TB481404
Service Bulletin Details
Public Details for: TB481404
Power steering rack vibrations in steering wheel the customer
Models from 2014
2014 VOLKSWAGEN TOUAREG |
Models from 2013
2013 VOLKSWAGEN TOUAREG |
Models from 2012
2012 VOLKSWAGEN TOUAREG |
Models from 2011
2011 VOLKSWAGEN TOUAREG |
Technical Bulletin Model(s) Year Eng. Code Trans. Code VIN Range From VIN Range To Touareg 2011-2014 All All All All Condition 48 14 04 September 3, 2014 2038140 Power Steering Rack Vibrations in Steering Wheel The customer may state: 1. Shimmy/rotational vibration in the steering wheel at constant speed. Shimmy/rotational vibrations in the steering wheel at various speeds. 2. Shimmy/rotational vibrations in the steering wheel when braking. 3. Vibration felt in the entire vehicle: The vibration can be felt in the seat surfaces, in the underbody, in the foot well, or in the pedal. The vibration is more prevalent when braking/accelerating. Technical Background Flatspots: After a short stationary period (sometimes as little as a few hours) flat spots can develop after the warm tire has cooled down. The effect the flat spotted tire has on the vehicles performance depends on the type, dimension, make, and pressure of the tire. Flat spots alter the radial force fluctuation and must be driven out before balancing the wheel. Effects of increased radial forces on the vehicle: Increased radial forces on the front or rear tires cause vibrations in the vehicle. Increased radial forces on the front tires amplified by braking can also lead to vibrations in the vehicle. Page 1 of 7 plus attachments © 2014 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 Bulletin Explanations and definitions: Radial force variation (RFV) The radial force or wheel load is the force with which a tire is compressed (Figure 1) Tires have softer and stiffer areas along their circumference, which is illustrated using springs (Figure 1, A and B). Figure 1 shows the same tire at different points of rotation (A and B), as it rolls on level road with constant load (radial force). Figure 1 Tip: If this wheel rolls, the center of the wheel rises and falls X distance with a constant wheel load (illustration 1, arrow 1). This change in arrow 1 by X distance can be felt in the vehicle as vibration or shaking of the steering wheel. Note: The attached questionnaires must be filled out and submitted to the chassis team email box [email protected] and kept on file for warranty purposes. Production Solution No production change required. Service Procedure: • Complete the following steps to eliminate vibrations (flat spots) and radial force fluctuations. Page 2 of 7 plus attachments © 2014 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 Bulletin Warm balancing / matching of wheels 1. Check all tires for the following points: • Tread and side wall damage (for example: broken tread, impact damage/bubbles and so on). • Tread depth. WARNING: The manufacturer recommends: Replace tires damaged by external influences (for example impact damage/bubbles and so on). Damaged tires are an increased safety risk. Replace tires with a tread depth of under 4 mm, otherwise this procedure will not be totally effective. 2. Check and correct the tire pressure of every wheel to at least 36 PSI or the permitted maximum specified value. 3. Perform a test drive of at least 18 miles, if possible on a highway, traffic and road conditions permitting over different speed ranges (up to 60 mph). Note: Make sure that you do not endanger yourself or others during the test drive. During the test drive observe all traffic laws. 4. After the road test, raise the vehicle immediately and begin removing the wheels for balancing. Tip: New flat spots can develop during a short stationary period while the tires cool down so it is important to put the vehicle on the lift immediately following the test drive. Page 3 of 7 plus attachments © 2014 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 Bulletin 5. Balance the wheels on a stationary balancing machine. Tip: The manufacturer recommends to balance / road force the wheels on the -VAS 6230 A/B- Hunter machine. Measure, balance and (if necessary) match the wheel according to the instructions of the equipment. When tightening the wheel on the balancing machine make sure the contact surfaces of flange and wheel are clean, the wheel is correctly centered and a suitable cone and/or flange are used. We recommend the use of a five-finger flange. Note: The fluctuation of the radial force does not depend on the turning direction and is measured as the difference between maximum and minimum radial force (road force). If the radial force cannot be reduced below the specified value of 26 lbs. by matching, replace the tire. The wheels must be installed on the vehicle according to the instructions of the manufacturer and the repair manual. Secure the wheel on the vehicle • Check whether the contact surfaces on the brake disc and wheel are free of corrosion and dirt, clean if necessary. • Check whether the centering hole of the wheel and the centering of the hub are free of corrosion and dirt, clean if necessary. • The wheels holes and the wheel bolts must be free of dirt and corrosion. It must be possible to lightly turn the wheel bolts by hand without using a tool. Note: Severely corroded or damaged bolts must be replaced according to the repair manual/ETKA. • Make sure that the wheel bolts are the correct version and length. • Align the position of the brake disc holes/hub threads as shown in Figure 2. Insert the wheel on the hub and secure it with two opposite wheel bolts (number 1 and 2) loosely by hand. Screw in the remaining wheel bolts consistently