Webasto issue...please help!!!

[ivak_86]

The pump works, i have tested it -car off-with ignition key On and gas pedal to the floor for 10-15 seconds and the pump starts.And when turn off the car the pump continue to work about 1 min.By the way when i got the car the aux.heater didn't work and after i read with bmw scanner there was a error "circulation pump" i replaced it and the heater start to work perfectly. If the pump doesn't work it will not start the heater. But the heater makes the all 30 min cycle when turned on- but now blows cold air.

[Clavurion]

Originally Posted by ivak_86

The pump works, i have tested it -car off-with ignition key On and gas pedal to the floor for 10-15 seconds and the pump starts.And when turn off the car the pump continue to work about 1 min.By the way when i got the car the aux.heater didn't work and after i read with bmw scanner there was a error "circulation pump" i replaced it and the heater start to work perfectly. If the pump doesn't work it will not start the heater. But the heater makes the all 30 min cycle when turned on- but now blows cold air.

The circulation from Webasto goes via heater core anyways so there is a discrepancy. It can't be burning properly if it only blows cold.

[ivak_86]

Originally Posted by Clavurion

The circulation from Webasto goes via heater core anyways so there is a discrepancy. It can't be burning properly if it only blows cold.

Yes i know something is wrong, that's what i said. It goes through the all cycle of 30 min, the unit itself is hot, but it blows cold inside. Very strange. Today i checked all the hoses, and some of them are cold some are hot.The hoses on the pump are ,let say cold(warm). When driving the same hoses are very hot.The hose that is on the top of the webasto is hot, the one on the bottom is cold (warm).There are 3 hoses that goes inside the cabin, the left one is cold (warm) the other two are hot.