V461901201024526
Service Bulletin Details
Public Details for: V461901201024526
Updated to include 2021 model year applicability.
- 2021 - 2020 - 2019 - 2018 - 2017 - 2016 - 2015 -
Models from 2021
Models from 2020
Models from 2019
Models from 2018
Models from 2017
Models from 2016
Models from 2015
Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 Condition Applicable Vehicles Model(s) Year Eng. Code Trans. Code VIN Range From VIN Range To All 2015-2021 All All All All (except Routan) Revision Table Instance Number Published Date Version Number Reason For Update 2010245/26 6/4/20 46-19-01 Include model year 2021 vehicles. 2010245/25 10/17/19 46-19-01 Include model year 2020 vehicles. 2010245/24 1/10/2019 V461901 Include model year 2019 vehicles. 2010245/1 9/9/04 V460402 Original publication. Technical Background Vibration / Pulsation or noise when braking may be due to Brake Disc corrosion protection which has not been completely removed by normal braking or surface rust built up during transportation. Note: This Technical Bulletin only applies once at PDI. Please note that vehicles in dealer inventory should be maintained per the recommended 30 days maintenance procedure to prevent excessive rust build up. Page 1 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 Production Solution No production change required. Service Vehicle Inspection Note: Abide by ALL traffic laws and be mindful of the vehicles around you while operating the vehicle. Step 1: Check and adjust the Tire pressure. Accelerate the vehicle to greater than 55 MPH (80 km/h). Apply the brakes firmly. Step 2: The following steps only apply to vehicles with Electronic Parking Brake (EPB): For vehicles equipped with Electronic Parking Brake (EPB), DO NOT APPLY PARKING BRAKE WHILE VEHICLE IS IN MOTION. Affected rear brake discs will have uneven color across the friction surface. This will determine if the rear discs need to be sanded. If it was determined that the rear brake discs need to be sanded: Clean the rear brake discs. Once completed, road test the vehicle to determine if the noise/vibration was eliminated. If the noise/vibration has not been eliminated, clean the front brake discs. If it was determined that the rear discs do not need to be sanded: Clean the front brake discs. The following steps only apply to vehicles without Electronic Parking Brake (EPB): Accelerate vehicle to 30 MPH (50 km/h). Carefully apply Parking Brake. If vibration or noise is observed from the rear of the vehicle, clean the rear brake discs. Once completed, road test the vehicle to determine if the noise/vibration was eliminated. If the noise/vibration has not been eliminated, clean the front brake discs. If vibration or noise is only observed from the front of the vehicle, clean the front brake discs. Page 2 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 Disassembly Inspection Remove Wheels, disassemble Brake Calipers, and remove Brake Disc. See the appropriate Repair Manual for the vehicle you are servicing. Paint mark Brake Discs for reinstallation (Left/Right). Paint mark Brake Pads for reinstallation (Left/Right, Inner/Outer). Using a micrometer, measure Brake Disc thickness. See appropriate Repair Manual in Elsa for minimum brake disc thickness. Inspect all brake components for damage from outside influences. Brake Disc Surface Cleaning Remove remaining corrosion protection coating or surface rust as follows: Sand Brake Disc surfaces until clean metal is visible using leading edge of 40-grit sanding disc in a clockwise direction (1-2 minute per surface). Replace sanding disc prior to moving to next Brake Disc surface. To achieve a crosshatch pattern: Repeat sanding process using trailing edge of 80-grit sanding disc in a counterclockwise direction. Replace sanding disc prior to moving to next Brake Disc surface. Clean all Brake Disc friction surfaces using soap and water solution. Tip: Brake Discs must be free of dust and particles left behind due to the sanding process. Page 3 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 Deglaze and Clean Brake Pads Place 80-grit sand paper on flat hard surface. Carefully sand Brake Pads until the surface glazing is removed. Note: Use one new 80 grit sand paper sheet per set of brake pads. Tip: See appropriate Repair Manual in Elsa for new Brake Pad thickness dimensions. Page 4 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 Reassembly Install Brake Discs, Brake Pads, Brake Calipers, and Wheels. See appropriate Repair Manual in Elsa for vehicle you are servicing. Road test vehicle to confirm vibration or noise concern is corrected. Warranty To determine if this procedure is covered under Warranty, always refer to the Warranty Policies and Procedures Manual 1) Model(s) Year(s) Eng. Code(s) Trans. Code(s) 2015-2021 All All VIN Range From VIN Range To All (except Routan) All All SAGA Coding Claim Type: Use applicable Claim Type 1) Service Number Damage Code HST 4650 0020 -- 4653 0020 -- Parts Manufacturer Damage Location 001 – Left 002 – Right 001 – Left 002 – Right Passat, CC/Tiguan/Eos/Touareg, and Golf R/eGolf, Atlas/Atlas Cross Sport/Arteon WWO 2) Jetta/Beetle/Beetle Cabrio, and Golf/Golf SportWagen, Alltrack, Tiguan LWB 3ME 2) CC/Tiguan/Eos/Arteon Front Brake Service Only Page 5 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 Labor Operation 3): Remove and Reinstall Front Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Brake Carriers 46142050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Discs 46502050 = See Elsa for latest time units Labor Operation 3): Sanding Front Discs and Pads 46503099 = 35 TU OR Rear Brake Service Only Labor Operation 3): Remove and Reinstall Rear Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Brake Carriers 46152050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Discs 46532050 = See Elsa for latest time units Labor Operation 3): Sanding Rear Discs and Pads 46503099 = 35 TU OR Front and Rear Brake Service Labor Operation 3): Remove and Reinstall Front and Rear Wheels 44052004 = See Elsa for latest time units 46142050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front and Rear Carriers and 46152050 = See Elsa for latest time units 46502050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front and Rear Discs and 46532050 = See Elsa for latest time units Labor Operation 3): Sanding Front and Rear Discs 46503099 = 50 TU Page 6 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 and Pads OR Atlas, Atlas Cross Sport, Tiguan LWB Front Brake Service Only Labor Operation 3): Remove and Reinstall Front Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Brake Carriers 46142050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Discs 46502050 = See Elsa for latest time units Labor Operation 3): Sanding Front Discs and Pads 46503099 = 35 TU OR Rear Brake Service Only Labor Operation 3): Remove and Reinstall Rear Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Brake Carriers 46152050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Discs 46532050 = See Elsa for latest time units Labor Operation 3): Sanding Rear Discs and Pads 46503099 = 35 TU OR Front and Rear Brake Service Labor Operation 3): Remove and Reinstall Front and Rear Wheels Labor Operation 3): Remove and Reinstall Front and Rear Carriers 44052004 = See Elsa for latest time units 46142050 = See Elsa for latest time units and Page 7 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 46152050 = See Elsa for latest time units 46502050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front and Rear Discs and 46532050 = See Elsa for latest time units Labor Operation 3): Sanding Front and Rear Discs 46503099 = 50 TU and Pads OR Passat Front Brake Service Only Labor Operation 3): Remove and Reinstall Front Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Discs 46502050 = See Elsa for latest time units Labor Operation 3): Sanding Front Discs and Pads 46503099 = 35 TU Rear Brake Service Only Labor Operation 3): Remove and Reinstall Rear Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Discs 46532050 = See Elsa for latest time units Labor Operation 3): Sanding Rear Discs and Pads 46503099 = 35 TU OR Front and Rear Brake Service Labor Operation 3): Remove and Reinstall Front and Rear Wheels Labor Operation 3): Remove and Reinstall Front and Rear Discs 44052004 = See Elsa for latest time units 46502050 = See Elsa for latest time units and Page 8 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 46532050 = See Elsa for latest time units Labor Operation 3): Sanding Front and Rear Discs 46503099 = 50 TU and Pads OR Jetta/Beetle/Beetle Cabrio Front Brake Service Only Labor Operation 3): Remove and Reinstall Front Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Discs 46502050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Brake Carriers 46142050 = See Elsa for latest time units Labor Operation 3): Sanding Front Discs and Pads 46503099 = 35 TU Rear Brake Service Only Labor Operation 3): Remove and Reinstall Rear Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Discs 46532050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Brake Carriers 46152050 = See Elsa for latest time units Labor Operation 3): Sanding Rear Discs and Pads 46503099 = 35 TU OR Front and Rear Brake Service Labor Operation 3): Remove and Reinstall Front and Rear Wheels 44052004 = See Elsa for latest time units 46502050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front and Rear Discs and 46532050 = See Elsa for latest time units Page 9 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 46142050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front and Rear Brake Carriers and 46152050 = See Elsa for latest time units Labor Operation 3): Sanding Front and Rear Discs 46503099 = 50 TU and Pads OR Touareg Front Brake Service Only Labor Operation 3): Remove and Reinstall Front Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Discs 46502050 = See Elsa for latest