Tire Pressure Warning

[TheB1GDude]

Hi all,

I have a 2009 Tiguan, back in early 2010 the rear passenger tire got punctured by a screw so I took it to the dealer and had a plugged. During the 2010 winter season I saw the low pressure warning 2 / 3 times kept checking the air but basically let it go down to a faulty plug so when the weather improved I took it to the dealer and had them check the plug which they told me was fine. Then in 2011 in preparation for the cold weather I had all 4 tires replaced with new ones and all seemed fine but today the warning came on again so I wanted to ask if this could be down to just the cold weather or if the sensor might be faulty or something else?

Many thanks!

[nitroscope8]

When the light comes on, check them with a pressure tester and see what the actual pressure in each tire is.

[TheB1GDude]

Will do - didn't unfortunately have time to do that today but I think the past they have all been between 35 - 38....

Oh and do I need to check the spare also?

[acgator]

Oh and do I need to check the spare also?

Yes.

[nitroscope8]

Your spare is, I think, a temp. spare and has no sensor. It's always a good idea though! Your pressures will be located on the driver door sill. I think your pressures should be 38 psi. If your tires are just 2 psi less than this it can cause a warning to illuminate. If its a warm day out, put them to 40 so it will reduce by 2 psi when it gets cold.

[TheB1GDude]

Well turns out I had a screw in my rear passenger.... which is awesome given that these tires are less than 2 months old... but it at least explains the problem! Taking it in tomorrow to be patched.

Thanks for everyone's help.