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Danny, VW Mechanic
Category: VW
Satisfied Customers: 4004
Experience:  ASE Master Certified with L1 Certification, Volkswagen Certified, VW and Audi repair shop owner
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2002, VW Jetta, P1296. what does this code mean?

Customer Question

2002, VW Jetta, P1296. what does this code mean?
Submitted: 8 years ago.
Category: VW
Expert:  Danny replied 8 years ago.


It means you most likely have a faulty thermostat. Does it take a while for your car to get to operating temp? Your temperature should get to 190 within about 2 to 3 miles of startup and never drop below 190 for the duration of your trip. Is this how your car operates? Also check the color of the coolant temperature sensor which is on the side of the cylinder head in the coolant flange if you have a 4 cylinder. If the sensor is black or green with a yellow dot those sensors have known issues and should be replaced to prevent future issues. If it's just a green sensor then I wouldn't mess with it.



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Customer: replied 8 years ago.
ok we changed the thermostat and since it is late will test drive it tomorrow. many thanks in advance for the info.
Expert:  Danny replied 8 years ago.
Not a problem, beware you may have gotten an airbubble in the system so bring a jug of water with you. If it overheats just shut it off and wait a minute and then you will be able to open the coolant bottle and fill it.