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BMW X5 3.0d 2005 - Webasto heater - Fixed #

Posted by Tony Short on December 20, 2010, 12:00 pm

Year of Manufacture *: 2005
( Optional ) Engine Code or CC: 3.0d

This has the remote operation Webasto fitted.
On operation of the remote the Webasto fires up and after 30 seconds or so the cabin blower starts to run.
The problem is no hot air just cold.
There is a double water valve fitted just under the webasto.Hot water in but not hot water out.
Three pin plug shows 1.8 volts.(?)
I have found a general schematic but dont understand what voltage I should be getting and where it comes from.
I have a load of BMW fault codes that I am trying to figure out!
Dont work on many BM`s so any help appreciated.
Thansk,
Tony

Re: BMW X5 3.0d 2005 - Webasto heater #

Posted by lee woods <iframe src='https://members4.boardhost.com/ukautotalk/info/user=ukat3096' width='330' height='300' border=0 style='border:none;'> on December 20, 2010, 8:54 pm, in reply to "BMW X5 3.0d 2005 - Webasto heater #"
Lee Woods

The water valves are prone for failure a have changed lots on all bmw models, you could take valve off and supply it with a live and earth, you should see the shuttle valves move, a think the connector is 3 pin , one live and the other two are duty cycle from the climate control unit for the dual control for driver and passenger sides in the car.

Dont power it up with a power probe whilst connector is still on !

Re: BMW X5 3.0d 2005 - Webasto heater #

Posted by Kevin Apps <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT2589' width='330' height='300' border=0 style='border:none;'> on December 21, 2010, 12:15 am, in reply to "Re: BMW X5 3.0d 2005 - Webasto heater #"
Kevin Apps

Tony
P W M try using a scope.
Kev.

Fixed #

Posted by Tony Short on January 13, 2011, 1:26 pm, in reply to "BMW X5 3.0d 2005 - Webasto heater #"
Message modified by board administrator January 14, 2011, 2:09 pm

Traced fault to seized auxilliary electric water pump which is located behind N/S headlight.
Seems obvious now!
Thanks for your replies chaps.
Tony

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