View Full Version : Please Help 2011 VW Tiguan 170TDi 4 Motion Problem. Heater & AC vents not allowing enough air flow - UK
The car has 26,000 miles on the clock, has recently been serviced at the VW dealer, has had an air conditioning service etc.
The problems were first noticed when it started to get cold last year so probably Aug/Sept 2013.
The symptoms are:
Drive for more than an hour constantly without stopping (i.e. on the Motorway) and you start to notice that you're feeling cold. This is with the heating set to 22oC or there abouts. You turn the temp up a couple of degress, no real difference is heard but you wait. Then you put the temp up to max and the fan speed increases but the outlet from the vents is no more than before. This is as if a vent flap somewhere is stopping the air from getting out. Now you're really cold and you've switched the heated seats to try to help but it's not enough. You now press all of the vent buttons, you max out the fan speed as well as the temp. The fan can be heard to be working hard but there is still only a small amount of air coming out of the vents... and I mean all of the vents. Foot vents, windscreen vents, dash vents etc.
You pull off the motorway and come to a junction or you come into some traffic on the motorway for more than 2-3 minutes and all of a sudden you can hear the air flow change from behind the dash and all of a sudden, you've got plenty of hot air! You carry on your journey and it slowly cuts off again so that you're once again frozen and can't get the heat through.
Our Tiguan first started faulting whilst under warranty but it's just run out. Thankfully our VW dealer has had the car in 5 or 6 times now for the same problem and so because it's an ongoing issue, they're still dealing with it under the VW warranty.
So far, they have reset the ECU, then they've done an ECU software update (in fact the whole vehicle had all of the ECU's software updated at the time), then they've replaced the control unit in the dash as this houses the main temperature sensor (small round, looks like a button on the control panel) and they've had it in a few times more testing it to get it to fault but of course, they can't get it to go wrong because they're never driving it for long enough or in extreme enough weather conditions. They have driven it for 2 hours and not had it go wrong but that day was not that hot or cold.
I have plugged in (with Vag-Com) to check for faults (none found), to check various measuring blocks to see what the system is registering but can't find anything obvious.
Then around a month ago, I drove it (3-400 mile journey at varying times of the day) on a typical spring day and found that in the middle of the day when the sun was beating down, after an hour the air conditioning was not keeping me cold enough. Sure enough there wasn't enough air coming through the vents. No amount of pressing buttons etc made any difference but after coming to a stop in traffic, all of a sudden I was freezing cold with a very effective air conditioning system! Later that day on the return journey, it was 4oC outside! Yet again, I was bloody frozen and could get warm enough - same issue, not enough air coming out of the vents.
I am a VW nut through and through but this is starting to get on my wick. My wife is less than impressed to say the least, especially as we now have a 2 month old son. I suggested that we go with a VW for her as a good reliable car. Now I'm starting to regret it.
The car will go back again to VW but I know that they've been onto VW technical several times and have no idea what to do next.
I should add, the engine gets up to temp normally without issue. The heater/air conditioning work well on short journeys so the cooling system or air conditioning systems are not at fault in themselves.
Has anyone been through this already?
Thanks in advance.
MG
I've had a PM from Flash but can't reply due to my low number of posts on the forum so, I'm not ignoring you. I just tried to reply and was told I couldn't and it didn't save my post either :-(
Anyway... I'm away working this week so can't get ECU or software version numbers but as soon as I can, I will.
Please could you send me a link to the Technical Bulletin describing my problem? I'd be interested to see what it says.
My email address is Syncros8@gmail.com if you want to send me anything.
It'd not fixed yet and goes back in next Tuesday to VW for more testing!
MG
Update:
Having talked in detail to our local VW dealer, they have assured me that they carried out the technical bulletin instructions the first time we brought the Tiguan in.
I've just dropped it off with them again as we're going on holiday for a week so they have some time to play with it and work out what's going wrong.
Before I took it in, I plugged in to read off info.
Here's a link to the detail which I hope will mean for to you than me...
http://i690.photobucket.com/albums/vv264/performanceghia/Your%20Bucket%202/HVAC16614_zpsaf645cfc.png
http://i690.photobucket.com/albums/vv264/performanceghia/Your%20Bucket%202/HVACcoding16614_zpsa5e5106b.png
I have also carried out a full scan of all of the ECUs as below.
1-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
22-AWD -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
2E-Media Player 3 -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CFGB) Labels: 03L-906-018-CFF.clb
Part No SW: 03L 906 018 FB HW: 03L 907 309 R
Component: R4 2,0L EDC H23 8214
Revision: 42H23--- Serial number: 00000000000000
Coding: 00190012042700080000
Shop #: WSC 01324 020 00200
ASAM Dataset: EV_ECM20TDI01103L906018FB 003009
ROD: EV_ECM20TDI01103L906018FB.rod
VCID: 6FEBE5F3B6F2EF6672D-803A
No fault code found.
