Help. engine light, auxiliary coolant pump

[jcdub]

I had an engine light on the car this evening and plugged in the VCDS to see what it was about. I got the following fault:

Sunday,09,September,2012,20:22:26:27301
VCDS Version: Release 11.11.4
Data version: 20120807

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Address 01: Engine Labels: 03L-906-022-CAG.clb
Control Module Part Number: 03L 906 022 FH HW: 03L 906 022 FG
Component and/or Version: R4 2,0L EDC H01 6418
Software Coding: 0105002C02072120
Work Shop Code: WSC 00503 210 88548
ASAM Dataset: EV_ECM20TDI03L906022FH A01009 (AU56)
VCID: 70E5EAF2ABC9B698D15
1 Fault Found:
4875 - Coolant Pump 2
P261A 00 [172] - Open Circuit
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 4
Mileage: 91996 km
Date: 2012.09.09
Time: 14:19:00

Readiness: 1 1 0 0 0

So the Sunday,09,September,2012,20:22:26:27301
VCDS Version: Release 11.11.4
Data version: 20120807

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 01: Engine Labels: 03L-906-022-CAG.clb
Control Module Part Number: 03L 906 022 FH HW: 03L 906 022 FG
Component and/or Version: R4 2,0L EDC H01 6418
Software Coding: 0105002C02072120
Work Shop Code: WSC 00503 210 88548
ASAM Dataset: EV_ECM20TDI03L906022FH A01009 (AU56)
VCID: 70E5EAF2ABC9B698D15
1 Fault Found:
4875 - Coolant Pump 2
P261A 00 [172] - Open Circuit
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 4
Mileage: 91996 km
Date: 2012.09.09
Time: 14:19:00

Readiness: 1 1 0 0 0

The Sunday,09,September,2012,20:22:26:27301
VCDS Version: Release 11.11.4
Data version: 20120807

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 01: Engine Labels: 03L-906-022-CAG.clb
Control Module Part Number: 03L 906 022 FH HW: 03L 906 022 FG
Component and/or Version: R4 2,0L EDC H01 6418
Software Coding: 0105002C02072120
Work Shop Code: WSC 00503 210 88548
ASAM Dataset: EV_ECM20TDI03L906022FH A01009 (AU56)
VCID: 70E5EAF2ABC9B698D15
1 Fault Found:
4875 - Coolant Pump 2
P261A 00 [172] - Open Circuit
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 4
Mileage: 91996 km
Date: 2012.09.09
Time: 14:19:00

Readiness: 1 1 0 0 0

I cleared the code and went back into fault codes and it was back, so I believe it needs to be replaced....
Are these expensive to buy from audi or would you buy else where? Awkard to fit?

Any advice would be appreciated.

[gupsterg]

Any more info?

Looking at your log/guessing is it a 2.0 TDi? CAGB engine code? as yours facelift A6...

Is car overheating? if coolant pump failing on other cars owned seen they drip/leak as sign of imminent failure...

As pump mechanical my opinion as meddler/owner ( ) that it may be a electronic control valve or something on cooling circuit??

[Peter D]

Model year and engine code required. It sounds like you have a faulty over-run coolant pump. Regards Peter

[jcdub]

Model year and engine code required. It sounds like you have a faulty over-run coolant pump. Regards Peter

Hi Peter,

Its a 2009 S Line 2.0 tdi 170 CR with multitronic, engine code CAHA. I havent had any coolant loss or noticed any leaking so far, I cleared the code and started the engine and the engine warning light remained off this time but when I checked for the fault code again it came back.

[jcdub]

Any more info?

Looking at your log/guessing is it a 2.0 TDi? CAGB engine code? as yours facelift A6...

Is car overheating? if coolant pump failing on other cars owned seen they drip/leak as sign of imminent failure...

As pump mechanical my opinion as meddler/owner ( ) that it may be a electronic control valve or something on cooling circuit??

Hi Gupsterg,

Its a CAHA enging code on a facelifted model (2009) No leaks or drips noticed. I haven't had any overheating problems either.... Might require a trip to Audi.... I have vcds if anyone knows how I should go about trouble shooting this....

Pics attached of what I believe to be the auxiliary pump, as I said no coolant loss or leaks found

[jcdub]

Any ideas?

[gupsterg]

I seen that in EPC will get you a price.... this updates monthly but my SG is little out of date I have update for it will install and check for facelift car...

I think the photos really help i) for you ii) for another which will come across thread to get help, good posting

[jcdub]

Can anyone tell me what the part number and if possible cost of a replacement auxiliary pump for my engine code?

[gupsterg]

P/N 03L 965 561 approx. £116

For 2.0 TDI engine codes CAGB, CAHA, CAHB

[jcdub]

P/N 03L 965 561 approx. £116

Thanks gupsterg. Do you know what the difference between the two pumps? Different design? Is one more reliable than the other?