S TYPE blowing cold all the time regardless of temp setting

[Wee Cy]

Hi newbie here, I have a 2007 2.7 Diesel S type with low mileage, 62,000, in the last week the heating has packed in. I'm not losing any water and engine temp is perfectly normal. New thermostat, water pump and belt fitted 15 months ago although engine temp would lead away from this anyway, any help greatly appreciated.

Edited December 7, 2021 by Wee Cy
Add engine type

[Jimbov8]

Most likely cause will be the DCCV sticking. A quick search will provide more info on the subject.

[Wee Cy]

Thanks for the quick response Jim, I'll go ask uncle google.

[Wee Cy]

Right, had a look on google and it seems quite straight forward, I'll let you know how it goes although I won't get to it until the weekend. That'll give me time to get the new one in ( use or return of course )