Readiness: 0 0 0 0 0
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 5N0-614-109-C4.clb
Part No SW: 5N0 614 109 Q HW: 5N0 614 109 Q
Component: J104 C4 450 V2FD 0006
Revision: --H28--- Serial number: 00000003980654
Coding: 0014642
Shop #: WSC 01324 020 00200
VCID: 397F1BAB703671D69C9-806C
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255) Labels: 5K0-907-044.clb
Part No SW: 5K0 907 044 GK HW: 5K0 907 044 GK
Component: Climatronic H19 1313
Revision: 00001004
Coding: 0000004002
Shop #: WSC 08215 000 1048576
ASAM Dataset: EV_Climatronic A01010
ROD: EV_ClimaAutoBasis_SE36.rod
VCID: 7AFDC4A7FDB0BACED53-802F
No fault code found.
-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels: 1K0-937-08x-09.clb
Part No SW: 5K0 937 084 F HW: 5K0 937 084 F
Component: BCM PQ35 B 011 0046
Revision: BA011001
Coding: 48180A3B8025F1C0400800809000002443013088524D85605C 8000000040
Shop #: WSC 01324 020 00200
VCID: 3567179B9C2E95B6781-8060
Subsystem 1 - Part No SW: 5N2 955 119 HW: Labels: 1KX-955-119.CLB
Component: Wischer 28031 013 0203
Coding: 009795
Subsystem 2 - Part No: 1K8 951 171
Component: DWA-Sensor 00 001 0104
Coding: 000000
Subsystem 3 - Part No: 1K8 951 605 B
Component: LIN BACKUP HO H11 9005
Coding: 000000
No fault code found.
-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J791) Labels: 1T0-919-475.clb
Part No SW: 1T0 919 475 P HW: 3T0 919 475 C
Component: PARKHILFE PLA H08 0116
Revision: -------- Serial number: 13991107535032
Coding: 109003
Shop #: WSC 01324 020 00200
VCID: 48996E6FFBDC185E137-801D
No fault code found.
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 5N0-959-655.lbl
Part No SW: 5N0 959 655 R HW: 5N0 959 655 R
Component: J234__201 VW10 HI 1918
Revision: 22014000 Serial number: 003K0P64X1V.
Coding: 0012337
Shop #: WSC 01324 020 00200
VCID: 4C91527F2FA4F47E37F-8019
Subsystem 1 - Serial number: 6332MTS638790711
Subsystem 2 - Serial number: 6342MTS689450671
Subsystem 3 - Serial number: 6351HTS6FF0ES9KR
Subsystem 4 - Serial number: 6361HTS6H0U7S9KR
Subsystem 5 - Serial number: 00000000000000000
Subsystem 6 - Serial number: 00000000000000000
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel (J527) Labels: 5K0-953-569.clb
Part No SW: 5K0 953 501 F HW: 5K0 953 569 H
Component: LENKS.MODUL 009 0122
Revision: FF010E35 Serial number: 20090804200264
Coding: 1082140000
Shop #: WSC 01608 666 41938
ASAM Dataset: EV_SMLSNGVOLWS A03002
ROD: EV_SMLSNGVOLWS.rod
VCID: 2D573FFB7C7EDD76001-8078
Multi Function Steering Wheel Control Module:
Subsystem 1 - Part No SW: 5K0 959 542 A HW: 5K0 959 542 A Labels: 3C8-959-537.CLB
Component: E221__MFL-TAS H07 0013
Coding: 820000
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels: 5K0-920-xxx-17.clb
Part No SW: 5N0 920 972 A HW: 5N0 920 972 A
Component: KOMBI H20 0420
Serial number: 00000000000000
Coding: 410F01
Shop #: WSC 01324 020 00200
ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04089
ROD: EV_Kombi_UDS_VDD_RM09_VW21.rod
VCID: 316F238B6046B996249-8064
No fault code found.
-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels: 7N0-907-530-V2.clb
Part No SW: 7N0 907 530 C HW: 1K0 907 951
Component: J533 Gateway H37 0614
Revision: H37 Serial number: 270311F2002828
Coding: 356003
Shop #: WSC 01324 020 00200
VCID: 3069268F634CB09E2B7-8065
No fault code found.
-------------------------------------------------------------------------------
Address 22: AWD Labels: None
Part No SW: 0AY 907 554 D HW: 0AY 907 554 D
Component: Haldex 4Motion 0042
Coding: 0000005
Shop #: WSC 00000 000 00000
VCID: 4C91527F2FA4F47E37F-8019
No fault code found.
