34 13 13 2028650
Service Bulletin Details
Public Details for: 34 13 13 2028650
Grinding or wheel bearing type noises from front when accelerating or at constant speed
Models from 2011
2011 AUDI A4 |
2011 AUDI A5 |
2011 AUDI A5 CABRIOLET |
2011 AUDI S4 |
2011 AUDI S5 CABRIOLET |
Models from 2010
2010 AUDI A4 |
2010 AUDI A5 |
2010 AUDI A5 CABRIOLET |
2010 AUDI S4 |
2010 AUDI S5 CABRIOLET |
Models from 2009
2009 AUDI A4 |
2009 AUDI A4 CABRIOLET |
2009 AUDI A5 |
2009 AUDI A5 CABRIOLET |
2009 AUDI S4 CABRIOLET |
Models from 2008
2008 AUDI A4 CABRIOLET |
Technical Service Bulletin 34, 37 Grinding or wheel bearing type noises from front when accelerating or at constant speed 34 13 13 2028650/2 January 15, 2013. Supersedes Technical Service Bulletin Group 34 number 12-08 dated February 21, 2012 for reasons listed below. Model(s) Year VIN Range Vehicle-Specific Equipment S4 and S5 2010-2011 All All with DSG Transmission A4, A4 Cabriolet, A5, A5 Cabriolet 2009-2011 All All with CVT Transmission A5, S5 2008-2011 All All with Manual Transmission A4, S4 cabriolet 2009-2011 All All with Manual Transmission Condition REVISION HISTORY Revision Date Purpose 2 - Revised Required Parts and Tools (Shim quantity) Revised Service (Formatted for clarity) 1 2/21/12 Original publication Customer states constant howling, droning, or scraping noises heard from the front of the vehicle when accelerating lightly. © 2013 Audi of America, Inc. Page 1 of 10 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 Audi 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 Technical Background The ball bearing for the left flange shaft spins in the gearbox housing because of a gap between the outer bearing ring and the support bracket. This can result in grinding marks and swarf (Figure 1, Figure 2). Figure 1. Grinding marks and swarf in gearbox housing. Figure 2. Grinding marks and swarf on flange housing and bearing. Tip: The affected ball bearings are only fitted on the left side; therefore, the complaints do not occur on the right side. © 2013 Audi of America, Inc. Page 2 of 10 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 Audi 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 Note: After a removal of the bolts to check for this condition, the bolts must always be replaced by new parts (new part number: N 91208801). Production Solution Not applicable. Service Try to reproduce the customer complaint so that it can be clearly assigned to this TSB by removing the support bracket and checking for wear marks. If wear marks are present as shown in Figure 1 or Figure 2 above, follow checks and repair instructions below: On V6 and V8 engines: 1. Remove the gearbox according to the repair manual. 2. Loosen the support bracket of the left final drive (if necessary) and pull the left flange shaft out of the gearbox according to the repair manual, taking care not to damage the shaft seal. 3. Proceed to Checks Section below. On all models with 4 cylinder engines: 1. Remove the left drive shaft according to the repair manual. 2. Remove the brake caliper and hang caliper off to the side without stressing the brake hose. 3. Detach the suspension strut from the lower control arm, and the suspension strut from the sway arm link. (Loosen upper bolts for the strut if needed to allow for more clearance). 4. If necessary for bearing housing clearance, remove the upper control arm bolt and allow bearing housing to swing out of the way. 5. Remove any shielding from the axle opening. © 2013 Audi of America, Inc. Page 3 of 10 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 Audi 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 6. Pull the left flange shaft out of the gearbox (according to the repair manual) (Figure 3). Support the flange shaft through the lower opening on the gearbox (service flap) to avoid damaging the oil seal between differential and gearbox housing (Figure 4). Figure 3. Pulling out the flange shaft. Note: After a removal, the bolts must always be replaced by new parts (new part number: N 91208801). Figure 4. Supporting the flange shaft. 7. After removing the flange shaft visually check the oil seal between differential and gearbox housing with a lamp through the lower gearbox opening (service flap) for damage. Note: Remove bearing and bearing bracket from axle and discard. Use new bearing for measurements. 8. Proceed to Checks Section below. © 2013 Audi of America, Inc. Page 4 of 10 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 Audi 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 Checks Section: The following steps assist in determining how many shims must be fitted between bearing and gearbox housing to make the bearing extend out from the case a minimum of 0.5mm to 0.8 mm (Figure 5). Figure 5. Bearing example. Tip: Bearing in Figure 5 is only for demonstration purposes. Always measure using a new bearing. Determine the number of shims to be fitted: 1. Use size 600 grit sandpaper to remove any corrosion or dirt on the gearbox flange surface. Do not clean the bearing carrier. 