Brake Pad Maintenance Services: Brake Disc Resurfacing Guidelines (SI B34 10 16)

Publication date: 2018-09-01
Reference number: SI B34 10 16

BRAKE PAD MAINTENANCE SERVICES: BRAKE DISC RESURFACING GUIDELINES

TECHNICAL SERVICE BULLETIN

Reference Number(s): SI B34 10 16, Date of Issue: September 01, 2018

BMW:	All With Standard Brake Discs/Rotors (Non-Drilled or Non-Ceramic Brake Disc/Rotors)

SITUATION

Vehicle comes to the workshop for a:

Brake pad maintenance service (CBS/CBR displaying "Recommended" or "Due - brake pads are at or below 4 mm).

And, if applicable, this brake pad maintenance task is done in conjunction with either a:

A. Vehicle inspection to address a customer's brake-related concern; and/or

Complimentary multi-point or State mandated inspection;
And, your center's inspection of the vehicle confirms that the:
- The brake discs/rotors surfaces are not suitable for the installation of new brake pads "alone" due to grooving/scoring and/or corrosion as described in the attachment to this bulletin

CORRECTION

When an axle's brake disc/rotor measured thicknesses are still above the minimum specification, the procedure of resurfacing the brake discs/rotors has been implemented as an alternative to their replacement, as outlined in this bulletin.

For each axle, as required and when permissible, resurface the brake discs/rotors with a BMW approved "on-car" brake lathe.

NOTE: E7X "M" vehicles and vehicles equipped with QMVH rear differential are excluded from rear rotor resurfacing.

BMW Approved "On-Car" Brake Disc/Rotor Lathes:

For the list of BMW approved "on-car" brake disc/rotor lathe machines, refer to BMW Equipment Program (www.bmwcentersolutions.com ).

Attention: The BMW approved "on-car" brake lathe has been added to your workshop's list of required equipment (found in TIS/Tools & Equipment/BMW Workshop Equipment List).

By February 15, 2017 , BMW NA provided a one-time Manufacturer's discount of $1,500 per center that was applied as a miscellaneous credit to your center's non-vehicle billing account.

This discount was to be used to purchase one of the approved machines listed in the Equipment Program . In exchange for this discount, all BMW centers were required to submit their purchase order for the On-Car Brake lathe by April 15th, 2017.

On and after May 1, 2017 , all BMW centers are required to follow all the corresponding service information bulletins. Any rotors submitted for reimbursement under Warranty will be subject to review by the Warranty Parts Return Center (WPRC) and subject to debit, if found suitable for machining. If you have any concerns about making the purchase of the On-Car Brake Lathe, please contact the Warranty Department at warrantydealerreviews@bmwna.com

PROCEDURE

Compare the discs/rotors condition from the repaired vehicle, with the "classification" examples provided in the "Attachment_B341016_Categorization".
Measure the brake disc/rotor thicknesses on the applicable axle(s).
Proceed as follows:

Brake Discs/Rotors are "at or below" the Minimum Specification

All Attachment Categorizations:

If a brake disc/rotor thicknesses on an axle are at or below the minimum specification, replace the brake discs/rotors

Brake Discs/Rotors are "above" the Minimum Specification

Attachment Categorizations: CATEGORY 1

If the brake disc/rotor thickness measurements are above the minimum specification, re-use the existing discs/rotors when performing a brake pad maintenance service (resurfacing or replacement is not necessary).

Attachment Categorizations: CATEGORY 2

If the measured brake disc/rotor thicknesses are:

Above the minimum thickness specification (stamped on the rotor, or from the ISTA "Brake Replacement" repair instruction/Technical Data) PLUS 0.5 mm;

Then the brake discs/rotors on that axle should be resurfaced using a BMW approved on-car brake disc lathe.

NOTE: It is recommended to make one pass and remove 0.125mm from the inner and outer friction surface (total 0.250mm) of the brake disc/rotor.

In some cases an additional pass may be necessary to achieve an acceptable friction surface for the new brake pads.
- This additional pass requires documented shop foreman authorization.
In some rare cases where the machining has to be aborted due to rotor runout above 0.1mm or taper greater than 0.15mm, the attempt to cut and exchange of the brake disc/rotor will be reimbursed.
- The aborted attempt also requires documented shop foreman authorization.
All rotors where the attempt to cut has been aborted due to run-out or taper will be on return to the WPRC for measurement.
In order to ensure the rotors are within BMW specifications after cutting, the minimum thickness measurement per axle must be noted after resurfacing.