-------------------------------------------------------------------------------
Address 25: Immobilizer (J334) Labels: 5K0-920-xxx-25.clb
Part No SW: 5K0 953 234 HW: 5K0 953 234
Component: IMMO H20 0420
Serial number: 00000000000000
Coding: 000000
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03008
ROD: EV_Immo_UDS_VDD_RM09_SE36.rod
VCID: EADD74E70D108A4EA53-80BF
No fault code found.
-------------------------------------------------------------------------------
Address 2E: Media Player 3 (J650) Labels: 5N0-035-342.lbl
Part No SW: 5N0 035 342 D HW: 5N0 035 342 D
Component: SG EXT.PLAYER H13 0150
Revision: A1001003 Serial number: 7669730040
Coding: 010000
Shop #: WSC 01324 020 00200
VCID: 2859CEEF5B9CF85EF37-807D
No fault code found.
-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels: 1K0-959-701-MIN3.lbl
Part No SW: 5N0 959 701 D HW: 5N0 959 701 D
Component: Tuer-SG 009 2112
Coding: 0000700
Shop #: WSC 01324 020 00200
VCID: 3665109741289EAE71B-8063
No fault code found.
-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: None
Part No: 5N0 909 144 M
Component: EPS_ZFLS Kl. 202 3201
Revision: 00H20000
Shop #: WSC 01324 785 00200
VCID: 3B7301A37A0A43C68E5-806E
No fault code found.
-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels: 1K0-959-702-MIN3.lbl
Part No SW: 5N0 959 702 D HW: 5N0 959 702 D
Component: Tuer-SG 009 2112
Coding: 0000700
Shop #: WSC 01324 020 00200
VCID: 377B1D93462267A66AD-8062
No fault code found.
-------------------------------------------------------------------------------
Address 53: Parking Brake Labels: 3AA-907-801.clb
Part No SW: 3AA 907 801 E HW: 3AA 907 801 E
Component: J540 EPB4 VW-55183 0007
Revision: H18 Serial number: 00000000271920
Coding: 0023057
Shop #: WSC 01324 020 00200
VCID: 33632983525A8B86565-8066
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio (J0503) Labels: 5M0-035-1xx-56.clb
Part No SW: 3C8 035 195 A HW: 3C8 035 195 A
Component: Radio RCD510 041 0166
Revision: 00000001 Serial number: VWZ1Z3L0741978
Coding: 0100040004
Shop #: WSC 01324 020 00200
VCID: 2645C0D75188EE2EC1B-8073
No fault code found.
-------------------------------------------------------------------------------
Address 62: Door, Rear Left Labels: 1K0-959-703-GEN3.lbl
Part No SW: 5N0 959 703 D HW: 5N0 959 703 D
Component: Tuer-SG 007 2102
Coding: 0000144
Shop #: WSC 01324 020 1012552
VCID: 38791EAF4B3C68DE637-806D
No fault code found.
-------------------------------------------------------------------------------
Address 72: Door, Rear Right Labels: 1K0-959-704-GEN3.lbl
Part No SW: 5N0 959 704 D HW: 5N0 959 704 D
Component: Tuer-SG 007 2102
Coding: 0000144
Shop #: WSC 01324 020 1012552
VCID: 397F1BAB703671D69C9-806C
No fault code found.
-------------------------------------------------------------------------------
Address 77: Telephone (J412) Labels: 7P6-035-730.clb
Part No SW: 5K0 035 730 B HW: 5K0 035 730 B
Component: TELEFON H09 1020
Revision: 1B001001 Serial number: 00007669516244
Coding: 0A01000000010101
Shop #: WSC 01324 020 00200
ASAM Dataset: UHVNA A01009
ROD: UHVNA.rod
VCID: 2441DADF2FB41C3EDFF-8071
No fault code found.
End ---------------------------------------------------------------------
Thanks again
MG
Update:
The Tiguan went back in just before the warranty ran out and we said, 'Fix it and keep it as long as it takes to fix it... we're going on Holiday!'
So they did more testing and ended up changing a sensor which is part of the air conditioning system behind the dash. Apparently there have been a few instances of this sensor 'freezing up' due to it's location in relation to the air conditioning evaporator.
We have now had the car back and for 3 months, no re-occurrence of the problem.
If it comes back with the same problem, I'll let you know.
I'll also ask for more details as to which sensor they changed such as a part number etc.
MG
I asked the question this morning and was told that it was indeed the Evaporator Temperature Sensor.
Part No. 1K0 907 543 G
I must stress that as with all modern cars, this part is probably not the correct part for your specific Tiguan do to options, year changes etc so please don't go fitting this to yours without checking if it's correct for your Tiguan first.
MG
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