what the hell is going on??...

[europeanme]

after 2 weeks of ownership of my "new" S2 it's developed a weird problem...

When the car is stationary, engine running, the blower blows cold air and when on the move it only blows warm-ish.....it used to run as normal and then stopped....

any ideas?.....thermostat?.....gonna be a cold trip down to Poole later for my first interview!!!....

any help/ideas welcome....

Thanks

[Pirvu Eugen]

temperature regulating flap motor...or potentiometer..

[nigelm]

cold air

I had something similar. Turned out was probably an air bubble as turning the bleed screw (the fragile one on the bulkhead) sorted it. Maybe worth a try initially.

Nigelm

[nip]

i recently had same problem, make sure main rad is full, mine was leakin so remained half empty

[HPmuirt]

temperature regulating flap motor...or potentiometer..

I too have this problem. When stationary, I get cold air at idle, warm air at 1500rpm and hot air at 2500rpm plus.

I am convinced it is caused by a partially blocked heater matrix. Why do you think the the regulator flap or potentiometer would cause this simply by rpm?

Cheers n

Si

[Pirvu Eugen]

no!
I had this problem...but not rpm related...i couldint adjust the temp...i had cool air when stationary and with the car moving i got some heat inside..
At mine..the potentiometer was the problem...
Auto clima also.
Dont know how the manual is working..

[HPmuirt]

Ah, OKie, well until Paul pulls his finger outs and finished his climate conversion, all UK cars are running manual aircon.

Cheers n

Si

[Error404]

try flushing the coolant system with TSP powder - clears out a whole load of crap you wouldn't have thought was in there

drain off the coolant, refill with tap water and add 3/4 cup of Tri-Sodium Phosphate powder, go for a good 1/2 hour drive to get it up to temp and circulating properly... make sure you use all the revs - then drain off while the stat is stil open and be amazed at the crap that comes out

[europeanme]

thanks for the help.....me thinks it may have sorted it self?!?!?....not sure how or why but will keep you posted as I may need some more help....

[Error404]

Cool - for the record I've flushed with TSP every coolant change, so good practice anyway IMO

[Big Lee M]

I got the same problem i have changed the water pump and thermostat but no change for me??????????

[pixsaudisex2]

read your owners manual im sure it tells you because of the way the water pump is they tend to go cold at low revs im sure but my heaters are now excellent after using a dishwasher tablet in the expansion tank.

[Big Lee M]

Theres cold but mine is like having the window open!!!!!!!!!!!!

[Error404]

my heaters are now excellent after using a dishwasher tablet in the expansion tank.

Did it clean all the crap out? Novel technique - i like it

[pixsaudisex2]

as good as any cleaner i have ever used thats for sure.. there is a post on here somewhere about it