Attachment Categorization: CATEGORY 3

Replace the brakes discs/rotors.

NOTE: Claims for brake discs which are replaced, the parts may be requested by WPRC for return/inspection.

PARTS INFORMATION

Obtain and confirm the part numbers for your specific vehicle by entering the chassis number in either ETK or AIR which takes into account specific equipment and/or options.

Part Number	Description	Quantity
Refer to ETK	Front brake pads (Set)	1
Refer to ETK	Rear brake pads (Set)	1
Refer to ETK	Brake pad paste	Per axle as needed.

And, if necessary:

Refer to ETK	Front brake Discs/Rotor*	2
Refer to ETK	Rear brake Discs/Rotor*	2

Also refer to ETK (EPC) and the repair instructions for information about onetime use fasteners, other screws/bolts, gaskets and seals that must also be replaced while performing this repair.

NOTE: Replace only as outlined in the "Attachment Categorizations."

WARRANTY INFORMATION

Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks.

Per the attachment, when Categorizations 2 and 3 Apply

BMW Maintenance Programs (up to and including 4 years or 50,000 miles)

When one of the following programs are active:

BMW Maintenance Program (up to 4/50) - Up to and including model year 2016 vehicles; or the
Optional BMW Ultimate Care + "Full Maintenance Programs" (Up to 3/36 or 4/50 as applicable) -

Model year 2017 vehicles and newer:

Brake disc resurfacing, or as required, replacement (front, rear or both), in conjunction with a required brake pad maintenance service task (replacement) is covered.

Claim and submit the brake disc repair portion separately from the brake pad maintenance service task as follows (in additional to the Standard scope):

Front Brakes

Defect Code:	85810175MP	Brake Pads - Front in conjunction with brake disc resurface/replace
Labor Operation:	Labor Allowance:	Description:
00 00 612	Refer to KSD2	Service, front brakes

And, as applicable, claim the front brake disc repair portion separately as follows:

Defect Code:	3411005400	Brake disc, front - Scratches, score marks
	Or:
	3411007500	Brake disc, front - Corroded
Labor Operation:	Labor Allowance:	Description:
34 11 667	Refer to KSD2	Fine grind both sides of both front brake discs (Brake caliper removed)
And, as needed:
34 99 000	2 FRU	Associated work: Work time to perform an additional finish cut (one or both sides) when required.
Or:
34 11 613	Refer to KSD2	Removing and installing or replacing front brake discs (Brake pads removed)
Or:
34 11 612	Refer to KSD2	Removing and installing or replacing front brake discs (Brake caliper removed)

Or:

Rear Brakes

Defect Code:	85810275MP	Brake Pads - Rear in conjunction with brake disc resurface/replace
Labor Operation:	Labor Allowance:	Description:
00 00 614	Refer to KSD2	Service, rear brakes

And, as applicable, claim the rear brake disc repair portion as follows:

Defect Code:	3421005400	Brake disc, rear - Scratches, score marks
	Or:
	3421007500	Brake disc, rear - Corroded
Labor Operation:	Labor Allowance:	Description:
34 21 947	Refer to KSD2	Fine grind both sides of both rear brake discs (Brake caliper removed)
And, as needed:
34 99 000	2 FRU	Associated work: Work time to perform an additional finish cut (one or both sides) when required.
Or:
34 21 932	Refer to KSD2	Removing and installing or replacing rear brake discs (Brake pads removed)
Or:
34 21 931	Refer to KSD2	Removing and installing or replacing rear brake discs (Brake caliper removed)

Or:

Front and Rear Brakes

Defect Code:	85810375MP	Brake Pads - Front and Rear in conjunction with brake disc resurface/replace
Labor Operation:	Labor Allowance:	Description:
00 00 613	Refer to KSD2	Service, front brake/rear brake

And, as necessary, in conjunction with the Defect Code 85 81 03 75 MP line item:

Claim the applicable front and/or rear brake disc repair portion (Defect Codes, labor operations and parts) separately from the brake pad maintenance service task the same as noted above.

