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  1. Which coolant pump? 
    #1
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    Hello, had a intermitent issue for a while but now is more and more often, and pending even with MIL off

    Engine code: EA288 CRLB 2.0 TDI 110kw 150 HP

    1 Fault Found:
    28253 - Coolant Pump 3
    P26F8 00 [175] - Stuck
    MIL ON - Confirmed - Tested Since Memory Clear
    Freeze Frame:
    Fault Status: 00000001
    Fault Priority: 2
    Fault Frequency: 1
    Mileage: 172300 km
    Date: 2019.12.30
    Time: 08:33:05

    I am suspecting is one of the electrical coolant pumps, but which one? the one for the charge air cooling inlet manifold or the one for the auxiliary heating one. And yes are 3 water pumps... in total.

    Not sure which one to get the bosch one or pierburg one? anyone knows which puts up this code?
     
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  2. Re: Which coolant pump? 
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    Do you have a code reader?


    Sent from my iPhone using Tapatalk
     
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  3. Re: Which coolant pump? 
    #3
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    Yes that is the heater support pump as opposed to the intercooler pump, TPS and dealers keep both makes in stock as it is such a common problem, you need to take yours off fist to see what make it is.
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (1868-1956)
     
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  4. Re: Which coolant pump? 
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    i would of bought the other one if i would of found your reply but...i hope your wrong tho... if not seems to be a very common thing after one starts playing up the other... goes also... and this is why i think this:


    I just replaced the one in front of the engine today the Bosch one, placed in front of the engine under the oil filter (i needed to do a oil change anyway) part number 5G0965567 as my code was P26F8, the rear auxiliary water pump is supposed to be number 2 and can be either Pierburg 5Q0965561B or again Bosch identical to the one in the front depending on the engine and setup and it suposed to put P261A; my one is Pierburg under the turbo/exhaust. Both are fairly easy to replace as is a plug and 2 one inch hoses to it, and the loss of coolant is minimal (did not register almost at all on the expansion tank and what was drain from the pump was about 50 ml) i used a set of clamps (i have 2 sets)

    4PC 10mm 15mm 25mm 45mm Fluid Line Clamp Set Fuel Coolant Hose Brake Clamps | eBay

    and this is the pump i put in (same as the one i took out) this is installed on all 2.0tdi the one under exhaust (pierburg) is not present on some engine options.

    5G0965567 Water Pump Additional VW Golf 7 PASSAT B8 Sharan 7m Touran II for sale online | eBay

    after i finished everything... put the tester on it my code is not pending anymore (before even if i would delete the code and would be fine for a week or so... would be pending and present when mil on) I also openned the old one has 4 torx t15 and you can access the impeller part... no play not stuck no nothing just a bit of residue here and there... so i think they actually give up on the electronic side not mechanic part...


    Before anyone jumps telling me why i did not disconnect one to see what code is putting up and then the other... is because i done it already and unless the ecu acts upon the respective pump will not put up a DTC...

    Even tho i replaced it by elimination ... i will post any outcome... but seems are a few threads already about the EA288 and P261A and my one... was the other code... i will update if the ghost problem comes back...

    ps: i should change my sig in from staying unde vauxhall over 13 years i am staying under vag group
     
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  5. Re: Which coolant pump? 
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    Update. Code is back, so you where right @Crasher, the other electrical water pump is playing up( pierburg). Ordered and now i am waiting for it to put it on....atleast will both be new now...

    I will update the outcome.
     
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