Got a problem with my transit, its a bit of an odd one but you may have an idea on what it could be. Its a 2.4 125ps RWD LWB Y reg Mk6 model if it helps

When driving around and keeping a steady speed say 30mph+ and not really stopping much the hot air works fine, however when in traffic and stop starting at lights etc it goes very cold very quickly. Even if I have been driving for 3-4 hours it does it. The temperature of the engine is as normal, there is water in the system and everything appears normal. The only other problem I have noticed is that this started on the same day the van become very sluggish for about 15 mins one morning.

Last week I started the van (very cold and icy) and it seemed very very sluggish, it struggled to get the revs up and didn't really seem to have anything over 3k to offer. After pulling up and starting it again it was fine again, however this problem with the heater has started - it may be coincidence?

Any ideas would be greatly received

 

Does it have Air Con? Could be a problem with the pump tho shouldn't just cut cold like that....

Would imagine there's a problem with the heater matrix somewhere

 

yep it does have air con, does seem a little strange doesnt it! I think its the heater matrix as well, but concerned its the head gasket also

I will enquire about the water pump, could well be playing up.