Hi All, further to my post on Tues about cabin overheating I have contacted several garages without success but one guy intrigued me by saying thhat it  could well be the matrix/heater box within the bonnet which has a seized flap ?? I don't know if this makes any sense to any of you experts but my question is...where is it located ? I have heard from SNG Barratt that it contains the evap for the a/c as well ?? Any clues/hints/tips ? Would it be easier accessing it from the underneath ?? Does the J.O.C provide a detailed diagram of what's where under the bonnet of the S-Type ? Thanks..in anticipation.

hi

if your saying the heater only blows hot, even if set to cold, its a common problem on s-types

its either the DCCV in the engine bay, dual coolant control valve or climate module or both

when the dccv fails it sticks either open or shut, but if they get water in the plug, which usually corrodes due to water, it blows the pcb tracks in the climate module

the module can be easy repair, when removed and opened you will see blown copper tracks, they need soldering

also if you buy a new dccv, cheap ones dont last long at all, better off with a bosch one

cheers

Joe

Thanks Joe; I had a garage say the same thing yesterday so all the experts who said it was the throttle sensor were talking rubbish. I propose to change both. Thanks for your great advice - as you're an electrician (?) can you advise me how to change the interior cabin main light bulb ? The two either side work OK. Cheers R

hi

not too sure on the x-type interior light

but if its the same as the s-type, theres a screw under the glasses flip down pocket,then the light clips off

you have to pull, each side theres about 3 clips each side

cheers

Joe