Technical Bulletin
Model(s)

Year

Eng. Code

Trans. Code

VIN Range From

VIN Range To

Tiguan

2010-2013

All

All

All

All

AX_EW000001

AX_EW057666

Tiguan

2014

All

All
AX_EW500001

AX_EW554593

Condition
87 14 04 June 19, 2014 2037095 Supersedes Technical Bulletin V871403 dated June 18, 2014 to update
procedure due to double retainer coming with new coolant hose and not as an additional part.
Air Conditioning Blows Warm, Compressor-Condenser Refrigerant Line

Technical Background
The air conditioning refrigerant line may come in contact with compressor pulley due to engine vibration.
In the air conditioning control unit the following entry is logged:
• B10ABF0 - refrigerant pressure - under lower limit

Note
Inspect refrigerant line between condenser and compressor. If line is not damaged or out of its retainer
this technical bulletin does not apply. Further diagnosis is required.

Production Solution
New refrigerant pipe, upper coolant hose and double clip.
• WVGAV3AX3EW057666 (12 November 2013)
th

• WVGCE2AX7EW554593 (2 December 2013)
nd

Page 1 of 9
© 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
New refrigerant compressor/condenser hose 5N0 820
721H.

New coolant hose with double retainer refrigerant line
holder 5N0 121 093L.
Note
New coolant hose comes with new retainer 5N0 121
093L.

Page 2 of 9
© 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
Service
Repair Procedure
• Evacuate the AC system. See repair group 87 Heating, Ventilation, and Air Conditioning in Elsa.
• Disconnect the compressor/condenser AC line from the condenser.
• Disconnect the compressor condenser AC line from the compressor and remove it from the vehicle.
• Support and lift the vehicle to remove noise dampener plate.

• Remove the radiator hose from the thermostat housing
to drain the coolant (Figure 1).
Note
Disconnect only the clamp off the existing coolant
temperature sensor housing. The housing pipe
attached to the engine can stay connected.

Figure 1
• Locate the after run coolant pump and turn the clamp
½ a turn from its original location away from the
compressor/condenser line.
Note
The picture shown in Figure 2 shows the AC line
installed to capture the potential contact area.

Figure 2
Page 3 of 9
© 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
Tip:
New location of the after run coolant pump hose clamp
(Figure 3).

Figure 3

• Lower the vehicle and remove the radiator hose (and
the original double retainer if equipped) from the
radiator and remove it from the vehicle (Figure 4).

Figure 4

Page 4 of 9
© 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
• Remove the original plastic radiator hose retainer from
the radiator and discard it. (Figure 5).

Figure 5

• Install the upper portion of new coolant hose 5N0 121
051M to the radiator and press the barbed end of the
new retainer clip into the hole in place of the old
retainer (Figure 6).

Figure 6

Page 5 of 9
© 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
• Install new refrigerant line 5N0820721H according to
the repair manual.
• Secure the compressor bolt to 22Nm and condenser
bolt to 12Nm (Figure 7).

Figure 7

• Secure retainer on the new AC hose as shown in
Figure 8.

Figure 8

Page 6 of 9
© 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
• Raise vehicle and attach the thermostat end of the
coolant hose and secure the clamp. Refill the engine
coolant (Figure 9).

Figure 9

• Recharge AC system according the specification label on the front core support. See repair group 87 Heating,
Ventilation, and Air Conditioning in Elsa.
• Check the ribbed serpentine belt for damage. If necessary replace the ribbed serpentine belt according to the
repair manual.

Page 7 of 9
© 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

Tiguan

2010-2013

All

All

All

All

AX_EW000001

AX_EW057666

Tiguan

2014

All

All
AX_EW500001

AX_EW554593

SAGA Coding
Claim Type:

Use applicable Claim Type

HST

Damage Location
(Depends on Service
No.)

---

Use applicable when
indicated in Elsa (L/R)

Damage
Service Number:
Code
8743

0010

Parts Manufacturer
Labor Operation

3) :

Model Names

Coolant Drain and Fill

1)

PU3

2)

19381700 = 50 TU

3) :

Labor Operation Remove and Install
Compressor/Condenser Pipe.

87431950 = 50 TU

Includes: Check ribbed serpentine belt.
3) :

Labor Operation Remove and Install Upper
19621999 = 20 TU
Coolant Hose (additional time provided to replace
coolant hose at time of A/C
compressor/condenser line replacement).
Labor Operation

3) :

Drain and refill refrigerant.

Causal Part: AC Compressor/Condenser Line

87031700 = 50 TU
5N0820721H

Diagnostic Time

4)

Page 8 of 9
© 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
GFF Time expenditure

01500000 = 30 TU max.

Road Test

01210002 = 00 TU

YES
NO

01210004 = 00 TU
Technical Diagnosis

01320000 = 00 TU max.

NO

Claim Comment: Input “As per Technical Bulletin 2037095” 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 Policies and Procedures Manual.

Required Parts and Tools
Description

Part No:

Quantity

AC Compressor/Condenser Line

5N0820721H

1

Coolant Hose

5N0121051M

1

No Special Tools required.

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 9 of 9
© 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.