2. Measure whether the gap between bearing and gearbox housing is flush or extended from case. 3. Use a straightedge on two different positions on the bearing and on the gearbox housing (this leads to four measuring positions) (Figure 6). Figure 6. Apply straightedge on gearbox housing/bearing. © 2013 Audi of America, Inc. Page 5 of 10 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 Audi 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 4. Determine the value with a feeler gauge on four different points (Figure 7). Tip: Bearing in Figure 7 is only for demonstration purposes. Always measure using new bearing. Figure 7. Measuring gap 5. After the measuring, calculate how many shims must be fitted between bearing housing and bearing. Each shim is 0.30 mm. Examples: Below flush gap (Figure 8): Measured values: Top 0.10 mm, bottom 0.15 mm, left 0.15 mm, right 0.10 mm Biggest measured value: 0.15 mm For the calculation the value must be given a negative algebraic sign. - 0.15 mm + 0.30 mm = 0.15 mm + 0.30 mm = 0.45 mm + 0.30 mm thickness of 1st shim thickness of 2nd shim thickness of 3rd shim = 0.75 mm minimum is reached (0.5- 0.8 mm) Figure 8. Determine the below flush value. Three shims are needed. Note: Although the bearing may extend from the case as shown, the distance may not be enough to hold the bearing tight. Measure as follows to determine and correct. © 2013 Audi of America, Inc. Page 6 of 10 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 Audi 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 Extended from case gap (Figure 9): Measured values: Top 0.10 mm, bottom 0.15 mm, left 0.10 mm, right 0.10 mm Smallest measured value: 0.10 mm + 0.30 mm = 0.40 mm + 0.30 mm 1st shim 2nd shim = 0.70 mm minimum is reached (0.5- 0.8 mm) Two shims are needed. Figure 9. Determine the extended value. Reassembly: 1. Install new support bracket and bearing onto the shaft per repair manual, being sure the part number of the support bracket is pointing outward. Tip: When fitting the support bracket the part number must point to the outside. 2. Clean the flange shaft with a fluff-free cloth and slightly lube the shaft at the seal contact area using G 052128A1. 3. Install the shims and feed the shaft back through the opening of the lower gearbox side with appropriate support, taking care not to damage the seal (Figure 10). 4. Be sure to replace the support bracket bolts. Figure 10. Position of shims. Note: Because the bearing turns, it may have taken material off of the bearing carrier in axial and radial directions. The resulting free play can be ignored, as a turning of the outer bearing ring is prevented by the axial clamping force of the support bracket. © 2013 Audi of America, Inc. Page 7 of 10 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 Audi 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 Warning: Any bolts or fasteners that were removed, loosened, or that are for one-time use must be replaced per ELSA instructions. © 2013 Audi of America, Inc. Page 8 of 10 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 Audi 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 Warranty Claim Type: Use applicable claim type. If vehicle is outside any warranty, this Technical Service Bulletin is informational only. Service Number: 3437 Manual 3737 Automatic Damage Code: 0010 Labor Operations: Remove and install drive shaft 4 Cylinder Manual Check gearbox transmission 4 Cylinder Automatic Transmission 6 and 8 Cylinder Manual /DSG Transmission Diagnostic Time: 4041 1900 90 TU 3435 0199 20 TU Repair gearbox housing 3437 4199 90 TU Remove and install drive shaft 4041 1900 90 TU Check automatic gearbox 3735 0199 20 TU Repair gearbox housing 3737 4199 90 TU Remove and install gearbox 3435 19XX Use labor operation for appropriate model/transmission. Check gearbox 3435 0199 20 TU Repair gearbox housing 3437 4199 50 TU GFF No allowance 0 TU Road test prior to service procedure 0121 0002 10 TU Road test after service procedure 0121 0004 10 TU Technical diagnosis at dealer’s discretion (Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details) Claim Comment: As per TSB #2028650/2 All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures Manual. Claims are subject to review or audit by Audi Warranty. © 2013 Audi of America, Inc. Page 9 of 10 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 Audi 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 Required Parts and Tools Tip: For customer satisfaction to reduce time down, it is recommended to pre-order 4 shims (0B4409227) as most vehicles will require 1 to 4 shims. Return all unused portions. Part Number Part Description Quantity 0B4409294D Deep-groove ball bearing 1 0B4409175C 0B4409175D Support bracket (flange for final drive) 0AW and 0B2 Support bracket (flange for final drive) 0B5 and 0B4 1 1 0B4409227 Shims As needed (4 maximum). 0B4409297 CIRCLIP 1 N 91208801 M8 bolts 3 G 052128A1 Grease for radial oil seal .25 Additional Information All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information. © 2013 Audi of America, Inc. Page 10 of 10 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 Audi 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.