Within 4/50 Summary: Brake Pads and Discs - Defect Code Summary:

Axle	Front	Rear	Front and Rear
Vehicle's Current: Age/Mileage	Up to 50,000 miles
Up to and including Month 48	85 81 01 75 MP	85 81 02 75 MP	85 81 03 75 MP
34 11 00 54 00	34 21 00 54 00	34 11 00 "54 or 75" 00
34 11 00 75 00	34 21 00 75 00	34 21 00 "54 or 75" 00

Or:

BMW Maintenance Programs (beyond 4 years or 50,000 miles)

When one of the following programs are active:

BMW Maintenance Program Optional Upgrade (4/50 to 6/100) - Up to and including model year 2016 vehicles; or the
Optional BMW Ultimate Care + "Full Maintenance Programs" (60/75, 72/100 or 84/125 as applicable) - Model year 2017 vehicles and newer
Brake disc resurfacing, or as required, replacement (front, rear or both), in conjunction with a required brake pad maintenance service task (replacement) is covered.

Claim and submit the brake disc repair portion together with the corresponding brake pad maintenance service task Defect Code as follows:

Front Brakes

Defect Code:	85820175MP	Brake Pads - Front in conjunction with brake disc resurface/replace
Labor Operation:	Labor Allowance:	Description:
00 00 612	Refer to KSD2	Service, front brakes
And:
34 11 667	Refer to KSD2	Fine grind both sides of both front brake discs (Brake caliper removed)
And, as needed:
34 99 000	2 FRU	Associated work: Work time to perform an additional finish cut (one or both sides) when required.
Or:
34 11 613	Refer to KSD2	Removing and installing or replacing front brake discs (Brake pads removed)
Or:
34 11 612	Refer to KSD2	Removing and installing or replacing front brake discs (Brake caliper removed)

Or:

Rear Brakes

Defect Code:	85820275MP	Brake Pads - Rear in conjunction with brake disc resurface/replace
Labor Operation:	Labor Allowance:	Description:
00 00 614	Refer to KSD2	Service, rear brakes
And:
34 21 947	Refer to KSD2	Fine grind both sides of both rear brake discs (Brake caliper removed)
And, as needed:
34 99 000	2 FRU	Associated work: Work time to perform an additional finish cut (one or both sides) when required.
Or:
34 21 932	Refer to KSD2	Removing and installing or replacing rear brake discs (Brake pads removed)
Or:
34 21 931	Refer to KSD2	Removing and installing or replacing rear brake discs (Brake caliper removed)

Or:

Front and Rear Brakes

Defect Code:	85820375MP	Brake Pads - Front/Rear in conjunction with brake disc resurface/replace
Labor Operation:	Labor Allowance:	Description:
00 00 613	Refer to KSD2	Service, front brake/rear brake

And, as necessary, under Defect Code 85 82 03 75 MP:

Claim the applicable front and/or rear brake disc repair portion (labor operations and parts) "together" with the brake pad replacement as noted above.

Work time labor operation code 34 99 000 is not considered a Main labor operation. Also, since the "work time" FRU allowance to be claimed is specified, a separate punch time is not required.

Under Defect Code 85 82 03 75 MP, when applicable, claim labor operation 34 99 000 for either 2 or 4 FRU that applies to the scope of the repair performed.

Beyond 4/50: Brake Pads and Discs - Defect Code Summary:

Axle	Front	Rear	Front and Rear
Vehicle's Current: Age/Mileage	50,001 miles and higher as allowable by the "MP" Upgrade
Month 49 and older as allowable by the "MP" Upgrade	85 82 01 75 MP	85 82 02 75 MP	85 82 03 75 MP

NOTE: The brake pad replacement flat rate labor operations include measuring the thickness of the corresponding brake discs/rotors.

QUESTIONS REGARDING THIS BULLETIN

Technical inquiries	Submit feedback at the top of this bulletin
Warranty inquiries	Submit an IDS ticket to the Warranty Department or use the chat available in the Warranty Documentation Portal
Parts inquiries	Submit an IDS ticket to the Parts Department

Supporting Materials

picture as pdf Attachment B34 10 16 Categorization.pdf