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Audi TT Turbo 2001 - Code P1296 #

Posted by Kevin busbridge on November 19, 2011, 6:19 pm

Year of Manufacture *: 2001

Hello all

First time user could anyone shed more light on this code it seams to be temp related Fault code is P1296 non descriptive have changed coolant temp sensor any help would be much appreciated

Kevin

Re: Audi tt turbo

Posted by Andy Evans <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5518' width='330' height='300' border=0 style='border:none;'> on November 19, 2011, 6:56 pm, in reply to "Audi tt turbo"
Andrew Evans

http://wiki.ross-tech.com/wiki/index.php/17704/P1296/004758

Re: Audi tt turbo

Posted by Gwyn Williams <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5354' width='330' height='300' border=0 style='border:none;'> on November 19, 2011, 7:00 pm, in reply to "Audi tt turbo"
Gwyn Williams

Welcome Kevin, it appears that your code does apply to the engine management coolant sensor, what scanner are you using? Possible problems with wiring or ecu, I would be monitoring live data on the coolant sensor readings. Presume this is the troublesome 4 pin sensor? Is your new sensor a genuine part or one of the rubbish Chinese ones?
Regards, Gwyn

Re: Audi tt turbo

Posted by Jon Morgan <iframe src='https://members4.boardhost.com/ukautotalk/info/user=ukat3190' width='330' height='300' border=0 style='border:none;'> on November 19, 2011, 10:04 pm, in reply to "Re: Audi tt turbo"

Take a look at the Wiki Link Andy posted.

Run the engine from cold & monitor /graph the coolant temp reading in MVB's & monitor the warm up of the engine top & bottom hoses.

The thermostats fail in the open position on this engine logging the fault listed. on a run the engine won't get over 50C.

The water pump impellers crack & freewheel also logging the fault listed. On a run the heater goes cold & the engine temp rises rapidly, radiator stays cool - there will be no return flow through the return pipe to the reservoir when revved.

A previous oil cooler failure can result in sludge buildup / blockages, particularly in the heater causing poor cooling behaviour.

And - the temp senders fail with amazing regularity - often logging -40 or + 140C from startup or readings lurching all over the place on warm up by 10 + degrees, often around the 50 - 70C region. Temp Sender is the most common reason for the DTC you have.

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