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Old 03-25-2012   #1
Touareg Mechanic
 
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Touareg: 2008 V8
Join Date: Jan 2011
Location: Hawaii and Utah
Second Vehicle: is not a VW
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Overheating Problem

I recently noticed that the electric fan runs for a few minutes after I turn off the Touareg so today during a long drive I notice the the temp guage is reading 230 degrees when it is normally between 200 and 210 degrees. The coolant level is fine.

Any ideas as to what may be causing the overheating?

Vag com scan shows a few faults:

Sunday, 25 March 2012, 16:30:49:60350
Chassis Type: 7L - VW Touareg
-------------------------------------------------------------------------------
Address 01: Engine Labels: 077-907-560-AXQ.LBL
Controller: 4D0 907 560 DA
Component: 4.2L V8/5V G 0010
Coding: 0007875
Shop #: WSC 00000
VCID: 68A3D01D1B7D
1 Fault Found:
17887 - Brake Boost Vacuum System: Mechanical Failure
P1479 - 008 - Implausible Signal
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: None
Controller: 7L6 907 040 H
Component: CLIMAtronic R/L X 3716
Coding: 0020020
Shop #: WSC 21024
VCID: 351D49691C4F
1 Fault Found:
01810 - Actuating Motor for Temperature Flap; Right (V159)
000 - - - Intermittent
-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 7L6-937-049.LBL
Controller: 7L6 937 049 K
Component: 2702
Coding: 0100444
Shop #: WSC 21024
VCID: 44FB24AD4795
2 Faults Found:
00907 - Intervention load Management
000 - -
01520 - Rain and Light Recognition Sensor (G397)
008 - Implausible Signal - Intermittent
-------------------------------------------------------------------------------
Address 22: AWD Labels: None
Controller: 0AD 927 755 AB
Component: TRANSFERCASE 0094
Coding: 0000000
Shop #: WSC 00000
VCID: 7B899F517AEB
1 Fault Found:
01314 - Engine Control Module
004 - No Signal/Communication
-------------------------------------------------------------------------------
Address 6E: Ctrl Head Roof Labels: 7L6-919-044.LBL
Controller: 7L6 919 044 C
Component: DACHDISPLAY 0529
Coding: 0000000
Shop #: WSC 00000
VCID: 370143610643
1 Fault Found:
02607 - Control Module (Relay?) for Aux. Water Heater (J737)
004 - No Signal/Communication
End --------------------------------------------------------------------------------------------------

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----------------------------
2008 V8 CAMPANELLA WHITE
NAV, 4 ZONE CLIMATE, DYNAUDIO, BI-XENON
KEYLESS ENTRY/PUSH BUTTON START
LEISTUNG CUSTOM EXHAUST AND CAT BYPASS
----------------------------
2008 AUDI A4 S-LINE
----------------------------
2004 TOUAREG V8 (SOLD)
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Old 03-26-2012   #2
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Touareg: 2008 V8
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Water pump?

Any ideas?

__________________
----------------------------
2008 V8 CAMPANELLA WHITE
NAV, 4 ZONE CLIMATE, DYNAUDIO, BI-XENON
KEYLESS ENTRY/PUSH BUTTON START
LEISTUNG CUSTOM EXHAUST AND CAT BYPASS
----------------------------
2008 AUDI A4 S-LINE
----------------------------
2004 TOUAREG V8 (SOLD)
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Old 03-26-2012   #3
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Perry,

Are all the faults current, do they return after being cleared?

Stuart..
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2008 V6 TDI, Air Suspension, Paddle Shifter, RNS510, Leather Seats, HID BI Xenons, 4 Zone, Sunroof, Towbar & Genuine Trailer Module, Kufatec Fiscon Bluetooth. Retrofitted OEM Reversing Camera, Retrofitted Factory Front Fog Lamps Xenon 3000K, Redarc Brake Controller, Window Tint, Icom ic-208H. T1 Door Warning Lamps, T1 Under Seat Drawer, Alloy Skid Plate

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Old 03-26-2012   #4
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I will clear them before going to work today and check them again after I get there.
__________________
----------------------------
2008 V8 CAMPANELLA WHITE
NAV, 4 ZONE CLIMATE, DYNAUDIO, BI-XENON
KEYLESS ENTRY/PUSH BUTTON START
LEISTUNG CUSTOM EXHAUST AND CAT BYPASS
----------------------------
2008 AUDI A4 S-LINE
----------------------------
2004 TOUAREG V8 (SOLD)
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Old 03-26-2012   #5
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Touareg: 2008 V8
Join Date: Jan 2011
Location: Hawaii and Utah
Second Vehicle: is not a VW
Posts: 1,297
Images: 9
The first 2 are still there:
17887 - Brake Boost Vacuum System: Mechanical Failure
01810 - Actuating Motor for Temperature Flap; Right (V159)

Maybe it's the thermostat. No coolant overheat message though.
__________________
----------------------------
2008 V8 CAMPANELLA WHITE
NAV, 4 ZONE CLIMATE, DYNAUDIO, BI-XENON
KEYLESS ENTRY/PUSH BUTTON START
LEISTUNG CUSTOM EXHAUST AND CAT BYPASS
----------------------------
2008 AUDI A4 S-LINE
----------------------------
2004 TOUAREG V8 (SOLD)
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Old 03-26-2012   #6
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Touareg: 2009 V8
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Posts: 150
Quote:
Originally Posted by Perry01 View Post
17887 - Brake Boost Vacuum System: Mechanical Failure

Noticed that your truck is an 04. The brake vacuum hose from the electronic pump to the booster becomes brittle over time - specially the angle and "T" joints. They will crack resulting in a vcauum leak. Another tell-tale sign is the consistent "running" of electronic pump (humming when brake pedals are depressed).

It would have been a quick fix if VW sold the hoses and fittings separately unfortunately, they are in kits. I think a total of 3 sections at around $90 per section.

Check the lines to see if you can find cracking. Good Luck!
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Old 03-28-2012   #7
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Took it in to the dealer and was told the thermostat was stuck. Extended warranty to pay for the repair and it's not cheap!

While they are in there, I am paying for a new timing belt, water pump and tensioners out of pocket since the warranty company is paying for the labor.
__________________
----------------------------
2008 V8 CAMPANELLA WHITE
NAV, 4 ZONE CLIMATE, DYNAUDIO, BI-XENON
KEYLESS ENTRY/PUSH BUTTON START
LEISTUNG CUSTOM EXHAUST AND CAT BYPASS
----------------------------
2008 AUDI A4 S-LINE
----------------------------
2004 TOUAREG V8 (SOLD)
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Old 03-29-2012   #8
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Very sensible precaution.
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Old 03-29-2012   #9
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Touareg: 2008 V8
Join Date: Jan 2011
Location: Hawaii and Utah
Second Vehicle: is not a VW
Posts: 1,297
Images: 9
Yep, only 56,000 miles on the odometer but the timing belt is 8 years old.
__________________
----------------------------
2008 V8 CAMPANELLA WHITE
NAV, 4 ZONE CLIMATE, DYNAUDIO, BI-XENON
KEYLESS ENTRY/PUSH BUTTON START
LEISTUNG CUSTOM EXHAUST AND CAT BYPASS
----------------------------
2008 AUDI A4 S-LINE
----------------------------
2004 TOUAREG V8 (SOLD)
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Old 03-29-2012   #10
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Well in on miles, well out on time!!

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