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Auxiliary / Supplemental Heater


Old 01-06-2014, 01:43 PM
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Default Auxiliary / Supplemental Heater

I have 2012 Q7 3.0 TDi and I am trying to find out what type of supplemental or auxiliary heater the vehicle has. I have read somewhere that Audi stopped using the fuel-fired coolant pre-heaters and started using an electric heater. Can anyone tell me which heater the 2012 Q7 has? I have looked under the vehicle and see no small exhaust for a fuel-fired coolant pre-heater. TYIA!

Last edited by BeechSierra; 01-06-2014 at 01:51 PM.
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Old 01-06-2014, 02:17 PM
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The fuel powered heater is a Webasto unit installed under the front right footwell - drivers side for me, passenger side for you.

On mine, there is an option to turn it off in the heater controls and on my A8, I could set a two event timer over a daily cycle. It may well be possible to set it up the same way on the Q7 if it is turned on using VAG-COM.

On my wife's A4, there is an electric heater which is pretty good really, nearly as quick to heat up as the Webasto one, but it has no timed operation possible due to battery drain.

For the Webasto one it is possible to install a remote control via IOS or Android app and an SMS service to the car. I found one but I cannot really justify the cost - about 250 all-in.
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