camera doctor 25 Report post Posted April 21, 2010 Hi all, 2003 E39 530i Touring Travelled to CHCH yesteday ( 160km each way ) and noticed the climate control is not working right. Even when set to coldest ( 16 Degrees ) it seems to be pumping out hot air. The only way I can control temp is the manual dial between the centre dash vents. With the AC on, I do get cold from the dash vents, but Hot from windscreen and feet vents. If I put the AC on, set to coldest, and button pressed to feet, I still get really hot air to my feet! I wonder if the hot water valve is jammed open? The temp gauge is sitting in the middle, so I don't think the whole car is running too hot. Any ideas where to start? Is this something the dealers can diagnose with scanner? My closest dealer is CHCH, but there is an auto sparkie local with generic scanner - would that tell him enough ? Cheers Greg Quote Share this post Link to post Share on other sites
*Glenn* 854 Report post Posted April 21, 2010 (edited) Its most likely to be the heater tap duo valve. You wont need a scanner to check this, unless its something else Edited April 21, 2010 by *Glenn* Quote Share this post Link to post Share on other sites
BM WORLD 1283 Report post Posted April 21, 2010 have heater taps in stock european car parts 092991234 [email protected] thanks brent Quote Share this post Link to post Share on other sites
camera doctor 25 Report post Posted April 21, 2010 Its most likely to be the heater tap duo valve. You wont need a scanner to check this, unless its something else Thanks Glenn, Whereabouts is it located do you know? Is it a major dash out job ? Quote Share this post Link to post Share on other sites
*Glenn* 854 Report post Posted April 21, 2010 (edited) Next to the L/H front strut tower. Incorporates the auxillary water pump and the duo valve on top. Most of these you have to buy the whole pump/valve assembly...about $1,000. These fail regularly... the diaphrams swell up & jam open or closed. If you PM me your chassis# I can be more precise Edited April 21, 2010 by *Glenn* Quote Share this post Link to post Share on other sites
HELLBM 1557 Report post Posted April 21, 2010 $100 from Hellbm Regards Ray 0212435526 Quote Share this post Link to post Share on other sites
nordschleife 0 Report post Posted April 21, 2010 I have a very similar problem on my car. Does the M5 use the same part? I've been told that the M5 has an additional pump... Quote Share this post Link to post Share on other sites