by hand, it must be possible to lightly turn the wheel bolts. Ensure the precise centering. If necessary, release the wheel by lifting it slightly. Initially tighten the wheel bolts crosswise with 30 Nm. • Lower the vehicle to the floor. Page 4 of 7 plus attachments © 2014 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 Bulletin • Tighten all the wheel bolts crosswise with the specified tightening torque with a torque wrench by hand. The tightening torques of the vehicle manufacturer must be observed. Note any deviating values for steel or alloy wheels. Figure 2 • Ensure the correct vehicle-related tire pressure. • Test drive the vehicle. • Assess the vehicle again in the affected speed range. Tip: If the vibrations persist, call the helpline for further assistance. Before calling the helpline all steps in this bulletin must be completed and documented. Please be as specific as possible regarding the steps used and customer complaint when calling the helpline. Page 5 of 7 plus attachments © 2014 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 Bulletin Warranty To determine if this procedure is covered under Warranty, always refer to the Warranty Policies and 1) Procedures Manual Model(s) Year(s) Eng. Code(s) Trans. Code(s) VIN Range From VIN Range To Touareg 2011-2014 All All All All SAGA Coding Claim Type: Use applicable Claim Type Damage Service Number: HST Damage Location (Depends on Service No.) -- Use applicable when indicated in ElsaWeb (L/R) Code 4405 0013 Parts Manufacturer 1) Touareg WWO 2) 3) Labor Operation : Check Tires 44400199 = 10 TU Check all tires: • Damage • Tread depth • Tire pressure 3) Labor Operation : Balance 2 wheels 44059400 = 50 TU Or Balance 4 wheels 44059404 = 90 TU 3) Labor Operation : Clean 2 front wheel hubs 40643050 = 10 TU Page 6 of 7 plus attachments © 2014 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 Bulletin AND/OR Clean 2 rear wheel hubs 42683050 = 10 TU Diagnostic Time 4) GFF Time expenditure 01500000 = 00 TU max. NO Road Test 01210002 = 10 TU YES 01210004 = 10 TU Technical Diagnosis 01320000 = 00 TU max. NO Claim Comment: Input “As per Technical Bulletin 2038140” in comment section of Warranty Claim. 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 Policy Procedures Manual. Required Parts and Tools Part No: Part Description Quantity See ETKA Wheel Weights As required Tool Description Tool No: Wheel Balacing Machine VAS 6230 A/B- Hunter Or equivalent 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 7 of 7 plus attachments © 2014 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. Vibrations, steering wheel vibrations and juddering A test drive with the customer is necessary. Divide the complaint into the following symptoms: VIN number: ______________ FRED report number: ______________ The complaint occurs … at the beginning of the journey and gradually eases or disappears altogether at constant speed the and remains while driving at that speed in acceleration and overrun and when pressing the clutch or in the N position in acceleration and overrun, but not when pressing the clutch or in the N position in acceleration and overrun. It involves a juddering/vibrating in driving direction with pressed clutch or position N at an engine speed range of rpm to rpm. stronger when accelerating. Occurs in acceleration and overrun, but eases when the vehicle is put in N only when braking, whereby the pedal pressure is light, medium, when braking the complaint gets worse, when the pedal pressure is strong light, medium, strong The complaint can be felt in the*: driver or passenger seat, steering wheel, shifter lever, pedal, footwell, centre console or tunnel, rear seats. It involves*: vehicle vibrations, steering wheel vibrations, traction disruption, juddering, misfiring, humming or droning noises. Additional information*: speed of mph to mph since when does the complaint occur? with summer or winter tires in which gears or driving modes: (since x weeks, since vehicle purchase or tire change,…) *select all that apply Tire information sheet 1. Customer complaint _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ Be as specific as possible. Speed range, vibrations in complete vehicle, vibrations (only) in steering wheel, during acceleration, vibrations (only) when braking or accelerating, vibrations permanently or from stop, etc. 2. Vehicle data VIN number:_______________ Vehicle delivery date: _____/______/_____ Mileage of affected tires:____________ Vehicle mileage:____________ Urban/country/highway driving in %: ______/_______/______ Part number of wheel:____________ 3. Tire information (cold condition) Wheels installed? Factory …VW accessories …After Market Make of tire: __________________ Tire type: __________________ Dimension: _______________ Manufacturer code: ____________(e.g.: AO, AOE, R01) Make of balancing machine:_____________ Last calibration date of machine: ___________ Front left Front right Rear left Rear right DOT (last four digits mm-yy) Tyre pressure in bar Tire pressure according to label correct correct correct correct incorrect incorrect incorrect incorrect Tread depth in mm outside / center / inside Existing wheel weights Outer/inner balancing track (size) Damage on tire (yes/no) Damage on wheel (yes/no) 4. Tire information after the balancing Warm Balance (Conduct a test drive of at least 13 miles, at highway speeds (60 mph) if possible) Front left Front right Tire pressure in bar Road force value in pounds (lbs) before matching Road force value in pounds (lbs) after matching Missing weight per level/track in gram outside/inside *Road force values can be established with Hunter tester VAS 6230 Rear left Rear right