time units Labor Operation 3): Sanding Front Discs and Pads 46503099 = 35 TU OR Rear Brake Service Only Labor Operation 3): Remove and Reinstall Rear Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Discs 46532050 = See Elsa for latest time units Labor Operation 3): Sanding Rear Discs and Pads 46503099 = 35 TU OR Front and Rear Brake Service Labor Operation 3): Remove and Reinstall Front and Rear Wheels 44052004 = See Elsa for latest time units 46502050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front and Rear Discs and 46532050 = See Elsa for latest time units Page 10 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 Labor Operation 3): Sanding Front and Rear Discs 46503099 = 50 TU and Pads OR MY15-19 Golf SportWagen, Alltrack Front Brake Service Only Labor Operation 3): Remove and Reinstall Front Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Brake Carriers 46142050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Discs 46502050 = See Elsa for latest time units Labor Operation 3): Sanding Front Discs and Pads 46503099 = 35 TU OR Rear Brake Service Only Labor Operation 3): Remove and Reinstall Rear Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Discs 46532050 = See Elsa for latest time units Labor Operation 3): Sanding Rear Discs and Pads 46503099 = 35 TU OR Front and Rear Brake Service Labor Operation 3): Remove and Reinstall Front and Rear Wheels 44052004 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Carriers 46142050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front and Rear Discs 46502050 = See Elsa for latest time units and Page 11 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 46532050 = See Elsa for latest time units Labor Operation 3): Sanding Front and Rear Discs 46503099 = 50 TU and Pads Golf/Golf R/eGolf Front Brake Service Only Labor Operation 3): Remove and Reinstall Front Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Brake Carriers 46142050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front Discs 46502050 = See Elsa for latest time units Labor Operation 3): Sanding Front Discs and Pads 46503099 = 35 TU OR Rear Brake Service Only Labor Operation 3): Remove and Reinstall Rear Wheels 44052000 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Brake Carriers 46152050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Discs (Golf R & eGolf) 46532050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Rear Discs (Golf, Golf GTI) 46532050 = See Elsa for latest time units (carrier included) Labor Operation 3): Sanding Rear Discs and Pads 46503099 = 35 TU OR Front and Rear Brake Service Labor Operation 3): Remove and Reinstall Front and Rear Wheels 44052004 = See Elsa for latest time units Page 12 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 46142050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front and Rear Carriers and 46152050 = See Elsa for latest time units 46502050 = See Elsa for latest time units Labor Operation 3): Remove and Reinstall Front and Rear Discs and 46532050 = See Elsa for latest time units Labor Operation 3): Sanding Front and Rear Discs 46503099 = 50 TU and Pads Select 46503099 Causal Part: Outside Material 1 Axle Serviced 40-grit, 6-inch sanding disc Part No: PN01117 or equivalent And and 80-grit, 6-inch sanding disc Part No: PN01116 or equivalent $10.00 OR 2 Axles Serviced 40-grit, 6-inch sanding disc Part No: PN01117 or equivalent And and 80-grit, 6-inch sanding disc Part No: PN01116 or equivalent $20.00 Diagnostic Time 4) GFF Time expenditure 01500000 = 00 TU max. Road Test 01210002 = 10 TU 01210004 = 10 TU Technical Diagnosis 01320000 = 00 TU max. NO YES NO Claim Comment: Input “As per Technical Bulletin 2010245” in comment section of Warranty Claim. Page 13 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher. Technical Service Bulletin 46-19-01 - At PDI - Vibration / Pulsation or Noise when Braking (U.S. Only) Transaction No: 2010245/26 Release date: 6/4/2020 1) Vehicle may be outside any Warranty in which case this Technical Bulletin is informational only. 2) Code per warranty vendor code policy. 3) Labor Time Units (TUs) are subject to change with ELSA updates. 4) Documentation required per Warranty Policies and Procedures Manual. Required Parts and Tools No Special Parts required. Tool Description Tool No: Quantity 6-inch Dual Action sander (Blue Point® ) AT441A or equivalent - 40-grit, 6-inch sanding disc (3M®) 80-grit, 6-inch sanding disc (3M®) PN01117 or equivalent PN01116 or equivalent 4 (One Axle Serviced) or 8 (Two Axles Serviced) 4 (One Axle Serviced) or 8 (Two Axles Serviced) 80-grit sand paper Obtain from local supplier Micrometer (7mm-22mm) - - Metric Scale (0mm-20mm) - - 4 Sheets Additional Information All part and service references provided in this Technical Bulletin are subject to change and/or removal. Always check with your Parts Dept. and Repair Manuals for the latest information. Page 14 of 14 © 2020 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.