double loop; measure the distance of the lever from the hand grip in the previously marked area and
keep the elastic applied for 10 min:

- After 10 minutes check again the distance of the lever from the hand grip: the maximum allowed
yield of the lever is 3mm. In the event of a higher yield, repeat the bleeding operation of the brake
master cylinder.
- Thoroughly clean all the areas involved in the operations described above.
- Perform a dynamic test of the bike to verify compliance.
- Complete the Warranty Request procedure by entering the repair date.
NOTE: we also remind you that according to the new warranty management functionalities
and procedures, the intervention request must be completed with the date of repair in order
to proceed with correct reimbursement of the warranty (see technical communication No.
004).
Thanking you in advance for your cooperation, we remain at your disposal for any technical support.
Yours sincerely,

MV AGUSTA MOTOR S.p.A.
Technical Support Service
Recall 2814-18RC01
Attachments:
1 - Complete list of motorcycles involved in Safety Recall 2814-18RC01
2 - Facsimile of letter sent by MV Agusta to registered motorcycle owners.
3 – "Compliant Motorcycle Declaration" form

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